HD 142415 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 142415 | |
| Constellation | Norma | |
| Right ascension | (α) | 15h 57m 40.7907s |
| Declination | (δ) | −60° 12′ 00.926″ |
| Distance | 113 ly (34.6 pc) | |
| Spectral type | G1V | |
| Orbital elements | ||
| Semi-major axis | (a) | 1.07 AU |
| Periastron | (q) | 0.535 AU |
| Apastron | (Q) | 1.605 AU |
| Eccentricity | (e) | 0.5 |
| Orbital period | (P) | 386.3±1.6 d (1.058 y) |
| Orbital speed | (υ) | 30.2 km/s |
| Argument of periastron |
(ω) | 255 ± 4° |
| Time of periastron | (T0) | 2,451,519 ± 4 JD |
| Semi-amplitude | (K) | 51.3 ± 2.3 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 1.69 MJ (537 M⊕) |
| Discovery information | ||
| Discovery date | 30 June 2003 | |
| Discoverer(s) | Mayor et al. | |
| Discovery method | doppler spectroscopy (CORALIE) | |
| Discovery site | La Silla Observatory | |
| Discovery status | Published | |
| Other designations | ||
| HIP 78169 b | ||
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 142415 b is an exoplanet with the semi-amplitude of 51.3 ± 2.3 m/s. This indicates the minimum mass of 1.69 Jupiter mass, an orbital period of 386.3 days, and the semi-major axis of 1.07 astronomical units based from its stellar mass. The wild, oval pathed wobble of the star used by Doppler spectrometer indicates that the orbit of the planet is highly eccentric at around 50%.[1]
The planet was discovered in La Silla Observatory on 30 June 2003 by Mayor, who used the CORALIE spectrograph.
See also
References
- ↑ Mayor, M.; et al. (2004). "The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE". Astronomy and Astrophysics. 415 (1): 391–402. arXiv:astro-ph/0310316
. Bibcode:2004A&A...415..391M. doi:10.1051/0004-6361:20034250.
External links
- "HD 142415". Exoplanets.
Coordinates: 
15h 57m 40.7907s, −60° 12′ 00.926″
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