Difference between revisions of "Alhena (star)"
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| − | ''' | + | {{InfoboxStar |
| − | + | |name=Alhena | |
| + | |image= | ||
| + | |spectral=A1.5 IV | ||
| + | |type=Subgiant | ||
| + | |multiple=Binary | ||
| + | |radius= 3.3 R<sub>Sol</sub> | ||
| + | |rrank= | ||
| + | |lum= 123 L<sub>Sol</sub> | ||
| + | |mag= | ||
| + | |lref= 1.915|lrworld=[[Terra (SR 1827) (world)|Terra]] | ||
| + | |lref2= |lrworld2=[[Vland (world)|Vland]] | ||
| + | |temp= 9260 K | ||
| + | |mass= 2.81 M<sub>Sol</sub> | ||
| + | |mrank= | ||
| + | |companion=Alhena B | ||
| + | }} | ||
| + | |||
| + | |||
| + | The star [[Alhena (star)|Alhena]] (also variously known as '''Gamma Geminorum''' and '''Almeisan''') is a binary star system whose primary star is a blue-white subgiant of spectral classification '''A1.5''' which has evolved off the main sequence as its core hydrogen has become exhausted. | ||
== Description (Specifications) == | == Description (Specifications) == | ||
| − | + | The '''Alhena''' star system is a binary system with an orbital period of 12.6 years. | |
| + | * The orbit of the B-component about '''Alhena A''' has a high eccentricity of e=0.89. | ||
| + | |||
| + | The '''Alhena''' star system lies approximately 33.5pc from Terra, and is located in a Rimward/Rimspinward direction from Terra at bearing 196.8<sup>o</sup> Galactic Longitude and +04.5<sup>o</sup> North Galactic Latitude. | ||
== History & Background (Dossier) == | == History & Background (Dossier) == | ||
| − | + | '''''<small>(Non-Canonical)</small>''''': '''Alhena''' is the primary star of the world {{World|Alhena|Aldebaran|Kursa|2818}}. | |
| − | '''''<small>(Non-Canonical)</small>''''' | ||
== References & Contributors (Sources) == | == References & Contributors (Sources) == | ||
{{metadata}} | {{metadata}} | ||
| − | |||
| − | |||
{{Sources | {{Sources | ||
Revision as of 18:03, 17 June 2016
| Alhena | |
| Spectral | A1.5 IV |
| Type | Subgiant |
| Multiple | Binary |
| Luminosity | 123 LSol LSol |
| Absolute magnitude | |
| Mag Terra | 1.915 |
| Temperature | 9260 K° K |
| Mass | 2.81 MSol MSol |
| Radius | 3.3 RSol RSol |
| Companion | Alhena B |
The star Alhena (also variously known as Gamma Geminorum and Almeisan) is a binary star system whose primary star is a blue-white subgiant of spectral classification A1.5 which has evolved off the main sequence as its core hydrogen has become exhausted.
Description (Specifications)
The Alhena star system is a binary system with an orbital period of 12.6 years.
- The orbit of the B-component about Alhena A has a high eccentricity of e=0.89.
The Alhena star system lies approximately 33.5pc from Terra, and is located in a Rimward/Rimspinward direction from Terra at bearing 196.8o Galactic Longitude and +04.5o North Galactic Latitude.
History & Background (Dossier)
(Non-Canonical): Alhena is the primary star of the world Alhena/Kursa (Aldebaran 2818).
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.
- TravellerMap (Unofficial): [1]
|
This page uses content from Wikipedia. The original article was at Alhena. The list of authors can be seen in the page history. The text of Wikipedia is available under the Commons Attribution-ShareAlike 3.0 Unported License. |
- External Link: SIMBAD @ University of Strasbourg: [2]