- Double Stars (Lyn) -

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)

STF948 (**)

Name: STF948, 12 Lyn
Type: **
Constellation: Lyn
Coordinates: 06h46m14.15s / +59°26'30.10"

Components:
m1 m2 ρ θ Year
AB 5.4 6.0 1.9" 66° 2018
AC 5.4 7.0 8.8" 310° 2018
55mm f/9.1, 167x
AB: Components A and B separated, whereby the Airy disks slightly overlap. The difference in brightness was well visible.

../sketches/2019-01-21_stf948.jpg

55mm f/9.1, 27x
AC: Components A/B and C well separated, but tight. Significant difference in brightness. The fainter C companion appeared slightly orange, the brighter one white-bluish.

63mm f/13.3, 140x
AB: Components A and B split with almost no space in between. The difference in brightness was visible.

../sketches/2019-01-22_stf948.jpg

70mm f/5.7, 133x
AB: Both components A + B clearly split, whereby the diffraction rings where merged together. A very nice view together with component C. I sketched this triplet, which reflects my impression well. Unfortunately, the distance and position angle are not particularly well observed. Also the difference in brightness I didn't noticed during my observation.

../sketches/2019-01-20_stf948.jpg

70mm f/5.7, 22x
AC: Well split, relatively close together with significant difference in brightness.

STF958 (**)

Name: STF958
Type: **
Constellation: Lyn
Coordinates: 06h48m12.29s / +55°42'15.10"

Components:
m1 m2 ρ θ Year
AB 6.3 6.3 4.5" 77° 2018
70mm f/5.7, 33x
Clearly split, equally bright, close together. Nice view.

STF1009 (**)

Name: STF1009
Type: **
Constellation: Lyn
Coordinates: 07h05m39.83s / +52°45'31.30"

Components:
m1 m2 ρ θ Year
AB 6.9 7.0 4.4" 149° 2018
70mm f/5.7, 33x
Very nice view. Equally bright components, tight.

STF1050 (**)

Name: STF1050
Type: **
Constellation: Lyn
Coordinates: 07h19m51.29s / +54°55'18.40"

Components:
m1 m2 ρ θ Year
AB 8.1 8.8 19.3" 21° 2017
70mm f/5.7, 22x
Rather faint, obviously split with visible difference in brightness. View similar to STF 1062.

STF1062 (**)

Name: STF1062, 19 Lyn
Type: **
Constellation: Lyn
Coordinates: 07h22m52.06s / +55°16'53.30"

Components:
m1 m2 ρ θ Year
AB 5.8 6.7 14.8" 316° 2018
70mm f/5.7, 22x
Clearly separated, moderate distance, noticeable difference in brightness. The colors seemed different, but not exactly definable.

STF1065 (**)

Name: STF1065, 20 Lyn
Type: **
Constellation: Lyn
Coordinates: 07h22m15.11s / +50°08'55.70"

Components:
m1 m2 ρ θ Year
7.5 7.7 14.9" 256° 2017
70mm f/5.7, 22x
Nicely split, moderate distance, similarly bright.

STF1333 (**)

Name: STF1333
Type: **
Constellation: Lyn
Coordinates: 09h18m25.97s / +35°21'51.30"

Components:
m1 m2 ρ θ Year
6.6 6.7 1.9" 50° 2017
63mm f/13.3, 120x
At 93x seen as '8', at 120x split, but pretty tight with no visible difference in brightness.

STF1334 (**)

Name: STF1334, 38 Lyn
Type: **
Constellation: Lyn
Coordinates: 09h18m50.64s / +36°48'09.30"

Components:
m1 m2 ρ θ Year
AB 3.9 6.1 2.5" 229° 2017
63mm f/13.3, 140x
Fainter companion only seen as permanent brightening on the first diffraction ring.

../sketches/2019-01-22_stf1334.jpg

STT174 (**)

Name: STT174
Type: **
Constellation: Lyn
Coordinates: 07h35m56.00s / +43°01'51.40"

Components:
m1 m2 ρ θ Year
6.6 8.3 1.9" 92° 2017
70mm f/5.7, 133x
The obviously fainter component could be permanently seen in the right position angle as brightening on the first diffraction ring.