Sephdar
Overlaid DSS image of Sephdar, 60' x 60' with north at top and west to the right
Aladin viewer for the region around Sephdar
Eta Sagittarii, η Sgr
CD-36 12423, HD 167618, HR 6832, WDS J18176-3646, SAO 209957, HIP 89642, Gaia DR3 4038055447778237312
CD-36 12423, HD 167618, HR 6832, WDS J18176-3646, SAO 209957, HIP 89642, Gaia DR3 4038055447778237312
| Type | Star |
|---|---|
| Magnitude | 3.11 | Right Ascension | 18h 17' 37.7" (2000) |
| Declination | 36° 45' 42" S |
| Constellation | Sagittarius |
| Classification | M2III |
Observing Notes
Andrew Cooper
Sep 16, 2020 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 5 Transparency: 6 Moon: 11%
Brilliant orange, in very rich galactic starfield, the 8th magnitude 3.5" companion is not visible, the 10th magnitude 93" companion HD167600 is easily visible to the northwest
HD167600 is also WDS J18176-3646D, despite being listed as a companion in the WDS modern parallax data of 1.16mas shows it is not physically related but much further away. The 8th magnitude 3.5" companion does share the same parallax 22.3 for A and 21.1mas for B.
Andrew Cooper
Aug 9, 2020 Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 5 Transparency: 6 Moon: 0%
Brilliant orange, the 7.7 magnitude 3.6" companion not visible
Other Data Sources for Sephdar
Associated objects for Sephdar
Nearby objects for Sephdar
5 objects found within 120'
| HD 167600 | HD 168592 | HD 168838 |
| PK356-7.2 | V4050 Sagittarii |
Credits...
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
A complete list of credits and sources can be found on the about page
Sephdar