| "The sky is the ultimate art gallery just above us." - Ralph Waldo Emerson (1803 - 82) |
Astrophotography by Jason Jennings |
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| Nebulae :: Cederblad 90 (Gum 3) | |
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| Resolutions Available: 800x600 : 1600x1200 | |
| Object | Cederblad 90 (Gum 3) |
| Comment |
Located along the wing tip of the Seagull Nebula (IC2177) is Cederblad 90 (aka Gum 3, Ced90). The nebula consists of both emission and reflection properties. The vibrant hydrogen alpha atoms mix with dust particles reflected by the bright star SAO 152349 produce a pink hue with delicate traces of blue nebulosity. This image is a [Ha+L]+[Ha+R]GB composite. Data acquired from three different instruments provided by Lightbuckets. RGB=14.5", Lum+Ha=20" & 24" RC's |
| Optics |
RCOS 14.5" F/9 (3315mm FL) RCOS 20" F/8.1 (4115mm FL) RCOS 24" F/8 (4876 mm FL) |
| Camera |
14.5" RCOS camera - SBIG STL-11000M - 2x2 bin (image scale 1.12 arcsec/pix) 20" RCOS camera - SBIG STL-11000M - 1x1 bin (image scale .45 arcsec/pix) 24" RCOS camera - Apogee Alta U42 - 1x1 bin (image scale .57 arcsec/pix) |
| Mount |
14.5" RCOS mount - Paramount ME 20" RCOS mount - Paramount ME 24" RCOS mount - RCOS Professional Series Equatorial Fork |
| Exposure | Total exposure time: 8.7 hours (Ha,120min,L:165min,RGB:80min respectively) |
| Date |
Data acquired over multiple nights 01/12/2008 04/12/2008 11/12/2008 28/12/2008 |