Merope (star)

Merope
Image of the Pleiades star cluster
Merope in the Pleiades cluster (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Taurus
Right ascension 03h 46m 19.5859s[1]
Declination 23° 56′ 54.092″[1]
Apparent magnitude (V) 4.18[2]
Characteristics
Spectral type B6IV(e)[3]
U−B color index −0.41[4]
B−V color index −0.06[4]
Variable type β Cephei[5]
Astrometry
Radial velocity (Rv)6.2[6] km/s
Proper motion (μ) RA: 13.075[1] mas/yr
Dec.: −48.404[1] mas/yr
Parallax (π)7.0670 ± 0.2862 mas[1]
Distance460 ± 20 ly
(142 ± 6 pc)
Absolute magnitude (MV)−1.29[7]
Details
Mass4.25[8] M☉
Radius7.7[9] R☉
Luminosity927[10] L☉
Surface gravity (log g)3.48[10] cgs
Temperature14,550[10] K
Rotational velocity (v sin i)240[10] km/s
Age212[11] Myr
Other designations
Merope, 23 Tau, V971 Tauri, HR 1156, BD+23°522, HD 23480, HIP 17608, SAO 76172, GC 4512, CCDM J03463+2357A
Database references
SIMBADdata

Merope /ˈmɛrəpiː/,[12] designated 23 Tauri (abbreviated 23 Tau), is a star in the constellation of Taurus and a member of the Pleiades star cluster. It is approximately 440 light-years (135 pc) away.

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  10. ^ a b c d Cite error: The named reference zorec2016 was invoked but never defined (see the help page).
  11. ^ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771–782. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. S2CID 118345778.
  12. ^ Cite error: The named reference Davis44 was invoked but never defined (see the help page).