Astronomy:HD 104067
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Corvus |
| Right ascension | 11h 59m 10.00884s[1] |
| Declination | −20° 21′ 13.6121″[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) | +14.89±0.12[1] km/s |
| Proper motion (μ) | RA: 141.706[1] mas/yr Dec.: −423.780[1] mas/yr |
| Parallax (π) | 49.1470 ± 0.0235[1] mas |
| Distance | 66.36 ± 0.03 ly (20.347 ± 0.010 pc) |
| Absolute magnitude (MV) | 6.30[2] |
| Details | |
| Mass | 0.818+0.024 −0.025[4] M☉ |
| Radius | 0.771+0.007 −0.006[4] R☉ |
| Luminosity | 0.307[5] L☉ |
| Surface gravity (log g) | 4.56±0.10[6] cgs |
| Temperature | 4,942±14[4] K |
| Metallicity [Fe/H] | 0.11±0.06[6] dex |
| Rotation | 18.3±4.9 d[6] |
| Rotational velocity (v sin i) | 2.47±0.96[4] km/s |
| Age | 4.8+3.3 −3.0[4] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | 104067 data |
| Extrasolar Planets Encyclopaedia | data |
HD 104067 is a star with a planetary system 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 66.4 light-years (20.4 parsecs) 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[8] 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%[5] 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 sub-Saturn planet, HD 104067 b, has at least 0.2 times the mass of Jupiter and takes 55.8 days to orbit the star at a distance of 0.26 astronomical unit|AU.[8] The discovery of a second, Uranus-mass planet, HD 104067 c, was announced in 2024 based on HARPS and HIRES data. TESS observations also show evidence of a third candidate planet, slightly larger than Earth and orbiting closer to the star than the other two planets, with a period of just 2.2 days. Modeling suggests that this inner planet candidate may experience significant tidal heating.[6]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| TOI-6713.01 (unconfirmed) | — | 0.03054(37) | 2.1538197(41) | — | 86.5±2.0° | 1.30±0.12 R⊕ |
| c | ≥13.2±1.9 M⊕ | 0.1058±0.0013 | 13.8992+0.0047 −0.0037 |
0.29+0.12 −0.13 |
— | — |
| b | ≥62.1+3.3 −3.2 M⊕ |
0.2674+0.0032 −0.0033 |
55.851±0.017 | 0.123+0.048 −0.051 |
— | — |
See also
- List of extrasolar planets
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A.
- ↑ 3.0 3.1 3.2 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. doi:10.1093/mnras/stv1441. Bibcode: 2015MNRAS.452.2745S.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 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. doi:10.1051/0004-6361/201731533. Bibcode: 2018A&A...615A..76S.
- ↑ 5.0 5.1 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 6.0 6.1 6.2 6.3 6.4 Kane, Stephen R. et al. (March 2024). "A Perfect Tidal Storm: HD 104067 Planetary Architecture Creating an Incandescent World". The Astronomical Journal 167 (5): 239. doi:10.3847/1538-3881/ad3820. Bibcode: 2024AJ....167..239K.
- ↑ "HD 104067". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+104067.
- ↑ 8.0 8.1 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. doi:10.1051/0004-6361/200913580. Bibcode: 2011A&A...535A..54S. http://www.aanda.org/articles/aa/full_html/2011/11/aa13580-09/aa13580-09.html.
Coordinates: 
11h 59m 10.0100s, −20° 21′ 13.609″
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