Globular Cluster NGC 6934 in Delphinus

NGC 6934

NGC 6934
Sketch and Details by Frank McCabe

Globular cluster NGC 6934 is an 8.9 magnitude ancient sphere of thousands of stars in the constellation of Delphinus. It is situated in a nice star rich region of the constellation at R.A. 20 hrs. 34 min. and Dec. +7° 24’. This globular can easily be located by star hopping. Begin at Beta Delphini and move through and past Eta Del. to Epsilon Del. Now extend this arc distance an equivalent length beyond Epsilon Del. And you will arrive at NGC 6934. To my eyes the diameter appeared to be about 5 arcmin. At 52,000 light years most of the brightest stars of this globular fall between 14th and 15th magnitude. I was able to detect granularity at the core but a scope larger than 10 inches would be best for resolving stars in this cluster. This globular is worth a look.

9”x11” white sketching paper; 6B, 4B, HB graphite pencils and a blending stump;
Scanned and inverted; brightness of some stars adjusted with MS Paint.
Scope: 10” f/5.7 Dobsonian: 24 mm widefield eyepiece 60x and 12 mm eyepiece 121x
Date and Time: 7-23-2008, 7:00-7:30 UT
Seeing: Pickering 7/10
Transparency: Average 3/5
NELM: 4.4

Frank McCabe

2 thoughts on “Globular Cluster NGC 6934 in Delphinus”

  1. Frank,

    I really enjoyed how you were able to reproduce the subtle yet recognizable nuance of this GC in Delphinus.

    Very nice!

  2. Wade,

    Thank you. It is just a bit too bright. I do have some difficulties with globular cluster sketching but I enjoy trying.


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