How many stars: -- Constellation: AND

Constellation:

Andromeda, the Woman Chained

In Greek myths, Andromeda was the daughter of Cepheus and Cassiopeia. When Cassiopeia boasted that she was more beautiful than the Nereids (sea nymphs), Andromeda was chained to a rock and attacked by a sea monster. This is a large area of sky, filling the space between Pegasus and Cassiopeia, stretching to Perseus. This constellation has a little of everything. The Andromeda Galaxy and its satellites are must-see objects. It has bright stars, binaries, even Upsilon, one of the first stars where multiple planets were detected.

Chart:

Original 1875 boundaries:
(225200,+3430) TO (225200,+5230) TO (232000,+5230) TO (232000,+5000) TO (233500,+5000)
 TO (233500,+4800) TO (001000,+4800) TO (001000,+4600) TO (005200,+4600) TO (005200,+4800)
 TO (010700,+4800) TO (010700,+5000) TO (012200,+5000) TO (014000,+5000) TO (014000,+4700)
 TO (020230,+4700) TO (020230,+5030) TO (023100,+5030) TO (023100,+3642) TO (020000,+3642)
 TO (020000,+3500) TO (012430,+3500) TO (012430,+3300) TO (004300,+3300) TO (004300,+2345)
 TO (005100,+2345) TO (005100,+2100) TO (000830,+2100) TO (000830,+2200) TO (000400,+2200)
 TO (000400,+2800) TO (000000,+2800) TO (000000,+3120) TO (234500,+3120) TO (234500,+3205)
 TO (233000,+3205) TO (233000,+3430)

Star Details:

Name Mag mult Info motion LY Pos
Spectral type B8IVmnp... alpha And 2.07Known variable star Multiple star Common Name: Alpheratz, Sirrah. Also known as delta Pegasi.
[TEXT]
Proper motion > 0.2 arcsecond per year135, -162, -12 Just 26 to 100 light years away97 000823.3 +290526
Spectral type M0IIIvar beta And 2.07 Multiple star Names: MIRACH; Merach; Mirac; Mirak; (al Mizar). Ultraviolet FeII emission. Also classified B9III [YBS].
Multiple star BAR 1: mag 2.1 and 14.4, 27.0" PA 202 (1934). M1III
Proper motion > 0.2 arcsecond per year175, -112, 0 101 to 250 light years away199 010943.9 +353714
Spectral type B8V gamma-1 And 2.10 Multiple star Multiple star STF 205. CPM with HR 604. Names: ALMAAK; Almach; Alamak; Almak; Almaach.
[flags]
43, -50, -12 251 to 500 light years away354 020354.0 +421947
Spectral type K3III... delta And 3.27Suspected variable star Multiple star Multiple star BU 491: mag 3.2 and 12.4, 29.1" PA 299 (1997). K3III 115, -83, -7 101 to 250 light years away101 003919.7 +305140
Spectral type K3III 51 And 3.59   Also known as Upsilon Per, but fell outside IAU boundaries of Perseus [YBS]. 60, -112, 16 101 to 250 light years away173 013759.6 +483742
Spectral type B6pv SB omicron And 3.62Known variable star Multiple star Spectroscopic binary: at least 3 stars involved. In reflection nebula; probably but not certainly associated. Shell star.
Gamma Cas type variable, range 3.6- 3.8V , irregular.
[TEXT]
22, 0, -14 Over 500 light years away692 230155.3 +421934
Spectral type G8III-IV lambda And 3.81Known variable star Multiple star Spectroscopic binary: 20.5212 days. Radio binary. Variable: RS CVn type: 3.69 - 3.97V, 4.74 - 5.13B, 54.20d.
RS CVn type variable, range 3.7- 4.0V in 54.2 days.
Multiple star STT 600: mag 3.8 and 13.3, 47.5" PA 199 (1908). G8III-IV
[TEXT]
Proper motion > 0.2 arcsecond per year159, -421, 7 Just 26 to 100 light years away84 233733.8 +462729
Spectral type A5V mu And 3.86 Multiple star Multiple star HJ 1057: mag 3.9 and 12.9, 49.8" PA 297 (1999). A5V 152, 36, 8 101 to 250 light years away136 005645.2 +382958
Spectral type K1IIe zeta And 4.08Known variable star Multiple star CaII emission.
Beta Lyrae type eclipsing variable, range 3.9- 4.1V in 17.7695 days.
Multiple star BUP 9: mag 4.1 and 15.3, 32.6" PA 0 (1959). K1IIe
-101, -81, -24 101 to 250 light years away181 004720.3 +241602
Spectral type F8VSpectroscopic binary upsilon And 4.10 Multiple star Both visual companions probably optical. Spectroscopic binary: 197.9 days, K 1.8k/s, V0 -27.7k/s, asini 4.79. Orbit questioned by Morbey and Griffin (1987, ApJ, 317, 343) [YBS].
Multiple star BUP 23: mag 4.1 and 12.6, 114.0" PA 128 (1909). F8V
Proper motion > 0.2 arcsecond per year-172, -381, -28 Just 26 to 100 light years away43 013647.8 +412420

10 stars shown. View all.

Multiple stars:

Star Pair ID Sep PA Year Mags Notes
alpha And Aa MKT 11 0" 241 1989 2.2 - 4.2 B8IVp
alpha And Aa-B H 5 32 89.3" 284 2000 2.2 - 11.1 B8IVpMnHg
theta And AB CHR 123 0.1" 135 1996 4.6 - 0.0 A2V
28 And AB BU 1095 2.4" 6 1948 5.3 - 13.1 A7III
28 And AC BU 1095 136.6" 130 1997 5.3 - 11.4  
HR 122 AB HJ 5451 55.3" 85 2005 6.0 - 9.3 K1III
pi And Aa MKT 1 0" 102 1992 4.4 - 0.0 B5V
pi And Aa-B H 5 17 35.7" 173 2004 4.3 - 7.1 B5V
pi And Aa-C H 5 17 55.6" 357 1997 4.4 - 13.0 B3
delta And AB BU 491 29.1" 299 1997 3.2 - 12.4 K3III

10 pairs shown. View all.

Variable stars:

Variable Mags Range Period Type Notes
omi And 3.6 - 3.8 V 0.2 ... GCAS, Gamma Cas type variable B6IIIpe+A2p.
lam And 3.7 - 4.0 V 0.3 54.2 RS, RS CVn type variable G8III-IV.
zet And 3.9 - 4.1 V 0.2 17.7695 EB/GS/RS, Beta Lyrae type eclipsing variable K1II-III.
R And 5.8 - 14.9 V 9.1 409.33 M, Mira type variable S3,5e-S8,8e(M7e).

10 variables shown. View all.

Deep sky objects:

Image Name Type Mag Info size Pos

DSS2, scale 30'
M 31 Gx 3.5 The Andromeda Galaxy. A massive spiral galaxy which, with our own Milky Way, dominates the Local Group. The brightest galaxy in the northern skies, easily visible with the unaided eye from a dark location. Whole volumes have been written about it ... 200' x 80' 004244.3 +411609

DSS2, scale 30'
NGC 752 OC 5.7 V   50' 015741 +3747.1

DSS2, scale 3'
NGC 205 Gx 8.0 This is the further of the two satellites that always show up in photos of the Andromeda galaxy. It's a classic drawf elliptical, but does have two dark gas clouds near the 2x1.5' nucleus. 19' x 12' 004022.0 +414107

DSS2, scale 6'
M 32 Gx 8.2 This is the brightest of the satellites of the Andromeda galaxy, the one closest to its nucleus in photos. MCG gives 11'x7' overall size, 3'x3' nucleus. 11' x 7' 004221.9 +405157

DSS2, scale 6'
NGC 956 OC 8.9 V   8' 0232.4 +4439

DSS2, scale 6'
NGC 891 Gx 10.8 B A classic edge-on spiral with thick dust lanes. 2.09' x 0.52' 022232.90 +422045.8

DSS2, scale 3'
NGC 404 Gx 11.3 B A few minutes away from beta Andromedae. 1.67' x 1.67' 010927.02 +354304.7

DSS2, scale 3'
NGC 80 Gx 12.1 V Mag 13.7B (SIMBAD), 13.1 (NED). In group. 1.8' x 1.7' 002111.0 +222124

DSS2, scale 3'
IC 239 Gx 12.1 B   1.76' x 1.72' 023627.92 +385808.3

DSS2, scale 2'
NGC 252 Gx 12.5 V Double ring galaxy, NED type (R)SA(r)0+:. 1.5' x 1.1' 004801.5 +273729

10 objects shown. View all.

Notes on data shown (stars):

CREDITS & references