HD 1461 b
Exoplanet | List of exoplanets | |
---|---|---|
Parent star | ||
Star | HD 1461 | |
Constellation | Cetus[1] | |
Right ascension | (α) | 00h 18m 41.8674s[2] |
Declination | (δ) | −08° 03′ 10.8058″[2] |
Apparent magnitude | (mV) | 6.47 |
Distance | ±0.1 76.5[2] ly (±0.03 23.47[2] pc) | |
Spectral type | G0V | |
Mass | (m) | 1.08 ± 0.04 M☉ |
Radius | (r) | 1.095 ± 0.026 R☉ |
Temperature | (T) | 5765 ± 18 K |
Metallicity | [Fe/H] | 0.19 ± 0.01 |
Age | 6.3 Gyr | |
Orbital elements | ||
Semi-major axis | (a) | ±0.0022 0.0634[3] AU |
Eccentricity | (e) | <0.131[3] |
Orbital period | (P) | 52±0.00045 5.771[3] d |
Semi-amplitude | (K) | ±0.15 2.28[3] m/s |
Physical characteristics | ||
Minimum mass | (m sin i) | ±0.61 6.44[3] M⊕ |
Discovery information | ||
Discovery date | 2009-12-14 | |
Discoverer(s) | Vogt et al. | |
Discovery method | Radial velocity | |
Discovery site | Keck Observatory Anglo-Australian Observatory | |
Discovery status | Published[4] | |
Database references | ||
Extrasolar Planets Encyclopaedia | data | |
SIMBAD | data | |
Exoplanet Archive | data | |
Open Exoplanet Catalogue | data |
HD 1461 b is an extrasolar planet, orbiting the 6th magnitude G-type star HD 1461, 76.5 light years away in the constellation Cetus. This planet has a minimum mass 6.4 times that of Earth and orbits at a distance of 0.0634 AU with an eccentricity of less than 0.131. It is currently unknown whether the planet is a gas giant like Uranus or Neptune, or has terrestrial composition like CoRoT-7 b. This planet was announced on 13 December 2009 after it was discovered using radial velocity measurements taken at the Keck and Anglo-Australian Observatories.[4][5]
References
- ↑ Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Vizier query form
- 1 2 3 4 Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- 1 2 3 4 5 Díaz, R. F.; et al. (2016). "The HARPS search for southern extra-solar planets. XXXVIII. Bayesian re-analysis of three systems. New super-Earths, unconfirmed signals, and magnetic cycles". Astronomy and Astrophysics. 585. A134. arXiv:1510.06446. Bibcode:2016A&A...585A.134D. doi:10.1051/0004-6361/201526729.
- 1 2 Rivera, Eugenio J.; et al. (2010). "A Super-Earth Orbiting the Nearby Sun-like Star HD 1461". The Astrophysical Journal. 708 (2): 1492–1499. arXiv:0912.2566. Bibcode:2010ApJ...708.1492R. doi:10.1088/0004-637X/708/2/1492.
- ↑ Tim Stephens (2009-12-13). "New planet discoveries suggest low-mass planets are common around nearby stars". UCSC News. UC Santa Cruz. Retrieved 2018-10-06.
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