Type | Open Cluster |
---|---|
Magnitude | 7 |
Size | 15' |
Right Ascension | 0h 43' 36" (2000) |
Declination | 61° 46' 0" N |
Constellation | Cassiopeia |
Description | Cl, L, lC, st 9...10 |
Classification | III1pn |
Andrew Cooper
Nov 2, 2019 Kaʻohe, Mauna Kea, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 127x
Seeing: 7 Transparency: 6 Moon: 39%
Large, poor, coarse, fully resolved, a dozen 10-11 magnitude stars in a 15' area
Andrew Cooper
Dec 27, 2002 Sentinel, AZ (map)
46cm f/4.5 Deep Violet
Large, bright, sparse, about 20 members of the same magnitude evenly spread in a circular area, rich galactic star field
Rev. T.W. Webb
May 19, 1885 Hardwick, Herefordshire, England (map)
Fine cluster, somewhat like the letter W; half way from γ to κ.― Celestial Objects for Common Telescopes, T. W. Webb, 1917
Captain William Henry Smyth
Nov 17, 1833 No. 6 The Crescent, Bedford, England (map)
150mm f/17.6 refractor by Tully 1827
A small double star, in a loose cluster of about thirty of the 9th and 10th magnitudes, occupying all the field; but there being no star- dust, or nebulosity intermixed, the firmament appears unusually dark between them. The most conspicuous object is the double star here carefully estimated, of which A is of the 8½ magnitude, and B of the llth, both pale. It is No. 1046 of H.'s Fourth Series. This cluster, which is on the seat of Cassiopea, and exactly half-way between γ and κ, was discovered by Miss Herschel in 1784; and described by William Herschel. as "taking up 15 or 20 minutes."― A Cycle of Celestial Objects Vol II, The Bedford Catalogue, William Henry Smyth, 1844
Harold Corwin
This cluster has a loose concentration in its southeast side that is usually taken as the center of the cluster. I've kept the position (from Brian Skiff) that clearly refers to this concentration, but looking at the field, I put the center a few arcminutes to the northeast. This is a little closer to the positions that WH and John Herschel have left us. I also note that a star on the northwestern side has a patch of nebulosity associated with it.― NGC Notes by Harold Corwin
Berkeley 3 | Czernik2 | Dolidze 12 |
HD 3283 | HD 3489 | NGC 189 |
PK121+0.1 | PK121-2.1 |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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