Type | Open Cluster w/Nebulosity |
---|---|
Magnitude | 7.4 |
Size | 8' |
Right Ascension | 20h 23' (2000) |
Declination | 40° 46' N |
Constellation | Cygnus |
Description | Cl, pB, pS, P, pC, *20.12 |
Classification | I 2 p n |
Andrew Cooper
Sep 25, 2021 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 6 Transparency: 6 Moon: 0%
A distinct clump in a rich galactic starfield, bright and obvious, a 5' arc of 7-10th magnitude star, coarse, resolved, 30' north of Sadr
Andrew Cooper
Jul 7, 2002 TIMPA, Avra Valley, AZ (map)
25cm f/10 SCT
A chain of stars with bright stars at either end, only a dozen or so stars, sparse, concentrated, easily distinguished from the field
Rev. T.W. Webb
May 19, 1885 Hardwick, Herefordshire, England (map)
Beautiful group. h., 10-12. 1/2° north of γ, a little following.― Celestial Objects for Common Telescopes, T. W. Webb, 1917
Collinder 421 | Dolidze 10 | Dolidze 11 |
Dolidze 43 | Dolidze 6 | |
Sadr |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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