Guide :Optics : SkyTour 78-9960 (700 x 60mm) Telescope

Bushnell 345 We have been given a Bushnell telescope and don't know how to look at things right side up. Hope you can help. Thanks.

Posted by hodginsn on Jul 08, 2008

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Suggested Questions And Answer :


Bushnell 345 We have been given a Bushnell telescope and don't know how to look at things right side up. Hope you can help. Thanks.


This is normal behavior for an astronomical telescope. There is no right-side-up in the sky, and turning the image around adds cost and reduces optical clarity. You can buy correct image finders and image-erecting diagonals, if you choose to do so, but in general to reduce the cost to the consumer they are manufactured without them.
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Telescope is only good for viewing moon...help!!!


Your scope is 565mm focal length with a 60mm objective which makes it f:9.5. (telescope focal length divided by lens diameter)all this means that the optics are capable of viewing larger planets. nebula is a bit of a stretch. maybe under exceptionally dark skies with at least 30min. of dark adaptation. brighter objects like m42 or m31 should be visible, bear in mind that only very large telescopes will resolve the slightest hint of color in nebulosity. the rest of us are reserved to gray scale. i would suggest using a 26mm eyepiece plossl if available. next make sure your finding system is aligned to the scope. this is best done during the day at a distant object like a radio tower. center the object in the eyepiece then align the finder.next get your self a good sky map like stellarium software a freebie and a fav. to ensure your looking at what you think your looking at.a word on eyepiece selection. magnification is calculated by dividing the focal length of the scope by the focal length of the eyepiece. for instance the scope is 565mm the recommended eyepiece is 26mm so the magnification would be around 22x.a rule of thumb for optics is about 50x per inch of objective. which means your scope is good for about 100x. so by the math you would use a 5.6mm e.p. to achieve 100x, however as optical powers increase field of view decreases making it difficult to find objects. find your object with a wide field e.p. then switch to a higher power to zoom in. if the image gets fuzzy at high power attempt to refocus, if it doesn't clean up either your asking a bit to much from the scope or seeing conditions in the upper atmosphere may not be ideal. what ever you do don't give up there are some amazing things to see out there.
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I need an instruction manual for a Bushnell Banner Astro 280 D=60 mm F=700mm model 78-5500 Made in aoc. It is an old telescope and was sold without an instruction manual. I looked on the Bushnell site for the book but the name or model was not listed. I think it is at least 20 years old. Can you help me?


You will not find that manual. They all assemble and are used in the same way. Find a manual that is similar to your scope and use it.Off the Bushnell site here:http://www.opticsplanet.net/bushnell-warranty.html
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I am wondering how good you should be able to see images through a bushnell skytour 78-9960 telescope i can see the moon good but all the planets are really small and cant tell them from stars really. i have a 1.5x eyepiece 12.5mm lens 8mm lens and 4mm lens. Am i doing something wrong or is it just my telescope isn't powerful enough to see objects with any detail for like saturn or jupiter?


700mm FL with an aperture of 60mm gives you a focal ratio of 11.6, so you shouldn't even try using any EP with a FL shorter than 11.6mm, which mean only the 12.5mm would be of any use. Unless you can find a pitch black area with 0 light pollution and excellent seeing, then you could perhaps still get away with the 8mm. So with the 12.5mm, you're talking about a 56X magnification, so it would be rather hard seeing any details on the planets. You should be able to see Jupiter's moons (tiny dots) and Saturn's rings though.
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Clock won't keep time - Bushnell SkyTour 78-9960 (700 x 60mm) Telescope


It will NEVER keep time. You must re-enter the time, date each time you use it.
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Breakdown and storage


Why not simply take the tube off and store that in a bag, and then store the mount inside or in the garage. Next time it will be easy to take it outside in two pieces.www.telescopeman.orgwww.telescopeman.uswww.telescopeman.info
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New Telescope I returned my Bushnell 100mm maksotuv cassagrain...it was a bad peice. Now i'm deciding for a better one, one that has the same features like the GO To program that actually works and a sharp focus and tracking technology. I hope there is a telescope like that under $600. Any suggestions? Any help appreciated.


Meade and Celestron both make small goto scopes--http://www.meade.com/etx_premier/index.htmlhttp://www.universetoday.com/guide-to-space/telescopes/celestron-se/However can I persuade you to buy a nice PUSHTO Dobsonian like this one--http://www.telescope.com/control/product/~category_id=dobsonians/~pcategory=telescopes/~product_id=27183
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I got a telescope for bushnell it has the skytour hand set with it but i cant get it to give me the right area for the plants i live in canada


Do you have the manual? Most GOTO scopes have an alignment procedure that must be followed. For example_Train the drivesLevel the tripodSet telescope into the "home" positionAlign and center on two stars.Here is the web site where you can find all the manuals and also get customer service.http://www.opticsplanet.net/bushnell-warranty.html
Read More At : SkyTour 78-9960 (700 x 60mm) Telescope...

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