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For the very hottest gas giants, with temperatures above 1400 K (2100 °F, 1100 °C) or cooler planets with lower gravity than Jupiter, the silicate and iron cloud decks are predicted to lie high up in the atmosphere. The predicted Bond albedo of a class V planet around a Sun-like star is 0.55, due to reflection by the cloud decks.
There are three inner planets and an outer gas giant in the habitable zone. The innermost planet, WASP-47e, is a large terrestrial planet of 6.83 Earth masses and 1.8 Earth radii; the hot Jupiter, b, is little heavier than Jupiter, but about 12.63 Earth radii; a final hot Neptune, c, is 15.2 Earth masses and 3.6 Earth radii. [34]
The term gas giant was coined in 1952 by the science fiction writer James Blish [6] and was originally used to refer to all giant planets.It is, arguably, something of a misnomer because throughout most of the volume of all giant planets, the pressure is so high that matter is not in gaseous form. [7]
The gas giants in our solar system — Jupiter, Saturn, Uranus and Neptune — are much denser. This giant gas planet is as fluffy and puffy as cotton candy Skip to main content
The surface temperature is 10,170 K (9,897 °C; 17,846 °F), 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 (7,157 °C; 12,914 °F); no B-type stars were previously known to host planets.
Located in the Kepler-90 system with eight known exoplanets, whose architecture is similar to that of the Solar System, with rocky planets being closer to the star and gas giants being more distant. This planet is located at 1 AU from its star, which is within the habitable zone of Kepler-90 and thus could theoretically have a habitable Earth ...
The stars 51 Ophiuchi and Phi Leonis rotate at 267 ± 5 km/s [136] and ~ 254 km/s [137] (respectively) and have discs of dust and gas but no planets have been detected yet. Hottest star with a planet PSR B0943+10 b and c: PSR B0943+10: 3 100 000 K [138] Blackbody temperature of a small emitting area at the poles. [138] Suggested to actually be ...
Beginning in June, the planet notched month after month of warmer-than-usual conditions, with July and August 2023 coming in as the warmest two months ever recorded, according to the Copernicus ...