Difference between revisions of "Achernar (star)"
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| − | The star [[Achernar (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'''. | + | The [[Star|star]] [[Achernar (star)|Achernar]] (also spelled '''Achenar''' and otherwise known as '''Alpha Eridani''') is a binary system composed of a hot blue main sequence [[Star|star]] of spectral classification '''B6''' orbited by a smaller blue-white main sequence [[Star|star]] of spectral type '''A'''. |
== Description (Specifications) == | == Description (Specifications) == | ||
| − | * '''Achernar A''' has an unusually rapid rotational velocity, causing it to become oblate in shape. It is one of the least spherical | + | * '''Achernar A''' has an unusually rapid rotational velocity, causing it to become oblate in shape. It is one of the least spherical [[Star|star]]s in [[Galaxias]]. |
* '''Achernar B''' orbits Achernar A at a distance of 12.3<small>AU</small> with an orbital period of about 14.5 years. | * '''Achernar B''' orbits Achernar A at a distance of 12.3<small>AU</small> 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 290.8<sup>o</sup> Galactic Longitude and -58.8<sup>o</sup> South Galactic Latitude. | + | The '''Achernar''' [[Star|star]] system lies approximately 42.8pc from [[Terra]], and is located in a Rimtrailing/Trailing direction from [[Terra]] at bearing 290.8<sup>o</sup> Galactic Longitude and -58.8<sup>o</sup> South Galactic Latitude. |
== History & Background (Dossier) == | == History & Background (Dossier) == | ||
| − | Despite the similarity in name, '''Achernar''' is ''NOT'' the primary star of the world {{World|Archernar|Alpha Crucis|Orichalc|0719}}, which orbits a yellow-white giant star of classification '''G4 III'''. | + | Despite the similarity in name, '''Achernar''' is ''NOT'' the primary [[Star|star]] of the world {{World|Archernar|Alpha Crucis|Orichalc|0719}}, which orbits a yellow-white giant [[Star|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. | * '''Achernar''' may or may not have lent its name to the slightly differently spelled world of ''Archernar'' which lies in the same sector. | ||
Revision as of 12:25, 4 August 2016
| 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)
- 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)
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.
References & Contributors (Sources)
| This article has metadata. |
This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.
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This page uses content from Wikipedia. The original article was at NAME STAR NAME. The list of authors can be seen in the NAME&action=history page history. The text of Wikipedia is available under the Commons Attribution-ShareAlike 3.0 Unported License. |
- External Link: SIMBAD @ University of Strasbourg: [1]