- Double Stars (Ser) -

And (32) Cep (13) CVn (11) Her (15) Mon (1) Sex (2)
Aql (9) Cet (1) Cyg (25) Hya (4) Oph (1) Tau (11)
Ari (8) CMa (1) Del (4) Leo (21) Ori (8) Tri (4)
Aur (27) Cnc (10) Dra (11) Lib (1) Peg (16) UMa (36)
Boo (19) Com (8) Equ (5) LMi (6) Per (18) UMi (1)
Cam (10) CrB (4) Eri (1) Lyn (18) Psc (7) Vir (6)
Cas (17) Crv (1) Gem (19) Lyr (11) Ser (3) Vul (3)

BU 32 (**)
Name: BU32, 6 Ser
Type: **
Constellation: Ser
Coordinates: 15h21m02.00s / +00°42'55.20"

Components:
m1 m2 ρ θ Year
AB 5m5 8m8 3.4" 22° 2008
Robert Zebahl
102mm f/11, 224x
Not split. Tried at 224x and 280x. Companion probably too faint. I had sidewalk lighting in the immediate vicinity.

STF 1931 (**)
Name: STF1931
Type: **
Constellation: Ser
Coordinates: 15h18m41.98s / +10°25'39.70"

Components:
m1 m2 ρ θ Year
AB 7m2 8m1 13.4" 166° 2018
AC 7m2 12m7 172.9" 93° 2015
Robert Zebahl
70mm f/5.7, 22x, Bortle 6
AB: 2020-04-24: At 22x clearly separated with a moderate difference in brightness. Striking, but still pretty tight. Primary component appears pale orange, the companion grey-blue. At 31x nice color contrast.

STF 1954 (**)
Name: STF1954, delta Ser, 13 Ser
Type: **
Constellation: Ser
Coordinates: 15h34m48.14s / +10°32'20.00"

Components:
m1 m2 ρ θ Year
AB 4m2 5m2 4.0" 171° 2019
AC 4m2 13m9 66.6" 18° 2014
CD 13m9 14m6 4.0" 341° 2018

../images/binary-star-orbits/STF1954-AB-orbit.jpg

Robert Zebahl
70mm f/5.7, 57x, Bortle 4, SQM-L 20.9
AB: Easy to separate with relatively close components and a clear difference in brightness. A appeared rather white, B slightly orange.