HD 259431

HD 259431
Location of HD 259431 (circled) near the bluish IC 447 nebulosity. NGC 2264 is below (west) and the Rosette Nebula on the right (south).
Credit: ESO/S. Guisard
Observation data
Epoch J2000      Equinox J2000
Constellation Monoceros
Right ascension 06h 33m 05.19064s[1]
Declination +10° 19′ 19.9826″[1]
Apparent magnitude (V) 8.62 - 8.91[2]
Characteristics
Spectral type B6e[3]
U−B color index −0.540[4]
B−V color index 0.286[4]
Variable type Orion[2]
Astrometry
Radial velocity (Rv)19.00[5] km/s
Proper motion (μ) RA: −2.410[1] mas/yr
Dec.: −2.912[1] mas/yr
Parallax (π)1.5304 ± 0.0273 mas[1]
Distance2,130 ± 40 ly
(650 ± 10 pc)
Details
Mass6.6[6] M☉
Radius6.63[6] R☉
Luminosity1,550[6] L☉
Temperature14,125[6] K
Rotational velocity (v sin i)90[7] km/s
Age0.32[6] Myr
Other designations
MWC 147, V700 Monocerotis, BD+10°1172, HD 259431, HIP 31235, SAO 95823, TYC 737-610-1
Database references
SIMBADdata

HD 259431 (MWC 147 or V700 Monocerotis) is a young stellar object in the constellation of Monoceros.

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  2. ^ a b Cite error: The named reference gcvs was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference hernandez was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference kilkenny was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference RV was invoked but never defined (see the help page).
  6. ^ a b c d e Cite error: The named reference kraus was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference bagnoli was invoked but never defined (see the help page).