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a variable star in the constellation of Andromeda. It is classified as a semiregular variable pulsating giant star, and varies from an apparent visual magnitude of 14.5 at minimum brightness to a magnitude of 9.9 at maximum brightness, with a period of approximately 238.3 days. [17] [18] Y And: 10112: 01 h 39 m 36.89 s +39° 20′ 35″ 10.39 ...
An Arab constellation called "al-Hut" (the fish) was composed of several stars in Andromeda, M31, and several stars in Pisces. ν And, μ And, β And, η And, ζ And, ε And, δ And, π And, and 32 And were all included from Andromeda; ν Psc, φ Psc, χ Psc, and ψ 1 Psc were included from Pisces. [20] [21]
Stars; Common name Bayer Flamsteed; Alpheratz or Sirrah: α And: 21 And Mirach: ... Andromeda (constellation) * List of stars in Andromeda; 0–9. 2 Andromedae; 3 ...
List of the largest known stars in Andromeda and Triangulum galaxies Star name Solar radii (Sun = 1) Galaxy Method [a] Notes Theoretical limit of star size (Andromeda Galaxy) ≳1,750 [9] L/T eff: Estimated by measuring the fraction of red supergiants at higher luminosities in a large sample of stars. Assumes an effective temperature of 3625 K.
The star is in almost all depictions part of the main asterism of Pegasus and Andromeda. [18] In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) [19] to catalog and standardize proper names for stars. The WGSN's first bulletin of July 2016 [20] confirmed Alpheratz as the name for the main star.
In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN) [2] to catalog and standardize proper names for stars. The WGSN's first bulletin, dated July 2016, [3] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars adopted by the IAU Executive Committee ...
All stars but one can be associated with an IAU (International Astronomical Union) constellation. IAU constellations are areas of the sky. Although there are only 88 IAU constellations, the sky is actually divided into 89 irregularly shaped boxes as the constellation Serpens is split into two separate sections, Serpens Caput (the snake's head) to the west and Serpens Cauda (the snake's tail ...
51 Andromedae, abbreviated 51 And and formally named Nembus / ˈ n ɛ m b ə s /, [8] is the 5th brightest star in the northern constellation of Andromeda, very slightly dimmer than the Andromeda Galaxy also being of 4th magnitude. It is an orange K-type giant star with an apparent magnitude of +3.57 and is about 169 light-years from the Earth ...