Ethan Chappel @chappelastro.com · 29/09/2026Saturn with Mimas and Dione on August 3rd, 2026. #Astronomy #Astrophotography 1266
Ethan Chappel @chappelastro.com · 27/06/2026Movement of Jupiter's cloud bands over nearly 2 hours on March 30th. The Equatorial Zone travels to the east at 70 kilometers per hour, or 160 miles per hour, at the equator to 430 kph/270 mph at the edges. #Astronomy #Astrophotography 1153
Ethan Chappel @chappelastro.com · 02/06/2026Tros crater is visible on Ganymede as a bright spot on the left. 130
Ethan Chappel @chappelastro.com · 02/06/2026Jupiter with Io and Ganymede on March 30th, 2026. #Astronomy #Astrophotography 1200
Ethan Chappel @chappelastro.com · 23/05/2026Saturn in near-infrared on May 13th. #Astronomy #Astrophotography 1304
Ethan Chappel @chappelastro.com · 16/05/2026The Great Red Spot measures about 13,700 km wide in this image, slightly more than Earth's diameter of 12,750 km. I used the "Hello, World" image from Artemis II to make a comparison between our home and the largest planet in the Solar System. 151
Ethan Chappel @chappelastro.com · 16/05/2026Jupiter with the Great Red Spot on March 30th, 2026. #Astronomy #Astrophotography 13911
Ethan Chappel @chappelastro.com · 12/05/2026Saturn is back! After passing behind the Sun in late-March, Saturn is rising out of the morning twilight. The southern hemisphere is tilted more towards us than last year as it moved away from last year's equinox and towards the next solstice in 2032. #Astronomy #Astrophotography 2268
Ethan Chappel @chappelastro.com · 08/05/2026Jupiter with the Great Red Spot on March 25th, 2026. #Astronomy #Astrophotography 1324
Ethan Chappel @chappelastro.com · 05/05/2026Jupiter with an Io shadow transit on March 23rd, 2026. Notice how the shadow appears elongated as it hits the edge of the planet. #Astronomy #Astrophotography 1283
Ethan Chappel @chappelastro.com · 01/05/2026Jupiter with the Great Red Spot through good seeing conditions despite gusty winds. #Astronomy #Astrophotography 1241
Ethan Chappel @chappelastro.com · 29/04/2026Jupiter with Callisto on March 1st. Close inspection of Callisto reveals hints of its old and battered surface. #Astronomy #Astrophotography 1355
Ethan Chappel @chappelastro.com · 11/04/2026Jupiter through good seeing conditions on March 3rd, 2026. #Astronomy #Astrophotography 1395
Ethan Chappel @chappelastro.com · 10/04/2026Clouds cleared out enough to record them just before dawn started, a relief since it looked like I would be clouded out for the entire mission. 100
Ethan Chappel @chappelastro.com · 10/04/2026Artemis II mission returning to Earth from the Moon on April 8th, as dawn was starting here. Integrity was 338,000 km away at the start, and nearly 1,000 km closer at the end 23 minutes later #Artemis #ArtemisII #NASA #Astronomy #Astrophotography 1224
Ethan Chappel @chappelastro.com · 03/04/2026Jupiter with the Great Red Spot near the limb on February 17th, 2026. #Astronomy #Astrophotography 1315
Ethan Chappel @chappelastro.com · 20/11/2025Saturn with Tethys and Enceladus on October 10th, 2025. #Astronomy #Astrophotography 2429
Ethan Chappel @chappelastro.com · 19/11/2025Jupiter on October 1st, 2025. #Astronomy #Astrophotography 28411
Ethan Chappel @chappelastro.com · 15/11/2025Saturn with Tethys, Dione, and Rhea on September 2nd, 2025. 12 years to the night after my first shot of the ringed planet with an EdgeHD 8 and original USB 2.0 ASI120MM. #Astronomy #Astrophotography 2476
Ethan Chappel @chappelastro.com · 17/10/20252025-10-13 10:19-10:27, 11:54, 12:35 UTC Cibolo, Texas, USA Sky-Watcher FlexTube 400P SynScan, Player One Uranus-C & M, APM Comacorrecting 1.25" ED Barlow 2.7x, Optolong UV/IR-Cut, Baader 685nm IR-Pass, ZWO ADC FireCapture, AutoStakkert!, AstroSurface, PixInsight, WinJUPOS, Affinity Photo 161
Ethan Chappel @chappelastro.com · 17/10/2025Jupiter occulted the star a couple hours later as the Sun was rising. Look closely and you can see it become more twinkly in the moments before it disappears, a glimpse of Jovian seeing conditions from my backyard on Earth. 171
Ethan Chappel @chappelastro.com · 17/10/2025Jupiter was in the line of sight between us and the magnitude 7.9 star HD 61660 on October 13th, appearing as an interloper among the Galilean Moons. It's an orange star 25x more luminous than the Sun and 660 light years away. Europa had a very close pass from home. #Astronomy #Astrophotography 27721
Ethan Chappel @chappelastro.com · 27/09/2025Titan casting its shadow on Saturn on August 3rd, 2025. Tethys is also transiting just above the rings, but they were blocking the view its shadow. #Astronomy #Astrophotography 25110
Ethan Chappel @chappelastro.com · 22/09/2025Neptune and Triton on September 19th, 2025. Look carefully and you'll notice the subtle gradient from brighter in the south to darker in the north. #Astronomy #Astrophotography 6439
Ethan Chappel @chappelastro.com · 14/09/2025Jupiter on September 10th, 2025. #Astronomy #Astrophotography 418821
Ethan Chappel @chappelastro.com · 12/09/2025Uranus with several of its moons on August 30th, 2025. #Astronomy #Astrophotography 36010
Ethan Chappel @chappelastro.com · 10/09/2025Mars on November 17th, 2024. #Astronomy #Astrophotography 11268
Ethan Chappel @chappelastro.com · 05/09/2025Crops on various regions of interest around the image. 100
Ethan Chappel @chappelastro.com · 05/09/2025Horsehead & Flame Nebulas with Alnitak, the bright star on the left of Orion's belt. #Astrophotography 314624
Ethan Chappel @chappelastro.com · 03/09/2025Jupiter with the Great Red Spot on August 29th, 2025. #Astrophotography 1497
Ethan Chappel @chappelastro.com · 15/08/2025Saturn on August 9th, 2025 with ring spokes to the left. #Astrophotography 2244
Ethan Chappel @chappelastro.com · 13/08/2025Jupiter with the Great Red Spot yesterday morning in visible light and near-infrared. #Astrophotography 28812
Ethan Chappel @chappelastro.com · 06/08/2025Jupiter this morning. Finally becoming viable to catch a decent image of it as it rises away from the morning twilight. #Astrophotography 2908
Ethan Chappel @chappelastro.com · 28/06/2025Venus on June 21st, 2025 in bi-color IR-UV to emphasize the cloud features in the atmosphere. #Astrophotography 15811
Ethan Chappel @chappelastro.com · 26/06/2025UV gives a drastically different view of the ringed planet. 120
Ethan Chappel @chappelastro.com · 03/06/2025A distant view of Mars on June 2nd, 2025, over 2.5x farther than it was at its closest approach in January. Clouds can be seen over Olympus Mons just right of center and the three Tharsis volcanoes to the lower-right of it. #Astrophotography 3451
Ethan Chappel @chappelastro.com · 02/06/2025Venus on June 1st, 2025 in false-color IR-UV to enhance features in the cloudtops. #Astrophotography 1445
Ethan Chappel @chappelastro.com · 01/06/2025Saturn on June 1st, 2025. The rings are continuing to brighten as they open towards the Sun. #Astrophotography 210218
Ethan Chappel @chappelastro.com · 14/05/2025Saturn is back in the morning sky but something looks different. Just a few days after equinox, it's autumn in the north & spring in the south. The dark line cutting across the planet are the rings, not their shadow. They are very dark when sunlight hits them at a shallow angle. #Astrophotography 1240
Ethan Chappel @chappelastro.com · 09/05/2025Transit of #exoplanet WD 1856+534 b across its white dwarf host star. An unusual system where we see a small white dwarf star partially occulted by a giant planet every 1.4 days, resulting in a much deeper decrease in brightness than most exoplanet transits. #Astrophotography 2569
Ethan Chappel @chappelastro.com · 11/04/2025#Jupiter with the Great Red Spot on September 25th, 2024. #Astrophotography 725423
Ethan Chappel @chappelastro.com · 10/04/2025#Saturn and Rhea from July last year. #Astrophotography 2423
Ethan Chappel @chappelastro.com · 07/04/2025#Mars on December 20th, 2024 with some clouds over the north polar cap. #Astrophotography 3915
Ethan Chappel @chappelastro.com · 17/03/20252025-01-14 1:52, 2:51 UTC Cibolo, Texas, USA (29° N, 98° W) Hardware Sky-Watcher FlexTube 400P SynScan, Player One Uranus-C, Optolong UV/IR Cut 1.25", APM Comacorrecting 1.25" ED Barlow 2.7x, ZWO ADC Software FireCapture, AutoStakkert!, AstroSurface, Image Composite Editor, Affinity Photo 120
