Mirach

Mirach (β Andromedae) is a red supergiant star in the constellation Andromeda. With an apparent magnitude of 2.06 it is the 57th-brightest star in the night sky, and it is about 199 light-years from Earth.

Finder chart showing where Mirach is in the constellation Andromeda
Mirach (circled) in Andromeda, with the surrounding constellations and bright stars.
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Facts

ConstellationAndromeda
Designationβ Andromedae (Beta Andromedae), HR 337
Apparent magnitude2.06 (57th brightest)
Spectral typeM0+IIIa
Colorred (B−V 1.58)
Distanceabout 199 light-years
Right ascension1 h 9.7 min
Declination+35.62°
Best monthNovember (at about 9 pm)

Sources: star positions, magnitudes and colors from the Yale Bright Star Catalogue; constellation boundaries and star names from the IAU; areas and distances from Wikidata; stick figures by M. van der Sluys. How the maps are made.

How to find Mirach

Mirach is in Andromeda. From 40° N it is highest in the south in November evenings, about 86° above the horizon. From 35° S it reaches about 19° in the north. Nearby bright stars: Almach (12° away), Alpheratz (14° away) and Hamal (17° away).

Andromeda constellation →

Other named stars in Andromeda

AlpheratzAlmachNembusTitawinAdhil

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