Achernar (star)

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Achernar A
Spectral B6 Vep
Type Main Sequence
Multiple Binary
Luminosity 3150 LSol
Absolute magnitude -2.77
Mag Terra 0.46
Temperature 10,000 - 20,000° K
Mass 6.7 MSol
Radius 7.3 x 11.4 RSol
Achernar B
Spectral A1-A3 V
Type Main Sequence
Luminosity LSol
Absolute magnitude
Mag Terra 0.46
Temperature ° K

The star Achernar (also spelled Achenar and otherwise known as Alpha Eridani) is a binary system composed of a hot blue main sequence star of spectral classification B6 orbited by a smaller blue-white main sequence star of spectral type A.

Description (Specifications)[edit]

  • Achernar A has an unusually rapid rotational velocity, causing it to become oblate in shape. It is one of the least spherical stars in Galaxias.
  • Achernar B orbits Achernar A at a distance of 12.3AU with an orbital period of about 14.5 years.

The Achernar star system lies approximately 42.8pc from Terra, and is located in a Rimtrailing/Trailing direction from Terra at bearing 290.8o Galactic Longitude and -58.8o South Galactic Latitude.

History & Background (Dossier)[edit]

Despite the similarity in name, Achernar is NOT the primary star of the world Archernar/Orichalc (Alpha Crucis 0719), which orbits a yellow-white giant star of classification G4 III.

  • Achernar may or may not have lent its name to the slightly differently spelled world of Archernar which lies in the same sector.

Image Repository[edit]

TravellerMap (T5SS):

References & Contributors (Sources)[edit]

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