When were the first five planets discovered, and by who?

Subject: When were the first five planets discovered, and by who?

Date: Mon Dec 24 08:56:33 2001
Posted by Ashlie
Grade level: 10-12 School: Harvest Academy
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Astronomy
ID: 1009202193.As

Message:


I need to know when the first five planets were discovered (approximate time). 
I also need to know who discovered them. This is for a history project and I'm 
having considerable trouble finding out about Jupiter and Saturn's dates of 
discovery.

Re: When were the first five planets discovered, and by who?

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