Alpha Ophiuchi (star)

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Rasalhague A
Spectral A5 III
Type Giant
Multiple Binary
Luminosity 25.3 LSol
Absolute magnitude +1.248
Mag Terra 2.07
Temperature 7,880o–8,050° K
Mass 2.4 MSol
Companion Rasalhague B
Rasalhague B
Spectral K6 V
Type Main Sequence
Multiple (Companion)
Luminosity LSol
Absolute magnitude
Temperature ° K
Mass 0.85 MSol

The star Rasalhague (also known as Alpha Ophiuchi) is a blue-white A5 III Giant star, orbited by a yellow-orange K6 V main-sequence dwarf companion with an orbital period of about 8.62 years.

Description (Specifications)[edit]

The primary has a very high rate of rotation, resulting in a bulge that causes the star's equatorial radius to be about 20% larger than its polar radius, giving the star the shape of an oblate spheroid. Because of this distorted shape, the poles have an effective temperature about 1,840 K greater than along the equator.

  • The Rasalhague star system is approximately 14.9pc from Terra, and is located in a Coreward/Corespinward direction from Terra at bearing 035.9o Galactic Longitude and +22.6o North Galactic Latitude.

History & Background (Dossier)[edit]

Rasalhague is the primary star of the world Depot/Vega (Solomani Rim 1911).

Image Repository[edit]

TravellerMap (T5SS):

References & Contributors (Sources)[edit]

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