Achird

Achird (η Cassiopeiae) is a yellow-white main-sequence star in the constellation Cassiopeia. With an apparent magnitude of 3.44 it is the 271st-brightest star in the night sky, and it is about 19 light-years from Earth.

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

ConstellationCassiopeia
Designationη Cassiopeiae (Eta Cassiopeiae), HR 219
Apparent magnitude3.44 (271st brightest)
Spectral typeF9V+dM0
Coloryellow-white (B−V 0.57)
Distanceabout 19 light-years
Right ascension0 h 49.1 min
Declination+57.82°
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 Achird

Achird is in Cassiopeia. From 40° N it never sets; it is highest in the north, about 72° up. From 35° S it stays below the horizon. Nearby bright stars: Schedar (2° away), Caph (5° away) and Almach (19° away).

Cassiopeia constellation →

Other named stars in Cassiopeia

SchedarCaphRuchbahSeginFuluCastula

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