HD 161820
DSS image of HD 161820
Overlaid DSS image of HD 161820, 60' x 60' with north at top and west to the right

Aladin viewer for the region around HD 161820
BD+05 3498, SAO 122746, GSC 00424-00867

Type  Variable Star
Magnitude  8.35 (avg.)
Right Ascension  17h 47' 29.0"  (2000)
Declination  5° 36' 15" N
Constellation  Ophiuchus
Classification  K5
Observing Notes

Andrew Cooper
Jun 16, 2020    Waikoloa, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 127x
Seeing: 7 Transparency: 6 Moon: 0%

Orange, no companion noted, on the eastern margin of the large coarse cluster IC4865

Steve Coe

On eastern side of CL IC 4665
― SAC Red Star Database
Other Data Sources for HD 161820
Nearby objects for HD 161820
4 objects found within 120'
Cebalrai HD 162917
NGC 6481
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

HD 161820