NGC 6827 (Berkeley 48, Lund 906) Open Cluster in Vulpecula

Located at:* RA 19 hours 48 minutes 53 seconds, Dec +21 degrees 12 minutes 58 seconds

Size: 4.0' (2.0') Magnitude: -- Class: I 1 m

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, 240 minutes (24 x 10 minute subs), 08/30 & 09/5/2008; seeing 2.7-4.2 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 2.0 arc minutes, containing 30 stars. Megastar v5.0.12 gives the size as 4.0', containing 30 stars. In part, "Star Clusters" indicates that "The Lund Catalogue ... gives a position that is about 2' too far south and a size for the cluster of 4' ... rather than the 2' diameter the the DSS shows. The position given here is measured from the DSS and is for the central "clump" of stars. The given measured diameter here (2') is clearly better than the Lund Catalogue value (4')."

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 6827
NGC 6827 = Be 48 = OCL-120 = Lund 906
19 48 53.4 +21 12 54
Size 4

17.5": in a very rich milky way field is a faint, smooth, 2' unresolved glow 
similar to a low surface brightness galaxy.  A mag 13 star is at the west edge.  
A slightly brighter knot or a 15th magnitude star is superimposed but no other 
resolution.  Located just W of a very large, scattered group which just stands 
out due to many stars mag 11/12 at the edges.

- by Steve Gottlieb