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Tau Geminorum

46 Geminorum

Orange giant in Gemini

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Proper Name	None
Bayer Designation	Tau Geminorum
Flamsteed Number	46 Geminorum
HR (BSC)	2697
HD	54719
Constellation	Gemini
Right Ascension	7h 11m 8s
Declination	+30° 14' 43"
Distance	392 light years 120 parsecs
Magnitude	Apparent: +4.38 Absolute: -0.52
Spectral Class	K2III orange giant
Planets in this system	Tau Geminorum b, probable brown dwarf
Optimum Visibility	January
Notes	Tau Geminorum is a fourth-magnitude orange giant lying westward of Castor in Gemini, as seen from Earth. It has a massive companion object, probably a brown dwarf, with more than twenty times the mass of Jupiter, that orbits the star at a distance of 1.17 Astronomical Units.

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