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Eridanus Constellation
Constellation Eridanus the River Star Map

Eridanus, the River (Eri)  


The constellation of Eridanus, the River, is best viewed in Winter during the month of December. It's brightest star is Achernar at magnitude 0.46. The boundary of the Eridanus constellation contains 26 stars that host known exoplanets.

      1. Pronunciation:
      2. ih-RID-un-us
      1. Meaning:
      2. River
      1. Genitive:
      2. Eridani
      1. Abbreviation:
      2. Eri
      1. Constellation Family:
      2. Heavenly Waters
      1. Hemisphere:
      2. Southern
      1. Quadrant:
      2. SQ1
      1. Best viewing month*:
      2. December
      1. Right Ascension (avg):
      2. 3h 53m
      1. Declination (avg):
      2. -17° 59'
      1. Brightest star:
      2. Achernar  (0.46m)
      1. Stars with planets:
      2. 26
      1. Triple star systems:
      2. 1

    * 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 (and not at all in the opposite).