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Gamma Andromedae
Sign in to saveAlso known as 57 Andromedae, 57 And, γ And, γ Andromedae, Almach
multiple star system in the constellation Andromeda
In the Vinony graph
Vinony's link graph records 356 inbound references to Gamma Andromedae, and connects out to star system, minute and second of arc and year.
It sits within the topics Andromeda (constellation), A-type main-sequence stars and Bayer objects.
Vinony links it to 37 Wikipedia language editions.
Key facts
- Constellation
- Andromeda
- Right ascension
- 02 03 53.95229
- Declination
- +42 ° 19 ′ 47.0223 ″
- Spectral type
- K2+IIb
- U b color index
- +1.58
- B v color index
- +1.37
- R i color index
- +0.68
via Wikipedia infobox
Wikidata facts
- Constellation
- Andromeda
- Radius
- 80
- Image
- Almach double star.jpg
Show 12 more facts
- declination component of proper motion
- -50.85
- right ascension component of proper motion
- 43.08
- declination
- 42.329728424
- right ascension
- 30.974801207
- parallax
- 8.30
- radial velocity
- -11.50
- apparent magnitude
- 2.10
- catalog code
- γ And
- epoch
- J2000.0
- spectral class
- K3II+B9.5V+A0V
- luminosity
- 2.000
- absolute magnitude
- -2.9
via Wikidata · CC0
~5 min read
Encyclopedic overview
Gamma Andromedae is a multiple star system in the northern constellation of Andromeda. It is the third-brightest star in the constellation, after Alpheratz and Mirach. Its identifier is a Bayer designation that is Latinized from γ Andromedae, and is abbreviated Gam And or γ And, respectively. The system has the proper name Almach, pronounced /ˈælmæk/. Based on parallax measurements, it is estimated to be about 390 light-years distant. The system is drifting closer to the Sun with a radial velocity of −11.7 km/s.
Observation
Excerpted from Wikipedia’s “Gamma Andromedae” article, available under the CC BY-SA 4.0 licence.