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| Abbreviation: Cas |
| English Name: The Cassiopeia Queen |
| Genitive: Schedar, sometimes spelt Shedar or Shedir. |
| Hemisphere: Northern Hemisphere |
| Location: Between the constellations of Andromeda and Cephus. |
| Visible between latitudes: +90 and -20 degrees |
| Best season: Autumn |
| Seen in three seasons: Summer, Autumn and Winter |
| Best seen in: November |
| Seen between: Circumpolar (This constellation of Cassiopeia stays in the sky all the year.) |
| Right Ascension (RA): 01 hour |
| Declination (DEC): +60 degrees |
| Area (square degrees): 598 (25th) |
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Cassiopeia (The Cassiopeia Queen)
- The five leading stars make up a W-shape or M-shape pattern, on the opposite side of the Big Dipper (Ursa Major).
o - Easy to recognise due to it being helped by the `W` shape, formed by five bright stars.
o - Cassiopeia contains several Open Clusters resolvable in binoculars.
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Messier Objects in Cassiopeia
| M52 – Open Cluster, visible with binoculars – covering an area about one-third the size of Full Moon, although a telescope is needed to see some individual stars. (photo) |
| M103 – There are about 40 member stars within M103; two of which have magnitude +10.5, and magnitude +10.8 red giant, which is the brightest within the cluster. |
Other objects in Cassiopeia
| Select Catalog | No of Objects |
| Barnard (B) | 0x object |
| Caldwell (C) | 6x objects |
| Collinder (Cr) | 30x objects |
| New General Catalogue (NGC) | 41x objects |
| Index Catalogue (IC) | 17x objects |
| Sharpless (Sh2) | 42x objects |
Features of Interest in Capricornus
- NGC 457 – Open Cluster; appearance has been compared to an owl’s eyes pattern, with two brightest stars marking the owl’s eyes.
- NGC 663 – also Known as Caldwell 10 (C10) is young Open Cluster of about 400 stars.
- Two galaxies are in Cassiopeia by Andromeda to the south; NGC 147; also known as Caldwell 17 (C17), and NGC 185; also known as Caldwell 18 (C18).
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Named Stars
- Schedar (Alpha Cas) (sometimes spelt Shedar or Shedir)
- Caph (Beta Cas)
- Ruchbah (Delta Cas)
- Segin (Epsilon Cas)
- Achird (Eta Cas)
- Marfak (Theta Cas)
- Marfak (Mu Cas)
- more list of stars in Cassiopeia
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Planetarium / Constellation Map
| Live constellation visible from the UK :- Planetarium (Cassiopeia) | Best Seen in: November | Seen between: Circumpolar |
IAU Sky Chart: Cassiopeia
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Constellations – Visible from the UK
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Parts visible from the UK
| Antlia | Columba | Eridanus | Fornax | Microscopium | ||
| Piscis Austrinus | Puppis | Pyxis | Sagittarius | Scorpius | ||
| Sculptor |
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Constellations: Southern Celestial Hemisphere
…..– never seen from the UK
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Back to …Constellation Names
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