Waid Observatory

Object: NGC 6939
Date: Jun. 15-16, 2019   -   Location: Dark Sky Observatory, Davis Mountains, TX
Telescope: 10in. RC   -   Mount: Paramount MX   -  Camera: Apogee F8300
L = 60 min. - R/G = 45 min. each - B = 50 min. (All Binned 2x2)
Click on the image below to view at higher resolution.

  NGC 6939


NGC 6939 1

NGC 6939 is an open cluster in the constellation Cepheus approximately 4,000 light-years distant.  This colorful cluster is relatively old.  A photometric study utilizing member stars have estimated the age of the cluster to be between 1 and 1.3 billion years.  The cluster is visible under dark skies with the aid of binoculars and can be resolved using small amateur telescopes.


Copyright Donald P. Waid