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Exoplanet orbiting HD 164595 From Wikipedia, the free encyclopedia
HD 164595 b is a confirmed exoplanet orbiting around a Sun-like star HD 164595 every 40 days some 94.36 light-years away. It was detected with the radial velocity technique with the SOPHIE echelle spectrograph. The planet has a minimal mass equivalent of 16 Earths.[1][2]
Discovery | |
---|---|
Discovered by | Courcol et al. |
Discovery date | 10 September 2015 |
Radial velocity | |
Orbital characteristics | |
0.23 AU (34,000,000 km)[1] | |
Eccentricity | 0.0880+0.1200 −0.0660[1] |
40.00±0.24[1] d | |
Star | HD 164595 |
Physical characteristics | |
Mass | 16.14±2.72[1] ME |
It is believed to be a Neptune-like gassy planet incapable of supporting life.[3][4] The planet has a minimal mass of 16 Earth masses.[1]
A recent (2016) radio signal at 11 GHz (2.7 cm wavelength) has been observed from the HD 164595 stellar system.[5][6] It is unknown which planet of that stellar system is involved, if any. It could instead be gravitational lensing from a more distant source.[6] SETI investigators are looking into it,[6][7][8] but the chances of the signal being from an extraterrestrial civilization are considered slim, at best,"[3] with SETI researcher Eric Korpela calling it "uninteresting".[9]
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