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.

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. [5] [1] As of June 2017, it is the hottest known exoplanet. [6]

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.

2020年1月24日 · New observations show that the hottest of them all is stranger still, prone to planetwide meltdowns so severe they tear apart the molecules that make up its atmosphere. Called KELT-9b, the planet is an ultra-hot Jupiter, one of several varieties of exoplanets - planets around other stars - found in our galaxy.

Exploring the Atmospheric Dynamics of the Extreme Ultrahot Jupiter KELT-9b Using TESS Photometry Wong et al. 2020 | Reference Overview Search for stellar companions of exoplanet host stars by exploring the second ESA-Gaia data release

2022年11月21日 · We analyse a high signal-to-noise ratio (SNR) spectrum of KELT-9 (HD 195689), which hosts the hottest and most rapidly evaporating planet found to-date, with the aim of looking for composition anomalies caused by accretion of planetary material. KELT-9b is an intensely irradiated ultra-hot Jupiter around an A0-type star (Gaudi et al. 2017).

2020年6月30日 · Astronomers have found the hottest known exoplanet, a world where temperatures exceed those on the surface of most stars. The Jupiter-like planet, known as KELT-9b, zips around its hot host star...

2018年8月15日 · With an equilibrium temperature of about 4,050 kelvin 4, the exoplanet KELT-9b (also known as HD 195689b) is an archetype of the class of ultrahot Jupiters that straddle the transition between...

Centro Astronómico Alto Turia (CAAT). MPC J57. ExoClock - KELT-9b, check data upload to ExoClock about KELT-9b.