posted on Oct, 1 2012 @ 09:35 AM
This thread is more of a means to answering a question for me. I found myself wondering why the planetary orbits of our solar system are not
experiencing some form of degradation towards the gravity well that is our sun. After some brief research, I may have a well encompassing answer.
The planetary orbits are not stable and increase with time. For the beginning of the solar systems, all planets were closer to the Sun, and will
be more distant in the future. The cause is the relative instability of the planetary orbits and solar mass loss by radiation and solar wind. The
potential energy of planetary orbits relative to the solar escape energy (escape velocity) determines the stability of planetary orbits.
Link to harvard paper -->Link
My interpretation of the above is, that due the continuous reduction in mass of our sun, the gravitational pull of our sun is slowly but surely
weakening and over time will eventually fling our solar systems planetary bodies off into deep space.
The reason this topic entered my mind was because I was thinking of satellites and how they require bursts of energy to maintain their orbits as a
result of orbital degradation. Further to this, what will happen to the moon?
Just a thought on this topic, from a non-expert, is that the whole relationship between mass and gravitation pull seems ironic. Ironic in the sense
that within the context of our solar system, the Sun is the gravitational pinnacle and that similar stars (of greater mass then our own) have the
potential to be the gravitation beast known as a black hole.
Day dreaming about the unique processes of our universe is sometimes quite hard to comprehend, but quite fun to do.
Sort of Just taking out loud here and would love to read anyone’s input on the topic.
edit on 1-10-2012 by MDDoxs because: (no reason given)