Zeta Arietis

ζ Arietis
Location of ζ Arietis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Aries
Right ascension 03h 14m 54.09143s[1]
Declination +21° 02′ 39.9952″[1]
Apparent magnitude (V) +4.89[2]
Characteristics
Spectral type A1 V[3]
U−B color index –0.01[2]
B−V color index –0.02[2]
Astrometry
Radial velocity (Rv)+7.0[4] km/s
Proper motion (μ) RA: –19.930[1] mas/yr
Dec.: –72.900[1] mas/yr
Parallax (π)12.7708 ± 0.3734 mas[1]
Distance255 ± 7 ly
(78 ± 2 pc)
Absolute magnitude (MV)+0.35[5]
Details
Mass2.66±0.07[6] M☉
Luminosity73[5] L☉
Temperature9,500[7] K
Rotational velocity (v sin i)133[8] km/s
Other designations
ζ Ari, 58 Arietis, BD+20 527, FK5 1089, HD 20150, HIP 15110, HR 972, SAO 75810[9]
Database references
SIMBADdata

Zeta Arietis, Latinized from ζ Arietis, is a star in the northern constellation of Aries. It is dimly visible to the naked eye with an apparent visual magnitude of +4.89.[2] Based upon an annual parallax shift of 12.77 mas,[1] the distance to this star is 255 ± 7 light-years (78 ± 2 parsecs). This is an A-type main sequence star with a stellar classification of A1 V.[3] It has a high rate of rotation with a projected rotational velocity of 133 km/s.[8] The star is shining at an effective temperature of 9,500 K,[7] giving it the characteristic white-hued glow of an A-type star.[10]

  1. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference clpl4_99 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference aj74_375 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference scfs was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Zorec_Royer_2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference aass183_1_91 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference aaa463_2_671 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference csiro was invoked but never defined (see the help page).