Messier 39 is an open cluster in constellation Cygnus. It is also known as NGC 7092. The cluster was discovered by Guillaume Le Gentil, a French astronomer, in 1749. It took fifteen years until Charles Messier added M39 to his catalogue.
To me, beside the actual open cluster, I like this picture because there are so many additional stars in the background.
|Location||Böblingen / Germany|
|Object||Open Cluster M39|
|Guiding||yes, DMK31AU03.AS via OAG|
|Telescope||8" GSO Newtonian|
|Luminance||5x 400s, bin: 1x1|
|Red||5x 100s, bin: 2x2|
|Green||5x 100s, bin: 2x2|
|Blue||5x 100s, bin: 2x2|
The image is also available in full resolution.
Clear skies!Last updated: June 20, 2022 at 10:16 am