astro.wikisort.org - Meteorite
HD 30177 b is an extrasolar planet located approximately 181.6 light-years away in the constellation of Dorado, orbiting the star HD 30177.
| Discovery | |
|---|---|
| Discovered by | Tinney, Butler, Marcy et al. |
| Discovery site | Anglo-Australian Planet Search |
| Discovery date | June 13, 2002[1] |
Detection method | radial velocity |
| Orbital characteristics[2] | |
Semi-major axis | 3.604+0.135 −0.147 AU |
| Eccentricity | 0.207+0.012 −0.017 |
Orbital period (sidereal) | 6.884+0.014 −0.012 yr |
| Inclination | 85.393°+14.354° −18.742° |
Longitude of ascending node | 311.232°+65.057° −148.076° |
Time of periastron | 2448895.006+28.802 −21.419 JD |
Argument of periastron | 25.044°+5.476° −2.875° |
| Semi-amplitude | 128.935+2.386 −2.245 m/s |
| Star | HD 30177 |
| Physical characteristics[2] | |
| Mass | 8.403+1.241 −0.489 MJ |
Discovery
This planet was discovered on June 13, 2002[1] by Tinney, Butler, and Marcy et al. using the Doppler spectroscopy from the Anglo-Australian Telescope.[3][4]
Properties
This is one of the most massive planets ever detected by the radial velocity method. In addition, the planet orbits far from the star, about 4 AU away, taking 2770 days (7.58 years) to orbit the star. Even though the massive planet is orbiting at 4 AU from the star, the radial velocity semi-amplitude is high, around 146.8±2.8 m/s. In 2022, the inclination and true mass of HD 30177 b were measured via astrometry, showing the true mass to be close to the minimum mass.[2]
See also
References
- Tinney, Chris (2007-09-07). "AAPS Discovered Planets". Anglo-Australian Planet Search. University of New South Wales. Retrieved 2018-04-17.
- 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). arXiv:2208.12720. Bibcode:2022arXiv220812720F. doi:10.3847/1538-4365/ac7e57.
- Tinney, C. G.; et al. (2003). "Four New Planets Orbiting Metal-enriched Stars". The Astrophysical Journal. 587 (1): 423–428. arXiv:astro-ph/0207128. Bibcode:2003ApJ...587..423T. doi:10.1086/368068.
- 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.
External links
- "Notes for planet HD 30177 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-29.
- "HD 30177". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-08-29.
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