Luminosity 150 L☉ Constellation Taurus | Magnitude 4.3 Apparent magnitude (V) 4.3 | |
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Similar Celaeno (star), Electra (star), Merope (star) | ||
Taygeta, also designated 19 Tauri or q Tauri, is a triple star system in the constellation of Taurus and a member of the Pleiades open star cluster (M45). It is approximately 440 light years from the Sun.
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Nomenclature
19 Tauri is the star's Flamsteed designation. It also bears the little-used Bayer designation q Tauri. Under the rules for naming objects in multiple star systems, the primary component is designated Taygeta A with its two sub-components designated Taygeta Aa and Taygeta Ab. The secondary component is designated Taygeta B.
The system bore the traditional name Taygeta (or Taygete). Taygete was one of the Pleiades sisters in Greek mythology. In 2016, the International Astronomical Union organized a Working Group on Star Names (WGSN) to catalogue and standardize proper names for stars. The WGSN approved the name Taygeta for this star on 21 August 2016 and it is now so entered in the IAU Catalog of Star Names.
Properties
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. The 8th magnitude companion, Taygeta B, is 69 arcseconds away.
Taygeta was once reported to be variable, but has since been measured to be one of the least variable of stars.