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Solar systems have been very hard to find until recently. With new technology, solar systems are slowly being found now. But, scientists estimate there may be many BILLIONS of solar systems in just our own galaxy. Here is a brief and well-done article that answers your question:
http://spaceplace.nasa.gov/en/kids/phonedrmarc/2002_march.shtml

2007-04-12 16:04:16 · answer #1 · answered by Anonymous · 1 0

Given a galaxy averages about 200,000,000,000 stars, we can make an estimate.

Appromixately 10% of stars appear to have solar systems, so around 20 billion solar systems. However, this may vary quite a bit between galaxies.

2007-04-13 06:17:42 · answer #2 · answered by Anonymous · 0 1

it all depends on your defenition of a solar system. if you mean stars having planets around them, then that answer is not yet known, however most stars form in the same process and tend to have disks of material orbiting around them, therefore planets should be quiet abundant. if by solar system you mean anything orbiting a star, well then there are about 100-200 billion solar systems in an average galaxy. i hope this helps!!!!!!

2007-04-13 02:39:54 · answer #3 · answered by Bones 3 · 0 1

THere could be any amount small galaxies could have maybe a million solar systems or bigger gallaxies wit htrillions and trillions of solar systems

But who Really Knows?

2007-04-12 16:15:13 · answer #4 · answered by huhwhatcaca 2 · 0 1

As we approach the galactic center solar systems are destroyed and only suns exist.
The only remaining solar systems are in the galactic arms.
They are identifying more all the time but so far it is only in the scores.
It is likely that most suns that evolved like our solar system have planets in orbit around them and most of the suns are in the galactic center did originally.

2007-04-13 00:39:52 · answer #5 · answered by Billy Butthead 7 · 0 1

There is about 100 billion stars in our galaxy.
But galaxies can be bigger or smaller than our own.

And not every star will have planets and will thus be a solar system.

Still, 100 billion is pretty much the order of the answer.

2007-04-12 16:02:30 · answer #6 · answered by Vincent G 7 · 1 2

In our own Milky Way Galaxy there are currently 219 known solar systems, our own plus 218 others. How many total there are in our galaxy is not known, nor is it known how many are in other galaxies.

2007-04-12 20:22:30 · answer #7 · answered by Chug-a-Lug 7 · 1 2

Astronomers keep discovering them, and some extrasolar planetary systems are still in their infancy, which means many more are being born. There might not be a fixed number. Check out some photos of extrasolar planets in the link below.

2007-04-12 23:20:35 · answer #8 · answered by alvinwriter 2 · 0 1

We have detected about 200, but we assume there are billions. The search is only beginning and new ones are being found every year.

2007-04-12 16:05:43 · answer #9 · answered by campbelp2002 7 · 1 1

We've found about a hundred so far, and we can only see the ones very nearby. So probably billions.

2007-04-12 16:04:05 · answer #10 · answered by eri 7 · 1 1

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