| Type | Binary Star |
|---|---|
| Magnitude | 6.8 | Right Ascension | 17h 59' 3.6" (2000) |
| Declination | 30° 2' 56" N |
| Constellation | Hercules |
| Classification | G8II-III |
Andrew Cooper
Aug 3, 2023 Waikoloa, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 233x
Seeing: 5 Transparency: 7 Moon: 0%
Σ 2259 is a delicate binary consisting of HD 164252 and HD 164253, the former is a 7th magnitude orange with the latter an 8th magnitude white visible 20" west, the brilliant 4th magnitude ν Her is visible 10' northwest
Gaia EDR3 data shows this pair to possess closely matched parallax and proper motion
| HD 164252 | HD 164253 | |
| Xi Herculis |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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