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.

KELT-9b 是目前已知的 太陽系外行星 之中，表面溫度最高的 熱木星，它的晝半球表面溫度高達4,600 K（4,330 °C），高於所有光譜型 M型 恆星與大部分K型恆星 [2]。

KELT-9b是天鹅座中的一颗行星，距离地球650光年。 它的主恒星体积是太阳的3.5倍，气温高达9897℃，是太阳 (5600℃)的2倍。 由于KELT-9b离其主恒星非常近，公转周期只有1.5天，因此星球上的气温也很高，气温高达4327℃。 是迄今为止最热的行星。

Exploring the Atmospheric Dynamics of the Extreme Ultrahot Jupiter KELT-9b Using TESS Photometry Search for stellar companions of exoplanet host stars by exploring the second ESA-Gaia data release

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 …

2020年7月4日 · The previously-discovered planet, known as KELT-9 b and HD 195689 b, is about twice the size of Jupiter and has a dayside temperature that reaches around 7,800º Fahrenheit/4,300º Celsius, which...

2020年6月30日 · Explore KELT-9 b, one of the hottest planets known. Observations from NASA's Transiting Exoplanet Survey Satellite (TESS) have revealed new details about the planet’s environment. The planet follows a close, polar orbit around a squashed star with different surface temperatures, factors that make peculiar seasons for KELT-9 b.

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 …

KELT-9 b is an ultra-hot Jupiter transiting a rapidly rotating, oblate early-A-type star in a polar orbit. We model the effect of rapid stellar rotation on KELT-9 b’s transit light curve using photometry from the Transiting Exoplanet Survey Satellite to constrain the planet’s true spin–orbit angle and to explore how KELT-9 b may be ...

KELT-9 b is an exoplanet orbiting the star HD 195689, located about 670.8 light-years (205.7 pc) away from Solar System. Its discovery was publicly announced on 2017. The host star HD 195689 has apparent magnitude of 7.6, with absolute magnitude of 1.0.

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...

2022年7月15日 · KELT-9 是一颗距离地球大约670光年的恒星，这颗恒星的质量为太阳质量的2.53倍，半径是太阳半径的2.36倍，亮度是太阳亮度的53倍，其表面温度达到10170±450K，是一颗又大又亮的恒星。

2020年1月28日 · KELT-9b is a giant exoplanet hotter than some stars, reaching 7,800 degrees Fahrenheit on its surface. Yet, it somehow has an atmosphere.

KELT-9 b, the hottest known exoplanet, with T<SUB>eq</SUB> ~ 4400 K, is the archetype of a new planet class known as ultra-hot Jupiters. These exoplanets are presumed to have an atmosphere dominated by neutral and ionized atomic species.

2024年10月10日 · KELT-9 b is a Confirmed extrasolar planet (exoplanet) that orbits the star HIP 101252 in the constellation of Cygnus

2018年8月15日 · The research team used emission spectroscopy to look for signs of iron and titanium in recordings made of KELT-9b with HARPS-N last year, and have now reported that the planet's atmosphere contains both in ionic and neutral forms.

Kelt-9b is an extrasolar planet orbits the star Kelt-9. It is a hot Jupiter that is one of the hottest planets known. The planet is also one of the largest planets known, and is located 670 light years away from earth. Kelt-9b is also tidally locked to its host star, meaning that one side always...

KELT-9b es el exoplaneta gigante de gas más caliente conocido, con una temperatura diurna de entre 4.050 y 4.600 K (la temperatura de la superficie supera los 3790 grados Celsius), lo que lo hace más caliente que las estrellas de tipo M y muchas estrellas de tipo K. 1 Orbita HD 195689 (o KELT-9), una estrella de secuencia principal de tipo B …

KELT-9 b, the hottest known exoplanet, with Teq ~ 4400 K, is the archetype of a new planet class known as ultra-hot Jupiters. These exoplanets are presumed to have an atmosphere dominated by neutral and ionized atomic species.