King 4 (Lund 87, OCL 361) Open Cluster in Cassiopeia

Located at: RA 02 hours 36 minutes 02 seconds, Dec +59 degrees 01 minutes 00 seconds

Size: 3.0' (5.0') Magnitude: 10.5 Class: III 1 p

North is up

West to the right


 14.5" f5 Newtonian reflector


  ST-8XME, self-guided, binned 1x1, temp -15c, camera control MaxIm DL 4.56


Lumicon Red filter, 470 minutes (47 x 10 minute subs), 11/14/17/2017; seeing 2.4-4.5 FWHM per CCDStack

Processing: CCDStack 2.94.6355.18107, Photoshop CS5.1

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

Notes: We are still having bouts of high clouds (no rain) ... As with the previous image (PK 144-15.1), this was imaged though a night of high clouds, and one night of mostly clear skies.

See the 8" F5 image with Czernik 8.

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