The four outer planets, or giant planets ( sometimes called Jovian planets ), collectively make up 99 % of the mass known to orbit the Sun.
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And then we talk about the asteroid belt, and then the Jovian planets and then the Kuiper Belt of comets, including Pluto that's orbiting out there.
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"' HD 118203 b "'is a jovian planet that takes only 6.13 days or 147 hours to orbit the parent star at a distance of 0.07 astronomical units.
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As determined by doppler spectroscopy, the jovian planet has an elongated orbit about 0.5 AU from its host star and a minimum mass 3.37 times that of Jupiter.
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The above considerations though do explain why the Moon, Mercury, and Mars have virtually no atmospheres, while the Earth, Venus, and the jovian planets all have varying amounts of an atmosphere.
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"' HD 175541 b "'is a jovian planet located approximately 410 light-years away in the constellation of eccentric orbit, because the parent star is 65 % more massive than our Sun.
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The planet was found orbiting the star 14 Herculis, with a mass that would likely make the planet a Jovian planet roughly the same size as Jupiter but much more massive.
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The " Voyager 2 " spacecraft, launched in 1977 to study the four Jovian planets in the Solar System, is expected to pass within of Sirius in approximately 296, 000 years.
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The Blue Moon orbits a Water Cloud Jovian planet ( a Jupiter-like planet that is cool enough to have visible rain clouds in its atmosphere ) orbiting a close binary star system.
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The planet was confirmed in 2006 to be orbiting the orange dwarf star HD 99109 . The planet is about one half the mass of Jupiter, classifying the planet as a Jovian planet.
