Type | Open Cluster |
---|---|
Magnitude | 8.5 | Right Ascension | 17h 37' 36.2" (2000) |
Declination | 35° 1' 33" S |
Constellation | Scorpius |
Description | Cl, pL, lRi, lC |
Classification | II 3 p |
Harold Corwin
John Herschel's RA, which he says is for the double star on the northern edge of the cluster, is 27 seconds too small. This may be a wire error. In the sweep, he claims wire 1; if he actually used wire 2, then the RA would be 17 37 48 for J2000, just 10 seconds off.
Even if this is not John Herschel's mistake, there is no mistaking the cluster that he saw on the night of 7 June 1837.― NGC Notes by Harold Corwin
Collinder 333 | Collinder 345 | Harvard 16 |
HD 160668 | NGC 6400 | NGC 6404 |
NGC 6415 | PK355-2.1 | PK355-2.2 |
PK355-2.4 | Ru126 | Ru128 |
Ruprecht 127 | Trumpler27 |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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