HD 141937 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 141937 | |
| Constellation | Libra | |
| Right ascension | (α) | 15h 52m 17.5474s |
| Declination | (δ) | −18° 26′ 09.834″ |
| Distance | 109 ly (33.5 pc) | |
| Spectral type | G2/G3V | |
| Orbital elements | ||
| Semi-major axis | (a) | 1.52 AU |
| Periastron | (q) | 0.90 AU |
| Apastron | (Q) | 2.14 AU |
| Eccentricity | (e) | 0.41 ± 0.01 |
| Orbital period | (P) | 653.2 ± 1.2 d (1.788 y) |
| Orbital speed | (υ) | 25.4 km/s |
| Argument of periastron |
(ω) | 187.72 ± 0.8° |
| Time of periastron | (T0) | 2,451,847.4 ± 2.0 JD |
| Semi-amplitude | (K) | 234.5 ± 6.4 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 9.68 MJ (3080 M⊕) |
| Discovery information | ||
| Discovery date | April 4, 2001[1] | |
| Discoverer(s) | Udry et al. | |
| Discovery method | radial velocity (CORALIE) | |
| Discovery site | La Silla Observatory | |
| Discovery status | Published | |
| Other designations | ||
| HIP 77740 b | ||
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 141937 b is an extrasolar planet discovered in April 2001[1] with mass of 9.7 times Jupiter. The mass is minimum since the inclination of the orbit is unknown, which will probably be a brown dwarf instead if the true mass is known. 653-day orbit would place the distance one and a half times farther away from the star as Earth is from the Sun with high eccentricity of 41%.
See also
References
- 1 2 "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 29, 2012.
- Udry; Mayor, M.; Naef, D.; Pepe, F.; Queloz, D.; Santos, N. C.; Burnet, M. (2002). "The CORALIE survey for southern extra-solar planets VIII. The very low-mass companions of HD141937, HD162020, HD168443, HD202206: brown dwarfs or superplanets?". Astronomy and Astrophysics. 390 (1): 267–279. arXiv:astro-ph/0202458
. Bibcode:2002A&A...390..267U. doi:10.1051/0004-6361:20020685.
External links
- "HD 141937". Exoplanets.
Coordinates: 
15h 52m 17.5474s, −18° 26′ 09.834″
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