Solar system all moons

How many moons are there in our Solar System?

There are currently 181 known moons in our solar system orbiting the various planets and dwarf planets. Of the 13 planets and dwarf planets, there are four which don't have any moons. These are the planets Mercury and Venus, and the dwarf planets Ceres and Makemake.

Do all planets have moons?

Of the terrestrial (rocky) planets of the inner solar system, neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons. In the outer solar system, the gas giants Jupiter and Saturn and the ice giants Uranus and Neptune have dozens of moons.

Which planet has the most moons in the Solar System?

Here is the list of the known planetary moons in the solar system. Planets Mercury and Venus have no moons. Other planets in the solar system have one or more moons orbiting them. As of June 2023, with 146 confirmed moons, Saturn is the planet that has the most moons in Solar System. Moons come in many shapes, sizes, and types.

How many moons orbit planets?

The International Astronomical Union lists 146 moons orbiting planets in our solar system — this number does not include the moons awaiting oficial recognition and naming, the eight moons of the dwarf planets, nor the tiny satellites that orbit some asteroids and other celestial objects.

How many moons does Uranus have?

Uranus has 28 known moons that we know of. Some of them are half made of ice. Lastly, Neptune has 16 known moons. One of Neptune's moons, Triton, is as big as dwarf planet Pluto. To learn more about the moons in our solar system, visit the NASA Solar System Exploration moons page.

Do planetary moons have atmospheres?

They are generally solid bodies, and few have atmospheres. Most planetary moons probably formed out the discs of gas and dust circulating around planets in the early solar system. There are hundreds of moons in our solar system – even asteroids have been found to have small companion moons.