<p>What do you mean exactly?</p>
<p>Motions are governed by the Law of Universal Attraction (or Gravitation), which states that the force between two objects is proportional to their mass and inversely proportional to the square of their distance. In other words, “heavier” objects will attract more, but distant objects will attract less.</p>
<p>This in turns gives rise to the three laws of planetary movement of Johannes Kepler (which he formulated between 1609 and 1619):</p>
<p>• All orbits are ellipses, with the “parent” body (the Sun for planets; planets for satellites) being in one of the foci of the ellipse;</p>
<p>• The time it takes a body to circle its parent body is inversely proportional to the distance from which it is from the parent body;</p>
<p>• The imaginary line between the parent body and the “child” body covers equal areas in equal times.</p>
<p>So, to sum everything up: Planets revolve around the Sun in ellipses (“stretched circles”); the closer they are, the faster they move. Satellites revolve around planets in the same way.</p>
<p>Hope it clears things up a little.</p>
<p>Next time, please try to be more precise in your questions. I answered it this time because I believe everyone has a right to know and there are no dumb questions, but your question was very vague…</p>

CC BY-SA 4.0
2021-12-21T06:06:49.147Z
2021-12-21T06:06:49.147Z
Pierre Paquette
<p>like so i don't get it it does not make sense I'm confused</p>

<observational-astronomy><the-sun><galaxy><solar-system><milky-way>
how would you explain the motions in the solar system?
your done
# how would you explain the motions in the solar system?

(Asked by: username_0 on 2021-12-21)

like so i don't get it it does not make sense I'm confused

**Tags:** observational-astronomy, the-sun, galaxy, solar-system, milky-way


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## 1 answers

### Answer by username_1 on 2021-12-21. Score: 1

What do you mean exactly?

Motions are governed by the Law of Universal Attraction (or Gravitation), which states that the force between two objects is proportional to their mass and inversely proportional to the square of their distance. In other words, “heavier” objects will attract more, but distant objects will attract less.

This in turns gives rise to the three laws of planetary movement of Johannes Kepler (which he formulated between 1609 and 1619):

• All orbits are ellipses, with the “parent” body (the Sun for planets; planets for satellites) being in one of the foci of the ellipse;

• The time it takes a body to circle its parent body is inversely proportional to the distance from which it is from the parent body;

• The imaginary line between the parent body and the “child” body covers equal areas in equal times.

So, to sum everything up: Planets revolve around the Sun in ellipses (“stretched circles”); the closer they are, the faster they move. Satellites revolve around planets in the same way.

Hope it clears things up a little.

Next time, please try to be more precise in username_0 questions. I answered it this time because I believe everyone has a right to know and there are no dumb questions, but username_0 question was very vague…


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