HD 130322
HD 130322 is an 8th-magnitude star in the constellation of Virgo. It is an orange dwarf, a type of star somewhat dimmer and cooler than our Sun. Spectral type of the star is K0V. It can only be seen with binoculars or telescope. Being almost exactly on the celestial equator the star is visible everywhere in the world except for the North Pole.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Virgo |
| Right ascension | 14h 47m 32.7266s[1] |
| Declination | −00° 16′ 53.3059″[1] |
| Apparent magnitude (V) | 8.05 |
| Characteristics | |
| Spectral type | K0V |
| Astrometry | |
| Proper motion (μ) | RA: −130.798±0.106[1] mas/yr Dec.: −140.365±0.118[1] mas/yr |
| Parallax (π) | 31.3423 ± 0.0711[1] mas |
| Distance | 104.1 ± 0.2 ly (31.91 ± 0.07 pc) |
| Details[2] | |
| Mass | 0.92±0.03 M☉ |
| Radius | 0.85±0.04 R☉ |
| Surface gravity (log g) | 4.52±0.06 cgs |
| Temperature | 5387±44 K |
| Rotation | 26.53±0.70 d |
| Rotational velocity (v sin i) | 0.5±0.5 km/s |
| Other designations | |
| Database references | |
| SIMBAD | The star |
| planet b | |
| Exoplanet Archive | data |
The star HD 130322 is named Mönch. The name was selected in the NameExoWorlds campaign by Switzerland, during the 100th anniversary of the IAU. Mönch is one of the prominent peaks of the Bernese Alps.[4][5]
System
In 2000, an extrasolar planet was discovered orbiting the star.[6]
The star rotates at an inclination of 76+14
−42 degrees relative to Earth.[7] It has been assumed that the planet shares that inclination.[8] But several "hot Jupiters" are known to be oblique relative to the stellar axis.[9]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b (Eiger) | >1.089 ± 0.98 MJ | 0.0910 ± 0.053 | 10.70871±0.00018 | 0.029±0.016 | — | — |
See also
References
- 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.
- Hinkel, Natalie R.; et al. (2015). "Refined Properties of the Hd 130322 Planetary System". The Astrophysical Journal. 803 (1). 8. arXiv:1502.03441. Bibcode:2015ApJ...803....8H. doi:10.1088/0004-637X/803/1/8. S2CID 12657851.
- "HD 130322". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-01-16.
- "Approved names". NameExoworlds. Retrieved 2020-01-02.
- "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
- Udry, S.; et al. (2000). "The CORALIE survey for southern extra-solar planets II. The short-period planetary companions to HD 75289 and HD 130322". Astronomy and Astrophysics. 356 (2): 590–598. Bibcode:2000A&A...356..590U. Archived from the original on 2012-03-28. Retrieved 2006-07-02.
- Simpson, E. K.; et al. (November 2010), "Rotation periods of exoplanet host stars", Monthly Notices of the Royal Astronomical Society, 408 (3): 1666–1679, arXiv:1006.4121, Bibcode:2010MNRAS.408.1666S, doi:10.1111/j.1365-2966.2010.17230.x, S2CID 6708869
- "hd_130322_b". Extrasolar Planet Encyclopaedia. Retrieved November 12, 2012.
- Roberto Sanchis-Ojeda; Josh N. Winn; Daniel C. Fabrycky (2012). "Starspots and spin-orbit alignment for Kepler cool host stars". Astronomische Nachrichten. 334 (1–2): 180–183. arXiv:1211.2002. Bibcode:2013AN....334..180S. doi:10.1002/asna.201211765. S2CID 38743202.
- Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID 119067572.
External links