A crater.
A round pit in the moon's surface is called a crater.
Round depressions on the Moon are primarily impact craters, formed when meteoroids, asteroids, or comets collide with the lunar surface at high speeds. These impacts create circular pits, varying in size, with raised rims and sometimes central peaks. Over billions of years, the Moon's surface has accumulated numerous craters due to the lack of atmosphere and geological activity that would otherwise erode them. Some depressions may also be volcanic in origin, known as lava pits or calderas.
highlands
Both Earth and Mars have moons that are believed to have been formed through the process of accretion around their respective planets. Both Earth's Moon and Mars' moons (Phobos and Deimos) are irregularly shaped and have similar surface compositions, predominantly made up of rock and dust. Additionally, all three moons have surface features like craters and some evidence of past volcanic activity.
If my math is correct it is 77.77% which round to 78% of the planets have moons. If you count Pluto still as a planet.
A crater.
A round pit in the moon's surface is called a crater.
Muffin Pan
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Muffin Pan
Round depressions on the Moon are primarily impact craters, formed when meteoroids, asteroids, or comets collide with the lunar surface at high speeds. These impacts create circular pits, varying in size, with raised rims and sometimes central peaks. Over billions of years, the Moon's surface has accumulated numerous craters due to the lack of atmosphere and geological activity that would otherwise erode them. Some depressions may also be volcanic in origin, known as lava pits or calderas.
highlands
mercator
Its called a projection map
All the moons look round but some are oval.
mercator
mercator