Of the Solar System's eight planets and its nine most likely dwarf planets, six planets and seven dwarf planets are known to be orbited by at least 300 natural satellites, or moons. At least 19 of them are large enough to be gravitationally rounded; of these, all are covered by a crust of ice except for Earth's Moon and Jupiter's Io . [ 1 ]

6 天之前 · Naturally-formed bodies that orbit planets are called moons, or planetary satellites. The best-known planetary satellite is, of course, Earth’s Moon. Since it was named before we learned about other planetary satellites, it is called simply “Moon.” A plane is seen flying in front of the Moon on July 31, 2015, in Arlington, Virginia.

Do you know all 294 moons of the planets (and dwarf planets) in our solar system? Well here they are! Every so often new moons are discovered for Jupiter and Saturn. Moons are listed by size from largest to smallest for a given planet. Planet Mercury is too close to …

2025年1月22日 · In the outer solar system, the gas giants Jupiter and Saturn and the ice giants Uranus and Neptune have dozens of moons. As these planets grew in the early solar system, they were able to capture smaller objects with their large gravitational fields.

A complete list of the 181 moons that are orbiting planets and dwarf planets in our solar system, with facts and information about each moon.

2025年1月14日 · We on Earth have just one moon, but some planets have dozens of them. Others don’t have any. Which planets have moons, and which don’t? Let’s go in order from the Sun. Up first are Mercury and Venus. Neither of them has a moon. Because Mercury is so close to the Sun and its gravity, it wouldn’t be able to hold on to its own moon.

2024年9月17日 · As of June 2023, there are 290 confirmed moons in our solar system. A moon, also known as a natural satellite, is a celestial body that orbits planets, and asteroids. This number includes only the planetary moons (moons orbiting a planet) plus Pluto’s moons. Here is the list of the known planetary moons in the solar system.

2024年6月29日 · The International Astronomical Union (IAU) officially recognizes 288 planetary moons orbiting the solar system 's eight worlds, according to NASA. But there are also a further 473 "small-body...

2023年1月19日 · The following tables contain all the known moons of the solar system, including the dozens of moons circling Jupiter, Saturn, Uranus, and Neptune. As of February 2024, the count stood at 298, distributed as follows: Earth 1, Mars 2, Jupiter 95, Saturn 146, Uranus 28, Neptune 16 — and among the IAU-approved dwarf planets: Pluto 5, Haumea 2 ...

Moons — also called satellites — come in many shapes, sizes, and types. They are generally solid bodies, and few have atmo-spheres. Most of the planetary moons probably formed from the discs of gas and dust circulating around planets in the early solar system.