Cassiopeia (constellation)
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.
 Click for larger image | |
| List of stars in Cassiopeia | |
| Abbreviation: | Cas |
| Genitive: | Cassiopeiae |
| Symbology: | |
| 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 Cepheus Lacerta Andromeda Perseus |
| Visible at latitudes between +90° and −20° Best visible at 21:00 (9 p.m.) during the month of November | |
In 1572, a supernova called Tycho's Star, or SN 1572, was seen in Cassiopeia by many people.
