A body remains in uniform circular motion around another body due to the centripetal force between them, when the first body keeps moving with a specific velocity.
This is more possible in an isolated system. For Earth and Sun for example, say if Earth is moving with the required velocity then doesn’t the attraction of Jupiter, Mars, a random asteroid cause deviations here. And if due to that the Earth is moving away or closer to Sun, then looking at the age of the solar system shouldn’t the whole solar system have collapsed by now?(1)
And is it a meer coincidence for 8 planets to come in a specific radius with specific velocity around the Sun and the system continuing for billions of years? (2)
Because otherwise it would mean more like this-someone held Earth and the Sun at a specific distance apart and gave Earth a specific velocity through a very precise torque to initiate circular motion and with gravity as the centripetal force Earth keeps revolving around the Sun. Is that how a motion as such as the planetary revolution occur? With a precise initial torque, quickly removed and the centripetal force to carry on the uniform circular motion?(3)
In fact looking at the specific velocity requirement it should be nearly impossible for revolutions to happen in the universe. But that is not how facts are, then where is the flaw in my concept?(4)
Actually it’s not about why our solar system, it’s more like why is it so common across the universe because there are trillions of solar systems there, many within our galaxy, our solar system is just an example to state the problem, what I mean is that it should not be highly unlikely for it to happen, so there is some mistake in my theory, so given my idea, what is wrong in my concept that’s causing a clash with the facts
Also please suggest the right tags for this question(5)