Focal Pointe Observatory
Astrophotography by Bob Franke

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NGC 2903

Click the image for a wide field display.

 

Instrument

Celestron C11 @  ~f/10.48 (2930 mm fl) 1.26 arcsec / pixel. 

Mount

Paramount ME

Camera

SBIG STL-11000 w/ internal filter wheel, AstroDon Filters

Acquisition Data

2/06/2008 to 2/17/2008  Chino Valley... with CCDAutoPilot3

Exposure

Lum    440 min.  (44 x 10 bin 2x2)
RGB    300 min.  (10 x 10 bin 3x3) each

Software

CCDSoft, Sigma-Clip, Photoshop CS w/ the Fits Liberator plugin, Paint Shop Pro,and Noel Carboni's actions

Comment

North is to the top.

Spiral galaxy NGC 2903 is only about 20 million light-years distant in the constellation Leo. One of the brighter galaxies visible from the northern hemisphere, it is surprisingly missing from Charles Messier's famous catalog of celestial sights. NGC 2903 exhibits an exceptional rate of star formation activity near its center, also bright in radio, infrared, ultraviolet, and x-ray bands. Just a little smaller than our own Milky Way, NGC 2903 is about 80,000 light-years across. 

Source: NASA APOD