NGC 7093 Open Cluster in Cygnus

Located at: RA 21 hours 34 minutes 36 seconds, Dec +45 degrees 59 minutes 31 seconds

Size: 6.0' Magnitude: -- Class: cluster?

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

  ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 480 minutes  (48 x 10 minute subs) 07/25/26/27/2010; seeing 2.2-3.2 FWHM per CCDStack

Processing:

CCDStack 2.10.3848.16825, Photoshop 7.0

Location:

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

Notes:* I imaged this object (about 24 stars around the 'bright' star, just west of center in this image), NGC 7039 and Basel 12, while to moon was near full ... all within 6 or 7 degrees of "The Wall" / Mexico section of NGC 7000 (North America Nebula).

According to "Star Clusters", by Brent Archinal and Steven Hynes, there are no Aliases for this object.

The CDS gives an image for 'NGC 7093', but does not return data for an NGC object at this position. The coordinates for this position (within 10 arc minutes) lists these 19 objects.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 7093
NGC 7093
21 34 20 +45 59.7
Size 5

17.5": fairly well detached but scattered group highlighted by mag 8.5 SAO 51043 
at the W edge.  There is also a mag 10 star on the south side and a total of 
about two dozen stars in a 5' region.  Shows best at 100x and at 220x but does 
not look at all like a cluster and only distinguished by the few brighter stars.  
Listed as nonexistent in RNGC.

- by Steve Gottlieb
Historical Research Notes / Correction for NGC 7093
NGC 7093.  JH does not tell us much about this cluster:  "The chief star (9m)
in a cluster of the 8th class.  The double * No. 1660 of my fourth catalogue
belongs to this cluster."  The cluster is indeed little compressed and 
scattered, and is apparently centered about 2 arcmin south of JH's accurate 
position for the star.  Visual confirmation would be desirable.
 - Dr. Harold G. Corwin, Jr.