- Double Stars (Aur) -

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

SIN128 (**)
Name: SIN128
Type: **
Constellation: Aur
Coordinates: 06h01m14.73s / +31°32'28.10"

Components:
m1 m2 ρ θ Year
AC 7.3 7.6 2.6" 193° 1985
70mm f/5.7, 133x
Even at high magnification there are no indications of a double star. Also the brightness seemed to be less than stated!?

STF616 (**)
Name: STF616, omega Aur, 4 Aur
Type: **
Constellation: Aur
Coordinates: 04h59m15.41s / +37°53'24.90"

Components:
m1 m2 ρ θ Year
AB 5.0 8.2 4.8" 5° 2014
70mm f/5.7, 44x
At 44x fainter component seen as fine star close to the primary component. At 57x wonderful view! Overall easy to split.

STF648 (**)
Name: STF648
Type: **
Constellation: Aur
Coordinates: 05h10m59.19s / +32°02'19.50"

Components:
m1 m2 ρ θ Year
AB 8.1 8.9 4.7" 62° 2017
55mm f/9.1, 40x, Bortle 6, SQM-L 19.4
At 40x tight with obviously fainter component.
70mm f/5.7, 33x
Separated, but tight with noticeable difference in brightness.

STF666 (**)
Name: STF666
Type: **
Constellation: Aur
Coordinates: 05h17m05.80s / +33°19'47.20"

Components:
m1 m2 ρ θ Year
7.8 7.9 3.1" 76° 2018
55mm f/9.1, 83x, Bortle 6, SQM-L 19.4
At 40x slightly elongated, at 38x separated, but tight. Overall faint with components of similar brightness.
70mm f/5.7, 57x
Split, no difference in brightness and color. Very nice!

STF669 (**)
Name: STF669
Type: **
Constellation: Aur
Coordinates: 05h18m56.78s / +45°14'51.40"

Components:
m1 m2 ρ θ Year
8.4 9.0 9.9" 278° 2014
55mm f/9.1, 25x, Bortle 6, SQM-L 19.4
Well separated with visible difference in brightness.

STF699 (**)
Name: STF699
Type: **
Constellation: Aur
Coordinates: 05h25m38.50s / +38°02'41.10"

Components:
m1 m2 ρ θ Year
AB 7.9 8.6 8.9" 346° 2018
55mm f/9.1, 25x, Bortle 6, SQM-L 19.4
Well separated with slightly fainter companion.

STF718 (**)
Name: STF718
Type: **
Constellation: Aur
Coordinates: 05h32m20.59s / +49°23'36.50"

Components:
m1 m2 ρ θ Year
AB 7.5 7.5 7.7" 73° 2015
55mm f/9.1, 25x, Bortle 6, SQM-L 19.4
Easy to split with similarly bright components. Nive view.

STF736 (**)
Name: STF736
Type: **
Constellation: Aur
Coordinates: 05h37m07.20s / +41°49'41.70"

Components:
m1 m2 ρ θ Year
7.5 8.6 2.7" - 2015
70mm f/5.7, 57x
At 57x split with almost no space in between. At 100x clearly split with noticeable fainter component.

STF764 (**)
Name: STF764
Type: **
Constellation: Aur
Coordinates: 05h41m20.98s / +29°29'14.70"

Components:
m1 m2 ρ θ Year
6.4 7.1 25.6" 14° 2017
55mm f/9.1, 25x, Bortle 6, SQM-L 19.4
Easy to split with large distance and noticeable difference in brightness.

STF796 (**)
Name: STF796
Type: **
Constellation: Aur
Coordinates: 05h49m55.53s / +31°47'08.70"

Components:
m1 m2 ρ θ Year
AB 7.2 8.2 3.7" 62° 2015
55mm f/9.1, 83x, Bortle 6, SQM-L 19.4
Well split with noticeable fainter companion.

STF845 (**)
Name: STF845, 41 Aur
Type: **
Constellation: Aur
Coordinates: 06h11m36.59s / +48°42'39.60"

Components:
m1 m2 ρ θ Year
6.2 6.9 7.5" 358° 2017
55mm f/9.1, 25x, Bortle 6, SQM-L 19.4
Relatively tight with visible difference in brightness.

STF872 (**)
Name: STF872
Type: **
Constellation: Aur
Coordinates: 06h15m39.06s / +36°08'55.30"

Components:
m1 m2 ρ θ Year
AB 6.9 7.4 11.3" 215° 2017
55mm f/9.1, 25x, Bortle 6, SQM-L 19.4
Well separated with significant difference in brightness.

STF918 (**)
Name: STF918
Type: **
Constellation: Aur
Coordinates: 06h33m57.62s / +52°27'41.80"

Components:
m1 m2 ρ θ Year
AB 7.3 8.2 4.9" 336° 2017
55mm f/9.1, 40x, Bortle 6, SQM-L 19.4
At 40x tight, at 55x well split with obviously fainter companion.

STF994 (**)
Name: STF994
Type: **
Constellation: Aur
Coordinates: 06h59m27.19s / +37°05'53.50"

Components:
m1 m2 ρ θ Year
AB 7.9 8.1 26.4" 55° 2017
55mm f/9.1, 25x, Bortle 6, SQM-L 19.4
Well separated, large distance, slight difference in brightness.

STT545 (**)
Name: STT545, 37 Aur, theta Aur
Type: **
Constellation: Aur
Coordinates: 05h59m43.24s / +37°12'45.90"

Components:
m1 m2 ρ θ Year
AB 2.6 7.2 4.2" 305° 2017
70mm f/5.7, 57x
At 57x nothing seen at first sight. At 133x the much fainter component was visible after a short time as a tiny star in the correct position angle. With this knowledge, the observation at 57x was also successful, even if one has to look very closely. The challenge here is not so much the angular distance as the large difference in brightness.