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Contains:  M 31, Great Nebula in Andromeda, NGC 224, M 32, NGC 221, M 110, NGC 205, The star νAnd, The star 32And
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Andromeda Galaxy - M31, 





    
        

            Rudy Pohl
Andromeda Galaxy - M31

Technical card

Resolution: 2048x1348

Dates:Oct. 5, 2017

Frames: 112x60"

Integration: 1.9 hours

Avg. Moon age: 14.47 days

Avg. Moon phase: 99.90%

Astrometry.net job: 2174225

RA center: 10.868 degrees

DEC center: 41.184 degrees

Pixel scale: 6.979 arcsec/pixel

Orientation: 266.698 degrees

Field radius: 2.377 degrees

Data source: Traveller

Description

Camera: Nikon D5500 unmodified
Lens: Nikon 300/f4 ED
Aperture: f5.2 using stepping rings as aperture mask
ISO: 1600
Exposure: 112 x 1-minute = 1.86 hours total integration time
Tracker: Sky Watcher Star Adventurer mini-EQ mount
Sky conditions: Dark sky, poor seeing, Ottawa light pollution
Processing tools:
rnc-color-stretch - developed by Roger Clark
Photoshop CS5,
Gradient Exterminator,
HLVG (Hasta La Vista, Green!)

Comments

Author

Rudy_Pohl
Rudy Pohl
License: None (All rights reserved)
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Andromeda Galaxy - M31, 





    
        

            Rudy Pohl