HD 215497 b
From Infogalactic: the planetary knowledge core
| 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) | 0.047[2] AU |
| Eccentricity | (e) | 0.16 ± 0.09[2] |
| Orbital period | (P) | 3.93404 ± 0.00066[2] d |
| Argument of periastron |
(ω) | 96 ± 34[2]° |
| Time of periastron | (T0) | 2,454,858.95 ± 0.37[2] JD |
| Semi-amplitude | (K) | 2.98 ± 0.34[2] m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 0.02[2] MJ (6.6[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 b is an extrasolar planet which orbits the K-type main sequence star HD 215497, located approximately 142 light years away in the constellation Tucana. This planet has at least 6.6 times the mass of Earth.[2] This planet was detected by HARPS on October 19, 2009, together with 29 other planets, including HD 215497 c.
References
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22h 46m 36.7543s, −56° 35′ 58.322″
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