Astrophotography – Open cluster Messier 39

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.

LocationBöblingen / Germany
ObjectOpen Cluster M39
Guidingyes, DMK31AU03.AS via OAG
Telescope8" GSO Newtonian
Barlow lensnone
Luminance5x 400s, bin: 1x1
Red5x 100s, bin: 2x2
Green5x 100s, bin: 2x2
Blue5x 100s, bin: 2x2
Total exposure~58m

The image is also available in full resolution.

Clear skies!

Last updated: June 20, 2022 at 10:16 am

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