Tau Ceti (star)

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Tau1 Ceti
Spectral G8.5 V
Type Main Sequence
Luminosity 0.52 LSol
Absolute magnitude 5.69
Mag Terra 3.5
Temperature 5345° K
Mass 0.783 MSol
Radius 0.793 RSol
Companion Tau2 Ceti (?)
Tau2 Ceti
Spectral M6-9 V
Type Main Sequence
Luminosity LSol
Absolute magnitude
Mag Terra 13.1
Temperature ° K

The star Tau Ceti (otherwise known as Durre Menthor) is an older low-metallicity yellow-orange main sequence star of spectral type G8.5.

  • A dim optical companion (Tau2) near Tau Ceti has been observed. It may be gravitationally bound, but is more likely to be a coincidental near star.

Description (Specifications)[edit]

Tau Ceti's habitable zone is located at a radius of approximately 0.55–1.16AU.

  • There is approximately ten times as much dust surrounding Tau Ceti as is present in the Sol System.
  • Because of this debris disk, planets orbiting Tau Ceti experience far more impact events than Terra.
  • A "companion star" resides nearby the Tau Ceti system. If a real gravitationally-bound companion (which is uncertain), Tau2 is a low mass pinkish-orange M-dwarf (cooler than Proxima Centauri) that lies ~325AU from Tau1 and takes ~6000 years to orbit.

The Tau Ceti star system is approximately 3.7pc from Terra, and is located in a Spinrimward/Rimward direction from Terra at bearing 173.1o Galactic Longitude and -73.4o South Galactic Latitude.

  • The nearest neighbor of the Tau Ceti system is Luyten 726-8, which lies only 0.88 pc away within the same hexgrid.

History & Background (Dossier)[edit]

Tau Ceti is the primary star of the world Iilike/Sol (Solomani Rim 1429).

References & Contributors (Sources)[edit]

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This article was copied or excerpted from the following copyrighted sources and used under license from Far Future Enterprises or by permission of the author.

Smallwikipedialogo.png This page uses content from Wikipedia. The original article was at Tau_Ceti. 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]
  • External Link: STARS (University of Illinois - Prof. Jim Kaler): [3]