Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Andromeda Galaxy  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 206  ·  NGC 221  ·  NGC 224
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M31 The Andromeda Galaxy (2021 Edition) in LHaRGB, 



    
        

            Eshan Toorabally
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M31 The Andromeda Galaxy (2021 Edition) in LHaRGB

Getting plate-solving status, please wait...
M31 The Andromeda Galaxy (2021 Edition) in LHaRGB, 



    
        

            Eshan Toorabally
Powered byPixInsight

M31 The Andromeda Galaxy (2021 Edition) in LHaRGB

Imaging telescopes or lenses: William Optics ZENITHSTAR 73 APO

Imaging cameras: ZWO ASI 1600 MM Pro

Mounts: Rainbow Astro RST135

Guiding telescopes or lenses: ZWO Off Axis Guider

Guiding cameras: ZWO ASI 290MM

Focal reducers: William Optics Flat 73

Software: Stefan Berg (aka Isbeorn) NINA - Nighttime Imaging ‘N’ Astronomy  ·  Starkeeper.it Voyager  ·  Open PHD Guiding PHD2 Guiding 2.6.9  ·  Astro Pixel Processor  ·  PixInsight

Filters: Astrodon Ha 5nm 36mm  ·  Astrodon G Gen.2 E-series 36mm  ·  Astrodon B Gen.2 E-series 36mm  ·  Astrodon L Gen.2 E-series 36mm

Accessory: Pegasus Astro Falcon Rotator  ·  ZWO EFW 7 x 36mm  ·  Pegasus Astro FocusCube v2  ·  Minix N42-C


Dates:Sept. 6, 2021Sept. 7, 2021

Frames:
Astrodon B Gen.2 E-series 36mm: 80x60" (1h 20') (gain: 76.00) -15C bin 1x1
Astrodon G Gen.2 E-series 36mm: 96x60" (1h 36') (gain: 76.00) -15C bin 1x1
Astrodon Ha 5nm 36mm: 24x300" (2h) (gain: 200.00) -15C bin 1x1
Astrodon L Gen.2 E-series 36mm: 210x60" (3h 30') (gain: 0.00) -15C bin 1x1
Astrodon R Gen.2 E-series 36mm: 100x60" (1h 40') (gain: 139.00) -15C bin 1x1

Integration: 10h 6'

Darks: 25

Flats: 25

Flat darks: 25

Avg. Moon age: 14.72 days

Avg. Moon phase: 0.31%

Bortle Dark-Sky Scale: 7.00

Temperature: 16.40


RA center: 00h42m39s.800

DEC center: +41°1638.61

Pixel scale: 0.886 arcsec/pixel

Orientation: 88.297 degrees

Field radius: 1.364 degrees

More info:Open 


Resolution: 8902x6605

Locations: Home, Sutton, Greater London, United Kingdom

Data source: Backyard

Description

Another year, another M31! I got a pretty good result last year in pretty bad sky conditions. This year, I was back in my Bortle 7 backyard (Bortle 8 last year) and the moon was almost non-existent this time around...in theory superior conditions.

Something new I tried for this image was to drop the gain values for my broadband filters from their usual values and increase sub length to 60 seconds instead of the usual 30 seconds...idea was to increase dynamic range and also lower the number of subs on my hard drive!

Intriguingly, I now have decent data on M31 over the last three years...it might be worth combining them all for a definitive image...hmm...

...thanks for looking!

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  • M31 The Andromeda Galaxy (2021 Edition) in LHaRGB, 



    
        

            Eshan Toorabally
    Original
  • Final
    M31 The Andromeda Galaxy (2021 Edition) in LHaRGB, 



    
        

            Eshan Toorabally
    B

B

Description: With saturation boost

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M31 The Andromeda Galaxy (2021 Edition) in LHaRGB, 



    
        

            Eshan Toorabally