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Robert Chozick | all galleries >> Galleries >> Deep Sky Images > M31 Andromeda Galaxy (HaLRGB)
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October 4-6, 2021

M31 Andromeda Galaxy (HaLRGB)

Paducah Skies Observatory

The Andromeda Galaxy is a spiral galaxy approximately 2.5 million light-years away in the constellation Andromeda. It is also known as Messier 31, M31, or NGC 224, and is often referred to as the Great Andromeda Nebula in older texts. Andromeda is the nearest spiral galaxy to the Milky Way, but not the closest galaxy overall. As it is visible from Earth as a faint smudge on a moonless night, it is one of the farthest objects visible to the naked eye, and can be seen even from urban areas with binoculars. It gets its name from the area of the sky in which it appears, the Andromeda constellation, which was named after the mythological princess Andromeda. Andromeda is the largest galaxy of the Local Group, which consists of the Andromeda Galaxy, the Milky Way Galaxy, the Triangulum Galaxy, and about 30 other smaller galaxies.

Paducah Skies Observatory is a private observatory SW of Paducah, TX. It sits on 45 acres of native Texas grasslands and mesquite trees. The skies are 21.99 on the light pollution scale (almost Bortle 1).

Takahashi FSQ-106N Quadruplet Fluorite Refractor
ZWO ASI2600MM Pro CMOS camera
Baader Vario Finder mounted as Guidescope
ZWO ASI178MM Guide Camara
Astro Physics 900 GTO mount

Ha 5 min 24 exp (150 gain/30 offset)
Luminance 3 min 110 exp (100 gain/20 offset)
R/G/B 3.5 min 15 exp each (100 gain/20 offset)
ASI2600MC OSC 30 sec 20 exp (for core)

Guided with PHD 2
Captured with The SkyX
Pre-processed and Stacked in Nebulosity 4
Processed in PixInsight and Photoshop full exif


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