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Tag: greg redfern

  • Rare cosmic coincidence Saturday in DC area – WTOP News

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    The sky is off to a great start for 2026 as Saturday holds four sky events for stargazers in the D.C. area, including a rare celestial coincidence involving the sun and moon.

    Editor’s note: The sky events are taking place on Saturday. The article has been corrected. 

    The sky is off to a great start for 2026 as Saturday holds four sky events for stargazers in the D.C. area, including a rare celestial coincidence involving the sun and moon.

    First up on Saturday morning is the full wolf supermoon that occurs at 5:03 a.m. and can be seen in the west before dawn. Brilliant Jupiter will be nearby too. You can also use Almanac.com to determine moonrise and moonset for your location.

    The January full moon is the Wolf Moon and it’s a supermoon. It’ll occur overnight on Jan. 2 to 3. The crest of the full moon falls at 10:03 UTC on Jan. 3. That’s 4:03 a.m. CST for folks in central North America. So the moon will be at its fullest on the morning of Jan. 3, but it will appear full on both nights, Jan. 2 and 3. It will glow near bright Jupiter and the twin stars of Gemini, Castor and Pollux. (Courtesy EarthSky.org)

    This is the fourth full supermoon in a row and the first full moon for 2026 and winter.

    You can also check out Friday night as Jupiter and the almost full wolf supermoon will be visible in the east right after sunset, so get those smartphones and cameras ready.

    Next up on Saturday, the Earth is closest to the sun, known as perihelion at 12:16 p.m. Distance will be 91,403,637 miles, or 147,099,894 kilometers.

    Our rare cosmic coincidence Saturday involves January’s supermoon and perihelion occurring on the same day.

    According to a post by EarthSky, “A cool cosmic coincidence kicks off 2026! The first full moon of the year — a supermoon — will coincide with Earth’s closest approach to the sun, known as perihelion.”

    This triple event — closest moon, full moon and closest sun — is rare. A famous example was in January of 1912.

    Experts later speculated that a supermoon near the sun’s 1912 perihelion might have dislodged an iceberg that drifted south for several months before striking the Titanic, according to Earth Sky. But there’s no way to know if that’s true.

    The supermoon and perihelion of 2026 will have effects, some of which you can see, as explained in a video by EarthSky.

    On Saturday after sunset, the very bright, almost full wolf moon meets up with brilliant Jupiter in the east after sunset. The two will be close together for quite the sky sight with the moon illusion. Get out those smartphones and cameras for a beautiful astro pic session.

    Jupiter is at its best and brightest for 2026 in January as it reaches opposition on Jan. 10. If Santa got you a telescope or binoculars, Jupiter must be on your list of things to see with them.

    While you are up and about on Saturday night, don’t forget the Quadrantid meteor shower. The bright moon causes very poor viewing conditions this year, but the shower produces bright meteors that should still be visible. Best time to view it is after midnight to dawn.

    Bundle up, get a warm drink and friends to enjoy this sky sight. You can also tune in to listen live to the Quadrantids.

    Check the Clear Sky Chart for your location for Jan. 3 to 4. If you have a partly cloudy sky forecast during these sky events, it is still worth looking up, as clouds can spectacularly add to the view and images.

    See what else the sky has in store for us in January.

    Follow Greg Redfern on his daily blog to keep up with the latest news in astronomy and space exploration

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    Greg Redfern

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  • What to get the stargazer in your life for the holidays in 2025 – WTOP News

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    This year’s WTOP “Gift Ideas for Stargazers,” coincides with Black Friday and Cyber Monday sales, to possibly help get the best deals for that special someone on your holiday gift list that loves the stars.

    For my annual WTOP “Gift Ideas for Stargazers,” I thought I would get this year’s suggestions out to coincide with Black Friday and Cyber Monday sales, to possibly help get the best deals for that special someone on your holiday gift list that loves the stars.

    Internet shopping and quick shipping can get that star-minded someone their gift fairly quickly with very little hassle — even if that someone is yourself.

    Monthly magazine subscription

    As a first step for someone new to astronomy, I recommend getting them a magazine subscription to either (or both)  Astronomy or Sky and Telescope. An added bonus is that when the magazine arrives each month it will be a reminder of you to that special stargazer. Astronomy and Sky and Telescope also provide a digital version bundled with the print subscription, which comes in handy.

    These monthly magazines and their respective websites are chockfull of observing advice, astronomical equipment, pictures, book reviews, astronomy related ads, news and even monthly observing guides/star charts.

    For full disclosure I am an Sky and Telescope subscriber and have been my whole life; I have also done major feature articles for them and twice have been a total solar eclipse cruise Sky and Telescope staff member. The publication is owned by the American Astronomical Society.

    Smartphone planetarium app

    Here’s another gift item that will keep you on the user’s mind, perhaps every single day — a smartphone planetarium app. This is an app that your smartphone can use to display the sky in a specified location and date or time.

    Some apps even have a feature that allows your smartphone to follow your motion in the sky to identify the area you are looking at. Go to your smartphone app supplier to find space/astronomy apps and read the reviews. I use my Sky Safari Pro App for my iPhone constantly.

    Astronomical calendar

    This is a nifty gift idea that provides your stargazer astronomical information on a daily basis, accompanied by a beautiful and informative astronomical image. These can be used at work or at home. I recommend this one by Astronomy featuring “mysteries of deep space” or an options offered by Amazon. Oh, and when you are on these two websites, shop around for other nifty gifts they have.

    For the best daily coverage of the sky and the Universe as a whole for 2026, my “gold standard” for decades has been the annual Royal Astronomical Society of Canada Observer’s Handbook. Do an internet search on the title to find the best deal, as it is offered by many vendors.

    Books

    There is a literary universe of astronomy and space-related books out there. You’re likely familiar with Amazon and Barnes & Noble, who offer a wide selection of choices, but you could also try BookShop to support smaller local booksellers.

    If you know what piques your stargazer’s interest, you can try and buy a book. But I recommend giving them a gift card they can use to buy a book of their choice. You may want to browse these websites in advance to make sure the gift card has a sufficient value to cover these usually expensive books. This has been a tried and true present to me from family members for decades.

    Meteorite

    For a truly out of this world gift you can buy an actual space rock (or more realistically, a piece of one) from the asteroid belt, the moon or even Mars. I have been a meteorite collector for many years. Truth be told, your avid stargazer is probably frustrated at times with our cloudy weather. Nothing cures this frustration better than holding a piece of the solar system and contemplating where it came from and how it got to Earth.

    When buying these amazing 4.5 billion-year-old rocks from space, you need to know your dealer. New England Meteoritical Services has what I consider to be the best and most reasonably priced presentation sets for purchase, which you can see when you scroll down their webpage. I have personally dealt with them and I highly recommend them. Beware buying in the blind!

    Legos

    Yes, LEGOS with wonderful space-themed kits. For kids who love “Star Wars” this is a great kit. And here is the LEGOS website for space themed kits suitable for all ages. Oh, and I mean “all ages.” Santa (me) is getting me a very impressive Legos Artemis kit.

    Movies

    A great holiday sock stuffer is a space themed movie. “The Star Wars” and “Star Trek” movies (new and old), “Gravity,” “Europa Report,” “Cosmos the Series” (original or new versions), “The Martian,” “Interstellar,” or any of the space-themed offerings from National Geographic, Science Channel, Discovery Channel or the History Channel are excellent.

    Binoculars

    If you have a budding stargazer that wants to see more of the sky than just the eye allows, quality binoculars are the ticket. A whole new view of the sky becomes possible — and as an added bonus, they can be used in daytime for bird watching and sporting events.

    A good pair of binoculars will show impressive detail on the moon, a few galaxies, star clusters and nebulae (you need to know where to look) as well as (if you hold them steady enough) the four major moons of Jupiter. Star colors are richer in binoculars and very pretty to look at.

    I recommend “7×50” binoculars — the 7 refers to the magnification while the 50 is the size of each objective lens in millimeters. This is a good compromise between magnification, light-gathering ability and field of view. Less magnification means less detail but a wider field of view; more magnification reduces field of view while giving more detail. I would not go higher than an 8 in magnification or lower than 50 in objective size for a beginner. There are larger astronomical binoculars out there, but they are best for advanced users.

    You can buy binoculars at sporting goods stores and all of the major chains like Costco, Walmart and Amazon. And there may be some good prices out there this weekend.

    Telescope

    This is the riskiest gift idea on my list. There is nothing quite like getting that first telescope and experiencing “first light” — the first view of the universe through it. But it is risky, because telescopes are an investment, in money and in longevity. There is nothing worse than buying a ‘scope that never gets used because it is too complicated, too heavy or of poor quality — they inevitably collect dust from disuse.

    With the right purchase, there is no reason why a quality telescope will not last a person’s entire lifetime, or at least a good portion of it. Many nights of enjoyment and discovery at the eyepiece or your computer/smartphone/tablet, of a good telescope are pure joy to your stargazer. If this is a family member or significant other, you might even do your telescope observing together.

    There are many telescopes out there and to pick just the right one for your stargazer is a real shot in the dark, so to speak, unless you have insider information. If your astronomer has spent time studying telescopes and selecting a “final one” and letting you know it — go for it. Otherwise, make sure there is a return policy that allows you to get your money back if things don’t work out.

    My recommendation for first telescopes is this: Put together a gift package or card that says you will bankroll the purchase of a new telescope (I recommend setting a price limit as telescopes can cost thousands of dollars) after a selection process has determined the best telescope to buy.

    Here are some online sources you can look over to help you in your selection. Sky & Telescope and Astronomy magazines have sections on how to select a telescope and there are books on the subject as well.

    Going to a local astronomy club or attending a star party can also provide an opportunity to “test drive” different types of telescopes. We have some great resources in the D.C. region to do just this — refer to the Astronomical League list for your area.

    Telescope technology has progressed to a point where we now have smart telescopes compatible with apps on your smartphone and tablet. These are amazing telescopes that literally do everything for you except physically setting them up and turning them on. They are expensive but they incorporate all you need to take astro-photographs with a click.

    I use and own two Unistellar smart telescopes — the auto-focusing Odyssey Pro and the EVSCOPE 2 — as well as a ZWO Seestar S50 — and I love them. I observed and photographed more sky objects in the first few months using them than I did using other telescopes in 50-plus years previously. I was able to find and photograph quasars billions of light years away (!!!), along with James Webb Space Telescope, Artemis I, comets, planets, deep-sky objects and the sun with a safe solar filter. All with astounding ease and results.

    Full disclosure: I am a Global Ambassador for Unistellar, but it is a nonpay position and I am not beholden to the company as a sales representative. I have been involved in beta-testing Unistellar telescopes and associated technology/software upgrades. I am telling you like it is, for me and 25,00-plus other worldwide Unistellar users.

    To complement my Unistellar telescopes, I purchased the much smaller Seestar S50 for its small size (portable for cruise ship trips), larger coverage of the sky and use as a daytime ultra-telephoto lens.

    The parent company, ZWO, has come out with a new Seestar S30, which is even smaller and costs less than the S50.

    These are excellent smart telescopes for stargazers starting out.

    Get online and check out the myriad stargazer specials that are out there.

    I hope this has helped you for your out-of-this-world holiday shopping. Drop me an email if you have any questions.

    Happy Holidays and clear skies.

    Follow Greg Redfern on his daily blog to keep up with the latest news in astronomy and space exploration.

    Get breaking news and daily headlines delivered to your email inbox by signing up here.

    © 2025 WTOP. All Rights Reserved. This website is not intended for users located within the European Economic Area.

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    Greg Redfern

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  • Aurora dazzle DC area with northern lights – WTOP News

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    Sky watchers in the D.C. region may get another chance to see aurora Wednesday night after a dazzling show of northern lights Tuesday.

    On Tuesday night into the early hours Wednesday morning, sky watchers were treated to dazzling and colorful aurora throughout North America, including in the D.C. region.

    Listeners witnessed the sky show starting after 8 p.m., as seen in numerous pictures sent to WTOP.

    The aurora over Great Falls on Tuesday night.
    (Courtesy Jared Angle)

    Courtesy Jared Angle

    Northern Lights on Wednesday night at Ida Lee, Leesburg, Virginia.
    (Courtesy William Dawe)

    Courtesy William Dawe

    Aurora lights in the sky
    Aurora over Sumerduck, Virginia, on Tuesday night.
    (Courtesy Mark Burge)

    Courtesy Mark Burge

    faint aurora in the sky
    The northern lights were visible along Randolph Road in Rockville around 9 p.m. Tuesday evening.
    (WTOP/Dave Dildine)

    WTOP/Dave Dildine

    northern lights in the sky
    Northern lights are seen in Leesburg, Virginia, on Tuesday, Nov. 11, 2025.
    (Courtesy William Dawe)

    Courtesy William Dawe

    aurora in the sky
    Aurora seen in Stafford County, Virginia, on Tuesday, Nov. 11, 2025.
    (Courtesy @NoZoup/X)

    Courtesy @NoZoup/X

    north lights in the sky among the clouds
    Amid the clouds bright and multicolored aurora adorn the Northern horizon.
    (WTOP/Greg Redfern)

    WTOP/Greg Redfern

    northern lights in the sky
    Aurora is seen in Northern Minnesota on Tuesday, Nov. 11, 2025.
    (Courtesy Kelsey Pinckney)

    Courtesy Kelsey Pinckney

    Fueling the sky spectacle was a powerful Level G4 (Severe) geomagnetic storm that lasted for hours. Two videos from National Oceanic and Atmospheric Administration’s Space Weather Prediction Center explained what was occurring at the onset and later on.

    The center issued a forecast Wednesday morning, which predicted: “G3 levels are currently being observed; G4 levels are still expected.”

    Clear Sky Chart (input your location) is very useful to check sky conditions as well as the NOAA and space related social media sites, EarthSky.org and space.com for aurora viewing updates. There also are aurora apps available as well to help you; I use Aurora Pro and Glendale App.

    Your camera and/or smartphone could have significantly improved your chances of detecting and imaging the aurora due to their digital sensors. Even if you did not see aurora, if you photographed the northern horizon, you may have gotten image of them.

    Using a camera or smartphone that can take exposures of several seconds — including using “Night Sky” or “Low Light” settings if your camera has them — gives you your best shot. Steady the camera or use a tripod for best image results. The camera can capture aurora that your eyes did not.

    Good luck, aurora chasers, let’s hope and be ready for another sky spectacle.

    Follow my daily blog to keep up with the latest news in astronomy and space exploration. You can email me at skyguyinva@gmail.com.

    Get breaking news and daily headlines delivered to your email inbox by signing up here.

    © 2025 WTOP. All Rights Reserved. This website is not intended for users located within the European Economic Area.

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  • What’s up in the sky for November 2025? Leonid meteor shower, full hunter’s supermoon – WTOP News

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    WTOP’s Greg Redfern previews what skywatchers can expect for the month of November.

    “What’s up in the sky?” is a recurring feature and publishes on the first of every month. You can find it on WTOP’s The Space Place. Email Greg your space questions and he might answer them in the next edition.

    WTOP’s Greg Redfern joins Ian Crawford to discuss the biggest celestial gifts to check out for November.

    This iPhone image was taken at sea of the Andromeda Galaxy and approximates the view of the elongated galaxy with your eyes and binoculars. (WTOP/Greg Redfern)

    Welcome to WTOP’s monthly feature, “What’s up in the sky?” Each month it features the best the sky has to offer stargazers regarding the moon, planets and stars. Space-related events that might interest you taking place in the D.C. area are included as well.

    Let’s get to the sky for November 2025!

    Must-see sky sights for November

    Full hunter’s supermoon is the largest and brightest full moon for 2025.

    The Leonid meteor shower will take place on the night of Nov. 20 to 21.

    Star of the month: Capella

    In November, be on the lookout for bright Capella in the northeast. It is the first bright winter season star and is beautiful to see rising in the early evening hours. Look for it right after it gets dark as it will “twinkle” with wonderful colors due to being low on the horizon.

    Highlights of the month

    As November begins, the Summer Triangle is headed toward the Western horizon with the Milky Way running through it as it flows across the sky to the northeast. As the night heads into the hours before dawn, the “Winter Milky Way” is visible in the southeast to the northwest.

    You can image the Milky Way with a smartphone and/or camera by taking time exposures. For best results, use a tripod.

    The constellation Pegasus, the Flying Horse, is also known as the “Great Square.” That is because it is a “Great Square” in the eastern sky after dark. It is very easy to see. Attached to Pegasus is the constellation of Andromeda.

    Following the star chart, try to locate a fuzzy spot with your eyes — binoculars will help immensely. When you find it, this is the great Andromeda Galaxy. This is the farthest object at 2.5 million light-years that can be seen with the unaided eye.

    The light from the Andromeda Galaxy that is entering your eye left the galaxy when our ancestors were developing a curved spine to help us walk more efficiently. Pretty amazing.

    Nov. 5: As it gets dark, Saturn and the almost full moon rise in the East a mere two degrees apart.

    Nov. 6: The full hunter’s supermoon is at 7:19 a.m. Eastern Time and rises at sunset in the East. This is the second full supermoon of 2025 and the largest and brightest full moon of 2025. Should be a grand sight at sunset. Get your smartphone/camera ready.

    Please note that a reference I used for the full harvest supermoon in Octobers Whats Uperroneously reported it to be the largest and brightestof 2025.  

    Nov. 17: The Leonid Meteor Shower should be best from 1 a.m. to dawn. Under dark sky conditions, the Leonids exhibit a maximum of about 10 to 15 meteors per hour.

    The moon

    Nov. 5: Full hunter supermoon — largest and brightest full moon for 2025.

    Nov. 12: Last quarter

    Nov. 20: New moon

    Nov. 28: First quarter

    Planets

    Mercury is favorable for Southern Hemisphere viewers at dusk in the west.

    Venus is very low above the eastern horizon before dawn, and will become more difficult to see as it nears the sun’s glare.

    Mars is in the glare of the sun at dusk.

    Jupiter rises in the northeast during the evening hours and is quite bright.

    Saturn is high in the southeast after dark. A great view in a telescope as the rings cast a thin line across the planet.

    Uranus is in the eastern sky after dark. You need a telescope to best observe the planet although it is visible in binoculars.

    Neptune is in the east as it gets dark. You need a telescope to observe the planet.

    Pluto is way out there in the solar system and requires taking images through a telescope spaced days apart to hunt it down.

    DC-area events

    Shenandoah National Park

    Shenandoah National Park’s Big Meadows is an excellent dark sky site. I will be conducting my “Let’s Talk About Space” events at Skyland Lodge Conference Center, so hope to see you there.

    NOVAC General Meeting

    George Mason University. Check the calendar for astronomy events.

    The Analemma Society

    The Analemma Society has resumed observatory operations. Check the link regarding Friday Night Public Viewing Sessions at Turner Farm in Great Falls, Virginia. Check their calendar for other astronomy activities in November.

    Smithsonian National Air and Space Museum

    Other groups holding events in September include Virginia State Parks and the National Capital Astronomers.

    You can check here and here for astronomy clubs that are outside the D.C. area.

    Bonus!

    Download NASA’s 2025 Science Calendar that features out-of-this-world pictures and information.

    The Planetary Society’s Space Events 2025 Calendar is another resource for tracking space missions.

    Use this useful tool to create a custom star chart for your location to help you find your way around the stars.

    You can also send in any space-related questions to my email address. Suggestions about this feature are also welcome.

    Follow Greg Redfern on FacebookBluesky and his daily blog to keep up with the latest news in astronomy and space exploration.

    Get breaking news and daily headlines delivered to your email inbox by signing up here.

    © 2025 WTOP. All Rights Reserved. This website is not intended for users located within the European Economic Area.

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    Greg Redfern

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  • What’s up in the sky for October 2025? Demon Star Orionid meteor shower, full harvest supermoon – WTOP News

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    WTOP’s Greg Redfern previews what skywatchers can expect for the month of October.

    “What’s up in the sky?” is a recurring feature and publishes on the first of every month. You can find it on WTOP’s The Space Place. Email Greg your space questions and he might answer them in the next edition.

    October has some great sky sights to see. On the 19th, the waning crescent moon with Earthshine and Venus pair up for a beautiful view. (WTOP/Greg Redfern)

    Welcome to WTOP’s monthly feature, “What’s up in the sky?” Each month it features the best the sky has to offer stargazers regarding the moon, planets and stars. Space-related events that might interest you taking place in the D.C. area are included as well.

    Let’s get to the sky for October 2025!

    Must-see sky sights for October

    During October 2025, Venus continues to be the “Morning Star” in the east before dawn, albeit lower in the sky but still bright. The beautiful and bright winter constellations keep Venus celestial company making for a wondrous sky sight. The moon joins up with Venus too for a must-see sky sight.

    The zodiacal light will be visible in the eastern pre-dawn sky for about two weeks starting on the 19th.

    The Orionid Meteor Shower will happen on the night of Oct. 20-21.

    Star of the month: Algol

    In October, be on the lookout for Algol — the “Demon Star” — so named because of its regular change in brightness. Algol is a variable star that undergoes very regular intervals between its maximum and minimum brightness. You can use this tool to determine when Algol will be at its dimmest for several hours.

    It is quite intriguing to watch the star change brightness. You can try imaging this process as well with your camera/smartphone.

    Highlights of the month

    On Oct. 1 in the southwest, the center and brightest part of our galaxy, the Milky Way, is visible for a few hours after dark before it sets. You need a dark sky site and a moonless night to see the Milky Way at its best.

    As October begins, the Summer Triangle is high overhead with the Milky Way running through it as it flows across the sky to the northeast. As the night heads into the hours before dawn, the “Winter Milky Way” is visible in the southeast to the northwest. You can see the Milky Way with a smartphone and/or camera by taking time exposures. For the best results, use a tripod.

    Oct. 4: International Observe the Moon Night is on this night. Check out the website for information on events, and of course, the moon!

    Oct. 5: As it gets dark, Saturn and the almost full moon rise in the east — a mere two degrees apart.

    Oct. 6: The full harvest supermoon is at 11:47 p.m. Eastern Time and rises at sunset in the East. This is the first full supermoon of 2025 and the largest and brightest full moon of 2025. Should be a grand sight at sunset! Get your smartphone/camera ready.

    Oct. 9: Starting at 11:30 p.m. and lasting for about 2.5 hours, the bright moon passes through the Pleiades star cluster late in the evening covering, or occulting, some of the stars. Binoculars will enhance the view.

    Oct. 19: A must see in the pre-dawn sky in the east is the very old, waning crescent moon with Earthshine joining up with Venus at just four degrees apart. Try taking a smartphone/camera picture.

    Oct. 19: While looking at the moon and Venus, be on the lookout for the zodiacal light. For about two weeks, it will be visible in the northern hemisphere in the eastern pre-dawn sky, and for the southern hemisphere in the west after sunset. You will need a dark sky site and clear horizon to see this ghostly pyramid shape in the sky. Try taking a smartphone/camera picture.

    Night of Oct. 20-21: The Orionid Meteor Shower graces our dark, moonless sky. Under these sky conditions, the Orionids exhibit a maximum of about 10-20 meteors per hour.

    Oct. 24: If you have a straight line horizon in the southwest with no obstructions, at twilight look to the southwest to see the young waxing crescent moon very near Antares. To the lower right and just above the horizon Mercury and dimmer Mars are paired up. You will most likely need binoculars to see this. Try taking a smartphone/camera picture.

    The moon

    Oct. 6-7: Full harvest supermoon

    Oct. 13: Last quarter

    Oct. 21: New moon

    Oct. 29: First quarter

    Planets

    Mercury is favorable for Southern Hemisphere viewers.

    Venus is bright but lower above the eastern horizon before dawn. You can’t miss it.

    Mars is in the glare of the Sun at dusk.

    Jupiter rises in the northeast around midnight and is quite bright.

    Saturn rises in the east as it gets dark. A great view in a telescope will help see as the rings cast a thin line across the planet.

    Uranus is in the eastern sky after dark. You need a telescope to best observe the planet, although it is visible in binoculars.

    Neptune is in the east as it gets dark. You need a telescope to observe the planet.

    Pluto is way out there in the solar system and requires taking images through a telescope spaced days apart to hunt it down.

    DC-area events

    International Observe the Moon Night has several events around the D.C. region.

    Shenandoah National Park

    Shenandoah National Park’s Big Meadows is an excellent dark sky site and there are a variety of activities for you to enjoy throughout the Park. I will be conducting my “Let’s Talk About Space” events, so hope to see you there. If you visit Shenandoah National Park, be sure to check out the rangers’ schedule as they host astronomy events as well.

    NOVAC General Meeting

    George Mason University. Check the calendar for astronomy events.

    The Analemma Society

    The Analemma Society has resumed observatory operations. Check the link regarding Friday Night Public Viewing Sessions at Turner Farm in Great Falls, Virginia. Check their calendar for other astronomy activities in October.

    Smithsonian National Air and Space Museum

    • The museum has loads of astronomy stuff in D.C. and Chantilly for October.

    Other groups holding events in October include Virginia State Parks and the National Capital Astronomers.

    You can check here and here for astronomy clubs that are outside the D.C. area.

    Bonus!

    Download NASA’s 2025 Science Calendar that features out-of-this-world pictures and information.

    The Planetary Society’s Space Events 2025 Calendar is another resource for tracking space missions.

    Use this useful tool to create a custom star chart for your location to help you find your way around the stars.

    You can also send in any space-related questions to my email address. Suggestions about this feature are also welcome.

    Follow Greg Redfern on FacebookBluesky and his daily blog to keep up with the latest news in astronomy and space exploration.

    Get breaking news and daily headlines delivered to your email inbox by signing up here.

    © 2025 WTOP. All Rights Reserved. This website is not intended for users located within the European Economic Area.

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    Greg Redfern

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  • What’s up in the sky for September 2025? Zodiacal light, Milky Way and Autumnal Equinox – WTOP News

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    September is the Autumnal Equinox — the beginning of fall — in the Northern Hemisphere. Here’s a look at “What’s up in the sky” in the D.C. region this month.

    “What’s up in the sky?” is a recurring feature and publishes on the first of every month. You can find it on WTOP’s The Space Place. Email Greg your space questions and he might answer them in the next edition.

    From a dark sky site the Zodiacal Light will be visible before sunrise in the pre-dawn hours starting mid-September. This photo shows the pyramid shaped ghostly light with Venus and the Milky Way taken at Skyland, Shenandoah National Park. (WTOP/Greg Redfern)

    Welcome to WTOP’s monthly feature, “What’s up in the sky?” Each month it features the best the sky has to offer stargazers regarding the moon, planets and stars. Space-related events that might interest you taking place in the D.C. area are included as well.

    Let’s get to the sky for September 2025!

    Must-see sky sights for September

    During September 2025, Venus continues to be the “Morning Star” in the east before dawn, albeit lower in the sky, but still bright. The beautiful and bright winter constellations keep Venus celestial company.

    September is the Autumnal Equinox — the beginning of fall — in the Northern Hemisphere.

    The Northern Lights may be visible from parts of the D.C. region on the first two nights of the month.

    The zodiacal light will be visible in the eastern predawn sky for about two weeks starting on Sept. 19.

    The moon has some beautiful close pairings with stars and planets.

    Star of the month: Polaris

    In September and every night of the year and anywhere above Earth’s equator, Polaris marks almost true north. Polaris can be seen in cities and everywhere on the planet that is near or above the equator. Its parent constellation Ursa Minor — Little Bear — rotates around Polaris, as does the whole northern sky. Just face north and look up.

    Highlights of the month

    As we go through September, each night in the south-southwest of our galaxy, the Milky Way is absolutely resplendent and sprawling as it flows across the sky to the northeast.

    You need a dark sky site to see the Milky Way at its best. As September begins, the Milky Way is well up in the sky after dark and the “Summer Triangle” is nearly overhead. As the night heads into the hours before dawn, the “Winter Milky Way” is visible in the southeast to the northeast. You can image the Milky Way with a smartphone and/or camera by taking time exposures. For best results, use a tripod.

    Sept. 1: The National Oceanic and Atmospheric Administration said there is a category G3 geomagnetic storm possible on Sept. 2 and a G2 category storm on Sept. 1. For the D.C. region, the two-day aurora forecast and our forecast partly cloudy skies mean we may detect aurora to the north.

    Sept. 1: Predawn eastern horizon: Venus is very near the Beehive Cluster. Mercury and the star Regulus keep each other company just above the predawn horizon around 5:30 a.m. local time.

    Binoculars will really help you see these two events.

    You can also see Jupiter high above Venus to form a line of three predawn visible planets.

    Sept. 7: The full corn moon is at 2:09 p.m. and rises at sunset in the east. This is the last full moon of summer.

    Sept. 13, 14: The star Spica and Mars meet in the west-southwest in twilight. The attraction lies in seeing the color contrast between the reddish Mars and the icy blue Regulus. Binoculars will really help you see these two and their color.

    Sept. 19: A must-see in the predawn sky in the east is the very old waning crescent moon with Earthshine joining up with Venus and the star Regulus. Try taking a smartphone/camera pic.

    Sept. 19: For about two weeks, the Zodiacal Light will be visible in the northern hemisphere in the eastern predawn sky and in the southern hemisphere in the west after sunset. You will need a dark sky site and a clear horizon to see this ghostly pyramid shape in the sky. Try taking a smartphone/camera pic.

    Sept. 21: Saturn at opposition — see planets section below.

    Sept. 22, 2:19 p.m.: Autumnal Equinox — the beginning of Fall — in the Northern Hemisphere and Spring in the Southern Hemisphere.

    Sept. 23: Neptune at opposition — see planets section below.

    Sept. 27: Right after dark, look to the southwest to see the young waxing crescent moon near Antares and the Milky Way. Try taking a smartphone/camera pic.

    The moon

    Sept. 7: Full corn moon — Total lunar eclipse Eastern Hemisphere. Not visible in the Americas.

    Sept. 14: Last quarter

    Sept. 21: New moon — Partial solar eclipse Southern Hemisphere. Not visible in the Americas.

    Sept. 29: First quarter

    Planets

    Mercury is very low on the eastern horizon on Sept. 1 but is soon lost in the sun’s glare.

    Venus is bright but lower above the eastern horizon before dawn, you can’t miss it.

    Mars will be low in the western sky at twilight and will be getting closer to the glare of the Sun at month end.

    Jupiter rises in the northeast around 2:30 a.m. local and is quite bright.

    Saturn rises in the east as it gets dark and on Sept. 21 is opposite the sun, rising at sunset. A great view in a telescope as the rings cast a thin line across the planet.

    Uranus is in the eastern sky well after dark.

    Neptune rises in the east as it gets dark and on Sept. 23 is opposite the sun, rising at sunset near Saturn. You need a telescope to observe the planet.

    Pluto is way out there in the solar system and requires taking images through a telescope spaced days apart to hunt it down.

    DC-area events

    Shenandoah National Park

    • Shenandoah National Park’s Big Meadows is an excellent dark sky site and there are a variety of activities for you to enjoy throughout the Park. I will be conducting my “Let’s Talk About Space” events, so hope to see you there. If you visit Shenandoah National Park, be sure to check out the rangers’ schedule as they host astronomy events as well.

    NOVAC General Meeting

    The Analemma Society

    • The Analemma Society is pausing operations and work with Fairfax County Park Authority regarding Friday Night Public Viewing Sessions at Turner Farm in Great Falls, Virginia, temporarily. Check its calendar for other astronomy activities in September.

    Smithsonian National Air and Space Museum

    • The museum has loads of astronomy stuff in D.C. and Chantilly for September.

    Other groups holding events in September include Virginia State Parks and the National Capital Astronomers.

    You can check here and here for astronomy clubs that are outside the D.C. area.

    Bonus!

    Download NASA’s 2025 Science Calendar that features out-of-this-world pictures and information.

    The Planetary Society’s Space Events 2025 Calendar is another resource for tracking space missions.

    Use this useful tool to create a custom star chart for your location to help you find your way around the stars.

    You can also send in any space-related questions to my email address. Suggestions about this feature are also welcome.

    Follow Greg Redfern on FacebookBluesky and his daily blog to keep up with the latest news in astronomy and space exploration.

    Get breaking news and daily headlines delivered to your email inbox by signing up here.

    © 2025 WTOP. All Rights Reserved. This website is not intended for users located within the European Economic Area.

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  • The Northern Lights may be visible from the DC area Wednesday night. Here’s how to get a glimpse – WTOP News

    The Northern Lights may be visible from the DC area Wednesday night. Here’s how to get a glimpse – WTOP News

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    The Northern Lights may be visible in the D.C. area Wednesday night. WTOP’s Greg Redfern explains how to catch a glimpse.

    A very rare “red Northern Lights” over Virginia in 2003. (Greg Redfern)(WTOP/Greg Redfern)

    Here we go again, and so soon!

    Aurora finally lit up Virginia skies the nights of Oct. 7 and 8, which was a bit later than had been predicted by the National Oceanic and Atmospheric Administration Space Weather Prediction Center as related in my story. That event did achieve the G3 (Strong) level to produce aurora.

    SWPC issued an alert Wednesday morning for a G4 (Severe) or greater event for Oct. 10 and 11. As stated in the alert:

    “Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.

    Induced Currents — Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.

    Spacecraft — Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.

    Navigation — Satellite navigation (GPS) degraded or inoperable for hours.

    Radio — HF (high frequency) radio propagation sporadic or blacked out.

    Aurora — Aurora may be seen as low as Alabama and northern California.”

    This Geomagnetic Storm Watch is in effect due to a large coronal mass ejection that occurred Sunday. The coronal mass ejection was caused by a powerful solar flare that lasted for four hours!

    This geomagnetic storm and associated aurora event forecast is not predicted to reach the historic levels of May 10 of this year. But, we should be watching the skies because if the forecast holds for G4 (Severe), and especially if G5 (Extreme) levels are reached, it could be quite the sight.

    For the D.C. region on Wednesday night, the forecast shows we may detect aurora to the North thanks to our forecasted clear skies

    If the Space Weather Prediction Center forecast holds, aurora conditions may be strong enough the night of Oct. 10-11 to allow us to detect aurora visually and with our cameras.

    It will be well worth taking a look to the north from a dark sky site with a clear horizon at times when G4 levels — see forecast below — are reached. The higher the number, the better chances for aurora. This forecast can change.

    The Space Weather Prediction Center’s three-day NOAA geomagnetic activity observation and forecast is below:

    Oct. 10

    8 p.m. to 11 p.m. — 8.83 (G4 Severe)

    Oct. 11

    11 p.m. (Oct. 10) to 2 a.m. — 8.00 (G4 Severe)

    2 a.m. to dawn — 7.00 (G3)

    Analysis of the CME associated with the X1.8 flare suggests further enhancement 10 Oct into 11 Oct, reaching G4 (Severe) levels is likely with G5 (Extreme) levels possible.

    You might be able to visually detect some color in the sky if aurora are present, but they will likely be low on the northern horizon. Wide field binoculars can enhance your view if aurora are present.

    Use a camera or smartphone that can take exposures of several seconds — including using “Night Sky” or “Low Light” settings if your camera has them — of the northern horizon. Steady the camera or use a tripod for best image results. The camera may capture aurora your eyes did not.

    Our best bet is to monitor WTOP’s weather page for sky conditions, the NOAA, space-related social media sites, EarthSky.org and space.com for updates.

    Spaceweather.com — I check this site every day just as I do my local weather — has a daily snapshot of what the space weather in the solar system is going to be like and a current image of the sun.

    With our terrestrial weather being such a factor in our daily lives here in the D.C. area, and frankly, the rest of the world, we are also directly affected by space weather, which can produce a variety of events, including Wednesday’s geomagnetic storm and aurora.

    Space Weather, like our terrestrial weather, is caused by Earth’s interaction with our star, the sun. We know it will be there every new day and count on it for life-giving warmth and energy. We also have become accustomed to it being well behaved. What many people may not know is that our sun undergoes an 11-year solar cycle that can affect space weather throughout our solar system.

    Our sun is a 4.5-billion-year-old star that we have been monitoring since Galileo.

    The sun had an episode of disturbed behavior in 1859 that, if it were to occur today, could adversely affect us if we were not prepared.

    In 1859 on Sept. 1, the sun experienced a solar storm episode that was observed by solar astronomer Richard Carrington that ended up bearing his name — “the Carrington Event.” This was a watershed event in solar astronomy and also the sun’s effect on the Earth, as nothing like it has been seen since.

    If a Carrington-level solar event were to happen today, the affect on modern society’s infrastructure could be potentially catastrophic, especially the electrical grid, which powers everything else. If you think this is unlikely, or too sci-fi to be true, I suggest you read the report by the National Academies of Science published in 2008.

    Last year, the sun had a very powerful space weather event on March 12, which, fortunately for us, occurred on the far side of the sun.

    You listen to WTOP for “traffic and weather together on the eights.” Maybe now you will want to include a check on space weather too as part of your daily weather routine.

    I will be at Peaks of Otter on Wednesday night and I must say, I am excited! I think it may be an all-nighter!

    Good luck, aurora chasers …

    Follow Greg Redfern on Facebook, X and his daily blog to keep up with the latest news in astronomy and space exploration.

    Get breaking news and daily headlines delivered to your email inbox by signing up here.

    © 2024 WTOP. All Rights Reserved. This website is not intended for users located within the European Economic Area.

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  • The DC area is in for another geomagnetic storm — which means another opportunity to see the Northern Lights – WTOP News

    The DC area is in for another geomagnetic storm — which means another opportunity to see the Northern Lights – WTOP News

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    For skywatchers and wannabe Aurora (Northern lights) chasers, space weather conditions are currently predicted to be favorable Monday night.

    Monday, July 29, 2024’s sun imaged with a telescope and solar filter. (WTOP/Greg Redfern)

    Here we go again.

    For skywatchers and wannabe Northern Lights chasers, space weather conditions are currently predicted by National Oceanic and Atmospheric Administration’s (NOAA) Space Weather Prediction Center (SWPC) to be favorable Monday night.

    The current predicted line of visibility on the northern horizon is in the lower part of Pennsylvania. That is close enough to make it worth the D.C. area taking a look. I expect this forecast will change as the day goes on, since space weather conditions are still developing. SWPC will issue updates as they are warranted.

    Geomagnetic storm watches are out Monday to Wednesday due to a number of coronal mass ejections (CMEs) — large expulsions of plasma and magnetic field from the sun’s corona in the outermost part of the sun’s atmosphere, according to NOAA.

    Solar activity was elevated through the weekend and various events, including solar flares and filament eruptions associated with CMEs, NOAA SWPC said. Some CMEs could arrive Tuesday and into Wednesday. NOAA said the ones that arrived Monday could result in G1 or minor storm levels, but most of the activity will liley take place on Tuesday, when CMEs from Saturday and Sunday arrive.

    “This could lead to G2-G3 levels as indicated by the WSA-Enlil model,” NOAA SWPC said, with more continuing into Wednesday.

    This geomagnetic storm and associated aurora event are not predicted to reach the historic levels, such as the last one on May 10. It’s far more likely that we could experience an event like in March, which involved a similar G3 (strong) geomagnetic storm. NOAA Space Weather Scale descriptions can be found online.

    The best bet is to monitor WTOP Weather for sky conditions, and the NOAA, plus other space-related social media sites, including EarthSky.org, space.com and space weather physicist Tamitha Skov’s X for updates. It will be worth taking a look to the north from a dark sky site with a clear horizon. You might be able to detect some color in the sky if aurora are present but they would likely be low on the northern horizon. Wide field binoculars will help your search.

    Use a camera or smartphone that can take exposures of several seconds — including using “night sky” or “low light” settings if your camera has them — of the northern horizon. Steady the camera or use a tripod for best image results. The camera may capture aurora that your eyes did not.

    The D.C. area had several aurora events visible in 2023, including in March and November. And the area is on a roll for 2024, with more coming in all probability.

    I check spaceweather.com every day just as I do my local weather. The site has a daily snapshot of what the space weather in the solar system is going to be like and a current image of the sun.

    Monday’s posting explains what happened on the sun the past few days to cause the current space weather. My image of Monday’s sun shows a lot of sunspots.

    With terrestrial weather being such a factor in the daily lives here in the D.C. region, and frankly the rest of the world, space weather has a direct effect, and can produce a variety of events, including Monday’s geomagnetic storm and the aurora.

    Space weather, like terrestrial weather, is caused by Earth’s interaction with the sun. While giving warmth and energy every day, what many people may not know is that it undergoes an 11-year solar cycle that can affect space weather throughout the solar system.

    The sun is a 4.5-billion-year-old star that humans have been monitoring since the time of Galileo. Currently, humans have a fleet of spacecraft that monitor the sun and space weather 24 hours, 7 days a week, 365 days a year.

    The sun is currently in Solar Cycle 25 and is at Solar Maximum. At Solar Maximum, the sun produces more sunspots and solar events, which produce space weather events like Monday’s level G3 geomagnetic storm. In fact, solar researches believe the sun is already starting Solar Cycle 26.

    The sun had an episode of disturbed behavior centuries ago. On Sept. 1, 1859, the sun experienced a solar storm episode that was observed by solar astronomer Richard Carrington and ended up bearing his name: “The Carrington Event.” This was a watershed event in solar astronomy and the sun’s effects on the Earth, unlike anything that’s happened since.

    If a Carrington-level solar event were to happen today, the impact on modern society’s infrastructure could be potentially catastrophic, especially the electrical grid which powers everything. If you think this is unlikely or “too sci-fi” to be true, I suggest you read the report by the National Academies of Science published in 2008.

    You listen to WTOP for “traffic and weather together on the 8s.” Maybe now you will want to include a check on space weather, too, as part of your daily weather routine.

    Follow Greg Redfern on Facebook, X and his daily blog to keep up with the latest news in astronomy and space exploration.

    Get breaking news and daily headlines delivered to your email inbox by signing up here.

    © 2024 WTOP. All Rights Reserved. This website is not intended for users located within the European Economic Area.

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