HD 181342 b
Exoplanet | List of exoplanets | |
---|---|---|
Parent star | ||
Star | HD 181342 | |
Constellation | Sagittarius | |
Right ascension | (α) | 19h 21m 04s |
Declination | (δ) | −23° 37′ 10″ |
Apparent magnitude | (mV) | 7.55 |
Distance | 360.7 ± 24.5 ly (110.6 ± 7.5 pc) | |
Spectral type | K0III | |
Mass | (m) | 1.84 ± 0.13 M☉ |
Radius | (r) | 4.6 ± 0.1 R☉ |
Temperature | (T) | 5014 ± 44 K |
Metallicity | [Fe/H] | 0.26 ± 0.03 |
Age | 1.8 ± 0.4 Gyr | |
Orbital elements | ||
Semi-major axis | (a) | 1.78 ± 0.07 AU |
Eccentricity | (e) | 0.177 ± 0.057 |
Orbital period | (P) | 663 ± 29 d |
Physical characteristics | ||
Minimum mass | (m sin i) | 3.3 ± 0.2 MJ |
Discovery information | ||
Discovery date | 2010-03-17 | |
Discoverer(s) | Howard et al. | |
Discovery method | Doppler spectroscopy | |
Discovery status | ||
Database references | ||
Extrasolar Planets Encyclopaedia | data | |
SIMBAD | data | |
Exoplanet Archive | data | |
Open Exoplanet Catalogue | data |
HD 181342 b is an extrasolar planet orbiting the K-type star HD 181342 approximately 361 light years away in the constellation Sagittarius.[1]
See also
References
- ↑ Johnson, John Asher; et al. (2010). "Retired A Stars and Their Companions IV. Seven Jovian Exoplanets from Keck Observatory". Publications of the Astronomical Society of the Pacific. 122 (892): 701–711. arXiv:1003.3445 [astro-ph.EP]. Bibcode:2010PASP..122..701J. doi:10.1086/653809.
External links
- "HD 181342 b". The Extrasolar Planets Encyclopaedia.
Coordinates: 19h 21m 04s, −23° 37′ 10″
This article is issued from Wikipedia - version of the 8/7/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.