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Proper Name	None
Bayer Designation	Tau Boötis
Flamsteed Number	4 Boötis
HR (BSC)	5185
HD	120136
Constellation	Boötes
Right Ascension	13h 47m 16s
Declination	+17° 27' 25"
Distance	51 light years 16 parsecs
Magnitude	Apparent: +4.48 Absolute: +3.51
Spectral Class	F6IV-V bright yellow subgiant
Planets in this system	Tau Boötis A b, gas giant There are unconfirmed indications of a possible second planet in this system
Optimum Visibility	April / May

Imagery provided by Aladin sky atlas

A variable F-type star in the southern parts of Boötes, not far from the bright star Arcturus. Tau Boötis is probably best known for having a giant planet, some six times the mass of Jupiter, in close orbit around it.

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