Taygeta

Taygeta
Image of the Pleiades star cluster
Taygeta in the Pleiades cluster (circled)
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
Spectral type B6IV + ?[3]
U−B color index -0.48[4]
B−V color index -0.12[4]
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 mas[1]
Distance440 ly
(135 pc)
Details
Taygeta
Mass4.5[5] M☉
Luminosity600[5] L☉
19 Tauri Ab
Mass3.2[5] M☉
Luminosity150[5] L☉
Other designations
q Tauri, HR 1145, HD 23338, BD+24°547, HIP 17531, SAO 76140, GC 4486, BDS 1848, CCDM 03452+2429
Database references
SIMBADdata

Taygeta is a double star in the constellation of Taurus and a member of the Pleiades open star cluster (M45).

It consists of a binary pair designated 19 Tauri A together with a single star visual companion, 19 Tauri B. 'A's' two components are themselves designated 19 Tauri Aa (officially named Taygeta /teɪˈɪdʒətə/,[6] the traditional name for the entire system)[7] and Ab.

Based on parallax measurements obtained during the Hipparcos mission, 19 Tauri A is approximately 440 light-years from the Sun.

  1. ^ a b c d e Cite error: The named reference van Leeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference mnras389_2_869 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference PENSTON was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference kaler was invoked but never defined (see the help page).
  6. ^ Davis, George A. (1944). "The pronunciations, derivations, and meanings of a selected list of star names". Popular Astronomy. 52: 8–30. Bibcode:1944PA.....52....8D.
  7. ^ "Naming Stars". IAU.org. Retrieved 5 March 2018.