HD 73267

HD 73267 is a star in the southern constellation Pyxis, near the western constellation border with Puppis. It has an apparent visual magnitude of 8.889[2] and can be viewed with a small telescope. The distance to HD 73267 is 165 light years based on parallax, and it is drifting further away with a radial velocity of +51.8 km/s.[5] It has an absolute magnitude of 5.24.[6]

HD 73267
Observation data
Epoch J2000      Equinox J2000
Constellation Pyxis
Right ascension 08h 36m 17.77610s[1]
Declination −34° 27′ 35.9193″[1]
Apparent magnitude (V) 8.889[2]
Characteristics
Spectral type G5V[3]
Apparent magnitude (J) 7.493±0.023[4]
Apparent magnitude (H) 7.126±0.031[4]
Apparent magnitude (K) 7.062±0.023[4]
B−V color index 0.827±0.003[2]
Astrometry
Radial velocity (Rv)+51.836±0.0011[5] km/s
Proper motion (μ) RA: −106.233[1] mas/yr
Dec.: +123.257[1] mas/yr
Parallax (π)19.8087 ± 0.0284[1] mas
Distance164.7 ± 0.2 ly
(50.48 ± 0.07 pc)
Absolute magnitude (MV)5.24[6]
Details[2]
Mass0.897±0.019 M☉
Radius0.909±0.033 R☉
Luminosity0.783±0.09[3] L☉
Surface gravity (log g)74.447±0.035 cgs
Temperature5,387±10 K
Metallicity [Fe/H]0.07±0.04 dex
Rotation∼43 d
Rotational velocity (v sin i)1.65[3] km/s
Age8.140±3.505 Gyr
Other designations
CD−34°5039, HD 73267, HIP 42202, SAO 199418, PPM 285436, NLTT 19895, GSC 07144-01553, 2MASS J08361779-3427358[7]
Database references
SIMBADdata
Exoplanet Archivedata
Extrasolar Planets
Encyclopaedia		data

This object is a G-type main-sequence star with a stellar classification of G5V.[3] It is roughly eight billion years old with a near-solar metallicity and is spinning with a projected rotational velocity of 1.65 km/s,[3] giving it a rotation period of around 33 days. The star has 90% of the mass and size of the Sun.[2] It is radiating 78%[3] of the Sun's luminosity from its photosphere at an effective temperature of 5387 K.[2]

Planetary system

In October 2008, a candidate planet was discovered orbiting this star. This object was detected using the radial velocity method by search programs conducted using the HARPS spectrograph.[3] Subsequent analysis of collected data suggests the presence of an additional long-period planet in the system with at least 83% of the mass of Jupiter.[2]

The HD 73267 planetary system[3]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b ≥3.06±0.07 MJ 2.198±0.025 1,260±7 0.256±0.009 — —

See also
  • List of extrasolar planets

References
  1. 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. Barbato, D.; et al. (August 2018). "Exploring the realm of scaled solar system analogues with HARPS". Astronomy & Astrophysics. 615: 21. arXiv:1804.08329. Bibcode:2018A&A...615A.175B. doi:10.1051/0004-6361/201832791. A175.
  3. Moutou, C.; et al. (2009). "The HARPS search for southern extra-solar planets XVII. Six long-period giant planets around BD -17 0063, HD 20868, HD 73267, HD 131664, HD 145377, HD 153950". Astronomy and Astrophysics. 496 (2): 513–519. arXiv:0810.4662. Bibcode:2009A&A...496..513M. doi:10.1051/0004-6361:200810941.
  4. Cutri, R. M.; et al. (2003). "2MASS All-Sky Catalog of Point Sources". VizieR On-line Data Catalog. Bibcode:2003yCat.2246....0C.
  5. Soubiran, C.; et al. (2018). "Gaia Data Release 2. The catalogue of radial velocity standard stars". Astronomy and Astrophysics. 616: A7. arXiv:1804.09370. Bibcode:2018A&A...616A...7S. doi:10.1051/0004-6361/201832795.
  6. 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
  7. "HD 73267". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-11-29.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.