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Thread: Binoculars

  1. #1 Binoculars 
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    Are binoculars good for Astronomy? I have an 8x30 (Magnification x8, Aperture 30mm) pair of binoculars.


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  3. #2  
    Forum Sophomore CaveatLector's Avatar
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    Besides being usually low in magnification, binoculars are very difficult to hold steady.

    A small, perhaps 150x magnification, telescope is relatively inexpensive, good for beginers, and very easy to keep stable.

    Good luck, Chuck.


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  4. #3  
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    Relative to a college student's income, how expensive exacly is a telescope of that magnitude? hehe
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    Forum Sophomore CaveatLector's Avatar
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    Depedns on where you buy, I suppose.

    Found a Bushnell 78-9518 Deep Space 675 x 4.5-Inch Reflector Telescope on Amazon.com for just over $200 (US). Look to spend about that much anywhere.

    Ebay probably has some good deals too.
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  6. #5  
    Forum Isotope (In)Sanity's Avatar
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    Never ever base a telescope on it's magnification (150x). You base a telescope on it's aperture and quality of optics. Any telescope can get to any magnification, the problem is they all have practical limits where the image quality suffers. Too much magnification and you end up with junk.

    I good starter scope would be an 80mm refractor or a 114mm reflector. A dobsonian reflector is a nice start.


    Good place to start

    http://www.cloudynights.com/ubbthrea...oard/beginners

    As far as bino's go, many many people use them all the time for astro observing.

    Edit:

    Note also that the amount of light you can see decreases with the magnification. So the more aperture the better.
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  7. #6  
    Forum Junior Cuete's Avatar
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    Can't say that telescopes are better than binoculars... it depends on what use you want to give them:

    -> Telescopes are much superior if you want to observe steady objects like the moon, planets, stars, galaxies, etc.

    -> Binoculars are better if you want to observe moving objects like comets, artificial satellites, the ISS... you know, that kind of stuff. You can't do this with a telescope.
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  8. #7  
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    Quote Originally Posted by Cuete
    Can't say that telescopes are better than binoculars... it depends on what use you want to give them:

    -> Telescopes are much superior if you want to observe steady objects like the moon, planets, stars, galaxies, etc.

    -> Binoculars are better if you want to observe moving objects like comets, artificial satellites, the ISS... you know, that kind of stuff. You can't do this with a telescope.
    Umm, steady object ? Hard to find while on earth.

    If you get a computer controlled scope you can track slow moving objects like stars and galaxies as well as fast moving objects like satellites and such. I have no problem tracking any of these. Comets don't really move all that fast, pretty much the same as planets do, unless they get really really close to earth. The moon is about the fastest moving object next to satellites. I can track the ISS with my scope if I tell the computer to start tracking once it's centered in view. It moves pretty fast. Couple minutes across the sky.
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  9. #8  
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    I meant to go out with the binoculars tonight but it's cloudy! Grr!
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