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Cepheus Constellation
Constellation Cepheus

Cepheus, the King of Ethiopia (Cep)

The constellation of Cepheus, the King of Ethiopia, is best viewed in the Fall season during the month of October for mid-northern latitudes. It's brightest star is Alderamin at magnitude 2.45. The boundary of the Cepheus constellation contains 3 stars that host known exoplanets.

The naked eye can generally see up to magnitude 6 (magnitude 8 with perfect eyes under ideal super dark-sky conditions).

      1. Meaning:
      2. King of Ethiopia
      1. Genitive:
      2. Cephei
      1. Abbreviation:
      2. Cep
      1. Constellation Family:
      2. Perseus
      1. Best Viewing Month*:
      2. October
      1. Circumpolar** (N=northern, S=southern):
      2. N
      1. Right Ascension (avg):
      2. 22h 25m
      1. Declination (avg):
      2. 72° 34'
      1. Brightest Star:
      2. Alderamin (2.45m)
      1. Exoplanet Host Stars:
      2. 3
      1. Triple Stars:
      2. 4
      1. X-ray Stars:
      2. 2 binaries stars
      1. Pulsars:
      2. 2
      1. Other:
      2. Barium star; 5 protostars

    * For southern latitudes, flip the season listed. For example, if a constellation is listed as best viewed in the summer in the month of July, in the southern hemisphere the constellation would be best viewed in the winter in January and would be upside-down.

    ** Circumpolar constellations are visible year-round in the hemisphere listed.

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