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How a planet forms

From EverybodyWiki Bios & Wiki

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this is not an essay!

contains more than just how a system forms.

Note! This was made by the smartest 4th grader in Ada schools... but i am also the shortest... help by making corrections... please...

1a.After the star forms[edit]

This is where it all starts. Once the star forms, every dust, rock, and gas particles get blown away, but do not get ejected. it will only get fully ejected if the star is an O-type or higher mass.

H-R Diagram

types of stars:








8.Wolf-rayet (not in diagram)

9.Quasi star (not in diagram)

dead stars are:

1.D: remnants from M,K,G,F,A,and B-type stars.

2.Q: remnants from O-type stars.

3.X: remnants from Wolf-rayet and quasi stars.


during this time when the dust settles, accretion will begin. for more on accretion, go to nebular hypothesis


  • At this point the planets start to form, but they can also be called planetisimals.
  • they may form a planet in the habitable zone and make a habitable planet.
  • the amount of mass varies, as it may be in a disk of high mass, or a disk with low mass.
  • there may be a proto-moon orbiting.
  • if it hits less than 100 gas particles, then it is a superdense rocky planet.
  • if it hits in between 100 and 500 gas particles, then it is a regular terrestrial/rocky planets.
  • if it hits in between 500 and 999 gas particles it would be a sub-neptune.
  • if it hits at least 1,000 gas particles, it may be a gas giant.

3.The rocky planets[edit]

  • there is a 50/50 chance they will get a moon.

4.The gas giants[edit]

a forming gas giant
  • These might be the biggest planets in a system, but if they are smaller then earth, then they are gas dwarfs, if they were 13 jupiter masses, then they would be brown dwarfs... so i will call 12 jupiter masses the browned limit! the browned limit... i will tell you about my idea soon...
  • they have an 80/20 chance of having more than 60 moons
random planet in circumstellar disk


  • Moons can either be formed during a planet's formation, from a ring, or from debris from a collision between two planets. moons that are massive enough to have a magnetic field will be major satellites.
  • a moon that does not have a spherical shape is a minor moon, most common around dwarf planets

6.Dwarf planets[edit]

  • Dwarf planets can form when a protoplanet does not get enough mass to clear it's own orbit, and may get minor moons that might be asteroids.

7.system types[edit]

system types include:

1.dwarf: has a red/red-orange dwarf and 1-2 planets.

2.supergiant: the biggest of system types with 8 or more planets.

3.asteroid belt: no matter the star, or planets, it has an asteroid belt.

4.nebula: a basic system nebula that is still forming.

5.neutron star: they have a neutron star in the center. there is one known to exist hole: they have a black hole in the center... none discovered.. but i think one exists. any astronomers should snatch their telescopes.For now, you can make one on universe sandbox

7.binary: there are 2 stars, and maybe binary planets.

8.circumstellar disk: it has a circumstellar disk, easy.

link to gravity simulator[edit]


if this gets declined again i will abandon it.

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