HD 104067
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Corvus
Right ascension 11h 59m 10.00867s[1]
Declination −20° 21′ 13.6101″[1]
Apparent magnitude (V) 7.92[2]
Characteristics
Spectral type K3V[3]
Apparent magnitude (B) 8.894[2]
Apparent magnitude (J) 6.212±0.019[2]
Apparent magnitude (H) 5.754±0.023[2]
Apparent magnitude (K) 5.614±0.024[2]
B−V color index 0.974±0.010[2]
Astrometry
Radial velocity (Rv)+14.87±0.12[1] km/s
Proper motion (μ) RA: 141.869[1] mas/yr
Dec.: −423.911[1] mas/yr
Parallax (π)49.0793 ± 0.0586 mas[1]
Distance66.45 ± 0.08 ly
(20.38 ± 0.02 pc)
Absolute magnitude (MV)6.30[2]
Details[4]
Mass0.818+0.024
−0.025 M☉
Radius0.771+0.007
−0.006 R☉
Luminosity0.307[1] L☉
Surface gravity (log g)4.377±0.917 cgs
Temperature4,942±14 K
Metallicity [Fe/H]−0.010±0.098 dex
Rotation29.8±3.1 d[3]
Rotational velocity (v sin i)2.47±0.96 km/s
Age4.8+3.3
−3.0 Gyr
Other designations
BD−19°3382, GJ 1153, HD 104067, HIP 58451, SAO 180353, PPM 259710, LTT 4461, NLTT 29176[5]
Database references
SIMBADdata
Exoplanet Archivedata

HD 104067 is a star with a planetary companion in the southern constellation of Corvus. It has an apparent visual magnitude of 7.92[2] which is too faint to be visible with the naked eye. The distance to this star is 66 light years based on parallax. It is drifting further away with a radial velocity of +15 km/s.[1]

This is an ordinary K-type main-sequence star with a stellar classification of K3V.[3] It is a moderately active star[6] with an age of roughly five billion years. HD 104067 is spinning with a projected rotational velocity of 2.5 km/s,[4] giving it a rotation period of approximately a month.[3] The star has 82% of the mass and 77% of the radius of the Sun.[4] It is radiating 31%[1] of the Sun's luminosity from its photosphere at an effective temperature of 4,942 K. The metal content of this star is close to that in the Sun.[4]

Planetary system

HD 104067 has been observed as part of the HARPS planet finding survey since 2004. The detection of an exoplanetary companion using the radial velocity method was announced in 2011. This Neptune-like planet, HD 104067 b, has at least 0.16 times the mass of Jupiter and takes 55.8 days to orbit the star at a distance of 0.26 AU.[6]

The HD 104067 planetary system[6]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b 0.186±0.014 MJ 0.2643±0.0045 55.806±0.049 0 — —

See also

References

  1. 1 2 3 4 5 6 7 8 9 Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. 1 2 3 4 5 6 7 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.
  3. 1 2 3 4 Suárez Mascareño, A.; et al. (September 2015). "Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators". Monthly Notices of the Royal Astronomical Society. 452 (3): 2745–2756. arXiv:1506.08039. Bibcode:2015MNRAS.452.2745S. doi:10.1093/mnras/stv1441. S2CID 119181646.
  4. 1 2 3 4 Soto, M. G.; Jenkins, J. S. (2018). "Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES). I. Code description and dwarf stars catalogue". Astronomy and Astrophysics. 615: A76. arXiv:1801.09698. Bibcode:2018A&A...615A..76S. doi:10.1051/0004-6361/201731533. S2CID 119107228.
  5. ↑ "HD 104067". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-09-28.
  6. 1 2 3 Ségransan, D.; et al. (2011). "The HARPS search for southern extra-solar planets. XXIX. Four new planets in orbit around the moderately active dwarfs HD 63765, HD 104067, HD 125595, and HIP 70849". Astronomy and Astrophysics. 535. A54. arXiv:1107.0339. Bibcode:2011A&A...535A..54S. doi:10.1051/0004-6361/200913580. S2CID 119197766.
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