The mean temperature of Neptune is -353 degrees Fahrenheit, which drops to -346 degrees F at the planet's cloud tops. Along with Uranus, Neptune is categorized as an ice giant, primarily due to its icy composition.
The atmosphere of Neptune mainly consists of helium and hydrogen, with small amounts of methane. Pressures and temperatures vary at different elevations. The warmest areas on the planet are located on its southern polar region, according to astronomical observations taken by scientists in 2007. The temperature in the upper cloud stratum was found to be around 50 degrees F hotter than the rest of Neptune. The bluish color of the planet is attributed to leaked methane, which is the result of this occurrence.Learn More
The name for the planet Venus comes from the name of the ancient Roman goddess of beauty, fertility and love, which was also Venus. Every planet in the solar system except Earth is named after a Roman deity, but Venus is the only one to be named after a goddess instead of a god.Full Answer >
Mars is approximately 141.6 million miles from the Sun. In comparison, the Earth is approximately 92.9 million miles from the Sun. These measurements are averages, because the distances vary due to the elliptical shapes of the planets' orbits.Full Answer >
Venus is just slightly smaller than the Earth, with a radius of about 3,760 miles and a circumference a little over 23,627 miles. These measurements make Venus about 94 percent of the size of the Earth, although it is only about 82 percent as voluminous.Full Answer >
The hottest temperature on Saturn is estimated to be 11,700 degrees Celsius at its core. Saturn's core is composed of liquid metallic hydrogen that is formed by the compression forces surrounding the core. The energy that radiates from the planet is twice what it receives from the Sun.Full Answer >