NGC 1647
By Jeremy Perez
Observation Notes:
I first noticed NGC 1647 between the horns of Taurus in a wide-field astro photo I shot of the area in November 2005. I had been meaning to observe and sketch it since then. At 37.5X magnification, the cluster appeared large, bright and sparse. Two colorful yellow and yellow-orange stars rested at the south side of the cluster. I noted several doubles within. The diameter of the main body of the cluster appeared to be about 30 arc minutes. Several bright Orionids graced the sky and caught my attention during the observation and sketch.
Object Information
NGC 654 was discovered by Friedrich Wilhelm Herschel in 1784. According to Catalogue of open cluster parameters from UBV-data. (Loktin+, 1994), the cluster is about 509 parsecs distant (1,660 light years). Star Clusters and Associations, Selected Data (Alter+ 1970) lists a distance of 550 parsecs (1,790 ly). The cluster is also catalogued as Cr 54, Mel 26, OCL 457, Lund 139, H VIII-8, GC 896.
Jeremy,
Excellent open cluster sketch. The yellow suns set it off nicely. It is always nice to see deep sky sketches here. There are so many worthwhile targets to see in the eyepiece.
Frank 🙂
Frank, thank you!
Jeremy