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NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne The Number of Asteroids in our Galaxy 
Name: jenny n wright
Status: N/A
Age: N/A
Location: N/A
Country: N/A
Date: 1993 - 1999
Question:
How many asteroids are in our galaxy?

Replies:
No one knows because no one knows how many stars have planetary systems. However, in our solar system, there are an estimated 45,000 asteroids; about 3000 are large enough to have had their orbital elements measured.

Hawley


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