| Type | Open Cluster |
|---|---|
| Magnitude | 6.3 |
| Size | 20' |
| Right Ascension | 20h 9' (2000) |
| Declination | 35° 29' N |
| Constellation | Cygnus |
| Description | Centered on HD191566 v=7.72 |
| Classification | III2p |
Andrew Cooper
Jun 24, 2023 Waikoloa, HI (map)
15cm f/5 Newtonian, Primero @ 53x
Seeing: 7 Transparency: 7 Moon: 0%
A coarse grouping in rich galactic starfield located between two NGC clusters and a bit south, centered on the 7th magnitude star HD 191566, the cluster is a scattering of 9th to 11th magnitude stars over a 20' area, NGC 6883 is 32' northeast while NGC 6811 is 43' west-northwest
Andrew Cooper
Sep 6, 2021 Waikoloa, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 175x
Seeing: 7 Transparency: 7 Moon: 0%
A modestly enhanced region around Σ 2639, not notably distinct from the surrounding rich galactic starfield, about 15' diameter, coarse, poor, resolved
| b1 Cygni | Barnard 147 | Berkeley 50 |
| Biur1 | Biur2 | HD 190918 |
| HD 191493 | HD 191494 | HD 191566 |
| IC 1310 | NGC 6871 | NGC 6883 |
| Ru172 | RY Cygni |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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