HD 104067

Last updated
HD 104067
Observation data
Epoch J2000.0       Equinox J2000.0
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  mas/yr [1]
Dec.: −423.780  mas/yr [1]
Parallax (π)49.1470 ± 0.0235  mas [1]
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
BD−19°3382, GJ  1153, HD  104067, HIP  58451, SAO  180353, PPM  259710, LTT  4461, NLTT  29176 [7]
Database references
SIMBAD data
Exoplanet Archive 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]

Contents

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  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]

The HD 104067 planetary system [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±0.001313.8992+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±0.0170.123+0.048
−0.051		——

See also

Related Research Articles

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HD 114783 is a star with two exoplanetary companions in the equatorial constellation of Virgo. With an apparent visual magnitude of 7.56 it is too faint to be visible with the unaided eye, but is an easy target for binoculars. Based on parallax measurements, it is located at a distance of 68.6 light-years from the Sun, but is drifting closer with a radial velocity of −12 km/s.

HD 81040 is a star in the equatorial constellation of Leo. With an apparent visual magnitude of +7.73 it is too dim to be visible to the naked eye but can be viewed with a small telescope. The star is located at a distance of 112 light years from the Sun based on parallax. It is drifting further away with a radial velocity of +49 km/s, having come to within 48 light-years some 527,000 years ago.

HD 222582 is a multiple star system in the equatorial constellation of Aquarius. It is invisible to the naked eye with an apparent visual magnitude of 7.7, but can be viewed with binoculars or a small telescope. The system is located at a distance of 137 light years from the Sun based on parallax, and it is drifting further away with a radial velocity of +12 km/s. It is located close enough to the ecliptic that it is subject to lunar occultations.

HD 221287, named Poerava, is a star in the southern constellation of Tucana. It has a yellow-white hue but is too faint to be viewed with the naked eye, having an apparent visual magnitude of 7.82. This object is located at a distance of 183 light years from the Sun, as determined from its parallax. It is drifting closer with a radial velocity of −22 km/s.

HD 4113 is a dual star system in the southern constellation of Sculptor. It is too faint to be viewed with the naked eye, having an apparent visual magnitude of 7.88. The distance to this star, as estimated by parallax measurements, is 137 light years. It is receding away from the Sun with a radial velocity of +5 km/s.

HD 213240 is a possible binary star system in the constellation Grus. It has an apparent visual magnitude of 6.81, which lies below the limit of visibility for normal human sight. The system is located at a distance of 133.5 light years from the Sun based on parallax. The primary has an absolute magnitude of 3.77.

HD 162020 is a star in the southern constellation of Scorpius with a likely red dwarf companion. It has an apparent visual magnitude of 9.10, which is too faint to be visible to the naked eye. The distance to this system is 102 light-years based on stellar parallax. It is drifting closer to the Sun with a radial velocity of −27 km/s, and is predicted to come to within ~18 light-years in 1.1 million years.

HD 60532 is a star with two orbiting exoplanets in the southern constellation of Puppis. The designation HD 60532 takes its name from the Henry Draper Catalogue. The system is located at a distance of 85.5 light years from the Sun, and is drifting further away with a radial velocity of 61 km/s. At that distance, the star has an apparent visual magnitude of 4.45, which is bright enough to be faintly visible to the naked eye. The motion of this system through space brought it within 10.3 light-years of the Sun some 408,600 years ago.

HD 45364 is a star in the southern constellation of Canis Major. It is too faint to be visible to the naked eye, having an apparent visual magnitude of 8.08. The distance to this system is 112 light years based on parallax. It is drifting further away from the Sun with a radial velocity of +16.4 km/s, having come within 49 light-years some 1.5 million years ago.

HD 85390 is a star with an exoplanet companion in the southern constellation of Vela. It was given the proper name Natasha by Zambia during the 100th anniversary of the IAU. Natasha means "thank you" in many languages of Zambia. This star is too faint to be seen with the naked eye, having an apparent visual magnitude of 8.54. It is located at a distance of 109 light years from the Sun based on parallax, and is drifting further away with a radial velocity of 33 km/s.

HD 125595 is a star with a close Neptunian companion in the southern constellation of Centaurus. With an apparent visual magnitude of 9.03, this star is too faint to be viewed with the naked eye. It is located at a distance of 92 light years from the Sun based on parallax measurements, and is drifting further away with a radial velocity of +4.5 km/s. The star has a high proper motion, traversing the celestial sphere and an angular rate of 0.57 arcsecond yr−1.

HIP 70849 is a star with two non-stellar companions in the southern constellation Lupus. It is a 10th magnitude star, making it too faint to be visible to the naked eye. The system is located at a distance of 78.7 light-years from the Sun based on parallax measurements.

HD 152079 is a star with an orbiting exoplanet in the southern constellation of Ara. It is located at a distance of 287 light years from the Sun based on parallax measurements, but is drifting closer with a radial velocity of −21 km/s. At that distance the star is much too faint to be visible with the naked eye, having an apparent visual magnitude of 9.18.

HD 220689 is a single star in the equatorial constellation of Aquarius. It is a challenge to view with the naked eye, having an apparent visual magnitude of +7.74, but is readily viewed with a pair of binoculars. The star is located at a distance of 153 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +12 km/s. A survey in 2015 has ruled out the existence of any additional stellar companions at projected distances from 26 to 305 astronomical units.

HD 109271 is a wide binary star system in the constellation of Virgo. The brighter member of the binary has a pair of orbiting exoplanets. With an apparent visual magnitude of 8.05, it cannot be seen with the naked eye. Parallax measurements made by Gaia put the star at a distance of 181 light-years away from the Sun, but it is drifting closer with a radial velocity of −5 km/s. The system shows a high proper motion, traversing the celestial sphere at an angular rate of 0.232 arcsec yr−1.

HD 215152 is the Henry Draper Catalogue designation for a star in the zodiac constellation of Aquarius. It has an apparent visual magnitude of 8.13, meaning it is too faint to be seen with the naked eye. Parallax measurements provide distance estimates of around 70 light years. The star has a relatively high proper motion, moving across the sky at an estimated 0.328 arc seconds per year along a position angle of 205°.

HD 44120 is a wide binary star system in the southern constellation of Pictor. Although visible to the naked eye, it is a challenge to view having an apparent visual magnitude of 6.44. The system is located at a distance of 118 light years from the Sun based on parallax, but it is drifting closer with a radial velocity of −2 km/s. It has an absolute magnitude of 3.57.

HD 35759 is a star with an orbiting exoplanet located in the circumpolar constellation Camelopardalis. With an apparent magnitude of 7.74, it's impossible to see with the unaided eye, but can be seen with binoculars. The distance to this system is 232 light years based on parallax measurements, and it is drifting closer with a heliocentric radial velocity of −12.6 km/s.

References

  1. 1 2 3 4 5 6 7 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211 . Bibcode:2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940 . S2CID   244398875. Gaia DR3 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 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 5 6 7 8 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. 1 2 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.
  6. 1 2 3 4 5 Kane, Stephen R.; Fetherolf, Tara; et al. (March 2024). "A Perfect Tidal Storm: HD 104067 Planetary Architecture Creating an Incandescent World". The Astronomical Journal . arXiv: 2403.17062 .
  7. ↑ "HD 104067". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2021-09-28.
  8. 1 2 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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