HD 73267
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Pyxis |
| Right ascension | 08h 36m 17.77623s |
| Declination | −34° 27′ 35.9196″ |
| Apparent magnitude (V) | 8.889 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | G5V |
| Apparent magnitude (J) | 7.493±0.023 |
| Apparent magnitude (H) | 7.126±0.031 |
| Apparent magnitude (K) | 7.062±0.023 |
| B−V color index | 0.827±0.003 |
| Astrometry | |
| Radial velocity (Rv) | +51.836±0.0011 km/s |
| Proper motion (μ) | RA: −106.336±0.012 mas/yr Dec.: 123.293±0.013 mas/yr |
| Parallax (π) | 19.9362±0.0130 mas |
| Distance | 163.6 ± 0.1 ly (50.16 ± 0.03 pc) |
| Absolute magnitude (MV) | 5.24 |
| Details | |
| Mass | 0.897±0.019 M☉ |
| Radius | 0.909±0.033 R☉ |
| Luminosity | 0.783±0.09 L☉ |
| Surface gravity (log g) | 74.447±0.035 cgs |
| Temperature | 5,387±10 K |
| Metallicity [Fe/H] | 0.07±0.04 dex |
| Rotation | ~43 d |
| Rotational velocity (v sin i) | 1.65 km/s |
| Age | 8.140±3.505 Gyr |
| Other designations | |
| CD−34°5039, HD 73267, HIP 42202, SAO 199418, PPM 285436, NLTT 19895, GSC 07144-01553, 2MASS J08361779-3427358 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
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 and can be viewed with a small telescope. The distance to HD 73267 is 164 light years based on parallax, and it is drifting further away with a radial velocity of +51.8 km/s. It has an absolute magnitude of 5.24.
This object is a G-type main-sequence star with a stellar classification of G5V. 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, giving it a rotation period of around 33 days. The star has 90% of the mass and size of the Sun. It is radiating 78% of the Sun's luminosity from its photosphere at an effective temperature of 5387 K.
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. 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. In 2022, the inclination and true mass of HD 73267 b were measured, and the presence of a second planet was confirmed using a combination of radial velocity and astrometry.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (years) |
Eccentricity | Inclination (°) |
Radius |
|---|---|---|---|---|---|---|
| b | 4.158+0.681 −0.519 MJ |
2.229+0.091 −0.100 |
3.444+0.001 −0.002 |
0.261±0.004 | 130.843+7.614 −7.660 |
— |
| c | 5.131+0.912 −0.282 MJ |
12.688+0.631 −0.812 |
46.740+2.150 −2.977 |
0.089+0.023 −0.022 |
91.849+18.586 −24.998 |
— |
See also
References
- 1 2 3 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. XHIP record for this object at VizieR.
- 1 2 3 4 5 6 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.
- 1 2 3 4 5 6 7 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. S2CID 119099721. A175.
- 1 2 3 4 5 6 7 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. S2CID 116707055.
- 1 2 3 Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.
- 1 2 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. S2CID 52952408.
- ↑ "HD 73267". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-11-29.
- 1 2 Feng, Fabo; Butler, R. Paul; et al. (August 2022). "3D Selection of 167 Substellar Companions to Nearby Stars". The Astrophysical Journal Supplement Series. 262 (21): 21. arXiv:2208.12720. Bibcode:2022ApJS..262...21F. doi:10.3847/1538-4365/ac7e57. S2CID 251864022.
External links
- "HD 73267". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2009-06-10.
