Alhena (star)

Alhena
Spectral	A1.5 IV
Type	Subgiant
Multiple	Binary
Luminosity	123 LSol
Absolute magnitude
Mag Terra	1.915
Temperature	9260° K
Mass	2.81 MSol
Radius	3.3 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 196.8^o Galactic Longitude and +04.5^o North Galactic Latitude.

History & Background (Dossier)

Alhena is the primary star of the world Alhena/Kursa (Aldebaran 2818).

Image Repository

TravellerMap (T5SS):
[1]

References & Contributors (Sources)

This article has metadata.

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.

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 Far Future Enterprises or by permission of the author. The page history lists all of the contributions.

• EXTERNAL LINK: SIMBAD @ University of Strasbourg: [2]
• Author & Contributor: WHULorigan