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  2. Neptune - Wikipedia

    en.wikipedia.org/wiki/Neptune

    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.

  3. Outline of Neptune - Wikipedia

    en.wikipedia.org/wiki/Outline_of_Neptune

    In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth and slightly larger than Neptune. [a] Neptune orbits the Sun once every 164.8 years at an ...

  4. List of Solar System objects by size - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System...

    This list contains a selection of objects 50 and 99 km in radius (100 km to 199 km in average diameter). The listed objects currently include most objects in the asteroid belt and moons of the giant planets in this size range, but many newly discovered objects in the outer Solar System are missing, such as those included in the following ...

  5. 2001 KY76 - Wikipedia

    en.wikipedia.org/wiki/2001_KY76

    It is classified as a plutino, a minor planet locked in a 2:3 mean-motion orbital resonance with the planet Neptune. [1] [3] It was discovered on May 23, 2001, by Marc W. Buie in the Cerro Tololo Observatory. The dwarf planet candidate measures approximately 285 km in diameter. [2] [4]

  6. Laomedeia - Wikipedia

    en.wikipedia.org/wiki/Laomedeia

    Laomedeia / ˌ l eɪ ə m ə ˈ d iː ə /, also known as Neptune XII, is a prograde irregular satellite of Neptune. It was discovered by Matthew J. Holman , et al. on August 13, 2002. [ 6 ] Before the announcement of its name on February 3, 2007 (IAUC 8802), it was known as S/2002 N 3 .

  7. 30 Intriguing Posts From This Page Dedicated To Ancient History

    www.aol.com/mysteries-marvels-past-70-posts...

    This immense crater spans an impressive 3.44 kilometers (2.14 miles) in diameter and cradles the stunning Lake Pingualuk, which plunges to depths of 267 meters (876 feet).

  8. Angular diameter - Wikipedia

    en.wikipedia.org/wiki/Angular_diameter

    an object of diameter 45 866 916 km at 1 light-year; an object of diameter 1 AU (149 597 871 km) at a distance of 1 parsec (pc) Thus, the angular diameter of Earth's orbit around the Sun as viewed from a distance of 1 pc is 2″, as 1 AU is the mean radius of Earth's orbit. The angular diameter of the Sun, from a distance of one light-year, is ...

  9. An asteroid has a 2% chance of hitting Earth in 2032. Here’s ...

    www.aol.com/news/asteroid-2-chance-hitting-earth...

    Asteroid 2024 YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.