NGC 7510 (Lund 1030, Cr 454) Open Cluster in Cepheus

Located at: RA 23 hours 11 minutes 04 seconds, Dec +60 degrees 34 minutes 08 seconds

Size: 4.0' (7.0') Magnitude: 7.9 Class: II 3 r 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:

 Red (Hoya 25A) filter, 130 minutes (13 x 10 minute subs), 09/3/2006

Processing:

 CCDStack 1.1, Photoshop 7.0

Location:

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

Notes:

Also near M 52, NGC 7538 and "The Bubble", this area of the sky is laced with faint nebulosity. Some of which is seen to the east (left) of NGC 7510. See the 14.5" version.

According to "Star Clusters", by Brent Archinal and Steven Hynes, the size of this open cluster is 7.0 arc minutes.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 7510

NGC 7510 = Cr 454 = Lund 1030 = OCL-256
23 11 04 +60 34.3
V = 7.9;  Size 4

18" (10/9/04): beautifully rich, small cluster with a triangular or wedge-shaded 
outline.  Roughly 50 stars are resolved in a 4'x2' region with additional 
sprays of stars extending to the SW and NE.  There is a well-defined border of 
brighter stars running SW-NE along the south side of the wedge with the 
brightest mag 9.6 member at the east end of this string.  There are several 11-
12th mag members, but most seem mag 13 and fainter.  The north end of the giant 
HII complex, Sh 2-157, lies ~30' E.

17.5" (10/17/98): very pretty triangular wedge of stars in a 5x2' group.  There 
are brighter stars at the W and E vertex with the brightest star at the 
following end.  Within the triangle are two dozen stars oriented SW-NE including 
a number of mag 14-15 stars on the eastern side.  Just following the main 
grouping are another 8 or 9 stars which may be part of the cluster.  Picked up 
while viewing nearby Sh2-157.

13" (9/9/83): striking at 62x, about two dozen stars in a wedge-shape elongated 
SW-NE.  Compact cluster Mrk 50 and HII region LBN 11 is ~30' ESE.

- by Steve Gottlieb