HD 168746 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 168746 | |
| Constellation | Serpens | |
| Right ascension | (α) | 18h 21m 49.7832s |
| Declination | (δ) | –11° 55′ 21.660″ |
| Distance | 140.6 ly (43.12 pc) | |
| Spectral type | G5V | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.065 AU |
| Periastron | (q) | 0.060 AU |
| Apastron | (Q) | 0.070 AU |
| Eccentricity | (e) | 0.081 ± 0.029 |
| Orbital period | (P) | 6.403 ± 0.001 d (0.01753 y) |
| Orbital speed | (υ) | 110 km/s |
| Argument of periastron |
(ω) | 16.30 ± 20.88° |
| Time of periastron | (T0) | 2,451,994.7 ± 0.4 JD |
| Semi-amplitude | (K) | 28.6 ± 1.7 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 0.23 MJ (73 M⊕) |
| Discovery information | ||
| Discovery date | April 15, 2000[1] | |
| Discoverer(s) | Pepe, Mayor, Galland et al. | |
| Discovery method | Doppler spectroscopy (CORALIE) | |
| Discovery site | La Silla Observatory | |
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 168746 b is an extrasolar planet orbiting the star HD 168746.[1] It has a minimum mass about one fourth that of Jupiter, so it is most likely a gas giant. It orbits very near the star in a so-called "torch orbit" completing one revolution in only about six and half days.
See also
References
- 1 2 "Exoplanets Galore!" (Press release). Garching, Germany: European Southern Observatory. April 15, 2000. Retrieved December 30, 2012.
- Pepe; Mayor, M.; Galland, F.; Naef, D.; Queloz, D.; Santos, N. C.; Udry, S.; Burnet, M. (2002). "The CORALIE survey for southern extra-solar planets VII Two short-period Saturnian companions to HD 108147 and HD 168746". Astronomy and Astrophysics. 388 (2): 632–638. arXiv:astro-ph/0202457
. Bibcode:2002A&A...388..632P. doi:10.1051/0004-6361:20020433.
External links
- "HD 168746". Exoplanets.
Coordinates: 
18h 21m 49.7832s, −11° 55′ 21.660″
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