- Double Stars (And) -

And (30) 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)

59 And (**)

Name: 59 And, STF222
Type: **
Constellation: And
Coordinates: 02h10m52.83s / +39°02'22.40"

Components:
m1 m2 ρ θ Year
6.0 6.7 16.6" 37° 2018
B 40mm, 8x, Bortle 7, SQM-L 19.0
Separated, but very tight. I used a tripod.

120mm f/5, 18x, Bortle 6, SQM-L 19.3
Well split with noticeable difference in brightness.

8" f/6, 100x, Bortle 4, NELM 6.0, SQM-L 20.9
SQM-L 20.4: Nice and evident double star, easy to split. About 12 arcminutes NE there is NGC828 (v12.3m),

164 And (**)

Name: 164 And, STF79
Type: **
Constellation: And
Coordinates: 01h00m03.56s / +44°42'47.70"

Components:
m1 m2 ρ θ Year
6.0 6.8 7.9" 195° 2018
55mm f/9.1, 25x, Bortle 7, SQM-L 19.0
Beautiful double star, relatively tight with visible difference in brightness.

A193 (**)

Name: A193
Type: **
Constellation: And
Coordinates: 23h01m23.99s / +46°38'18.00"

Components:
m1 m2 ρ θ Year
9.6 9.8 1.6" 176° 2017
102mm f/11, 160x, Bortle 6-, SQM-L 19.0
Observed at 125x and 160x under urban conditions (Bortle 6-, SQM-L 19.0). Too faint to separate the components.

A968 (**)

Name: A968
Type: **
Constellation: And
Coordinates: 02h31m15.90s / +47°02'32.10"

Components:
m1 m2 ρ θ Year
9.0 9.5 1.7" 27° 2017
102mm f/11, 125x, Bortle 6-, SQM-L 19.0
Clearly split, tight, slightly unequal.

A1487 (**)

Name: A1487
Type: **
Constellation: And
Coordinates: 23h29m12.09s / +40°42'09.40"

Components:
m1 m2 ρ θ Year
9.0 9.5 1.1" 157° 2016
102mm f/11, 125x, Bortle 6-, SQM-L 19.0
At 125x clearly visible as figure '8' with equally bright components. At 160x comparable view.

A1528 (**)

Name: A1528
Type: **
Constellation: And
Coordinates: 02h35m42.19s / +44°11'23.30"

Components:
m1 m2 ρ θ Year
9.4 9.6 1.6" 193° 2017
102mm f/11, 160x, Bortle 6-, SQM-L 19.0
At 125x almost separated with visible difference in brightness. AT 160x rather faint, barely split, little difference in brightness.

AC1 (**)

Name: AC1
Type: **
Constellation: And
Coordinates: 00h20m54.10s / +32°58'40.90"

Components:
m1 m2 ρ θ Year
7.3 8.3 1.9" 290° 2018
102mm f/11, 125x, Bortle 6-, SQM-L 19.0
Very attractive, relatively close with a clearly visible difference in brightness. In the immediate vicinity a brighter star shines in a lovely orange. Very nice contrast!

../sketches/2019-10-22_ac1.jpg

BU483 (**)

Name: BU483
Type: **
Constellation: And
Coordinates: 00h09m03.67s / +40°50'34.30"

Components:
m1 m2 ρ θ Year
AC 7.0 7.7 158.5" 268° 2015
B 40mm, 8x, Bortle 7, SQM-L 19.0
Large distance with significant difference in brightness.

BU728 (**)

Name: BU728
Type: **
Constellation: And
Coordinates: 23h52m09.63s / +43°30'31.60"

Components:
m1 m2 ρ θ Year
AB 8.7 8.9 1.3" 10° 2016
102mm f/11, 160x, Bortle 6-, SQM-L 19.0
At 125x two overlapping Airy disks with a small difference in brightness are visible. At 160x slightly better and almost separated.

ES4 (**)

Name: ES4
Type: **
Constellation: And
Coordinates: 01h31m05.02s / +43°37'14.60"

Components:
m1 m2 ρ θ Year
8.1 9.1 2.8" 101° 2016
70mm f/5.7, 128x
Not split. I probably didn't recognised the fainter component. The angular distance shouldn't be a problem.

ES2076 (**)

Name: ES2076
Type: **
Constellation: And
Coordinates: 23h00m56.79s / +37°13'54.10"

Components:
m1 m2 ρ θ Year
9.5 9.5 1.8" 162° 2016
102mm f/11, 125x, Bortle 6-, SQM-L 19.0
Observation under urban conditions (Bortle 6-, SQM-L 19.0). Too faint to separate.

HLD56 (**)

Name: HLD56
Type: **
Constellation: And
Coordinates: 22h59m42.14s / +41°49'25.20"

Components:
m1 m2 ρ θ Year
9.3 9.4 1.3" 92° 2016
102mm f/11, 160x, Bortle 6-, SQM-L 19.0
At 125x clearly visible as figure '8' with slight difference in brightness. Almost split at 160x.

HO306 (**)

Name: HO306
Type: **
Constellation: And
Coordinates: 00h48m06.71s / +25°32'54.30"

Components:
m1 m2 ρ θ Year
9.6 9.9 1.5" 159° 2016
102mm f/11, 160x, Bortle 6-, SQM-L 19.0
Pretty faint and tight with visible difference in brightness.

STF24 (**)

Name: STF24
Type: **
Constellation: And
Coordinates: 00h18m30.59s / +26°08'25.10"

Components:
m1 m2 ρ θ Year
7.8 8.4 5.1" 247° 2017
70mm f/5.7, 66x, Bortle 6-
Well split with visible difference in brightness.

STF33 (**)

Name: STF33
Type: **
Constellation: And
Coordinates: 00h30m58.47s / +34°05'53.90"

Components:
m1 m2 ρ θ Year
8.8 8.9 2.8" 213° 2017
70mm f/5.7, 128x, Bortle 4-, SQM-L 20.9
Components equally bright, easy to split.

STF55 (**)

Name: STF55
Type: **
Constellation: And
Coordinates: 00h44m22.95s / +33°37'05.60"

Components:
m1 m2 ρ θ Year
8.3 8.9 2.3" 331° 2016
70mm f/5.7, 128x, Bortle 7+, SQM-L 18.8
Well split with noticeable difference in brightness.

STF72 (**)

Name: STF72
Type: **
Constellation: And
Coordinates: 00h54m37.50s / +39°10'09.70"

Components:
m1 m2 ρ θ Year
8.4 9.3 23.3" 173° 2015
152mm f/5.9, 22x, Bortle 6, SQM-L 19.3
Easy with moderate difference in brightness. Both components appeared orange, the fainter one slightly more intense. The color was well visible at 69x.

STF73 (**)

Name: STF73, 36 And
Type: **
Constellation: And
Coordinates: 00h54m58.02s / +23°37'42.40"

Components:
m1 m2 ρ θ Year
AB 6.1 6.5 1.1" 334° 2018
102mm f/11, 125x, Bortle 6-, SQM-L 19.0
Clearly visible as figure '8' with a rather small difference in brightness.

STF104 (**)

Name: STF104
Type: **
Constellation: And
Coordinates: 01h16m57.09s / +38°27'38.70"

Components:
m1 m2 ρ θ Year
8.0 9.8 13.4" 323° 2015
152mm f/5.9, 69x, Bortle 6, SQM-L 19.3
Easy, rather close pair, but with a clear difference in brightness. Primary component appeared slightly orange, companion slightly gray-blueish.

STF108 (**)

Name: STF108
Type: **
Constellation: And
Coordinates: 01h18m47.00s / +37°23'10.60"

Components:
m1 m2 ρ θ Year
6.5 9.6 6.4" 62° 2017
120mm f/5, 75x, Bortle 6, SQM-L 19.1
Easily split with big difference in brightness.

152mm f/5.9, 69x, Bortle 6, SQM-L 19.3
Easy and pretty uneven. Primary component appeared slightly yellowish.

STF141 (**)

Name: STF141
Type: **
Constellation: And
Coordinates: 01h40m03.42s / +38°58'10.70"

Components:
m1 m2 ρ θ Year
8.3 8.6 1.7" 303° 2017
102mm f/11, 125x, Bortle 6-, SQM-L 19.0
Clearly separated, but still very close. Slightly uneven.

STF149 (**)

Name: STF149
Type: **
Constellation: And
Coordinates: 01h44m30.83s / +39°57'31.10"

Components:
m1 m2 ρ θ Year
8.2 9.3 1.4" 81° 2015
102mm f/11, 160x, Bortle 6-, SQM-L 19.0
At 125x almost split, noticeably uneven. At 160x split, but pretty tight.

STF205 (**)

Name: STF205, gamma And, 57 And, Alamak
Type: **
Constellation: And
Coordinates: 02h03m53.92s / +42°19'47.50"

Components:
m1 m2 ρ θ Year
A-BC 2.3 5.0 9.4" 63° 2016
63mm f/13.3, 42x, Bortle 6-, SQM-L 19.0
Easy to split with quite large difference in brightness.

152mm f/5.9, 100x, Bortle 6, SQM-L 19.3
Very easy. A: orange, BC: rather white.

STF245 (**)

Name: STF245
Type: **
Constellation: And
Coordinates: 02h18m36.27s / +40°16'43.70"

Components:
m1 m2 ρ θ Year
AB 7.3 8.0 11.0" 294° 2015
120mm f/5, 50x, Bortle 6, SQM-L 19.3
Both components well seen with noticeable difference in brightness.

STF3042 (**)

Name: STF3042
Type: **
Constellation: And
Coordinates: 23h51m52.40s / +37°53'28.40"

Components:
m1 m2 ρ θ Year
7.6 7.8 5.8" 87° 2017
55mm f/9.1, 25x, Bortle 7, SQM-L 19.0
Split, tight, nearly equally bright.

STF3050 (**)

Name: STF3050
Type: **
Constellation: And
Coordinates: 23h59m29.33s / +33°43'26.90"

Components:
m1 m2 ρ θ Year
AB 6.5 6.7 2.5" 342° 2018
55mm f/9.1, 83x, Bortle 6, NELM 5.0+, SQM-L 19.1
At 83x seen as '8'. From 100x to 166x seen as '8', temporarily visible with space between.

70mm f/5.7, 100x
Wonderful double star. Easy to split with slight difference in brightness.

STFA1 (**)

Name: STFA1
Type: **
Constellation: And
Coordinates: 00h46m24.34s / +30°56'33.50"

Components:
m1 m2 ρ θ Year
AB 7.2 7.4 48.0" 46° 2017
B 40mm, 8x, Bortle 7, SQM-L 19.0
Large distance with visible difference in brightness. I used a tripod.

STT509 (**)

Name: STT509
Type: **
Constellation: And
Coordinates: 23h50m30.87s / +43°25'09.40"

Components:
m1 m2 ρ θ Year
8.1 9.9 5.5" 105° 2016
102mm f/11, 125x, Bortle 6-, SQM-L 19.0
Easy to separate with a clear difference in brightness. The fainter companion appeared only as a tiny, faint, well detached star. At a distance of about 20 arc minutes to the east is the much tighter double star BU 728.

STTA11 (**)

Name: STTA11
Type: **
Constellation: And
Coordinates: 01h07m09.16s / +38°39'01.70"

Components:
m1 m2 ρ θ Year
AB-C 7.6 8.8 59.3" 164° 2014
152mm f/5.9, 22x, Bortle 6, SQM-L 19.3
Pretty wide pair with moderate difference in brightness. At 69x the primary component appeared slightly orange, BC rather grayish.

STTA17 (**)

Name: STTA17, BKO10
Type: **
Constellation: And
Coordinates: 01h24m30.85s / +39°01'30.30"

Components:
m1 m2 ρ θ Year
STTA17 AB 8.0 9.8 35.4" 101° 2015
STTA17 AC 8.0 8.5 134.9" 347° 2014
STTA17 CD 8.5 9.8 68.9" 279° 2015
STTA17 CE 8.5 13.3 81.2" 14° 2015
BKO10 AF 8.0 11.2 141.7" 270° 2015
152mm f/5.9, 22x, Bortle 6, SQM-L 19.3
The components A-D and F easily visible as a rather conspicuous group with comparatively large distances. I didn't pay attention to the component E. No brighter stars in the immediate vicinity. The pair AB and CD are very similar; CD a bit wider with opposite position angle. Very nice multiple star also for smaller telescopes.