What are the main stages of our sun during its formation?
What are the relative sizes of the planets?--including the planets?
2006-10-10 08:53:46 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
The Sun formed from a gas and dust cloud 4.5 billion years ago and settled down as a G type main sequence star, slowly changing its hydrogen into helium and energy over the next 9 billion years, after which it will collapse, heat up and start fusing helium into heavier elements which will cause its outer layers to expand way out to Earth's orbit, at which point it is a red giant. Eventually, all its nuclear energy will be exhausted and it will shrink to a white dwarf.
The Sun is 10 times the diameter of the biggest planet, Jupiter, and 100 times the diameter of Earth.
2006-10-10 09:08:00 · answer #1 · answered by campbelp2002 7 · 1⤊ 0⤋
There are four:
Let there be light
There was light
Light for day
And it was Good!
2006-10-10 09:58:27 · answer #2 · answered by orion_1812@yahoo.com 6 · 0⤊ 5⤋