Tau Centauri
Tau Centauri, Latinized from τ Centauri, is a solitary star in the southern constellation of Centaurus. It is visible to the naked eye with an apparent visual magnitude of +3.86. The distance to this star, based upon an annual parallax shift of 24.85 mas, is 131 light years. There is a 98% chance that it is a co-moving companion of Gamma Centauri; the two stars have an estimated separation of .

This is an A-type star with stellar classifications of A0 V or A1 IVnn, indicating it may be a main sequence star or a more evolved subgiant star. It is around 132 million years old and is spinning rapidly with a projected rotational velocity of 296.8 km/s. This is giving the star an oblate shape, with an estimated equatorial girth that is 30% larger than the polar radius. The star has an estimated 2.3 times the mass of the Sun and 2.2 times the Sun's radius.
Q1806983
Latinized
UNK
Q523
star
Concept
Q8928
constellation
Concept
Q8844
Centaurus
CEL
Q124313
apparent visual magnitude
Concept
Q906561
parallax shift
Concept
Q12097402
mas
Concept
Q531
light year
Concept
Q14226
Gamma Centauri
CEL
Q25377588
A-type star
Concept
Q25377588
stellar classification
Concept
Q3450
main sequence star
Concept
Q6472
evolved
Concept
Q6227
subgiant star
Concept
Q6464
projected rotational velocity
Concept
Q208395
oblate
Concept
Q180892
mass of the Sun
Concept
Q48440
Sun's radius
Concept
Q2701528
Tau Centauri
CEL
++3.86^^http://www.w3.org/2001/XMLSchema#decimal
+3.86
NUMBER
+24.85^^http://www.w3.org/2001/XMLSchema#decimal
24.85
NUMBER
+98^^http://www.w3.org/2001/XMLSchema#decimal
98
NUMBER
0^^http://www.w3.org/2001/XMLSchema#decimal
0
NUMBER
+1^^http://www.w3.org/2001/XMLSchema#decimal
1
NUMBER
+30^^http://www.w3.org/2001/XMLSchema#decimal
30
NUMBER
+2.3^^http://www.w3.org/2001/XMLSchema#decimal
2.3
NUMBER
+2.2^^http://www.w3.org/2001/XMLSchema#decimal
2.2
NUMBER
instance of
constellation
radius
instance of