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Neptune is the eighth and farthest known planet from the Sun. It is the fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17 times the mass of Earth. Compared to its fellow ice giant Uranus, Neptune is slightly more massive, but denser and smaller.
The Great Dark Spot (also known as GDS-89, for Great Dark Spot, 1989) was one of a series of dark spots on Neptune similar in appearance to Jupiter 's Great Red Spot. In 1989, GDS-89 was the first Great Dark Spot on Neptune to be observed by NASA 's Voyager 2 space probe. Like Jupiter's spot, the Great Dark Spots are anticyclonic storms.
Urbain Le Verrier. Urbain Jean Joseph Le Verrier (French: [yʁbɛ̃ ʒɑ̃ ʒozɛf lə vɛʁje]; 11 March 1811 – 23 September 1877) was a French astronomer and mathematician who specialized in celestial mechanics and is best known for predicting the existence and position of Neptune using only mathematics. The calculations were made to ...
Neptune has long been known to have white clouds circling it, but images of the furthest planet in the solar system have shown this changing over time - the most recent image, taken by the Hubble ...
Cathy Cook, Albuquerque Journal, N.M. October 9, 2024 at 8:59 PM. Oct. 9—With elk bugling and dark, clear skies above, Valles Caldera is a beautiful place for stargazing. Most days the ...
Visalia, California, commonly known in the 1850s as Four Creeks, [1] is the oldest continuously inhabited inland European settlement between Stockton and Los Angeles. [2] The city played an important role in the American colonization of the San Joaquin Valley as the county seat of Old Tulare County, an expansive region comprising most if not all of modern-day Fresno, Kings, and Kern counties.
Position of Neptune (marked with a cross) on the date of its discovery, the September 23rd, 1846. Le Verrier was unaware that his public confirmation of Adams' private computations had set in motion a British search for the purported planet. On 31 August, Le Verrier presented a third memoir, now giving the mass and orbit of the new body.
The rings of Neptune are made of extremely dark material, likely organic compounds processed by radiation, similar to those found in the rings of Uranus. [5] The proportion of dust in the rings (between 20% and 70%) is high, [5] while their optical depth is low to moderate, at less than 0.1. [6] Uniquely, the Adams ring includes five distinct ...