Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Great Nebula in Andromeda  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224
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M31 HaLRGB, 



    
        

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M31 HaLRGB
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M31 HaLRGB

Getting plate-solving status, please wait...
M31 HaLRGB, 



    
        

            hy
M31 HaLRGB
Powered byPixInsight

M31 HaLRGB

Technical card

Imaging telescopes or lenses: Williams Optics Zenithstar 105 ED Triplet APO

Imaging cameras: ZWO ASI1600mm Pro Cooled

Mounts: Orion Atlas AZ/EQ Pro

Guiding telescopes or lenses: 9x50 Finder Scope

Guiding cameras: QHY5L-II-M

Software: KStars Ekos/INDI, Stellarmate OS  ·  Adobe Lighroom CC Classic  ·  PixInsight 1.8

Filters: Astronomik Ha 31mm 6nm  ·  Astronomik CLS 31mm  ·  Astronomik Blue 31mm  ·  Astronomik Green 31mm  ·  Astronomik Red 31mm


Dates:Dec. 30, 2018Jan. 1, 2019Jan. 2, 2019

Frames:
Astronomik Blue 31mm: 43x120" (gain: 139.00) -25C bin 1x1
Astronomik CLS 31mm: 84x120" (gain: 139.00) -25C bin 1x1
Astronomik Green 31mm: 56x120" (gain: 139.00) -25C bin 1x1
Astronomik Ha 31mm 6nm: 58x120" (gain: 139.00) -25C bin 1x1
Astronomik Red 31mm: 56x120" (gain: 139.00) -25C bin 1x1

Integration: 9.9 hours

Darks: ~25

Flats: ~25

Bias: ~100

Avg. Moon age: 24.91 days

Avg. Moon phase: 23.14%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 2660948

RA center: 0h 42' 52"

DEC center: +41° 13' 12"

Pixel scale: 0.537 arcsec/pixel

Orientation: 274.349 degrees

Field radius: 0.816 degrees


Resolution: 8779x6527

Data source: Backyard

Description

My first HaLRGB. Really one of my first RGBs too. Funny story--I shot this end of December, and wasn't happy at all with the result. In February, discovered that my color filters were in the wrong position (e.g. Red channal was actually Green, Blue was Red, Green was Blue). Reprocessed, and not surprisingly am much happier with the result ;) Figuring out how to balance the Ha and Red channel s is still a challenge. Also, shot this long before my 0.8 reducer arrived.

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    Original
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    B

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M31 HaLRGB, 



    
        

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