#zodiacallight — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #zodiacallight, aggregated by home.social.
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The 2nd contact of the #ArtemisII solar eclipse filmed with an out of focus (!) cellphone: https://x.com/NASAArtemis/status/2065456312071168057 - the astros are describing some K #corona streamers appearing. (During most of the eclipse only the #ZodiacalLight had been visible behind the huge Moon as the paper https://iopscience.iop.org/article/10.3847/2041-8213/ae71c8 - summarized in Japanese in https://www.tcu.ac.jp/en/news/all/20260609-71681/ which auto-machine-translates into English - has explained.)
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SKYSURF-11 - a New #ZodiacalLight Model Optimized for Optical Wavelengths: https://iopscience.iop.org/article/10.3847/1538-4357/ae4512 -> interview with the first author: https://www.youtube.com/watch?v=aQoe4espVzc
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This image introduces a very specific scientific phenomenon:
Zodiacal Light: That bright, whitish pillar of light rising from the center-right of the horizon is "false dawn." It’s caused by sunlight scattering off a disk of interplanetary dust in the inner solar system. It’s the dust of our own "neighborhood" (the planets) caught between us and the deep galaxy.
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This slide from the #coronagraphs symposium in Boulder from the talk by Sam van Kooten is quite enlightening: it shows two processing steps of a #PUNCH WFI composite, on the left still dominated by the F corona i.e. #ZodiacalLight i.e. interplanetary dust (just as seen in the Artemis II eclipse images) while on the right the - at such distance from the Sun muuuch fainter - K corona has been brought out which traces the Sun's magnetic field.
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.. annotated version of previous post
Three Sky Arches over Snowy Alps
* Image Credit & Copyright: Angel Fux
https://www.angelfux.com/
https://www.levoyageur.ch/women-invited/angel-fuxComment by Angel Fux on Instagram:
"It took months of planning, three nights of acclimatization at 3,100m, a window that nearly disappeared twice because of wind, a bank holiday that grounded helicopters, a pilot found last minute on the Italian side of the border, temperatures around minus 25°C, a night that got windier than forecasted, and forty hours of editing with a process I had never used before.
What I set out to capture was the double Milky Way arch, the only night of the year where both arms of the Milky Way are visible above the horizon. The winter arch first, then the summer arch carrying the galactic core, from a summit with a view of the Matterhorn that almost no one ever sees.
What I didn’t plan for was the Gegenschein, a rare counterglow caused by interplanetary dust reflecting sunlight, appearing as a third faint arch crossing the frame. A triple arch, in the end.The final image is a tracked panorama built from over 260 individual exposures: 17 panels for the winter arch and 16 for the summer arch, each panel a stack of 4 frames at 40 seconds, supplemented with H-alpha data, plus 32 landscape shots at nautical twilight. The working folder came to around 300GB.
I am deeply grateful to @lehnerrichi and @arnaudlehner , who made this safe and possible, and to @begibakar_travel , who taught me the processing workflow that brought this image to life. And big thank you to my loved ones for their endless support."
📍 Dent d’Hérens, Swiss Alps, 4,200m
https://www.instagram.com/p/DWbq_YKjW0X/
#space #earth #zodiacalLight #gegenschein #astrophotography #photography #NASA #science #physics #nature #education
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2026 April 21
Three Sky Arches over Snowy Alps
* Image Credit & Copyright: Angel Fux
https://www.angelfux.com/
https://www.levoyageur.ch/women-invited/angel-fuxExplanation:
Why are there three arches across the sky instead of two? Last month, after being dropped off by a helicopter at a high mountain peak in the Alps near the Swiss Italian border, an adventurous astrophotographer expected two arches of our Milky Way galaxy to be visible during the night. These were the inner arch looking in toward the center of our galaxy on the left, visible just before sunrise, and the outer arch on the right visible just after sunset. But there were three arches. The surprised astrophotographer soon realized that the sky was so dark that an entire arc of faint zodiacal light was also noticeable -- sunlight scattered by inner Solar System dust. And it artfully connected the two Milky Way arches! The next morning a helicopter picked the astrophotographer back up, and after 40 hours of processing and combining that night's images, the featured triple-arch 360-degree panorama resulted.
https://blog.angelfux.com/p/triple-arch-at-4200m-matterhorn
https://youtu.be/rxeK5Q2N-Is?t=617
https://en.wikipedia.org/wiki/Alps
https://en.wikipedia.org/wiki/Switzerland
https://en.wikipedia.org/wiki/Italy
https://science.nasa.gov/asset/webb/milky-way-and-our-location/
https://capturetheatlas.com/best-time-to-see-the-milky-way/
https://apod.nasa.gov/apod/ap251109.html
https://apod.nasa.gov/apod/ap220312.html
https://www.levoyageur.ch/women-invited/angel-fux
https://apod.nasa.gov/apod/ap200408.html
https://apod.nasa.gov/apod/ap170429.html
https://en.wikipedia.org/wiki/Zodiacal_light
https://eyes.nasa.gov/apps/solar-system/#/home
https://www.instagram.com/p/DWbq_YKjW0X/https://apod.nasa.gov/apod/ap260421.html
#space #earth #zodiacalLight #gegenschein #astrophotography #photography #NASA #science #physics #nature #education
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The Total Solar Eclipse from Artemis II
This image sequence was captured by a modified GoPro on the solar array of the Orion spacecraft while the Artemis II mission flew around the farside of the moon.
Credit: NASA/Simeon Schmauß
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I really can't stop looking at this photo - We usually think of space as being entirely empty and dark, but our Sun has a lot of dust around it that we can rarely see. This so called Zodiacal light is giving the moon this eerie backlit glow.
And four people really have been there and witnessed this yesterday, absolutely blows my mind!
Credit: NASA
Processing: Simeon SchmaußFull quality: https://flic.kr/p/2s6ionW
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Another view of the #ZodiacalLight behind the #Moon, from a camera on the solar cells. And the daily #ArtemisII press conferences resume now, the first one post-flyby coming up at the bottom of the hour: https://www.youtube.com/watch?v=5YWATA3d5dU
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Part of the #ZodiacalLight and #earthshine - with Mare Crisium - in yet another #ArtemisII image: https://images.nasa.gov/details/art002e009298
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The #ArtemisII picture I had been waiting for - the dark Moon with a bit of #earthshine on the left in front of the #zodiacalLight going all around: https://images.nasa.gov/details/art002e009301 (this is essentially the Apollo 11 image from 1969 - https://www.facebook.com/dan.fischer.393/posts/pfbid02mf6UK3L2j5SgPiQsJk9JVYmo6XvZwDDZ23BYpXwJPDszaSpUYzuinkMyHzh9RF8Rl - again but with the Sun more centered ... and with half a century of photo tech inbetween).
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And here the crappy external camera with the low data rate actually delivered: the #ZodiacalLight pyramid at the beginning of the #SolarEclipse for #ArtemisII - it stayed visible in the live feed for 10+ minutes! Contrary to the NASA commentary this was not the first time such an observation had been made by humans in the vicinity of the Moon - the Apollo 11 crew made it on 19 July 1969: https://www.facebook.com/dan.fischer.393/posts/pfbid02mf6UK3L2j5SgPiQsJk9JVYmo6XvZwDDZ23BYpXwJPDszaSpUYzuinkMyHzh9RF8Rl -> https://skyweek.wordpress.com/2024/07/25/allgemeines-live-blog-ab-dem-25-juli-2024/#Jul26
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Exactly 24 hours from now - at 0:35 UTC on 7 April - the total eclipse for the #ArtemisII crew will begin ... will they see / be able to photograph the fading detached dust tail of #Kreutz comet MAPS imaged here by https://ccor.nrl.navy.mil/ccor_realtime/last_image_MinBckgnd.png at 0:00 UTC on 6 April (image contrast-boosted a lot)? Deep images of the outer corona / #ZodiacalLight / potential dust hovering over the lunar limb might record it as well.
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#ZodiacalLight from Oxfordshire, UK on 18th March 2025. It's the faint cone of light extending up from the trees towards M45, caused by sunlight reflecting off interplanetary dust. 25x25sec taken with a #Canon1100D + 10-18mm wide angled lens. Stacked using Sequator. Jupiter, Uranus & M31 are also in the image.
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#ZodiacalLight from #Oxfordshire, UK on 25th Feb '25. It's the faint triangle of light that extends up from #Venus to the Pleiades, caused by sunlight reflecting off #InterplanetaryDust. It's a challenge from here because of increasing light pollution. 39x25sec + 20 darks, Canon 1100D +10mm lens. #Jupiter, #Uranus, #M31 the #AndromedaGalaxy & #M33 the #TriangulumGalaxy are also visible in the image. Click to expand the image and see the labelled version alongside
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I had about an hour after sunset last night to try to capture the cone of #ZodiacalLight (sunlight illuminating #InterplanetaryDust) before the Moon rose & I got it! Canon 1100D +10mm lens, 19 x 25sec ISO-1600 f/4.5. Stacked using #Sequator Oxfordshire, UK
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SKYSURF-4 - Panchromatic #Hubble Space Telescope All-Sky Surface-brightness Measurement Methods and Results: https://iopscience.iop.org/article/10.3847/1538-3881/acccee -> https://scicomm.xyz/@JohnBarentine@astrodon.social/110397822040150322 (potential evidence for "the anisotropy of the scattering phase function of #InterplanetaryDust" or "an additional #ZodiacalLight component in the inner solar system").
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On Wed 22nd Feb '23 I think I caught a hint of the #ZodiacalLight from North #Oxfordshire. It's the faint cone of light outlined in the 2nd image, caused by sunlight reflecting off interplanetary dust. Canon 1100D with 10-18mm lens. 4 x 25 sec. Click the images to expand
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Fall Bay on Gower with the rare Zodiacal Light going from the horizon to Jupiter and beyond. Zodiacal Light is a faint glow of diffuse sunlight scattered by interplanetary dust and is roughly where the sun set.
#fallbay #gower #swansea #wales #cymru #astro #astrophotography #zodiacallight #jupiter #stars #coast
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SKYSURF - Constraints on #ZodiacalLight and #ExtragalacticBackgroundLight through Panchromatic #HST All-sky Surface-brightness Measurements: https://iopscience.iop.org/article/10.3847/1538-3881/ac82af and https://iopscience.iop.org/article/10.3847/1538-3881/ac8d02 and https://iopscience.iop.org/article/10.3847/2041-8213/ac9cca and https://arxiv.org/abs/2210.08010 -> Hubble Detects Ghostly Glow Surrounding Our Solar System: https://hubblesite.org/contents/news-releases/2022/news-2022-050
