HD 215497 c
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 215497 | |
| Constellation | Tucana | |
| Right ascension | (α) | 22h 46m 36.755s[1] |
| Declination | (δ) | –56° 35′ 58.32″[1] |
| Apparent magnitude | (mV) | 8.97 |
| Distance | 142 ± 7[1] ly (44 ± 2[1] pc) | |
| Spectral type | K3V | |
| Mass | (m) | 0.872 ± 0.023[2] M☉ |
| Radius | (r) | 1.01 ± 0.11 R☉ |
| Temperature | (T) | 5113 ± 93[2] K |
| Metallicity | [Fe/H] | 0.23 ± 0.07[2] |
| Orbital elements | ||
| Semi-major axis | (a) | 1.282[2] AU |
| Eccentricity | (e) | 0.49 ± 0.04[2] |
| Orbital period | (P) | 567.94 ± 2.70[2] d |
| Argument of periastron |
(ω) | 45 ± 4[2]° |
| Time of periastron | (T0) | 2,455,003.48 ± 5.15[2] JD |
| Semi-amplitude | (K) | 10.10 ± 0.65[2] m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 0.33[2] MJ (104.3[2] M⊕) |
| Discovery information | ||
| Discovery date | October 19, 2009 | |
| Discoverer(s) | Lo Curto et al. | |
| Discovery method | Radial velocity (HARPS) | |
| Discovery site | La Silla Observatory | |
| Discovery status | Published[2] | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 215497 c is an extrasolar planet which orbits the G-type main sequence star HD 215497, located approximately 142 light years away in the constellation Tucana. This planet has at least one-thirds the mass of Jupiter and takes 568 days to orbit the star at a semimajor axis of 1.282 AU.[2] This planet was detected by HARPS on October 19, 2009, together with 29 other planets, including HD 215497 b.
References
- 1 2 3 4 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- 1 2 3 4 5 6 7 8 9 10 11 12 13 Lo Curto, G.; et al. (2010). "The HARPS search for southern extra-solar planets. XXII. Multiple planet systems from the HARPS volume limited sample". Astronomy and Astrophysics 512. A48. Bibcode:2010A&A...512A..48L. doi:10.1051/0004-6361/200913523.
Coordinates: 
22h 46m 36.7543s, −56° 35′ 58.322″
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