RA: 09h 32m 09s Dec: 21° 30' 03, Mag: 9.6 , Size: 12.6'x 5.5', Distance: ~30 million ly
RA: 09h 32m 09s Dec: 21° 30' 03, Mag: 9.6 , Size: 12.6'x 5.5', Distance: ~30 million ly
NGC 2903 is a bright barred spiral galaxy in the constellation Leo with a distance of approximately 30 million light years. Discovered by William Herschel in 1784 this galaxy was cataloged as two separate objects (H I 56 & H I 57). Today's designation is NGC 2903 and NGC 2905. NGC 2905 is a stellar forming region located within the central bar.
| Location & Date | Dragon Rock Observatory (DRO), Sacramento Mountains Astronomy Park, New Mexico - Jan. 2012. Image processed April 2014 |
| Telescope |
A&M 360mm R/C F/8, Paramount ME, Prime Focus,
Image scale 0.64 arcsec/pixel |
| Camera |
FLI IMG-6303 w/CFW7 Custom Scientific Ha RGB Filters CCD temp -35°C |
| Exposure Times | (Ha) 8x30m, (L) 28x15m, (R)27x15m, (G) 16x15m, (B) 19x15m Bin 1x1 |
| Other Information |
Image planning - CCD Navigator Image acquisition/focus/guiding/dither - CCD Commander CCDSoft/TheSky6 |
| Image Processing |
* Images Plus- Calibration, Normalize, Alignment, Sigma Avg Combine, RGB combine, Deconvolution, DDP * Adobe CS4 - Ha+R,GB combine, Levels, Curves, Sharpening, Noise reduction, JPEG conversion * CCDStack - Deconvolution |
