V1149 Orionis

V1149 Orionis
Location of HD 37824 (circled)
Observation data
Epoch J2000[1]      Equinox J2000[1]
Constellation Orion
Right ascension 05h 41m 26.78779s[2]
Declination +03° 46′ 40.9348″[2]
Apparent magnitude (V) 6.59[3]
Characteristics
Spectral type K0III[3] or K1III[4] + late-F or G[3]
B−V color index +1.14[5]
J−H color index +0.721[6]
J−K color index +0.875[6]
Variable type RS CVn[7]
Astrometry
Radial velocity (Rv)26.90 ± 0.3[8] km/s
Proper motion (μ) RA: 34.517[2] mas/yr
Dec.: 4.825[2] mas/yr
Parallax (π)6.6357 ± 0.0581 mas[2]
Distance492 ± 4 ly
(151 ± 1 pc)
Absolute magnitude (MV)0.68±0.37[3]
Orbit[3]
PrimaryHD 37824 A
CompanionHD 37824 B
Period (P)53.57465±0.00072 d
Semi-major axis (a)19.518±0.083×106 km (minimum)
Eccentricity (e)0.0 (adopted)
Periastron epoch (T)2448625.022±0.037
Details[3]
HD 37824 A
Mass1.5–2.5 M☉
Radius12.6±2.2 R☉
Luminosity67±23 L☉
Metallicity [Fe/H]0.0 dex
Rotation54.1[4]
Rotational velocity (v sin i)14.9±1.0 km/s
Other designations
V1149 Ori, AG+03° 687, BD+03° 1007, Gaia DR3 3224222985512259072, HD 37824, HIP 26795, SAO 113040, PPM 149320, TIC 199890794, TYC 123-713-1, GSC 00123-00713, 2MASS J05412678+0346410[1]
Database references
SIMBADHD 37824

HD 37824 is a spectroscopic binary star system in the constellation of Orion. It has the variable-star designation V1149 Orionis (abbreviated to V1149 Ori). With an apparent magnitude of 6.59, it is near the limit for naked eye observation from Earth, faintly visible as an orange-hued dot of light under dark skies. It is located approximately 492 light-years (151 parsecs) distant according to Gaia DR3 parallax measurements, and is moving further away at a heliocentric radial velocity of 26.90 km/s.

  1. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference dr3 was invoked but never defined (see the help page).
  3. ^ a b c d e f Cite error: The named reference Fekel2005 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Montes2000 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference TYC2000 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference 2MASS was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference gcvs was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Karatas2004 was invoked but never defined (see the help page).