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J20000
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Taurus
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04<sup>h</sup> 26<sup>m</sup> 185<sup>s</sup>
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+22° 48' 49"
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A8Vn
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+428
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155 ± 6
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47 ± 2
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(υ Tau / υ Tauri) is a
Triple Star System in the
Constellation Taurus and a member of the
Hyades Star Cluster . It is approximately 155
Light Years from
Earth .
The primary component, , is a white
A-type Main Sequence Dwarf with a mean
Apparent Magnitude of +4.28. It is classified as a
Delta Scuti Type Variable Star and its brightness varies from magnitude +4.28 to +4.31 with a period of 3.56 hours. It is also a
Spectroscopic Binary , and is composed of two stars with
Apparent Magnitude s of +4.4 and +6.5 which are separated by 0.02
Arcsecond s, or at least 1
Astronomical Unit . A third star, 12th magnitude in brightness, orbits the pair with a separation of 110 arcseconds.
Occasionally this star system shares the
Bayer Designation with
72 Tauri , which separated from this star system by 0.29° on the sky. 72 Tauri is not a member of the Hyades cluster, being three times farther away from
Earth .
