From the Extrasolar Planets Encyclopaedia : http://exoplanet.eu

Planet : BD+20 1790 b

THE PLANET

- Basic data :
	Name BD+20 1790 b Discovered in 2009     M.sin i 6.54 (± 0.57) MJ  ref. Semi major axis 0.066 (± 0.001) AU  ref. Orbital period 7.7834 (± 0.0004) days  ref. Eccentricity 0.05 (± 0.02)    ref. ω 200.4 (± 21.8) deg.  ref. Tperi 3085.8 (± 0.5) JD 2.450.000  ref. Update 22/03/10

- No molecule detected

- Remarks :

22 Mar. 2010: As Figueira et al. (2010) find "a clear correlation between radial-velocities and bisector span", indicating that "this evidence points towards a stellar origin of the radial-velocity variations of the star instead of a barycentric movement of the star, and repudiates the reported detection of a hot-Jupiter", this planet is (provisionnally?) marked as "controversial". 17 Dec. 2009: Herman Obispo et al (2010) give also a slightly different oribit with Mpl = 6.15 ± 0.6 MJup and e = 0.14 ± 0.4

7 related publications :  (sort by author)  (sort by date)

THE STAR

- Basic data :			- More data :    - Basic data (from Simbad) - Most recent ref (from ADS)
	Name BD+20 1790 Distance 25.4 (± 4) pc  ref. Spectral Type K5V     Apparent Magnitude V 9.93     Mass 0.63 (± 0.09) Msun  ref. Age 0.057 (± 0.023) Gyr  ref. Effective Temperature 4410 K  ref. Radius 0.71 (± 0.03) Rsun  ref. Metallicity [Fe/H] 0.3 (± 0.2)    ref. Right Asc. Coord. 07 23 44     Decl. Coord. +20 24 51