Astrophotographs
Diffuse Nebula
Galaxies
Planetary Nebula
M-1 Crab Nebula |
M-27 Dumbell Nebula |
Eskimo nebula (NGC-2392) |
Helix nebula (NGC-7293) |
Helix Nebula (NGC 7293) 2 image sizes |
M-57 Ring Nebula |
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Open and Globular Clusters
NGC5139 - Omega Centauri |
M4 |
Double Cluster in Perseus |
M13 |
Milky Way Montage
Moon - Lunar Eclipse
Comets
C/2007 N3 (Lulin) 04 February 2009 |
Comet C/2001 Q4 (Neat) 2004 |
Videos
Winter Solstice Lunar Eclipse 2010 William Castleman Vimeo
Galactic Center of Milky Way Rises over Texas Star Party William CastlemanVimeo