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Neptune is the eighth and farthest planet from the Sun in the Solar System. It is an ice giant. It is the fourth-largest planet in the system. Neptune's mass is 17 times Earth 's mass and a little bit more than Uranus ' mass. Neptune is denser and smaller than Uranus. Because of its greater mass, Neptune's gravity makes its atmosphere smaller ...
Mar 28, 2019 · Neptune 101 Neptune is the most distant of the solar system's eight planets. Find out about the blue world's orbit, which of Neptune's moons is the largest, and how the planet is home to the most ...
Neptune (Latin: Neptūnus [nɛpˈtuːnʊs]) is the Roman god of freshwater and the sea in Roman religion. He is the counterpart of the Greek god Poseidon . [3] In the Greek-inspired tradition , he is a brother of Jupiter and Pluto ; the brothers preside over the realms of heaven , the earthly world (including the underworld ), and the seas. [4]
Sep 25, 2019 · January 4, 2021. Neptune is the fourth largest and the farthest planet of the Solar System with the most powerful wind speeds out of all the planets. It is the smallest of the gas giants and is the first planet to be discovered by mathematical predictions in 1846. Key Facts & Summary. It is the only planet that is invisible to the unaided eye ...
In Depth. Dark, cold, and whipped by supersonic winds, ice giant Neptune is the eighth and most distant planet in our solar system. More than 30 times as far from the Sun as Earth, Neptune is the only planet in our solar system not visible to the naked eye. In 2011 Neptune completed its first 165-year orbit since its discovery in 1846.
Voyager 2 passed Neptune in August 1989. Its instruments measured an atmospheric temperature of -220 degrees Celsius (-360 degrees Fahrenheit), with wind speeds as high as 2,100 kilometers per hour, possibly driven from heat radiating deep within the planet. Voyager 2 also made the definitive observations of the planet’s rings and saw storms ...
Mar 11, 2024 · Neptune Observational Parameters Discoverer: Johann Gottfried Galle (based on predictions by John Couch Adams and Urbain Leverrier) Discovery Date: 23 September 1846 Distance from Earth Minimum (10 6 km) 4319.0 Maximum (10 6 km) 4711.0 Apparent diameter from Earth Maximum (seconds of arc) 2.4 Minimum (seconds of arc) 2.2 Mean values at opposition from Earth Distance from Earth (10 6 km) 4348. ...
