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Contains:  M 31, Great Nebula in Andromeda, NGC 224
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Messier 31, 


            Kees Scherer
Messier 31

Messier 31

Technical card

Imaging telescope or lens:Skywatcher 100 Esprit APO F5.5

Imaging camera:QHYCCD QHY16200A Mono

Mount:10Micron GM2000HPS II

Software:Astro Pixel ProcessorPixInsight 1.8


Accessory:ScopeDome 2M

Resolution: 4819x1633

Dates:Aug. 16, 2018

B: 74x300" (gain: 1.00) -20C bin 1x1
G: 67x300" (gain: 1.00) -20C bin 1x1
R: 68x300" (gain: 1.00) -20C bin 1x1

Integration: 17.4 hours

Darks: ~60

Flats: ~25

Bias: ~256

Avg. Moon age: 5.60 days

Avg. Moon phase: 31.49% job: 2206202

RA center: 10.368 degrees

DEC center: 41.000 degrees

Pixel scale: 1.113 arcsec/pixel

Orientation: 235.872 degrees

Field radius: 0.786 degrees

Locations: Knight Observatory,Quinta Castelo Novo, Serra de Tomar, Portugal

Data source: Backyard


Imaged on 10,11,12,14,15 & 16 August, 2018. A 2x drizzle was used in Astropixelprocessor to maximize detail. The image was cropped to produce this core focused result.



Kees Scherer
License: Attribution Creative Commons

Sky plot

Sky plot


Messier 31, 


            Kees Scherer

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