HD 224693 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 224693 | |
| Constellation | Cetus | |
| Right ascension | (α) | 23h 59m 53.833s[1] |
| Declination | (δ) | −22° 25′ 41.21″[1] |
| Distance | 320 ± 30[1] ly (98 ± 9[1] pc) | |
| Spectral type | G2IV | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.233 AU (34.9 Gm) |
| Periastron | (q) | 0.221 AU (33.1 Gm) |
| Apastron | (Q) | 0.245 AU (36.7 Gm) |
| Eccentricity | (e) | 0.05 ± 0.03 |
| Orbital period | (P) | 26.73 ± 0.02 d (0.07318 y) |
| Orbital speed | (υ) | 95.2 km/s |
| Argument of periastron |
(ω) | 6 ± 200° |
| Time of periastron | (T0) | 2453193.9 ± 3 JD |
| Semi-amplitude | (K) | 40.2 ± 2.0 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 0.71 MJ |
| Discovery information | ||
| Discovery date | April 17, 2006 | |
| Discoverer(s) | Johnson and NK2 consortium | |
| Discovery method | Doppler Spectroscopy | |
| Discovery site | Hawaii, USA | |
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 224693 b is an extrasolar planet orbiting the star HD 224693 every 27 days with a minimum mass 71% of Jupiter.[2]
See also
References
- 1 2 3 4 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
- ↑ Johnson, John Asher; et al. (2006). "The N2K Consortium. VI. Doppler Shifts without Templates and Three New Short-Period Planets". The Astrophysical Journal 647 (1): 600–611. arXiv:astro-ph/0604348. Bibcode:2006ApJ...647..600J. doi:10.1086/505173.
External links
- "HD 224693". Exoplanets.
Coordinates: 
23h 59m 53.8329s, −22° 25′ 41.208″
This article is issued from Wikipedia - version of the Friday, January 02, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.