Deep Sky Object in Summer
Cr399 (Open Cluster in Vulpecula)
|Date & Time: ||Jul 26 2014, from 24:29 to 24:45 JST(+0900)
|Composed 4 shots with 5 minutes exposed|
|Optical: ||TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
|with IDAS LPS-P1 light-pollution suppression filter|
|Auto-guided with TAKAHASHI EM-200 Equatorial & Meade Pictor 201XT
|Digital Camera: ||Canon EOS 600D (Remodeled)
|Location: ||Koumi town, Nagano pref.
|Camera Settings: ||Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)|
Cr399 is a very scattered open cluster about 8 degrees south of bata Cygni, Al bireo.
Perhaps you can hardly feel this picture as an open cluster, but is impressive that 6 stars lined up in straight and a pentagon just south of the line through binoculars.
Almost all of stars are about 6th magnitudes, the cluster is fairly detectable at the tip of head of the Cygnus.
|Cr 399 / Open Cluster, type III 3 m|
|R.A.||19h 25m 24.0s (2000.0)|
|Dec.||+20° 11' 00" (2000.0)|
|# of Stars||40|
This open cluster is often called "The Coat Hunger" from its unique shape.
I encourage you to see the interesting body with your own eyes.