The Intimate Universe by Marek Kukula

Author:Marek Kukula
Language: eng
Format: epub
Publisher: Quercus Publishing Ltd
Published: 2015-08-25T16:00:00+00:00

As their name suggests, Hot Jupiters are gas giant planets, like Jupiter and Saturn in our own Solar System. But whereas these familiar worlds orbit far from the Sun, Hot Jupiters are found incredibly close to their parent stars, often in orbits even tighter than that of Mercury. However, giant planets like this can only form far from their parent star, where conditions are cold enough for them to acquire large amounts of hydrogen and helium gas. In order for planets like this to be found so close to their parent stars, they must have moved there after they formed (see also Written in the Stars, page 308). Some of these planets are so close that they have become tidally locked to their star, with an axial rotation period identical to their year (the time it takes them to make one complete orbit). With one hemisphere bathed in permanent, scorching daylight and the other plunged into everlasting night, the weather on these strange worlds must be alien in the extreme, perhaps with howling winds transporting heat from the incandescent day-lit side to the frozen darkness of the opposite hemisphere.

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