Since we have a lot of tools to look into the galaxy have scientists ever came across stars wtih the exact chemical make up and age of our sun? Would these stars have formed in the same nebula that the sun was birthed in? And why did they drift away?
2007-11-18 14:09:34 · 6 answers · asked by Prince Auggie 2 in Science & Mathematics ➔ Astronomy & Space
No. Your understanding of the distribution of gasses and elements throughout the galaxy and universe is incorrect.
There are three generations of stars. Our Sun is among the third generation. First generation stars were generally more massive than those of today and thus had short lives and are no longer visible.
Nebulae that condense into stars exist throughout our galaxy and throughout our Universe. Each star condenses out of it's own nebula gasses. Sometimes, two stars can condense from the same nebula and form a binary star system.
The arms of the Milky Way are a good source for new stars to form in.
Our sun is an average star about 5 billion years old. There are stars older and younger and the same age as our Sun. The chemical makeup of stars varies. Generation 1 stars were composed of hydrogen, helium, and lithium. As these stars aged, they produced heavier elements. When they went supernova, they spread these elements into the universe and generation 2 stars were formed out of these elements. Generation 3 stars contained even some heavier elements including the carbon that allows for life forms. These elements are similar throughout our galaxy and throughout our Universe. They did not come from our Sun's nebula and they did not drift away.
2007-11-18 14:55:24 · answer #1 · answered by Troasa 7 · 0⤊ 0⤋
There are lots of G2 type stars in our galaxy. It's just an average dwarf star, although it would be even more average if it were a binary star. Chemical makeup from the same molecular cloud can spawn blue giants, red giants, and everything in between. Open star clusters do drift apart. In fact, it is said our sun was once part of the group of most of the Big Dipper stars.
2007-11-18 22:14:07 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The Sun is part of a group of stars moving in approximately the same direction at the same speed, known as the Perseus Moving Cluster. These include 5 of the 7 stars which make up the Big Dipper, among others.
2007-11-18 22:39:07 · answer #3 · answered by GeoffG 7 · 0⤊ 0⤋
Most of the stars are like our Sun. Some are different in that they have more metal in their molten cores and thus have a higher degree of gravity than others - attract and retain more gases.
Where stars mainly differ is in their overall size and age as far as the gas fusion process is concerned. Some stars are more than 100 times the size of our Sun, and very bright. Others are dim and almost burned out, if you will allow me to use that word.
No. All of the stars did not form in the same nebula. Stars are forming and reforming all the time out in deep space. you could consider the Gas Giants "Saturn", "Jupiter", and Uranus as having been possible stars that did not collect quite enough gas to become full fledged stars. Some day when major things happen in this Solar System, maybe they will get big enough themselves to become stars and form doublets or triplets with our Sun.
2007-11-18 22:31:28 · answer #4 · answered by zahbudar 6 · 0⤊ 1⤋
Stars are born in clusters like the Pleiades, but ours is completely scattered across the milky way after 5 billion years of drifting. It would probably be identify them.
2007-11-18 22:18:47 · answer #5 · answered by Anonymous · 0⤊ 0⤋
That's possible. They would drift away so that all galaxies might have one planet filled with living things. I honestly don't know.
2007-11-18 22:14:05 · answer #6 · answered by thaddeuswallstreet 2 · 0⤊ 1⤋