Refracting Telescope Facts
Refracting Telescope Facts
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| Interesting Refracting Telescope Facts: |
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| The largest refracting telescope in the world is in Wisconsin. |
| The largest refracting telescope was built in 1897. |
| The largest size of any one lens in a refracting telescope is 1 meter. |
| Refractors are outdated because their image can sometimes be distorted and blurred. |
| Although refracting telescopes are seemingly outdated, they are the better option for a beginning sky observer. |
| The refracting telescope that was used by Galileo was less than 2 inches long. |
| The farther apart the lenses are inside of refractor, the clearer the image will be. |
| At one point, Johannes Hevelius built a refractor that was 158 feet long and was very difficult to use. |
| In 1733, an achromatic lens was developed that corrected some of the distortion of the normal refractor lens. |
| Refractor telescopes should be no longer than 40 inches in order to be easy to use. |
| There are two lenses inside of a refractor: a concave lens and a convex lens. |
| The concave lens inside a refractor focuses the light given off by an object into one focus point. |
| The convex lens inside of a refractor is used to spread out the light from the concave lens in order to see a clearer view of a faraway object. |
| Although refractor lens are still used in small telescopes, they are better used in binoculars and gun scopes. |
| Galileo's best refractor was able to magnify an object 30 times. |
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