61 Cygni (star)

61 Cygni
Spectral	K5 V / K7 V
Type	Main Sequence
Multiple	Binary
Luminosity	0.153Sol / 0.085Sol LSol
Absolute magnitude	7.5
Temperature	4525K / 4075K° K
Mass	0.70Sol / 0.63Sol MSol
Radius	0.660Sol / 0.595Sol RSol
Companion	61 Cygni B

The 61 Cygni star system (also kown as Bessel's Star or Piazzi's Flying Star) is a binary star system consisting of a pair of K-type dwarf stars (K5 V / K7 V) that orbit each other in a period of about 659 years at an average separation of 84.0AU. The orbital eccentricity of 0.48 means that the two stars are separated by about 44AU at periastron and 124AU at apastron.

61 Cygni A is a typical BY Draconis variable star designated as V1803 Cyg while 61 Cygni B is a flare type variable star named HD 201092 with their magnitudes varying 5.21 V and 6.03 respectively.

The habitable zone for 61 Cygni A lies at approximately 0.26–0.58 AU, and for 61 Cygni B, the habitable zone lies at approximately 0.24–0.50.

The 61 Cygni star system is approximately 3.5pc from Terra, and is located in a Coreward/Corespinward direction from Terra at bearing 082.3^o Galactic Longitude and -05.82^o South Galactic Latitude.

61 Cygni B is the primary star of the world Nusku/Sol (Solomani Rim 1822). The Vilani name for the star is Anlagar

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References & Contributors (Sources)

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.

• Travellermap [1]
• Classic Traveller: Solomani (Alien Module)
• GURPS Traveller: Interstellar Wars
• GURPS Traveller: Rim of Fire

This page uses content from Wikipedia. The original article was at 61_Cygni. 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]

This page uses content from Wikipedia. The original article was at 61_Cygni. 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.