Sigma Coronae Borealis
DSS image of Sigma Coronae Borealis
Overlaid DSS image of Sigma Coronae Borealis, 60' x 60' with north at top and west to the right

Aladin viewer for the region around Sigma Coronae Borealis
σ CrB, TZ CrB, 17 CrB
Σ2032AB, BD+34 2750, HD 146361, HR 6063, WDS J16147+3352AB, SAO 65165, HIP 79607

Type  Multiple Star
Magnitude  
Right Ascension  16h 14' 40.8"  (2000)
Declination  33° 51' 31" N
Constellation  Corona Borealis
Description  Multiple 5.5/6.4/14.3 7"/635"
Observing Notes

Andrew Cooper
Jun 19, 2020    Waikoloa, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 127x
Seeing: 6 Transparency: 6 Moon: 0%

A beautiful yellow pair in the eyepiece with about a magnitude difference and 7" separation, 5.6/6.5 7.3", this is a multiple star system with at least five components of which two are easily visible, the primary σ CrB A is an extremely close binary, the C component is 14th magnitude and difficult for small telescopes, C is also close binary, the D component easily visible 100" east listed in WDS is probably not physically associated as it has a different proper motion
Other Data Sources for Sigma Coronae Borealis
Associated objects for Sigma Coronae Borealis
Nearby objects for Sigma Coronae Borealis
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

Sigma Coronae Borealis