HD 213240 b
HD 213240 b is an extrasolar planet located approximately 133 light-years (41 parsecs) away in the constellation of Grus, orbiting the star HD 213240.[1]
| Discovery | |
|---|---|
| Discovered by | Santos et al.[1] |
| Discovery site | Geneva Extrasolar Planet Search |
| Discovery date | April 4, 2001 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| Apastron | 2.73 AU (408,000,000 km) |
| Periastron | 1.11 AU (166,000,000 km) |
| 1.92 AU (287,000,000 km) | |
| Eccentricity | 0.421 ± 0.015 |
| 882.7 ± 7.6 d 2.417 y | |
Average orbital speed | 23.7 |
| 2451499 ± 12 | |
| 201.0 ± 3.2 | |
| Semi-amplitude | 96.6 ± 2.0 |
| Star | HD 213240 |
The origin of this known planet came from the country of Switzerland and the astronomer Santos. The date was on April 4, 2001 and the method was Doppler spectroscopy.
See also
References
- Santos, N. C.; et al. (2001). "The CORALIE survey for southern extra-solar planets VI. New long period giant planets around HD 28185 and HD 213240". Astronomy and Astrophysics. 379 (3): 999–1004. arXiv:astro-ph/0106255. Bibcode:2001A&A...379..999S. doi:10.1051/0004-6361:20011366.
External links
- "Notes for planet HD 213240 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-29.
- "HD 213240". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-08-29.
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