How do you calculate the resolution of a telescope?

Monday, June 7th, 2010 at 3:52 am

The diameter of the Hubble Space Telescope is 2.4 meters; the diameter of the new Chilean telescope is 9.6 meters.

How many times better is the theoretical resolution of the new Chilean telescope (the best possible resolution that the Chilean telescope could achieve if nothing else outside of the telescope itself acted to make the resolution worse) compared to the theoretical resolution of the Hubble Space Telescope? Again, show your work or explain your reasoning.

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What is a good telescope to purchase for a beginner, not to expensive but still something I will like to use?

Friday, June 4th, 2010 at 12:04 pm

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I like looking at the stars from time to time and I would like to take a closer look at them with a telescope and I would to know about a decent one I can buy. Can anyone help?

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What is the difference between a terrestrial telescope and a telescope used for star gazing/identification?

Tuesday, June 1st, 2010 at 7:39 pm

Comments (4)

I want a telescope to look at land structures across a body of water. I will also need a tripod. Are there any manufacurers that I should avoid? Thank you.