KELT-9b is an exoplanet and ultra-hot Jupiter that orbits the late B-type/early A-type star KELT-9, [4] located about 670 light-years from Earth. [4] Detected using the Kilodegree Extremely Little Telescope , the discovery of KELT-9b was announced in 2016.

2024年10月24日 · KELT-9 b is a gas giant exoplanet that orbits a B-type star. Its mass is 2.88 Jupiters, it takes 1.5 days to complete one orbit of its star, and is 0.03462 AU from its star. Its discovery was announced in 2017.

2020年1月24日 · Called KELT-9b, the planet is an ultra-hot Jupiter, one of several varieties of exoplanets — planets around other stars — found in our galaxy. It weighs in at nearly three times the mass of our own Jupiter and orbits a star some 670 light-years away.

2020年1月28日 · One such planet, KELT-9b, is an ultrahot Jupiter that resides 670 light-years from Earth. It weighs about three times the mass of Jupiter and boasts surface temperatures of 7,800 degrees...

2024年11月8日 · KELT-9b is a gas giant 2.8 times more massive than Jupiter, but only half as dense. Scientists would expect the planet to have a smaller radius, but the extreme radiation from its host star has caused the planet's atmosphere to puff up like a balloon.

2017年6月5日 · KELT-9b is as hot as a star - warmer, in fact, than some - but unlike a star, the planet does not have a nuclear core that fuses hydrogen into helium. Astronomers spotted the planet three years...

450 New Exoplanet Ephemerides from Ground and Space Observations. A spectral survey of an ultra-hot Jupiter. Detection of metals in the transmission spectrum of KELT-9 b.

2017年6月6日 · KELT-9b is a gas giant 2.8 times more massive than Jupiter but only half as dense. The planet runs a close orbit to KELT-9, the hottest, most massive and brightest star yet found to host a transiting giant planet.

2022年11月21日 · KELT-9b is an ultra-hot Jupiter observed to be undergoing extreme mass-loss. Its A0-type host star has a radiative envelope, which makes its surface layers prone to retaining recently accreted material.

2017年6月5日 · Scientists have found one of the craziest exoplanets yet. It's a huge gas giant not unlike our Solar System's own Jupiter, but it travels around its star in just 1.5 days, with a surface hotter than most stars. The planet orbits a blazing star called KELT-9, …