Cassiopeia (constellation)

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List of stars in Cassiopeia
Abbreviation: Cas
Genitive: Cassiopeiae
Right ascension: 1 h
Declination: +60°
Area: 598 sq. deg. (25th)
Main stars: 5
Bayer/Flamsteed stars: 53
Stars known to have planets: 5
Bright stars: 4
Nearby stars: 7
Brightest star: α Cas (Schedar) (2.15m)
Nearest star: η Cas (Achird) ( ly)
Messier objects: 2
Meteor showers: Perseids
Bordering constellations: Camelopardalis
Visible at latitudes between +90° and −20°
Best visible at 21:00 (9 p.m.) during the month of November
Photographed Oct. 1st, 2004 from near N41° W73° by Randal J.

Cassiopeia is a constellation in the northern sky. It was named after a queen in Greek mythology called Cassiopeia. It looks like a letter W or M, with five bright stars. It has two very bright stars called ρ Cas and V509 Cas.

In 1572, a supernova called Tycho's Star, or SN 1572, was seen in Cassiopeia by many people.