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Contains:  NGC 2903, NGC 2905, NGC2903, NGC2905
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NGC 2903 Barred Spiral Galaxy in Leo, 



    
        

            JohnAdastra
NGC 2903 Barred Spiral Galaxy in Leo
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NGC 2903 Barred Spiral Galaxy in Leo

Technical card


Dates:Feb. 23, 2020

Frames:
Astronomik Blue 1.25": 105x60" (gain: 99.00) -20C bin 2x2
Astronomik Green 1.25": 120x60" (gain: 99.00) -20C bin 2x2
Optolong L-Pro 1.25": 155x60" (gain: 99.00) -20C bin 2x2
Astronomik Red 1.25": 85x60" (gain: 99.00) -20C bin 2x2

Integration: 7.8 hours

Darks: ~60

Flats: ~60

Flat darks: ~60

Bias: ~100

Avg. Moon age: 29.41 days

Avg. Moon phase: 0.02%

Bortle Dark-Sky Scale: 7.00

Mean FWHM: 1.80


Astrometry.net job: 3299913

RA center: 9h 32' 9"

DEC center: +21° 29' 59"

Pixel scale: 0.949 arcsec/pixel

Orientation: 119.197 degrees

Field radius: 0.301 degrees


Resolution: 1862x1328

Locations: SkyShed roll-off, Upper Providence, PA, United States

Data source: Backyard

Description

NGC 2903 - a barred spiral galaxy in the constellation Leo

With the start of galaxy season, this easily found spiral is just west of the "question mark" asterism in Leo and not far from Algenubi. Surprisingly, this object does not appear to have received any notable nicknames, according to my searches.

The central bar in the galaxy core was quite distinct, and quite by chance wound up being horizontal on my camera sensor.

Comments

Author

JohnAdastra
JohnAdastra
License: None (All rights reserved)
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NGC 2903 Barred Spiral Galaxy in Leo, 



    
        

            JohnAdastra