NGC 7128 (Lund 998, Cr 440) Open Cluster in Cygnus
Located at: RA 21 hours 44 minutes 00 seconds, Dec +53 degrees 43 minutes 00 seconds
Size: 3.1' (4.0'); Magnitude: 9.7; Class: I 3 m
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 Deep Sky filter, 150 minutes (15 x 10 minute subs), 10/5/2007 |
| Processing: |
CCDStack 1.3, 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 4.0 arc
minutes. From the NGC / IC Project: Contemporary Visual Observation(s) for NGC 7128 NGC 7128 = Cr 440 = Lund 998 = OCL-218 21 43 57 +53 42.9 V = 9.7; Size 3 17.5": 22 stars mag 11-13 in rich and compact 2.5' region. Most stars are arranged in oval ring NW-SE. A mag 11.5 star at the E edge has several very faint companions. Two mag 11 stars are on the south side. A double star mag 12/12 is on the west side as well as a few other double stars. A string of stars oriented SW-NE is just NW of the oval ring. 8": 15 faint stars, small, rich, over background haze, two mag 11 stars are at the S edge. - by Steve Gottlieb |