HD 29697

HD 29697

A light curve for V834 Tauri, plotted from Kepler data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Taurus
Right ascension 04h 41m 18.85634s[2]
Declination +20° 54′ 05.4456″[2]
Apparent magnitude (V) 7.94 - 8.33[3]
Characteristics
Spectral type K3 V[4]
U−B color index +0.94[5]
B−V color index +1.09[5]
Variable type BY Dra[6]
Astrometry
Radial velocity (Rv)+11[7] km/s
Proper motion (μ) RA: −232.38±1.05[2] mas/yr
Dec.: −254.28±0.69[2] mas/yr
Parallax (π)75.82 ± 1.14 mas[2]
Distance43.0 ± 0.6 ly
(13.2 ± 0.2 pc)
Absolute magnitude (MV)+7.49[8]
Details
Mass0.75[9] M☉
Radius0.67[9] R☉
Luminosity0.15[9] L☉
Surface gravity (log g)4.50[6] cgs
Temperature4,454±11.4[10] K
Metallicity [Fe/H]0.01[6] dex
Rotational velocity (v sin i)9.73[6] km/s
Age49±37[9] Myr
Other designations
V834 Tau, BD+20° 802, GJ 174, Gliese 174, HD 29697, HIP 21818, SAO 76708.[11]
Database references
SIMBADdata
ARICNSdata

HD 29697 (Gliese 174, V834 Tauri) is a variable star of BY Draconis type in the constellation Taurus. It has an apparent magnitude around 8 and is approximately 43 ly away.

  1. ^ Cite error: The named reference MAST was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference hipparcos was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference gcvs was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference mnras328_1_45 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference MERMILLIOD was invoked but never defined (see the help page).
  6. ^ a b c d Cite error: The named reference aa547_A106 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference rgcrv was invoked but never defined (see the help page).
  8. ^ Anderson, E; Francis, Ch (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644.
  9. ^ a b c d Cite error: The named reference apj698_2_1068 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference aaa411_3_559 was invoked but never defined (see the help page).
  11. ^ "HD 29697". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 6 February 2018.