| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| 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 | ||
| Semimajor 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. | |
| Detection method | Doppler spectroscopy | |
| Discovery status | ||
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
HD 181342 b is an extrasolar planet orbiting the K-type star HD 181342 approximately 361 lightyears away in the constellation Sagittarius.[1]