Taygeta (star)

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Taygeta, 19 Tau
M45map.jpg
Taygeta is the bright star at the top right of the map.
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Taurus
Right ascension 03h 45m 12.49578s[1]
Declination 24° 28′ 02.2097″[1]
Apparent magnitude (V) 4.30[2]
Characteristics
U−B color index -0.48[3]
B−V color index -0.12[3]
Astrometry
Radial velocity (Rv) 10.1[2] km/s
Proper motion (μ) RA: 21.24 ± 0.38[1] mas/yr
Dec.: -40.56 ± 0.35[1] mas/yr
Parallax (π) 7.97 ± 0.33[1] mas
Distance 440 ly
(135 pc)
Details
Taygeta A
Mass 4.5[4] M
Luminosity 600[4] L
Taygeta B
Mass 3.2[4] M
Luminosity 150[4] L
Other designations
19 Tauri, HR 1145, HD 23338, BD+24 547, HIP 17531, SAO 76140, GC 4486, BDS 1848, CCDM 03452+2429
Database references
SIMBAD data

Coordinates: Sky map 03h 45m 12.49578s, +24° 28′ 02.2097″ Taygeta (19 Tauri) is a triple star system in the constellation Taurus and a member of the Pleiades star cluster. It is approximately 440 light years from Earth.

The primary component, Taygeta A, is a blue-white B-type subgiant with an apparent magnitude of +4.30. It is a spectroscopic binary, whose component stars have magnitudes of +4.6 and +6.1. They are separated by 0.012 arcseconds and complete one orbit every 1313 days. They have an 8th magnitude companion, Taygeta B, 69 arcseconds away.

See also

References

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External links


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