Harvard 21
Overlaid DSS image of Harvard 21, 60' x 60' with north at top and west to the right
Aladin viewer for the region around Harvard 21
Collinder 459, Cr 458, Ha 21, C 2351+614, OCl 273
| Type | Open Cluster |
|---|---|
| Magnitude | 9 |
| Size | 4' |
| Right Ascension | 23h 54' (2000) |
| Declination | 61° 44' N |
| Constellation | Cassiopeia |
| Description | pRi, C, 13"-12* at 100X, mags 12 and fainter |
| Classification | IV 2 p |
Observing Notes
Andrew Cooper
Nov 30, 2021 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 6 Transparency: 7 Moon: 0%
A rough clump of a dozen stars in a 3' area, coarse, poor, not a convincing cluster
Other Data Sources for Harvard 21
Nearby objects for Harvard 21
4 objects found within 60'
| BD+60 2644 | Frolov 1 | |
| NGC 7788 |
Credits...
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
A complete list of credits and sources can be found on the about page
Harvard 21