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HD 27894 b

Coordinates: Sky map 04h 20m 47.0473s, −59° 24′ 39.014″
From Wikipedia, the free encyclopedia
HD 27894 b
Discovery
Discovered byMoutou, Mayor,
Bouchy et al.
Discovery date15 Feb 2005
Radial velocity
Orbital characteristics
0.1221 ± 0.0071 AU (18,270,000 ± 1,060,000 km)
Eccentricity0.049±0.08
17.991±0.007 d
2,453,275.46±0.48
132.9±9.7
Semi-amplitude58.1±0.5
StarHD 27894
Physical characteristics
Mass>0.618±0.088 MJ
(>196 ME)

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

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  1. ^ 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. arXiv:1411.7048. Bibcode:2005A&A...439..367M. doi:10.1051/0004-6361:20052826.
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