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HD 212301


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The HARPS search for southern extra-solar planets. VII. A very hot Jupiter orbiting HD 212301
We report the discovery of a planetary companion orbiting the F8V starHD 212301. This is the first "very hot Jupiter" discovered by a radialvelocity survey. The detection was made possible by the HARPSspectrograph installed at the ESO 3.6 m telescope in Cerro La Silla,Chile. The data were carefully analyzed to exclude activity inducedeffects on the measured radial velocities. Although no transit has beendetected, radial velocity oscillations are best explained with a planetof mass m_2 sin{i}=0.45 M_Jupiter orbiting the star at 0.036 AU with aperiod of 2.246 days.

The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ˜14 000 F and G dwarfs
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Stroemgren photometry of F- and G-type stars brighter than V = 9.6. I. UVBY photometry
Within the framework of a large photometric observing program, designedto investigate the Galaxy's structure and evolution, Hβ photometryis being made for about 9000 stars. As a by-product, supplementary uvbyphotometry has been made. The results are presented in a cataloguecontaining 6924 uvby observations of 6190 stars, all south ofδ=+38deg. The overall internal rms errors of one observation(transformed to the standard system) of a program star in the interval6.5

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Observation and Astrometry data

Constellation:Octant
Right ascension:22h27m30.92s
Declination:-77°43'04.5"
Apparent magnitude:7.773
Distance:52.715 parsecs
Proper motion RA:77.1
Proper motion Dec:-92.9
B-T magnitude:8.429
V-T magnitude:7.828

Catalogs and designations:
Proper Names
HD 1989HD 212301
TYCHO-2 2000TYC 9479-407-1
USNO-A2.0USNO-A2 0075-06951289
HIPHIP 110852

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