Astronomy:HD 27894 b
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Short description: Extrasolar gas giant planet in the constellation Reticulum
| Discovery | |
|---|---|
| Discovered by | Moutou, Mayor, Bouchy et al. |
| Discovery date | 15 Feb 2005 |
| Radial velocity | |
| Orbital characteristics | |
| 0.1221 ± 0.0071 AU (18,270,000 ± 1,060,000 km) | |
| Eccentricity | 0.049±0.08 |
| Orbital period | 17.991±0.007 d |
| astron|astron|helion}} | 2,453,275.46±0.48 |
| 132.9±9.7 | |
| Semi-amplitude | 58.1±0.5 |
| Star | HD 27894 |
| Physical characteristics | |
| Mass | >0.618±0.088 |♃|J}}}}}} (>196 M⊕) |
HD 27894 b is a gas giant with a mass at least two thirds that of Jupiter, or twice that of Saturn. The distance from the planet to the star is one third compared that of Mercury from the Sun, and it takes almost exactly 18 days to complete one roughly circular orbit.[1]
References
- ↑ Moutou, C. et al. (2015). "The HARPS search for southern extra-solar planets IV. Three close-in planets around HD 2638, HD 27894 and HD 63454". Astronomy and Astrophysics 439 (1): 367–373. doi:10.1051/0004-6361:20052826. Bibcode: 2005A&A...439..367M. http://www.aanda.org/articles/aa/full/2005/31/aa2826-05/aa2826-05.html.
External links
Coordinates: 
04h 20m 47.0473s, −59° 24′ 39.014″
de:HD 27894 b
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