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| Abbreviation: Cep |
| English Name: The Cepheus King |
| Genitive: Alderamin, sometimes spelt Al Deramin. |
| Hemisphere: Northern Hemisphere |
| Location: Between the constellations of Cassiopeia and Draco. |
| Visible between latitudes: +90 and -10 degrees |
| Best season: Autumn |
| Seen in three seasons: Summer, Autumn & Winter |
| Best seen in: October (This constellation of Cepheus stays in the sky all the year.) |
| Seen between: August and December |
| Right Ascension (RA): 22 hour |
| Declination (DEC): +70 degrees |
| Area (square degrees): 588 (27th) |
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Cepheus (The Cepheus King)
- This far northern constellation, almost to the North Celestial Pole (NCP), represents a King but its helping shape makes easy to locate as a house pattern.
o - In the sky, a northward always means toward the sky north pole, or toward Polaris. So on the right of the roof of the house in Cepheus is pointing mostly north.
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Messier Objects in Cephus
| No Messier objects in Cepheus. |
Other objects in Cepheus
| Select Catalog | No of Objects |
| Barnard (B) | 29x objects |
| Caldwell (C) | 4x objects |
| Collinder (Cr) | 16x objects |
| New General Catalogue (NGC) | 36x objects |
| Index Catalogue (IC) | 10x objects |
| Sharpless (Sh2) | 31x objects |
Features of Interest
- NGC 188 – Open Cluster, also known as Caldwell 1 (C01), very close to North Celestial Pole (NCP), under five degrees away.
o - NGC 7023 – The Iris Nebula, also known as Caldwell 4 (C04), is a bright reflection nebula – actually the cluster within the nebula; LBN 487.
o - NGC 6946 – The Firework Galaxy, also known as Caldwell 12 (C12), face-on spiral galaxy with colourful relating to a firework by the births and deaths of brilliant massive stars in the astrophotography.
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Named Stars
- Alderamin (Alpha Cep)
- Alfirk (Beta Cep)
- Alrai (Gamma Cep)
- Herschel’s “Garnet Star” (Mu Cep)
- Alkurhah (Xi Cep)
- Al Kalb al Rai (Rho 2 Cep)
- more list of stars in Cepheus
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Planetarium / Constellation Map
| Live constellation visible from the UK :- Planetarium (Cepheus) | Best Seen in: October | Seen between: August and December |
IAU Sky Chart: Cepheus
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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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