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Contains:  NGC 891
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NGC 891, 





    
        

            Frank Colosimo
NGC 891

NGC 891

Technical card

Resolution: 2130x1708

Dates:Oct. 25, 2011

Frames: 83x476"

Integration: 11.0 hours

Avg. Moon age: 27.96 days

Avg. Moon phase: 2.77%

Astrometry.net job: 2362450

RA center: 35.627 degrees

DEC center: 42.345 degrees

Pixel scale: 0.734 arcsec/pixel

Orientation: 228.849 degrees

Field radius: 0.278 degrees

Locations: Blue Mountain Vista Observatories, New Ringgold, Pennsylvania, United States

Data source: Backyard

Description

NGC 891 in Andromeda is one of the primo edge-on galaxies in the Late Summer/Fall skies. It is big but fairly faint, with a visual magnitude of 10 and an apparent size of 13.5 x 2.8 arc minutes. It is estimated to be 10 million light years away.
It was discovered by William Herschel in Oct 1784. It is famous for the prominent dark lane that runs right down the middle.

Imaging data:
Date: Oct 22,23,25 2011
Location: New Ringgold PA
Optics: Hyperion 12.5 inch at f/8
Mount: Paramount ME
Camera: SBIG STL-11000
Guiding: Internal
Exposure: LRGB: Luminance: unbinned 22x10min; Color binned 2x2: R 16x8.5min, G 23x6 min, B 22x7.5min, for a total of 11 hours

Processing: Image acquisition using CCD Autopilot. Initial processing was done using Maxim DL with subsequent processing with Photoshop.

Comments

Author

franko
Frank Colosimo
License: Attribution-NonCommercial-NoDerivs Creative Commons
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NGC 891, 





    
        

            Frank Colosimo

In these public groups

Cloudy Nights
Northeast Imagers