Ethan Chappel

[Ethan Chappel @ChappelAstro]

AstroBin: https://t.co/xtJPbhV3Ig
Bluesky: https://t.co/g9HzdYVSpe
Instagram: https://t.co/7B9d1uENFm
Facebook: https://t.co/tmuiMADPoW
Website: https://t.co/RKqBBiwNx6

[Ethan Chappel @ChappelAstro]

2026-05-13 11:18, 11:32 UTC

Hardware
Sky-Watcher FlexTube 400P, Player One Uranus-C, Optolong UV/IR-Cut, Baader 685nm+ IR-pass, (2x) APM Comacorrecting 1.25" ED Barlow 2.7x, ZWO ADC, Phoenix Wheel 8 x 1.25"

Software
FireCapture, AutoStakkert!, AstroSurface, WinJUPOS, GIMP

[Ethan Chappel @ChappelAstro]

Saturn in near-infrared on May 13th.

#Astronomy #Astrophotography

[Ethan Chappel @ChappelAstro]

Another image in visible light at dawn.

[Ethan Chappel @ChappelAstro]

2026-03-30 2:48 UTC

Hardware
Sky-Watcher FlexTube 400P SynScan, Player One Uranus-M, Chroma RGB, (2x) APM Comacorrecting 1.25" ED Barlow 2.7x, ZWO ADC, Phoenix Wheel 8 x 1.25"

Software
FireCapture, AutoStakkert!, AstroSurface, WinJUPOS, GNU Image Manipulation Program

[Ethan Chappel @ChappelAstro]

#Jupiter with the Great Red Spot on March 30th, 2026.

#Astronomy #Astrophotography

[Ethan Chappel @ChappelAstro]

The 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.

[Ethan Chappel @ChappelAstro]

@OASES_miyako Unfortunately a false positive. Image 1.5 hours later from someone who uploaded to the PVOL database. Optical aberrations were elongating Io's shadow.

[Ethan Chappel @ChappelAstro]

@Christiaan__H @AJamesMcCarthy There's another Titan transit in 16 days.

[Ethan Chappel @ChappelAstro]

2024-11-17 8:51 UTC
Cibolo, Texas, USA (29° N, 98° W)

Hardware
Sky-Watcher FlexTube 400P, Player One Uranus-C⁠, Optolong UV/IR Cut 1.25", APM Comacorrecting 1.25" ED Barlow 2.7x, ZWO ADC

Software
FireCapture, AutoStakkert!, AstroSurface, WinJUPOS, Affinity Photo

[Ethan Chappel @ChappelAstro]

Mars on November 17th, 2024.

#Astronomy #Astrophotography

[Ethan Chappel @ChappelAstro]

2025-09-03 11:26 UTC
Cibolo, Texas, USA (29° N, 98° W)

Hardware
Sky-Watcher FlexTube 400P SynScan, Player One Uranus-M⁠, (2x) APM Comacorrecting 1.25" ED Barlow 2.7x, Chroma RGB, ZWO ADC

Software
FireCapture, AutoStakkert!, AstroSurface, WinJUPOS, Affinity Photo

[Ethan Chappel @ChappelAstro]

Jupiter on September 3rd, 2025.

#Astrophotography

[Ethan Chappel @ChappelAstro]

2025-08-29 10:14 UTC
Cibolo, Texas, USA (29° N, 98° W)

Hardware
Sky-Watcher FlexTube 400P SynScan, Player One Uranus-C⁠, (2x) APM Comacorrecting 1.25" ED Barlow 2.7x, Optolong UV/IR-Cut, ZWO ADC

Software
FireCapture, AutoStakkert!, AstroSurface, WinJUPOS, Affinity Photo

[Ethan Chappel @ChappelAstro]

Saturn on August 29th, 2025.

#Astrophotography

[Ethan Chappel @ChappelAstro]

Hardware
Sky-Watcher Esprit 100ED, EQ6-R Pro, QHY268M-PH, CFW3M-US, OAG-M Pro, QHY5III585M, Astrodon E-Series LRGB 36mm, Pegasus Astro Ultimate Powerbox v2, Motor Focus Kit v2, Intel NUC12WSKi3

Software
N.I.N.A., PHD2 Guiding, PixInsight, GraXpert, Affinity Photo

[Ethan Chappel @ChappelAstro]

Horsehead & Flame Nebulas with Alnitak, the bright star on the left of Orion's belt.

#Astrophotography

[Ethan Chappel @ChappelAstro]

Lum: 103x90s (2.6h)
Red: 20x180s (1.0h)
Green: 16x180s (0.8h)
Blue: 15x180s (0.8h)
Total time: 5.1h

2025-02-02, 2025-03-01, 2025-03-29
South Llano River State Park, Junction, Texas, USA (30° N, 99° W)

[Ethan Chappel @ChappelAstro]

@astrofalls What happened to the Moon's orientation between this and the previous image?

[Ethan Chappel @ChappelAstro]

2025-08-29 11:35 UTC
Cibolo, Texas, USA (29° N, 98° W)

Hardware
Sky-Watcher FlexTube 400P SynScan, Player One Uranus-M⁠, (2x) APM Comacorrecting 1.25" ED Barlow 2.7x, Chroma RGB, ZWO ADC

Software
FireCapture, AutoStakkert!, AstroSurface, WinJUPOS, Affinity Photo

[Ethan Chappel @ChappelAstro]

Jupiter with the Great Red Spot on August 29th, 2025.

#Astrophotography