Astronomy:HD 12661 b
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Short description: Extrasolar planet in the constellation Aries
.jpg) The exoplanet HD 12661 b (min mass ~2.3 MJ) as rendered by Celestia | |
| Discovery | |
|---|---|
| Discovered by | Fischer et al. |
| Discovery site | California & Carnegie Planet Search  USA |
| Discovery date | April 4, 2001 |
| Radial velocity | |
| Orbital characteristics | |
| 0.834 ± 0.048 AU (124,800,000 ± 7,200,000 km) | |
| Eccentricity | 0.361 ± 0.011 |
| Orbital period | 262.53 ± 0.27 d |
| astron|astron|helion}} | 2,450,214.1 ± 2.9 |
| 296.3±2.6 | |
| Semi-amplitude | 74.19 ± 0.85 |
| Star | HD 12661 |
| Physical characteristics | |
| Mass | >2.34 ± 0.19 |♃|J}}}}}} |
HD 12661 b is a giant exoplanet two and a half times the mass of Jupiter orbiting around the star HD 12661.[1]
References
- ↑ Fischer, Debra A. et al. (2001). "Planetary Companions to HD 12661, HD 92788, and HD 38529 and Variations in Keplerian Residuals of Extrasolar Planets". The Astrophysical Journal 551 (2): 1107–1118. doi:10.1086/320224. Bibcode: 2001ApJ...551.1107F.
- Butler et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. doi:10.1086/504701. Bibcode: 2006ApJ...646..505B.
Coordinates: 
02h 04m 34.36s, +25° 24′ 53″
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