| Type | Double Star |
|---|---|
| Magnitude | Right Ascension | 20h 4' 8.9" (2000) |
| Declination | 17° 0' 3" N |
| Constellation | Sagitta |
| Classification | F2 |
Andrew Cooper
Jun 20, 2023 Waikoloa, HI (map)
15cm f/5 Newtonian, Primero @ 92x
Seeing: 6 Transparency: 7 Moon: 0%
A fine pair of 9th magnitude stars 4' south of 15 Sge, 8.8/9.5 with 6" separation, the fainter companion is sout-southwest of the primary in rich galactic starfield
Gaia data lists no parallax for the companion, proper motions are different, but not dramatically so and are quite small for both, -0.05/-3.27 mas/yr for A and 3.446/-4.173 mas/yr for B
| 11 Sagittae | 13 Sagittae | 14 Sagittae |
| 15 Sagittae | NGC 6879 |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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