Neptune - NASA Science
Dark, cold and whipped by supersonic winds, giant Neptune is the eighth and most distant major planet orbiting our Sun. More than 30 times as far from the Sun as is Earth, Neptune is not visible to the naked eye.
Neptune Facts - Science@NASA
Neptune is the eighth and most distant planet in our solar system. It was discovered in 1846. Neptune has 16 known moons.
New Webb Image Captures Clearest View of Neptune’s Rings in Decades - NASA
2022年9月21日 · NASA’s James Webb Space Telescope shows off its capabilities closer to home with its first image of Neptune. Not only has Webb captured the clearest view of this distant planet’s rings in more than 30 years, but its cameras reveal the ice giant in a whole new light.
In Depth | Neptune – NASA Solar System Exploration
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.
175 Years Ago: Astronomers Discover Neptune, the Eighth Planet - NASA
2021年9月22日 · The discovery was made using a telescope since Neptune is too faint to be visible to the naked eye, owing to its great distance from the Sun. Astronomers soon discovered a moon orbiting Neptune, but it took more than a century to discover a second one.
All About Neptune | NASA Space Place – NASA Science for Kids
2025年1月14日 · Neptune is the eighth and most distant planet from the Sun. That means Uranus is Neptune’s only neighboring planet. Quick History. Neptune was discovered in 1846 by Urbain Le Verrier, John Couch Adams, and Johann Galle. Only Voyager 2 has visited Neptune. What does Neptune look like? Voyager 2 took this picture of Neptune in 1989.
10 Need-to-Know Things About Neptune - NASA Solar System Exploration
Neptune orbits our Sun, a star, and is the eighth planet from the Sun at a distance of about 2.8 billion miles (4.5 billion kilometers).
Neptune: Exploration - NASA Science
2016: Scientists using the Hubble Space Telescope discover a new dark spot on Neptune, the first new atmospheric vortex seen in the 21st century. 2022: NASA’s James Webb Space Telescope took its first image of Neptune, and captured the clearest view of the planet’s rings in more than 30 years.
Neptune Shows Off Its Rings in Near-Infrared Light - NASA
2023年9月15日 · On Sept. 21, 2022, the James Webb Space Telescope delivered the clearest view of Neptune’s rings in more than 30 years. Webb’s Near-Infrared Camera (NIRCam) captured several bright, narrow rings as well as the planet’s fainter dust bands.
Neptune Fact Sheet - NSSDCA
2024年10月3日 · Neptune Mean Orbital Elements (J2000) Semimajor axis (AU) 30.06896348 Orbital eccentricity 0.00858587 Orbital inclination (deg) 1.76917 Longitude of ascending node (deg) 131.72169 Longitude of perihelion (deg) 44.97135 Mean Longitude (deg) 304.88003 ... NASA Official: Dave Williams, [email protected]