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Last update: 2017-11-14

VdS FG

- Double Stars (Tau) -

This is just a small selection of evident, quite recommendable double stars. Some of these I have 'found' during starhopping.

And (4) Boo (1) Com (1) Del (2) Peg (4) Tau (5)
Aql (3) Cas (9) CVn (2) Her (2) Per (1) UMa (1)
Ari (2) Cep (3) Cyg (4) Oph (1) Psc (1)

STF401 (**)

Name: STF401
Type: **
Constellation: Tau
Coordinates: 03h31m20.76s / +27°34'18.50"
Components: AB / v6.6 mag / v6.9 mag / 11.4" / 269° / 2016
120mm f/5, 18x, Bortle 6-, NELM 4.8+, SQM-L 19.1
Barely split at 18x. At 40x difference in brightness is visible. Nice view together with the double star STFA7 located northwest.

STF427 (**)

Name: STF427, V1268 Tau
Type: **
Constellation: Tau
Coordinates: 03h40m38.77s / +28°46'24.00"
Components: v7.4 mag / v7.8 mag / 7.0" / 207° / 2016
120mm f/5, 40x, Bortle 6-, NELM 4.8+, SQM-L 19.1
At 40x barely split. At 75x easily split with visible difference in brightness.

STF479 (**)

Name: STF479
Type: **
Constellation: Tau
Coordinates: 04h00m56.81s / +23°12'05.40"
Components: AB / v6.9 mag / v7.8 mag / 7.5" / 127° / 2015
8" f/6, 37x, Bortle 4, SQM-L 21.00
Nice, evident double star, easy to split. Slight difference in brightness.

STF742 (**)

Name: STF742
Type: **
Constellation: Tau
Coordinates: 05h36m26.38s / +21°59'35.10"
Components: v7.1 mag / v7.5 mag / 4.1" / 274° / 2017
Located about 0.5 degree east of Messier 1.

8" f/6, 80x, Bortle 4-, SQM-L 20.8
Nice double star with nearly equally bright components.

STFA7 (**)

Name: STFA7
Type: **
Constellation: Tau
Coordinates: 03h31m03.47s / +27°43'53.60"
Components: AB / v7.4 mag / v7.8 mag / 44.0" / 234° / 2015
120mm f/5, 18x, Bortle 6-, NELM 4.8+, SQM-L 19.1
Well split with noticeable difference in brightness. Nice view together with the double star STF401 located southeast.