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Neptune brightened about 10% between 1980 and 2000 mostly due to the changing of the seasons. [177] Neptune may continue to brighten as it approaches perihelion in 2042. The apparent magnitude currently ranges from 7.67 to 7.89 with a mean of 7.78 and a standard deviation of 0.06. [18] Prior to 1980, the planet was as faint as magnitude 8.0. [18]
NASA's Neptune fact sheet; Neptune from Bill Arnett's nineplanets.org; Neptune Astronomy Cast episode No. 63, includes full transcript. Neptune Profile at NASA's Solar System Exploration site; Planets – Neptune A children's guide to Neptune. Merrifield, Michael; Bauer, Amanda (2010). "Neptune". Sixty Symbols. Brady Haran for the University of ...
A cancelled mission concept for a flyby mission to the Neptune system and Kuiper belt based on the New Horizons space probe. cancelled Nautilus: NASA: orbiter A Triton-focused Neptune orbiter baselined for the New Frontiers program, with launch in August 2042 and orbital insertion slated for April 2057. proposed [24] [25] Tianwen-5: CNSA: orbiter
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.
An annotated picture of some of Neptune's many moons as captured by the James Webb Space Telescope. The bright blue diffraction star is Triton, Neptune's largest moon; while Hippocamp, its smallest regular moon, is too small to be seen. The planet Neptune has 16 known moons, which are named for minor water deities and a water creature in Greek ...
Generally, Neptune is depicted as a rich, deep blue. Uranus is usually seen as a pale green or cyan. In fact, however, they are much more similar than we thought. Both planets are a particular ...
Nickelodeon Launch Box is an educational television series that was produced jointly by Nickelodeon, NASA and the Astronauts Memorial Foundation. It was meant to teach kids about space travel technology. As part of the Cable in the Classroom service, the show was intended to be taped by teachers and shown in the classroom. Each episode also ...
The ice giants Uranus and Neptune live up to their name. Although humans have only ever sent one spacecraft (Voyager 2) toward these far-flung worlds, scientists have a pretty good idea that these ...