Tau Ophiuchi
Overlaid DSS image of Tau Ophiuchi, 60' x 60' with north at top and west to the right
Aladin viewer for the region around Tau Ophiuchi
τOph, 69OphB
BD-08 4549, HD 164765J, HIP 88404
BD-08 4549, HD 164765J, HIP 88404
| Type | Star |
|---|---|
| Magnitude | 4.78 | Right Ascension | 18h 3' 5.0" (2000) |
| Declination | 8° 10' 49" S |
| Constellation | Ophiuchus |
| Description | Multiple 5.3/5.9/11.3 1.8"/99" |
Observing Notes
Andrew Cooper
Aug 9, 2021 Waikoloa, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 130x
Seeing: 6 Transparency: 5.5 Moon: 3%
A tight binary with less than a magnitude difference, the B companion is 1.4" west, both pale yellow, just barely split under mediocre conditions tonight, two stars appearing when at critical focus, the 11th magnitude star visible 100" southeast is listed as the C companion
Other Data Sources for Tau Ophiuchi
Associated objects for Tau Ophiuchi
Nearby objects for Tau Ophiuchi
6 objects found within 60'
| HD 165402 | NGC 6517 | NGC 6539 |
| Tau Ophiuchi A | Tau Ophiuchi B | Tau Ophiuchi C |
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
Tau Ophiuchi