HD 41534

HD 41534
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Columba
Right ascension 06h 04m 20.26492s[1]
Declination −32° 10′ 20.7434″[1]
Apparent magnitude (V) 5.65[2]
Characteristics
Evolutionary stage main sequence
Spectral type B2V[3]
U−B color index −0.82[4]
B−V color index −0.186±0.003[2]
Astrometry
Radial velocity (Rv)+93.0±3.7[5] km/s
Proper motion (μ) RA: −16.144[1] mas/yr
Dec.: +121.467[1] mas/yr
Parallax (π)3.4507 ± 0.0857 mas[1]
Distance950 ± 20 ly
(290 ± 7 pc)
Absolute magnitude (MV)−1.78[2]
Details
Mass6.9+0.75
−0.68[6] M☉
Radius3.90[7] R☉
Luminosity1621.15[2] L☉
Surface gravity (log g)4.0±0.25[6] cgs
Temperature20,000±1,000[6] K
Rotational velocity (v sin i)122[8] km/s
Age14+13
−8[6] Myr
Other designations
72G. Col[9], CD−32°1008, FK5 41534, GC 7708, HD 41534, HIP 28756, HR 2149, SAO 196459, PPM 282235, CCDM J06043-3210AB, WDS J06043-3210AB[10]
Database references
SIMBADdata

HD 41534 is a binary star[11] system in the southern constellation of Columba. It is dimply visible to the naked eye with a combined apparent visual magnitude of 5.65.[2] The distance to this system is approximately 950 light-years based on parallax,[1] and it is receding from the Sun with a radial velocity of +93 km/s.[5] This is a runaway star system with an unusually high peculiar velocity of 187.6+12.2
−13.8 km/s.[12] It is thought to have been ejected from the OB association Sco OB 1 approximately 14 million years ago.[13]

The primary component is a B-type main-sequence star with a stellar classification of B2V.[3] It displays microvariability with an amplitude of 0.0086 in magnitude and a frequency of 0.11316 cycles per day.[14] The star is an estimated 14[6] million years old with a high rate of spin, showing a projected rotational velocity of 122.[8] It has seven[6] times the mass of the Sun and about four[7] times the Sun's radius. HD 41534 is radiating over 1,600[2] times the luminosity of the Sun from its photosphere at an effective temperature of 20,000 K.[6]

  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 e f Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1979 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference bsc1 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Kharchenko2007 was invoked but never defined (see the help page).
  6. ^ a b c d e f g Cite error: The named reference gullikson2016 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Fracassini2001 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Balona1975 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Gould2009 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Tetzlaff2011 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference vanAlbada1961 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference koen2002 was invoked but never defined (see the help page).