NGC 225 (Lund 25, Cr 7) Open Cluster in Cassiopeia
Located at: RA 00 hours 43 minutes 30 seconds, Dec +61 degrees 47 minutes 00 seconds
Size: 12' (15'); Magnitude: 7.0; Class: III 1 p n
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, 240 minutes (24 x 10 minute subs), 10/11/2008; seeing 2.6-4.3 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: | This field contains two objects that are not plotted on my charting software
(Megastar v5.0.12). The plume of nebulosity just above NGC 225 is the
Bright Nebula vdB 4 (GN 00.40.4), and just above vdB 4 is the
Southern end of the Dark Nebula LDN 1302. According to "Star Clusters", by Brent Archinal and Steven Hynes, the size of this open cluster is 15 arc minutes. From the NGC / IC Project: Contemporary Visual Observation(s) for NGC 225NGC 0225 = Cr 7 = OCL-305 = Lund 25 00 43.5 +61 47 V = 7.0; Size 12 17.5": about two dozen stars at 100x in a 12' diameter. Bright but scattered. Outline forms an isosceles triangle with the vertex at W edge and the long base on the E side. Most stars are mag 10-11 and evenly spaced. The cluster appears completely resolved. Only one fairly close double star in group. Just ENE of the main group is a line of five mag 9 stars oriented N-S. 8": two dozen stars in cluster, fairly bright but scattered, no dense spots. - by Steve Gottlieb |