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.
2007-03-23 10:21:11 · 7 answers · asked by lollipop 6 in Science & Mathematics ➔ Astronomy & Space
Astronomical telescopes invert the image, because you don't care that a 'star' is upside down. The fewer mirror surfaces the light bounces off of, the less light is lost, the better.
Terrestrial observation telescopes do not invert the image (by adding an extra mirror to re-invert the image). You can always buy an astronomical telescope and add an image inverting mirror, too.
Hunters use small spotting 'scopes all the time. They have the inversion built into a prism inside the scope.
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2007-03-23 10:29:03 · answer #1 · answered by tlbs101 7 · 2⤊ 0⤋
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Not more magnification, but more light gathering capability. With an astronomical telescope, aperture (diameter of the telescope) is critical. The more light you collect, the more you can see. You'll also find that a terrestrial telescope is set up to show images right-side-up. Astronomical telescopes may invert the image; that doesn't usually bother the user. That's for the optics. The other big difference will be the mount. An astronomical telescope will likely have a mount that is, or can be motorized for tracking objects as the Earth turns. Probably a few things I've forgotten. But those are the big ones.
2016-04-10 23:31:49 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Terrestrial Telescope
2016-10-01 05:46:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋
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What is the difference between a terrestrial telescope and a telescope used for star gazing/identification?
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.
2015-08-18 16:02:59 · answer #4 · answered by Merrielle 1 · 0⤊ 0⤋
A terrestrial telescope has an extra feature. Telescopes all produce an upsidedown image, which is disconcerting if you are trying to observe a bird flitting about in a tree. So it has a mirror to invert the image. The mirror slightly reduces the amount of light coming to the eye piece. In astronomical telescopes we are viewing very dim objects, and the amount of light getting to the eyepiece is critical. So no correcting mirror is used.
2016-03-22 14:54:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋
There are two types of telescopes. They are Refractor and Reflector telescopes. Refractor telescopes have certain limitations due to chromatic aberration of lenses used. So after certain magnification, say 25x, it is not used for celestial observations. Reflector telescopes are good for high magnifications and are very widely used for celestial observations. Resolution is one more important factor in telescopes. This is very important in sky watching. For Higher resolutions Reflector telescopes are good. In reflector telescopes the image is inverted making it inconvenient for terrestrial use. Hope this will do.
2007-03-29 13:58:02 · answer #6 · answered by Wiser 2 · 1⤊ 1⤋
A terrestrial telescope is one that you use for looking at earthbound objects and people often call them spotting scopes. Star away from the wallmart versions and try something like celestron, bausch and lomb or swift
2007-03-23 10:27:25 · answer #7 · answered by Gene 7 · 0⤊ 0⤋
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2015-08-04 10:51:48 · answer #8 · answered by Anonymous · 0⤊ 0⤋