NGC 2302 (Lund 264, OCL-554) Open Cluster in Monoceros

Located at: RA 06 hours 51 minutes 54 seconds, Dec -07 degrees 05 minutes 00 seconds

Size: 2.5' (5.0') Magnitude: 8.9 Class: III 2 m

North is up

West to the right

Telescope:

 8" f5 Newtonian reflector

Camera:

  ST-8XME, self-guided, binned 1x1, temp -25c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 260 minutes (26 x 10 minute subs), 03/5/6/2009; seeing 2.3-3.1 FWHM per CCDStack

Processing:

CCDStack 1.5.2.1, 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 5.0 arc minutes.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 2302

NGC 2299 = N2302?? = OCL-554 = Lund 264
06 51 54 -07 05.0

See observing notes for N2302

Discovered by JH (h412): "A coarse cl, not v rich, 30 or 40 st, probably only an 
outlying portion of VIII 39 [N2302]".  Reinmuth adds "many st, but nothing like 
a cluster."  GSC does not show anything at h's position (NW of N2302) but Corwin 
suggests that due to JH's imprecise position and the fact that N2302 was not 
recorded on the sweep, that is possibly N2302 and JH didn't realize it was a 
duplicate observation.  See NGCBGUGS.

- by Steve Gottlieb

NGC 2302 = OCL-554 = Lund 264 = N2299??
06 51 54 -07 05.0
V = 8.9;  Size 3

17.5" (2/1/03): at 140x, this a fairly small group (~4' diameter) of roughly two 
dozen stars embedded in a large, scattered field of stars.  On the west side is 
a nice quadruple including three mag 10 stars.  On the E side is a double and a 
triple star forming a "V" asterism.  Located 7' SE of mag 6.6 SAO 133781.  This 
star has perhaps a dozen stars within 3' but does not look to be a plausible 
candidate for N2299 (likely a duplicate of N2302).

17.5": 20 stars resolved at 140X, in fairly small group.  Not rich but includes 
some close doubles.  The three brightest mag 10 stars form a shallow arc on the 
W side with fourth fainter star nearby.  On the E side is a V-shaped group of 
six stars with the vertex at the E side.  The central portion includes a few 
scattered stars with a line of three stars on the S side.

- by Steve Gottlieb
Historical Research Notes / Correction for NGC 2302
NGC 2299 is probably the same cluster as NGC 2302.  JH saw it only once, and
has noted its position as uncertain in both coordinates.  JH's description 
reads, "A coarse cluster, not very rich; 30 or 40 stars; probably only an
outlying portion of VIII 39," and could easily match N2302.  His three 
accordant observations of N2302 are all in other sweeps.  Had the two clusters
been seen on the same night, I would not have entertained thoughts about 
equating the objects. - Dr. Harold G. Corwin, Jr.