Asterope (star)
Star Asterope (21 Tauri) |
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Above right the pair of steropes in the pleiades | |||||||||||||||||||
AladinLite | |||||||||||||||||||
Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | bull | ||||||||||||||||||
Right ascension | 03 h 45 m 54.48 s | ||||||||||||||||||
declination | + 24 ° 33 ′ 16.2 ″ | ||||||||||||||||||
Apparent brightness | 5.76 likes | ||||||||||||||||||
Typing | |||||||||||||||||||
B − V color index | (−0.04) | ||||||||||||||||||
U − B color index | (−0.33) | ||||||||||||||||||
R − I index | (−0.03) | ||||||||||||||||||
Spectral class | B8 V | ||||||||||||||||||
Astrometry | |||||||||||||||||||
Radial velocity | (6.0 ± 0.6) km / s | ||||||||||||||||||
parallax | (7.57 ± 0.13) mas | ||||||||||||||||||
distance | (431 ± 8) ly (132) pc |
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Proper movement | |||||||||||||||||||
Rec. Share: | (20.03 ± 0.05) mas / a | ||||||||||||||||||
Dec. portion: | (−45.95 ± 0.03) mas / a | ||||||||||||||||||
Physical Properties | |||||||||||||||||||
Other names and catalog entries |
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Asterope (also Sterope ) is the proper name of the star 21 Tauri in the Pleiades . The name comes from Asterope , a Pleiad of Greek mythology .
Because of the low luminosity and the small distance, the name was also used in the past alongside 21 Tauri ( Sterope I ) for 22 Tauri ( Sterope II ). In 2016, however, the IAU set the proper name Asterope as a standardized proper name only for 21 Tauri.
Asterope, like all stars in the Pleiades, can occasionally be covered by the moon .
Web links
Commons : Asterope - collection of images, videos and audio files
Individual evidence
- ↑ a b c d e f g h i 21 Tau. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed July 22, 2018 .
- ↑ Richard Hinckley Allen: Star names - Their Lore and Meaning . Dover Books, 1963, p. 407 (Retrieved September 14, 2016).
- ↑ Bulletin of the IAU Working Group on Star Names, No. October 2, 2016. (PDF) Retrieved November 10, 2016 (English, 151 KiB).