Asterope (star)

The name Asterope or Sterope is shared by two stars, 21 Tauri and 22 Tauri, in the constellation Taurus.[1] They are separated by 0.047° on the sky and are both members of the Pleiades open cluster and approximately 440 light years from Earth.

21 Tauri

21 Tauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Taurus
Right ascension 03h 45m 54.4s
Declination +24° 33' 17"
Apparent magnitude (V) +5.76
Distance440 ly
(135 pc)
Spectral typeB8V
Other designations
Asterope, Sterope I,
HR 1151, HD 23432,
BD+24 553, HIP 17579,
SAO 76159, GC 4502

21 Tauri is a blue-white B-type main sequence dwarf with an apparent magnitude of +5.76.

22 Tauri

22 Tauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Taurus
Right ascension 03h 46m 02.9s
Declination +24° 31' 41"
Apparent magnitude (V) +6.43
Distance440 ly
(135 pc)
Spectral typeA0Vn
Other designations
Sterope II, HR 1152,
HD 23441, BD+24 556,
HIP 17588, SAO 76164,
GC 4506

22 Tauri is a white A-type main sequence dwarf with an apparent magnitude of +6.43.

See also

References

  1. ↑ Burnham, Robert (1978). Burnham's Celestial Handbook: An Observer's Guide to the Universe Beyond the Solar System 3. Courier Corporation. p. 1883.