
M35 and NGC 2158 - Two Open Clusters in Gemini
From the author of   Welcome to the Universe in 3D
Click here for Hertzsprung-Russell diagram.

21:53 EST Mar 18, 2019 (full Moon)
Starlight Express Trius SX-694 on 10" RCOS at f/9
Four panel mosaic
Each panel: R = G = B = 3 min in 10 second exposures
Autoflatten background, log stretch
22:47 EST Mar 18, 2019 (full Moon)
Starlight Express Trius SX-694 on 10" RCOS at f/9
R = G = B = 5 min in 30 second exposures
Autoflatten background, log stretch, and Unsharp mask

22:07 EST Mar 9, 2005.
Starlight Express SXV-H9 on 4" Tak FSQ refractor at f/5.
R = G = B = 1 min
Richardson-Lucy deconv.

22:04 EST Apr 25, 2023.
ZWO ASI2400MC Pro on 10" RCOS at f/9.
120 seconds using 15 second exposures.
Nonlinear curves.