Berkeley 5 (OCL-331) Open Cluster in Cassiopeia

Located at: RA 01 hours 47 minutes 44 seconds, Dec +62 degrees 56 minutes 24 seconds

Size: 3.0' (5.0') Magnitude: -- Class: IV 1 p

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

  ST-8XME, self-guided, binned 1x1, temp -10c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 730 minutes  (73 x 10 minute subs), 10/17/19/20/21/2009; seeing 2.2-2.9 FWHM per CCDStack

Processing:

CCDStack 1.6.0.4, Photoshop 7.0

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes:

The little spot of nebulosity about 5.1 minutes to the SSE (lower left) of Berkeley 5 is [FT96] 129.4+0.8 -- HII (ionized) region (see the CDS information).

According to "Star Clusters", by Brent Archinal and Steven Hynes, the size of this open cluster is 5.0 arc minutes