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Neptune is the solar system's farthest planet from the sun, located an average of 2.79 billion miles away. The circumference of its orbit is 17.56 billion miles, more than 30 times the orbit circumference of Earth. Its v... More »

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Neptune is the eighth planet from the sun and appears bright blue in color. It was discovered by German astronomer Johann Galle in 1846 and is named after the Roman god of the sea, Neptune. It is a sister planet to Uranu... More »

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Pluto is a dwarf planet in the area of the Kuiper belt, which is an area with many dwarf planets, according to the National Aeronautics and Space Administration (NASA). The dwarf planet is after Neptune in the planetary ... More »

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Neptune is the eighth planet from the sun, and it's about 2.8 billion miles away from the sun. This distance is roughly 30 times further away from the sun than Earth is, making Neptune a cold and dark planet. More »

www.reference.com Science Astronomy Planets

One year on Neptune is equal to around 165 Earth years or 60,190 Earth days, which is the amount of time it takes the planet to complete its orbit around the sun. Days on Neptune last about 16 hours, which is 8 hours les... More »

www.reference.com Science Astronomy Planets

Neptune is the coldest planet in the Solar System, maintaining a fairly consistent average of -200 degrees Celsius. Towards the planet's equator, temperatures can get as cold as -218 degrees Celsius, while temperature at... More »

www.reference.com Science Astronomy Planets

Neptune, the eighth planet from the sun, cannot support life according to NASA. Being so far from the sun makes Neptune a very cold planet, with temperatures reaching as low as -361. More »

www.reference.com Science Astronomy Planets