M31 Andromeda (Josh Jones)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Andromeda Galaxy · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224

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M31 Andromeda

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M31 Andromeda

This is our nearest similar galaxy Andromeda, was able to capture over 4 consecutive nights, July 26th-29th in RGB. I used Ha to blend in the Hydrogen regions that make for the bright purple nebula regions. Still amazes me how fast the light can be captured with a RASA at F/2. Taken with a small ASI 1600mm and Baader Ha F/2 ultra highspeed 3.5nm filter. Baader F/2 RGB filters handled the broader color spectrum as well as the ASG Photon Cage for precise tilt and alignment of the optics.

Date:  July 26-29, 2022
Ha: 88 x 180 seconds
Red: 281 x 30 seconds
Green: 577 x 15 seconds
Blue: 284 x 30 seconds

Calibration Bias: 20
Calibration Dark: 20
Calibration Flats: 30 for each filter

Gain:  139 on Ha and 75 for RGB
Processing Software: Stacked in Astro Pixel Processor, captured using NINA, Processed in PixInsight

Telescope: Celestron RASA 11 (620mm focal @ f/2.2)
Filters:  Baader Ultra-Highspeed F/2 3.5nm & 4nm Filters.
Main Camera: ZWO ASI 1600mm-pro Monochrome
Tilt & BackFocus Adjuster:ASG Photon Cage
Mount: Skywatcher EQ6r-Pro
Guide Scope: William Optics 50mm Uniguide
Guide Camera: ZWO ASI 290mm-mini

Cloudy Nights
AAA : Astronomes et Astrographes Amateurs

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