The solar nebula theory explains what characteristics are found in our solar system.

What characteristics of the solar system can be explained by the solar-nebula theory

The solar nebula hypothesis suggests that outer planets could collect hydrogen within their gravity. However, closer to the sun most of the hydrogen was blown away in solar winds. This left less hydrogen and exposed the rocky core.

What are the main features of the solar system?

Our solar system is composed of the Sun, our star, and all that is bound to it by gravity. These include the planets Mercury and Venus, Earth, Mars and Saturn, as well as Neptune and Neptune. There are also dozens of other moons, asteroids, comets, and meteoroids.

What are the four theories of the solar system?

The origin of the Solar System

  • The origin of the Solar System. How did the Solar System’s Sun, Moons, and Planets form?
  • What theories are there about the origin of our Solar System?
  • The Accretion theory.
  • The Protoplanet theory.
  • The Capture theory.
  • The Modern Laplacian theory.
  • The Modern Nebular theory.
  • Conclusion.

What nebula can we see?

Most nebulae, which are interstellar dust and gas clouds, are hard to see without binoculars or an aided eye. The Orion Nebula, however, is a class by itself. On a dark night, it is visible even to the naked eye.

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What starts a nebula contract?

As the nebula contracts it spins faster, and then flattens into an disk. According to the nebular theory, particles in the flattened disk collide with each other and form asteroid-sized objects known as planetesimals. The star is formed by the majority of the material in a nebula.

What is the accretion process?

In planetary science, accretion refers to the process by which solids agglomerate into larger and more complex objects. Eventually, planets will be formed. Initial conditions include a disc of gas with microscopic solid particles and a total mass of approximately 1%. The process of accretion must be efficient and rapid.

What are the similarities and differences of Earth Venus Mars?

Mars is much smaller, with a diameter of only 6,792 km. Venus is Earth’s closest twin in terms of mass. It has 81% the mass of Earth, while Mars only has 10% the mass of Earth. The climates on Mars and Venus are quite different and also very different from Earth.

What size is Earth in the solar system?

Larger than 400 km

Body Radius Mass
(km) (M)
Earth 6371.0084+-0. 0001 1
Venus 6052+-1 0. 815
Mars 3389.5+-0.2 0. 107

What is the size of our solar system in miles?

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Well, it depends a bit on how you define the “end.” If you choose Pluto, the outermost planet, as the end, then the diameter of the solar system is 80 A.U. A.U. A.U. stands for “astronomical unit”. The distance between Earth’s surface and the sun is equal to miles. That would equal 7, (over seven billion) miles.

How big is the solar system in light years?

Credit: NASA In the furthest reaches of the Solar System is the Oort Cloud; a theorized cloud of icy objects that could orbit the Sun to a distance of 100,000 astronomical units, or 1. 87 light-years away.