Planets, by definition are all approximately spherical in shape, though their axial rotation often means that they are oblate spheroids (look like `squashed spheres`, longer across the equator than from pole to pole).
The size of the planets varies;
Mercury's diameter (at the equator) = 4880km or 0.3825 x Earths diameter
Venus' diameter = 12104km or 0.9488 x Earths
Earth's diameter = 12756km
Mars' diameter = 6794km or 0.5323 x Earths
Jupiter's diameter = 142,984km or 11.21 x Earths
Saturn's diameter = 120,534km or 9.45 x Earths
Uranus' diameter = 51,114km or 4.01 x Earths
Neptune's diameter = 49,532km or 3.88 x Earths
The size of the planet along with the gravitational force within the planet.
Dense bodies the size of planets or larger typically have a roughly spherical shape due to the force of their own gravity pulling inward equally from all directions, resulting in a balanced and compact shape. This phenomenon is known as hydrostatic equilibrium.
No, comets are generally much smaller than planets. Comets are composed of ice, dust, and rocky materials and can range in size from a few hundred meters to tens of kilometers in diameter. In comparison, planets are much larger celestial bodies that orbit stars and have a defined spherical shape.
Gravity, together with the planet's total kinetic and potential energy, completely determines the size and shape of the orbit.
ellipitcal
Approximately "spherical".
Gases and rocks that form together to form a bigger shape or size
The size of the planet along with the gravitational force within the planet.
Dense bodies the size of planets or larger typically have a roughly spherical shape due to the force of their own gravity pulling inward equally from all directions, resulting in a balanced and compact shape. This phenomenon is known as hydrostatic equilibrium.
They don't because their different in size, shape, and color
Because of their larger gravity, AND their larger size. Larger gravity will allow smaller hills or other irregularities; larger size means that an irregularity of a certain size will smaller, compared to the size of the planet.
all planets have a circular shape
Planets are all spherical.
Mainly size, density, distance from other planets, distance from the nearest star, existence of satellites, age, shape, (The Earth is flattened on its poles.) and many other features.
Yes, tiny planets are still called planets as long as they meet the criteria of orbiting a star, being spherical in shape, and clearing their orbit of other debris. Size does not define whether an object is considered a planet.
There are two planets with an almost perfectly spherical shape. They are Mercury and Venus.
Yes, dwarf planets can have a variety of shapes besides being round. Factors like their size, composition, and unique geological history can influence their shape. Some dwarf planets may have irregular shapes due to impacts or gravitational interactions with other celestial bodies.