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Contains:  M 37, NGC 2099
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M 37, 





    
        

            K. Schneider
M 37

M 37

Technical card

Resolution: 3272x2360

Dates:Dec. 29, 2016

Frames: 25x100" ISO800

Integration: 0.7 hours

Darks: ~10

Flats: ~15

Bias: ~15

Avg. Moon age: 0.18 days

Avg. Moon phase: 0.04%

Bortle Dark-Sky Scale: 7.00

Temperature: -4.00

Astrometry.net job: 1389893

RA center: 5h 51' 57"

DEC center: +32° 34' 15"

Pixel scale: 2.175 arcsec/pixel

Orientation: 174.293 degrees

Field radius: 1.219

Locations: Garden, Zwingenberg, Germany

Description

"IC 439" is indicated near the lower left corner. Please do not waste your time trying to look for any object there:

Initial observer Max Wolf described it as "most extremely large, extremely extended", but there is nothing resembling the description anywhere near the respecting position. Obviously, this was a defect on Wolf's plate, and it is in fact a nonexistent object.

Comments

Author

MooWaters
K. Schneider
License: None (All rights reserved)
1090
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M 37, 





    
        

            K. Schneider