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HD 189269


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An Eccentric Hot Jupiter Orbiting the Subgiant HD 185269
We report the detection of a Jupiter-mass planet in a 6.838 day orbitaround the 1.28 Msolar subgiant HD 185269. The eccentricityof HD 185269b (e=0.30) is unusually large compared to other planetswithin 0.1 AU of their stars. Photometric observations demonstrate thatthe star is constant to +/-0.0001 mag on the radial velocity period,strengthening our interpretation of a planetary companion. This planetwas detected as part of our radial velocity survey of evolved starslocated on the subgiant branch of the H-R diagram-also known as theHertzsprung gap. These stars, which have masses between 1.2 and 2.5Msolar, play an important role in the investigation of thefrequency of extrasolar planets as a function of stellar mass.Based on observations obtained at the Lick Observatory, which isoperated by the University of California.

The absolute spectrophotometry of carbon stars. VI. Abundance of carbon in the atmospheres.
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观测天体数据

星座:人馬座
右阿森松:20h00m44.06s
赤纬:-39°53'20.9"
视星:9.993
右阿森松适当运动:16.1
赤纬适当运动:2.1
B-T magnitude:10.459
V-T magnitude:10.032

目录:
适当名称   (Edit)
HD 1989HD 189269
TYCHO-2 2000TYC 7951-382-1
USNO-A2.0USNO-A2 0450-38441139
HIPHIP 98506

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