• Thumbnail for Planetary-mass moon
    planetary-mass moon is a planetary-mass object that is also a natural satellite. They are large and ellipsoidal (sometimes spherical) in shape. Moons...
    29 KB (2,200 words) - 16:39, 2 April 2024
  • Thumbnail for Moon
    of Earth's tides. In geophysical terms the Moon is a planetary-mass object or satellite planet. Its mass is 1.2% that of the Earth, and its diameter...
    255 KB (24,692 words) - 00:38, 28 April 2024
  • In astronomy, planetary mass is a measure of the mass of a planet-like astronomical object. Within the Solar System, planets are usually measured in the...
    27 KB (2,543 words) - 20:56, 21 December 2023
  • Thumbnail for Planetary-mass object
    A planetary-mass object (PMO), planemo, or planetary body is, by geophysical definition of celestial objects, any celestial object massive enough to achieve...
    18 KB (1,923 words) - 02:20, 9 April 2024
  • Thumbnail for Natural satellite
    are colloquially referred to as moons, a derivation from the Moon of Earth. In the Solar System, there are six planetary satellite systems containing 284...
    43 KB (3,565 words) - 13:50, 26 March 2024
  • Thumbnail for Dwarf planet
    Dwarf planet (redirect from Planetary dwarf)
    likeliest dwarf planets and dates of discovery A dwarf planet is a small planetary-mass object that is in direct orbit around the Sun, massive enough to be...
    96 KB (8,944 words) - 14:11, 27 April 2024
  • Thumbnail for Planetary core
    Earth, and exoplanet HD149026 b may have a core 100 times the mass of the Earth. Planetary cores are challenging to study because they are impossible to...
    36 KB (4,408 words) - 15:56, 9 March 2024
  • Thumbnail for Planet
    Planet (redirect from Planetary bodies)
    the naming of Miranda). Neptune's planetary-mass moon Triton is named after the god's son; Pluto's planetary-mass moon Charon is named after the ferryman...
    195 KB (20,575 words) - 05:22, 26 April 2024
  • Thumbnail for Jupiter Icy Moons Explorer
    three icy moons of Jupiter: Ganymede, Callisto, and Europa. These planetary-mass moons are planned to be studied because they are thought to have beneath...
    36 KB (3,139 words) - 02:44, 15 April 2024
  • Thumbnail for Planetary science
    Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets)...
    26 KB (3,146 words) - 20:57, 7 November 2023