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Cepheus, King of Ethiopia Constellation

Cepheus (Pronounciation:Cee-fee-us, Abbrev:Cep, Latin:Cephei) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Cepheus takes up 587.787 sq. degrees of the night sky which equates to 1.42% of the night sky. The constellation gets its name as it name means King of Ethiopia . The constellation is one of the original constellations that was devised by the Ancient Greco-Egyptian astronomer Ptolemy who lived between 90 A.D. and 168 A.D.

Cepheus is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Cepheus is a northern hemispheric constellation which means it can't be seen easily or at all from the southern hemisphere.

The brightest star in Cepheus is Alderamin. There are 3 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site. There is a dedicated page for exoplanets in Cepheus. The current largest star so far identified in the constellation of Cepheus is RW Cephei. For a list of named stars, that is stars that don't start HD or HIP, please visit Cepheus Star List Page.

Cepheus Star and Deep Space Object Count

The number of stars that have been catalogued as part of the Hipparcos Star Catalogue from Cepheus is 1885. The number of stars that are of magnitude 6.0 or lower in the constellation is 95. The number of stars in the constellation that make up the outline is 5.

There are no deep space objects that were identified by Charles Messier in this constellation. There are 1 non-Messier deep space objects that are covered on this site and the list is below.

Stars of Interest

The nearest star to Earth is Kruger 60 which is roughly about 13.05 Light Years from the Earth. The nearest star to the Earth with an exoplanet is HIP 109384 which is about 182.83 Light Years. The furthest star that can be located in the constellation is HIP 104589 which is located about 326163.3 Light Years away from the Sun. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong.

The dimmest star that can be seen in Cepheus with the naked eye is HD 202987. The dim star has an apparent magnitude of 6. The dimmest star that a person is able to see with their naked eye is 6.0 magnitude based on the table in the reference. Ref: University of Michigan

The caveat of these stars are that they are catalogued on this site. If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.

Constellation Legend

Cepheus, was the king of Philistia ( Now Ethiopia ) whose wife Cassiopeia ordered their daughter to be sacrificed to the Cetus sea whale.

There are no major meteor showers that radiate from within this constellation.

Cepheus Facts

Is a Zodiac Sign No
Largest StarRW Cephei
Brightest StarAlderamin
Area587.787 sq. deg.
Percentage of Night Sky1.42%
Size Position27th
Hemisphere Northern
Site Exoplanet Count3
Meteor Shower Count5
Nearest StarKruger 60
Nearest Star with Exoplanet(s)HIP 109384
Dimmest StarHD 202987
Furthest StarHIP 104589
Bright Star Count95
Hipparcos Star Count1885
Main Star Count5
Messier Deep Space Object Count0
*Non-Messier Deep Space Object Count1
Ursa Minor

*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.

Cepheus Constellation Map

Cepheus Constellation Star Map

The map was generated using Night Vision, an awesome free application by Brian Simpson.

List of Deep Space Objects (Galaxies, Nebulas, Supernovas, etc) in Cepheus

NameTypeDistanceDeclinationRight Ascension
NGC 7822Nebula2,900 ly+67d 25` 17.000h 01m 08m 58
Wizard Nebula (NGC7380)Nebula7.2 k58:0622h 47h 0

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