What are the differences between a solar system and a galaxy?
What is the process of accretion of matter to for stars and planets..
please tell me a site/s that i can read the information not just what u know....please please..
thanks
i've found it hard to give and answer to those questions
2007-03-14 20:35:01 · 3 answers · asked by David B 1 in Science & Mathematics ➔ Astronomy & Space
A galaxy is a group of lots of stars. (Lots of meaning thousands of millions). All the stars orbit around the centre of the galaxy.
A solar system (like our own) is a bunch planets orbiting one star. There're many such systems out there, in various galaxies.
So, a galaxy is a group of stars, which may include many solar systems.
Accretion of matter is the process by which matter attracts matter (due to gravity) to become a massive object.
In relation to stars and galaxies, the accretion is what begins the formation of stars.
For sources... Wikipedia usually works, though it may be a bit hard to understand... plus check the bibliography thing
Hope it helps
2007-03-14 21:11:00 · answer #1 · answered by JJ 2 · 0⤊ 0⤋
Use Google. Put in the following words:
1) galaxy solar system definition
2) galaxy solar system difference
Same for other questions. Use the key words from your question and see what you find. If you get 12,000 hits and many are useless, refine your search by using "-" before a word to indicate you don't want that word. If I'm interested in river fords, I might put "-car" in the search.
2007-03-15 03:57:51 · answer #2 · answered by smartprimate 3 · 1⤊ 0⤋
"...What is the process of accretion of matter to for stars and planets.." ==>http://www.nineplanets.org/origin.html
2007-03-15 04:59:16 · answer #3 · answered by Chug-a-Lug 7 · 0⤊ 0⤋