Hot Jupiters, sometimes also called "roaster planets", are a class of gas giant exoplanets that are inferred to be physically similar to Jupiter but that have very short orbital period (<10 days). (Our Jupiter has a mass and radius of 317.828 and 10.9733 times the … The diameter of Mercury is 4,879.4 km, while the diameter of Jupiter is 142,984 km. It can be as cold as -290 degrees Fahrenheit (-179 degrees Celsius) on Mercury at night. Jupiter is hot and wet, which means that Jupiter has the effect of increasing activity and the wetness creates unity of purpose causing this "collecting" effect. In the chart it shows where prosperity is most likely. But unlike Jupiter, which is five times as far from the Sun as Earth and orbits the Sun in 12 years, 51 Peg is twenty times closer to its star than Earth is to the Sun and orbits its star every 4 days. It has about the mass of Jupiter. The Solar system has four terrestrial planets: Mercury, Venus, Earth and Mars. Mercury is the smallest and closest planet to the sun in the Solar System.Its orbit around the Sun takes 87.97 Earth days, the shortest of all the planets in the Solar System. However, in the case of the hot Jupiter, the innermost planet was Jupiter (rather than Mercury) sized, and its chaotic evolution was terminated when it was tidally captured by its star. In astrology, as discussed above Mercury influences the 12 houses in our horoscope in different ways. Importance of Mercury in Astrology. It is named after the Greek god Hermes (Ερμής), translated into Latin Mercurius Mercury, god of commerce, messenger of the gods, mediator between gods and mortals. This sanguine property is very productive of growth as plants grow very quickly under such conditions. In essence, a hot Jupiter is a planet that has a mass and radius of the order of that of our own Jupiter, but orbits the host star at distance that is less (often much less) than the Earth-Sun distance. Hot Jupiter (also called roaster, pegasid or Pegasi planet) is a class of extrasolar planets whose mass is close to or exceeds that of Jupiter (1.9 × 10 kg), but unlike in our own solar system, where Jupiter orbits at 5 AU, the planets referred to as Hot Jupiters orbit within approximately 0.05 AU of their parent stars. Earth is in the habitable zone, where water can … These effects directly affect lives. A hot Jupiter could be the end state of a secularly chaotic planetary system reminiscent of the solar system. Observations of hot Jupiter “mini-eclipses” have yielded hundreds of discoveries. Image right: This image shows the differences (not to scale) between the inner regions of our Solar system, and a simulated planetary system containing a "hot Jupiter". Planets like these are referred to as "Hot Jupiters.” Mercury is unlike planet Earth and Venus whose environment is permanent, Mercury's atmosphere constantly changes. 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