Dolidze 3 (Lund 936) Open Cluster in Cygnus

Located at: RA 20 hours 15 minutes 30 seconds, Dec +36 degrees 49 minutes 00 seconds

Size: 14' (7.0') Magnitude: -- Class: III 2 m n

North is up

West to the right

Telescope:

8" f5 Newtonian reflector

Camera:

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

Image:

Lumicon Red filter, 400 minutes (40 x 10 minute subs), 08/8/9/2008; seeing 2.3-2.9 FWHM per CCDStack

Processing:

CCDStack 1.3.7, Photoshop 7.0

Location:

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

Notes:

According to "Star Clusters", by Brent Archinal and Steven Hynes,  the size of this open cluster is 7.0 arc minutes; Comments: "Archinal: Condensation in Milky Way."