22 Tauri

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Star
22 Tauri
M45map.jpg
Above right the pair of steropes in the pleiades
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation bull
Right ascension 03 h 46 m 2.9 s
declination + 24 ° 31 ′ 40.4 ″
Apparent brightness 6.42 mag
Typing
B − V color index (−0.02) 
Spectral class A0 Vn
Astrometry
Radial velocity (6.9 ± 1.3) km / s
parallax (7.35 ± 0.09)  mas
distance (444 ± 6)  ly
(136)  pc
Proper movement 
Rec. Share: (19.60 ± 0.21)  mas / a
Dec. portion: (−45.08 ± 0.13)  mas / a
Physical Properties
Other names
and catalog entries
Flamsteed name 22 Tauri
Bonn survey BD + 24 ° 556
Bright Star Catalog HR 1152 [1]
Henry Draper Catalog HD 23441 [2]
Hipparcos catalog HIP 17588 [3]
SAO catalog SAO 76164 [4]
Tycho catalog TYC 1804-2521-1 [5]
2MASS catalog 2MASS J03460288 + 2431403 [6]
Other names Steropes II

22 Tauri (also Sterope II ) is a star located in the Pleiades . Because of the low luminosity and the short distance, the star was previously called steropes together with 21 Tauri (Sterope I). In 2016, however, the IAU set the proper name Asterope as a standardized proper name only for 21 Tauri.

properties

The star has the spectral class A0Vn and is located at a distance of a little over 440 LJ according to Gaia DR2 . This makes it one of the most distant Pleiades . It is possible that 22 Tauri is a double star .

Individual evidence

  1. ↑ a b c d e f g h 22 Tau. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed July 22, 2018 .
  2. ↑ Richard Hinckley Allen: Star names - Their Lore and Meaning . Dover Books, 1963, p. 407 (Retrieved September 14, 2016).
  3. ↑ Bulletin of the IAU Working Group on Star Names, No. October 2, 2016. (PDF) Retrieved November 10, 2016 (English, 151 KiB).