NGC 2158 (Melotte 40, OCL 468) open star cluster in Gemini. Taken on Jan 31, 2013 and Jan 18, 2014.
Imaged with CCD Lab’s Q285M camera and a Celestron EdgeHD 9.25 at f10, on a Losmandy G11/Gemini
mount. The RGB subframes were 10 minutes binned 1x1, resulting in the following total exposures
(R):(G):(B) (min) = (110):(110):(110). Captured with Nebulosity, calibrated, sigma combined in Iris
with other processing using PixInsight LE and Photoshop CS. North is up.