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 GottliebHistorical 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. |