HD 13189 b is an exoplanet that revolves around the star HD 13189 in the constellation Triangle , and located about 603 light years from Earth [2] .
| HD 13189 b | |
|---|---|
| Exoplanet | |
 HD 13189 b by the artist . | |
| Parent star | |
| Star | HD 13189 |
| Constellation | Triangle |
| Right Ascension ( α ) | 02 h 09 m 40.17260 s |
| Declination ( δ ) | + 32 ° 18 ′ 59.1649 ″ |
| Visible magnitude ( m V ) | +7.57 [1] |
| Distance | 603 St. of the year (185 pc ) |
| Spectral class | K2 [1] |
| Metallicity ([Fe / H]) | −0.58 ± 0.04 |
| Elements of the orbit | |
| Semimajor axis ( a ) | 1.85 ± 0.35 a. e. |
| Eccentricity ( e ) | 0.28 ± 0.06 |
| Orbital Period ( P ) | 471.6 ± 6 days |
| Pericenter Argument ( ω ) | 160.7 ± 12 ° |
| Pericenter Time ( T 0 ) | 2452327.9 ± 20.2 JD |
| Radial half-amplitude ( K ) star speed | 6.8 ± 1.5 m / s |
| physical characteristics | |
| Weight ( m ) | 4.5 ± 2.5 [1] M J |
| Minimum Weight ( m sin i ) | 8 M J |
| Radius ( r ) | ? R j |
| Discovery Information | |
| opening date | July 2, 2005 |
| Discoverer (s) | Hatzes et al . |
| Detection method | Doppler Method |
| Opening place | Texas , USA |
| Opening status | Posted by |
Features
The planet is a massive gas giant or even a light brown dwarf , orbiting an orange giant of spectral class K2 [1] . The mass of the planet exceeds the mass of Jupiter by 8-20 times. The object is drawn at an average distance of 1.85 AU from the parent star and makes a complete revolution in 472 Earth days. The planet’s orbit has a noticeable eccentricity [1] .
The surface temperature of the planet must be very high, since HD 13189 is an orange giant and emits 4,000 times more light than the Sun [1] .
See also
- 6 Lynx b
- 79 China b
- 11 Ursa Minor b
- 14 Andromeda b
Notes
- ↑ 1 2 3 4 5 6 Schneider, J .. The Extrasolar Planets Encyclopaedia. "Notes for planet HD 13189 b . " Retrieved 2010-11-28
- ↑ Extrasolar Visions - HD 13189 (inaccessible link) . Archived on June 5, 2011.
Links
- Notes for star HD 13189 . The Extrasolar Planets Encyclopaedia . Date of treatment December 21, 2007. Archived on September 29, 2012.
- Notes for planet HD 13189 b . The Extrasolar Planets Encyclopaedia . Date of treatment December 21, 2007. Archived on September 29, 2012.
- HD 13189 - Red giant (inaccessible link) . Extrasolar Visions . Date of treatment December 21, 2007. Archived June 5, 2011.
- HD 13189 B - Brown dwarf . Extrasolar Visions . Date of treatment December 21, 2007. Archived June 5, 2011.