Are there other stars as big as the sun in the galaxy?

Question

Do you think there is another planet in other systems favourable for human existence?

Answer 1

if you think about how huge the number of stars in a galaxy is. then chances are ther'll be lots of stars similar size to the sun.

as for planets capable of sustaining life, possibly. however we are nowhere near able to get far enough to use them.

Answer 2

Here are link to two Hertzsprung-Russell diagrams. It shows in an orderly manner star size (including our sun which is about in the middle) temperature and luminosity.

http://en.wikipedia.org/wiki/H-R_diagram#External_links
and
http://outreach.physics.utah.edu/labs/star_life/hr_interactive.html

From Astronomy magazine April 2006 page 46 titled "Meet the Neighbors" is an excellent article about other suns within a sphere 30 light years across with the earth's sun at the center. The count is 59 stars within that range. About 2/3 of our neighbors are cool M class dwarfs. The remainder are white dwarfs and main sequence stars.

Three stars are larger than our sun. They are

Alpha Centauri A is 4.4 lights years away, just slightly larger than our sun.

Procyon A is 11.4 light years away

Sirius A is 8.6 light years away.

The letter A indicated that this is part of a multiple star system.

To answer your second question if exoplanets through our galaxy can favor human existence - probably somewhere but at this time we do not have the technology just yet to find those planets.

Hope this helps.

D.bumstead

Answer 3

Sun is just a medium sized star. And there are many other stars which are larger in size that our sun. Our sun is just a small star when compared to other bigger stars. There could be many billions of stars which are not found but which are so much bigger and powerful with heat and light than our sun.
There should be another planet in any solar system which is good for the human existence. But there are so much of factors which we have to consider on that case.

Answer 4

Within the Milky Way Galaxy it has been estimated that there are more than 200 Billion stars. Our Sun is a star, and a rather small one at that. There are many, many stars within the Milky Way Galaxy that are "as big as" our sun, and a larger number that are "bigger" than our Sun.

Beyond our Galaxy there are thousands and thousands of other galaxies which each contain billions of stars. So, in a
more complete answer to your question, I would suggest that there are millions and millions and millions more stars that are the same size as our Sun.

As far as other earthlike planets are concerned, yes, the possibility for the existance of earthlike planets. Each star within the Milky Way Galaxy (and in all other galaxies) has the capacity to have from 0 to 10 (or more) planets orbiting it along with their associated moons. That is a simply incredible number of possibilities for the existance of one or more earthlike planets.

However, using our current search techniques, the majority of our "finds" have been extremely large planets which are orbiting other stars at a close distance because those planets tend to influence the stars the most (makes detection easier). Smaller, rocky planets (such as Earth) orbiting within the acceptable distance (not to close - to hot; not to far - to cold) of about 95,000,000 Miles from the Star, are much harder to detect. To review the most recent exoplanets discoveries please see:

www.exoplanets.org

Answer 5

The sun is an average sized star of the class G2. There are lots of stars of that size. As to your other question habitable planets are formed by life. It would have to be a planet which had evolved a biosphere with a biochemistry pretty much identical to our own since to survive we require nutrients and vitamins. Were a planet to be missing a single necessary substance, we could probably not live there unless we could grow our own crops. I suspect a problem might occur in attempting to grow earth crops in an alien environment. Perhaps under controlled conditions. Difficult question.

Answer 6

The Sun is actually a medium size star so imagine how big a full one will be.

Answer 7

holy crap yes their are star 20 tomes and greater the mass of the Sun in the galaxy, the sun is a relatively small star.

Answer 8

actually our sun is a medium sized star. so yes there are bigger stars out there. as for the possibility of life elsewhere, wny not. it happened here, could happen somewhere else!

Answer 9

Yes, there are billions of sunlike stars in the galaxy.

Answer 10

The Sun ------------ BIG!--------- not by a long shot! Its a plain jane main sequence star that is totally ORDINARY--- if you want to see BIG check this link out.
http://www.brevardastro.org/albums/UniverseScale/photo4.html