M3 - Globular Cluster in Canes Venatici
From the author of Welcome to the Universe in 3D
Click here for Hertzsprung-Russell diagram.
21:51 EDT July 03, 2022.
ZWO ASI2400MC-Pro on 10" RC at f/9.
Total Exposure time: 25 minutes (unguided 30-second exposures).
North is to the left.
02:49am EST Feb 6, 2016.
Starlight Express Trius-SX694 binned 2x2 on 10" RCOS at f/9.
R = 7 min, G = 7 min, B = 7 min (unguided 20-second exposures).
Log stretch, Unsharp mask.
Log stretch
LogLog stretch
04:18am EST Mar 12, 2007.
Starlight Express SXV-H9 on 10" RCOS at f/9.
L = 20 min (unguided 15-second subexposures).
Luminance data combined with L, R, G, and B from below.
Log/LogLog stretch, Unsharp mask, Gamma.
23:48pm EDT May 20, 2006.
Starlight Express SXV-H9 on 10" RCOS at f/9.
L = 14.5 min, R = 2.5 min, G = 2.5 min, B = 2.5 min
(unguided 15-second subexposures).
Log stretch, Unsharp mask, Gamma, Star Debloat.
22:17pm EDT May 1, 2005.
Starlight Express SXV-H9 on 10" RCOS at f/9.
L = 3.3 min, R = 0.8 min, G = 0.7 min, B = 0.9 min
(unguided 6-second subexposures).
Log stretch, Unsharp mask, Star Debloat.
04:41am EST Feb 5, 2005.
Starlight Express SXV-H9 on 4" Tak FSQ refractor at f/5.
L = 9 min, R = 3 min, G = 3 min, B = 3 min
(unguided 1-minute subexposures).
Richardson-Lucy deconv, Log stretch, artificial flat.