
| Type | Star |
|---|---|
| Magnitude | 6.8 | Right Ascension | 18h 2' 23.0" (2000) |
| Declination | 23° 1' 60" S |
| Constellation | Sagittarius |
| Classification | B6V |
Andrew Cooper
Aug 10, 2020 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 5 Transparency: 6 Moon: 0%
Blue-white, a 10th magnitude 6.2" companion not visible, one of several bright stars at the center of M20 including the 6.8 magnitude HD 164492 visible 10" northeast
| 4 Sagittarii | Barnard 85 | Bochum 14 |
| CD-23 13793 | HD 164402 | HD 164492 |
| HD 164514 | Messier 20 | Messier 21 |
| Ru139 |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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