- Double Stars (CrB) -

And (13) Cep (12) Cyg (18) LMi (4) Per (3) UMi (1)
Aql (9) CMa (1) Del (2) Lyn (9) Psc (1) Vir (6)
Ari (5) Cnc (2) Dra (8) Lyr (8) Ser (3)
Aur (15) Com (1) Eri (1) Mon (1) Sex (1)
Boo (8) CrB (4) Gem (9) Oph (1) Tau (6)
Cam (2) Crv (1) Her (12) Ori (8) Tri (3)
Cas (17) CVn (2) Leo (11) Peg (4) UMa (5)

sigma CrB (**)

Name: sigma CrB, 17 CrB, STF2032
Type: **
Constellation: CrB
Coordinates: 16h14m40.85s / +33°51'31.00"

Components:
m1 m2 ρ θ Year
AB 5.6 6.5 7.3" 239° 2018
70mm f/5.7, 22x, Bortle 4, SQM-L 20.9
At 22x clearly separated, but very close with a clear difference in brightness. At 57x easy without any noticeable difference in color.

STF1964 (**)

Name: STF1964
Type: **
Constellation: CrB
Coordinates: 15h38m12.91s / +36°14'48.60"

Components:
m1 m2 ρ θ Year
AC 8.1 8.1 14.5" 90° 2017
CD 8.1 9.0 1.6" 21° 2017
102mm f/11, 62x
AC: Rather wide pair, equal without visible difference in color.

120mm f/5, 23x, Bortle 6, NELM 5.0+, SQM-L 19.4
AC: Nice double star, well split with equally bright components.

STF1965 (**)

Name: STF1965, zeta 2 CrB
Type: **
Constellation: CrB
Coordinates: 15h39m22.68s / +36°38'09.00"

Components:
m1 m2 ρ θ Year
5.0 5.9 6.4" 306° 2018
102mm f/11, 28x
At 28x very tight and barely split, unequal. At 86x very nice view. No difference in color: both components appeared white.

120mm f/5, 48x, Bortle 6, NELM 5.0+, SQM-L 19.4
Very nice double star, well split with noticeable difference in brightness.

STF1973 (**)

Name: STF1973
Type: **
Constellation: CrB
Coordinates: 15h46m24.50s / +36°26'45.60"

Components:
m1 m2 ρ θ Year
7.6 8.8 30.8" 320° 2015
120mm f/5, 23x, Bortle 6, NELM 5.0+, SQM-L 19.4
Nice double star, easy to split with noticeable difference in brightness.