HD 47536 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 47536 | |
| Constellation | Canis Major | |
| Right ascension | (α) | 06h 37m 47.618s[1] |
| Declination | (δ) | −32° 20′ 23.04″[1] |
| Apparent magnitude | (mV) | 5.261 |
| Distance | 400 ± 10[1] ly (123 ± 3[1] pc) | |
| Spectral type | K0III | |
| Orbital elements | ||
| Semi-major axis | (a) | 1.61 AU (241 Gm) |
| 13.3 mas | ||
| Periastron | (q) | 1.26 AU (188 Gm) |
| Apastron | (Q) | 1.96 AU (293 Gm) |
| Eccentricity | (e) | 0.2 ± 0.08 |
| Orbital period | (P) | 430 d (1.18 y) |
| Orbital speed | (υ) | 40.8 km/s |
| Argument of periastron |
(ω) | 260.8 ± 23.7° |
| Time of periastron | (T0) | 2,451,599 ± 21.5 JD |
| Semi-amplitude | (K) | 113 ± 11 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 4.96 MJ |
| Discovery information | ||
| Discovery date | January 22, 2003[2] | |
| Discoverer(s) | Setiawan et al.[3] | |
| Discovery method | Radial velocity | |
| Discovery site |  Chile | |
| Discovery status | Published[3] | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 47536 b is an extrasolar planet located approximately 400 light-years away[1] in the constellation of Canis Major, orbiting the star HD 47536. The mass and semimajor axis are not exactly known, the mass can either be 4.96 or 9.67 MJ and semimajor axis can either be 1.61 or 2.25 AU, both depending on the mass of parent star. The orbital period about HD 47536 is 430 days or 1.18 years.
Its inclination and thereby true mass is being calculated via astrometry with Hubble. The astrometricians expect publication by mid-2009.[4]
See also
References
- 1 2 3 4 5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752
. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.Vizier catalog entry - ↑ "Distant World in Peril Discovered from La Silla" (Press release). Garching, Germany: European Southern Observatory. January 22, 2003. Retrieved December 30, 2012.
- 1 2 Setiawan, J.; et al. (2003). "Evidence of a sub-stellar companion around HD 47536". Astronomy and Astrophysics. 398 (2): L19–L23. Bibcode:2003A&A...398L..19S. doi:10.1051/0004-6361:20021846.
- ↑ Fritz Benedict, G.; McArthur, Barbara E.; Bean, Jacob L. (2008). "HST FGS astrometry - the value of fractional millisecond of arc precision". arXiv:0803.0296v1 [astro-ph].
External links
- "HD 47536". Exoplanets. Retrieved 2008-08-23.
Coordinates: 
06h 37m 47.6189s, −32° 20′ 23.045″
This article is issued from Wikipedia - version of the 3/11/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.