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Tejat

Tejat Posterior, Calx, Pishpai, Mu Geminorum, 13 Geminorum

Red Star in Gemini

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Proper Names	Tejat, Tejat Posterior, Calx, Pishpai
Bayer Designation	Mu Geminorum
Flamsteed Number	13 Geminorum
HR (BSC)	2286
HD	44478
Constellation	Gemini
Right Ascension	6h 22m 58s
Declination	+22° 30' 49"
Distance	232 light years 71 parsecs
Magnitude	Apparent: +2.9 Absolute: -1.4
Spectral Class	M3IIIab red giant
Optimum Visibility	January
Notes	Sometimes known as Tejat Posterior to distinguish it from Propus (or Tejat Prior) to the west, the primary star of this system is a huge red giant very late in its life cycle. The star has expanded to reach nearly one Astronomical Unit in diameter.

The Galactic position and direction of Tejat relative to Earth's Sun. Note that, at this extreme scale, the two stars are effectively in the same place.

A triple system in Gemini, more than 230 light years from Earth, of which the main component is a red giant that slowly fluctuates in brightness.

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