Rho1 Arietis

For other stars with this Bayer designation, see ρ Arietis.
Rho1 Arietis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Aries
Right ascension 02h 54m 55.19994s[1]
Declination +17° 44′ 05.1102″[1]
Apparent magnitude (V) 7.01[2]
Characteristics
Spectral type A5 V[3]
U−B color index +0.03[4]
B−V color index +0.28[4]
Astrometry
Radial velocity (Rv)+3.2 ± 3.6[2] km/s
Proper motion (μ) RA: +46.18[1] mas/yr
Dec.: −25.50[1] mas/yr
Parallax (π)12.07 ± 0.70 mas[1]
Distance270 ± 20 ly
(83 ± 5 pc)
Absolute magnitude (MV)+2.43[5]
Details
Luminosity8.85[5] L☉
Other designations
Rho1 Ari, 44 Arietis, BD+17°454, GC 3492, HD 18091, HIP 13579, SAO 93178.[6]
Database references
SIMBADdata

Rho1 Arietis is the Bayer designation for a star in the northern constellation of Aries, the ram. It has an apparent visual magnitude of 7.01,[2] making it a challenge to see with the naked eye even under ideal dark-sky conditions. Based upon an annual parallax shift measurement of 12.07 mas,[1] it is 270 light-years (83 parsecs) distant from the Earth. It is a white-hued A5 main sequence star.

  1. ^ a b c d e f Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference al32_11_759 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference andersson was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference ubv 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 SIMBAD was invoked but never defined (see the help page).