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The thing they have in common is the "hydrostatic equilibrium". What this means is that the planet or dwarf planet is large enough, and massive enough, to have a round shape due to its own gravity - a sphere, or in the case of a rapidly spinning object, an ellipsoid.

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How are inner planets similar to dwarf planets?

The other planets are not similar to dwarf planets.


How are the inner planets similar to dwarf planets?

Inner planets and dwarf planets are similar in that they both orbit around the sun, have a solid surface, and are relatively small compared to gas giants like Jupiter and Saturn. However, inner planets typically have a more defined orbit and are part of the traditional eight planets in our solar system, while dwarf planets are smaller bodies that have not cleared their orbits of other debris and therefore have a different classification.


What is aranus?

aranus is one of the eight dwarf planets


When does Pluto cross?

None of the eight planets has an orbit that crossesanother. Dwarf planets (which include Pluto) and Dwarf Planet candidates do cross orbits of planets and each


How many planets is in earth's star system?

There are eight planets and five dwarf planets in our solar system.Planets:MercuryVenusEarthMarsJupiterSaturnUranusNeptuneDwarf Planets:CeresPlutoHaumeaMakemakeEris


Are dwarf planets satillites?

They are satellites of our sun, as with the eight major planets. They orbit the sun directly.


Which is the smallest planet is it Pluto?

Mercury is the smallest of the eight official planets, then there are dwarf planets that are smaller.


How many planets we have?

As of August 24th, 2006 when the International Astronomical Union (IAU) defined what it means to be a "planet" within our Solar System, we officially stand with eight planets. Within our system we have eight planets (major). As of December 2011 there are 310376 numbered minor planets with an estimated similar count which have not been numbered. Five minor planets have been officially classified as "dwarf planets", of the minor planets, another 390 are being considered for designation as a dwarf planet.


How money planets are there in your solar system?

There are eight planets and five dwarf planets in our solar system.


What are the other dwarf planets called?

Other dwarf planets in our solar system include Eris, Haumea, and Makemake. These dwarf planets are similar to Pluto in that they are smaller than traditional planets and do not meet all criteria to be considered full-fledged planets.


Are there over 100 planets in our solar system?

No. There are eight planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune) five dwarf planets and a few more dwarf planet candidates. There are other objects in orbit around our sun, but these are too small to be classed as planets.


Whether there are eight planets or eleven planets?

There are only 8 planets because Pluto Becanme a Dwarf planet and is no longer counted as one