M92 -- A Globular Cluster in Hercules
From the author of Welcome to the Universe in 3D
Click here for Hertzsprung-Russell diagram.
Click here for a side-by-side comparison with M13.
20:35 EDT Sept 15, 2018.
Starlight Express Trius SX-694 on 10" RC at f/9.
L = 3.25 min, R = 6.75 min, G = 6.0 min, B= 3.75 min
(guided 45-second subexposures).
Richardson-Lucy deconv, Log stretch, Unsharp mask.
21:21 EDT Jul 30, 2014.
Starlight Express SXV-H9 on 10" RC at f/9.
L = 63.3 min, R = 6.0 min, G = 6.0 min, B= 6.0 min
(unguided 20-second subexposures).
Richardson-Lucy deconv, Log stretch, Unsharp mask.
Click here for Hertzsprung-Russell diagram.
22:22 EDT Aug 10, 2005.
Starlight Express SXV-H9 on 10" RC at f/9.
L = 10.5 min, R = 3.5 min, G = 5 min, B= 5 min
(unguided 30-second subexposures).
Log stretch, Unsharp mask.