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They're too small for their gravitation to round them up.
Comet
Uranus has five moons-Miranda,Ariel,Umbriel, Titania,and Oberon.There 13 irregularly shaped outer moons and 9 small moons within its rings.
Its the suns surface
Asteroids
They're too small for their gravitation to round them up.
Planetesimal: a small, irregularly shaped body formed irregular by colliding matter
Comet
Any of numerous small, often irregularly shaped rocky bodies that orbit the sun primarily in the asteroid belt
Because they are just small to medium size rocks. They are not large enough for gravity to shape them into spheres, like the Moon etc
They're small, odd shaped, irregularly cut pieces of pasteboard or wood or the like that usually have a small part of a picture on them, that when fitted together form a design or picture.
If the object in question is water proof, and small enough. You can measure the amount of displaced water when it is placed in a tank full of water, this may not work for a lot of things but it can help when attempting to measure some objects.
Depending on the size of the rock - if it is small enough it can be measured in a container with water the size can be judged by seeing how much water it displaces
Uranus has five moons-Miranda,Ariel,Umbriel, Titania,and Oberon.There 13 irregularly shaped outer moons and 9 small moons within its rings.
Phobos and Deimos are the two moons of Mars. They are small and shaped irregularly. The surfaces are scarred by many large impact craters. This is why the moons are extremely old.
Mars has two moons, Phobos and Deimos.Both are thought to be captured asteroids due to their size and irregular shape.Mars has 2 moons, Phobos & Deimos, which are small and irregularly shaped.
Mercury, is the smallest planet that orbits the sun.