2007-12-11 10:46:21 · 4 answers · asked by marcus x 1 in Science & Mathematics ➔ Astronomy & Space
No. Stars are constantly being born and dying in galaxies. Our sun is about 4.5 billion years old. Have you seen the constellation Orion? The top, left shoulder is a star named Betelgeuse, which is thought to be only a few tens of millions of years old. A real youngster compared to the sun. Betleguese will die soon though, because it's a super giant. They burn up their fuel very quickly. Our sun will live on for many more billions of years. Also in our galaxy, we have observed places where new stars are being born, where they've just started to shine and we can only see them (through all the gas and dust) in the infrared.
And other galaxies are just like ours. There are stars of all ages and new stars are constantly forming.
2007-12-11 10:57:07 · answer #1 · answered by Christopher Secord 2 · 2⤊ 0⤋
No. The stellar age really depends on its mass. Stars in a galaxy has a large range of mass. The more massive ones come and go quickly (<1 million years), and smaller ones stay on a very long time (10 Billion years). A looking on a busy street might provide a good analogy, you see people walking around in all ages.
2007-12-11 18:56:15 · answer #2 · answered by OrionA 3 · 2⤊ 0⤋
Hi. Not usually. Globular clusters have stars of similar age but the rest of the galaxy's stars are forming, aging, and dying.
2007-12-11 18:55:44 · answer #3 · answered by Cirric 7 · 2⤊ 0⤋
nno... new stars form all the times, so not always.
2007-12-11 19:21:41 · answer #4 · answered by Anonymous · 0⤊ 0⤋