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


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

Technical card

Dates:Feb. 23, 2020

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 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


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.



License: None (All rights reserved)

Sky plot

Sky plot


NGC 2903 Barred Spiral Galaxy in Leo,