HD 181433 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 181433 | |
| Constellation | Pavo | |
| Right ascension | (α) | 19h 25m 09.5663s[1] |
| Declination | (δ) | −66° 28′ 07.671″[1] |
| Apparent magnitude | (mV) | 8.38[1] |
| Distance | 87 ± 3[2] ly (26.8 ± 0.8 pc) | |
| Spectral type | K5V[3] | |
| Mass | (m) | 0.78[4] M☉ |
| Temperature | (T) | 4962 ± 134[4] K |
| Metallicity | [Fe/H] | 0.33 ± 0.13[4] |
| Orbital elements | ||
| Semi-major axis | (a) | 0.080[4] AU |
| Periastron | (q) | 0.048 AU |
| Apastron | (Q) | 0.111 AU |
| Eccentricity | (e) | 0.396[4] |
| Orbital period | (P) | 9.3743[4] d |
| Orbital speed | (υ) | 93 km/s |
| Argument of periastron |
(ω) | 202 ± 10[4]° |
| Time of periastron | (T0) | 2454542 ± 0.26[4] JD |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 0.0238[4] MJ (7.56 M⊕) |
| Discovery information | ||
| Discovery date | June 16, 2008[5] | |
| Discoverer(s) | Bouchy et al.[6] | |
| Discovery method | Doppler spectroscopy[5] | |
| Discovery site |  La Silla Observatory[5] | |
| Discovery status | Announced[5] | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 181433 b is an extrasolar planet located approximately 87 light years away[2] in the constellation of Pavo, orbiting the star HD 181433. This planet has mass at least 7.56 times that of Earth. This planet is classified as a super-Earth and orbits at 0.080 AU and varies only about 0.063 AU with an eccentricity of 0.396.[4] François Bouchy et al. have published a paper detailing the HD 181433 planetary system in Astronomy and Astrophysics.[6]
References
- 1 2 3 "NLTT 47732 -- High proper-motion star". SIMBAD. Retrieved 2008-10-02.
- 1 2 van Leeuwen, F. (2007). "HIP 95152". Hipparcos, the New Reduction: The Astrometric Catalogue. Retrieved 2008-10-02.
- ↑ ESA (1997). "HIP 95152". The Hipparcos and Tycho Catalogues: The Hipparcos Main Catalogue. Retrieved 2008-10-02.
- 1 2 3 4 5 6 7 8 9 10 Schneider, J. "Notes for Planet HD 181433 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-10-02.
- 1 2 3 4 "A Trio of Super-Earths" (Press release). ESO. 2008-06-16. Retrieved 2008-10-02.
- 1 2 Bouchy, F.; et al. (2009). "The HARPS search for southern extra-solar planets. XVII. Super-Earth and Neptune-mass planets in multiple planet systems HD 47186 and HD 181433". Astronomy and Astrophysics. 496 (2): 527–531. arXiv:0812.1608
. Bibcode:2009A&A...496..527B. doi:10.1051/0004-6361:200810669.
External links
- "HD 181433 b". Exoplanets.
Coordinates: 
19h 25m 09.5663s, −66° 28′ 07.671″
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