Talk about global warming
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Started by pj - July 3, 2020, 3:04 p.m.

One strange hot place.

https://tinyurl.com/ybdfke6h

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By metmike - July 3, 2020, 5:40 p.m.
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Wow!

Thanks pj,  the whole thing is mind boggling. Funny too how this planet has seasons(If you really want to call them that) which last.............9 hours long!

The fact that we can detect all this stuff from places like this one 670 light years away is even more mind bogging regarding humans progress considering that Capernicus told us that the earth and planets revolved around the sun, not everything revolved around the earth just 500 years ago!

Nicolaus Copernicus

https://en.wikipedia.org/wiki/Nicolaus_Copernicus

The publication of Copernicus' model in his book De revolutionibus orbium coelestium (On the Revolutions of the Celestial Spheres), just before his death in 1543, was a major event in the history of science, triggering the Copernican Revolution and making a pioneering contribution to the Scientific Revolution.[7]


My 94 year old dad has seen more science, medical and technological advancements during his life time than the entire human race for thousands of years previous to him being born.

By metmike - July 3, 2020, 5:42 p.m.
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Here's another link they provide with even more awesome stuff on Kelt-9.

A bunch of simulations to illustrate the relationship between this planet and  the star.


https://svs.gsfc.nasa.gov/13635

By metmike - July 3, 2020, 9:29 p.m.
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https://en.wikipedia.org/wiki/KELT-9b


KELT-9b is an exoplanet—more specifically, an ultra-hot Jupiter—that orbits the late B-type/early A-type star KELT-9,[2] located about 670 light-years from Earth.[2] Detected using the Kilodegree Extremely Little Telescope, KELT-9b was announced in 2016.[3

The surface temperature of the host star, KELT-9, is 10,170 K, unusually hot for a star with a transiting planet. Prior to the discovery of KELT-9b, only six A-type stars were known to have planets, of which the warmest, WASP-33, is significantly cooler at 7,430 K; no B-type stars were previously known to host planets. KELT-9, classified as either B9.5-A0[1] or A1,[4] could be the first B-type star known to have a planet. KELT-9b occupies a circular but strongly inclined orbit a mere 0.03462 AU from KELT-9 with an orbital period of less than 1.5 days


 

Exoplanet KELT-9b orbits host star KELT-9

KELT-9b is a relatively large giant planet at about 2.8 times the mass of Jupiter; however, given that its radius is nearly twice that of Jupiter, its density is less than half that of Jupiter. Like many hot Jupiters, KELT-9b is tidally locked with its host star.[6]The outer boundary of its atmosphere nearly reaches its Roche lobe, implying that 

the planet is experiencing rapid atmospheric escape[7] driven by the extreme amount of radiation it receives from its host star.[6][5]. In 2020, atmosphere loss rate was measured to be equal to 18 - 68 Earth masses per billion years.[8]

As of January 2020, KELT-9b is one of the hottest known exoplanets, with dayside temperatures approaching 4,600 K, warmer than many low-mass stars.[1][2] Molecules on the day side are broken into their component atoms, such that normally sequestered refractory elements can exist as atomic species, including neutral and singly ionized atomic iron[9] (Fe and Fe+) and singly ionized titanium (Ti+),[10] only to temporarily reform once they reach the cooler night side.

metmike: The fact that we know these things(not accurately but have reasonable scientific estimates) is mind boggling!