- Double Stars (And) -

And (31) Cep (13) CVn (3) Her (12) Ori (8) Tri (5)
Aql (9) Cet (1) Cyg (19) Leo (11) Peg (16) UMa (10)
Ari (8) CMa (1) Del (2) LMi (4) Per (18) UMi (1)
Aur (27) Cnc (7) Dra (8) Lyn (11) Psc (7) Vir (6)
Boo (8) Com (1) Equ (5) Lyr (8) Ser (3)
Cam (5) CrB (4) Eri (1) Mon (1) Sex (1)
Cas (17) Crv (1) Gem (19) Oph (1) Tau (11)

59 And (**)

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

Components:
m1 m2 ρ θ Year
6m0 6m7 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
6m0 6m8 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
9m6 9m8 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
9m0 9m5 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
9m0 9m5 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
9m4 9m6 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
7m3 8m3 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

AC14 (**)

Name: AC14
Type: **
Constellation: And
Coordinates: 01h28m19.28s / +42°46'56.00"

Components:
m1 m2 ρ θ Year
8m3 8m9 0.7" 93° 2018
152mm f/5.9, 300x
Immediately visible as a double star, almost separated with little difference in brightness.

BU483 (**)

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

Components:
m1 m2 ρ θ Year
AC 7m0 7m7 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 8m7 8m9 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
8m1 9m1 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
9m5 9m5 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
9m3 9m4 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
9m6 9m9 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
7m8 8m4 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
8m8 8m9 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
8m3 8m9 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
8m4 9m3 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 6m1 6m5 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.

152mm f/5.9, 300x
Split with little gap in between and little difference in brightness. Seeing was not really good.

STF104 (**)

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

Components:
m1 m2 ρ θ Year
8m0 9m8 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 grey-blueish.

STF108 (**)

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

Components:
m1 m2 ρ θ Year
6m5 9m6 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
8m3 8m6 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
8m2 9m3 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 2m3 5m0 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 7m3 8m0 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
7m6 7m8 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 6m5 6m7 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 7m2 7m4 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
8m1 9m9 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 7m6 8m8 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 greyish.

STTA17 (**)

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

Components:
m1 m2 ρ θ Year
STTA17 AB 8m0 9m8 35.4" 101° 2015
STTA17 AC 8m0 8m5 134.9" 347° 2014
STTA17 CD 8m5 9m8 68.9" 279° 2015
STTA17 CE 8m5 13m3 81.2" 14° 2015
BKO10 AF 8m0 11m2 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.