National geographic telescope NG 114mm 900 EQ Who makes this telescope and would you price this at $150.00 ( used)

Check out NG website for this data.

I think you are asking for a replacement focuser. You can probably find one here: http://www.ebay.com/itm/4-5-or-6-Telescope-Reflector-Tube-1-25-Newtonian-Focuser-Metal-Plastic-NEW-/360936594869?hash=item54097f5db5

A manual is another question. These scopes are imported and no manuals are available. However the manual only has assembly instructions it does not tell you how to use the telescope to find objects in the night sky.

Find a local Astronomy Club and the members will help you set it up-- very easy once you see it done 1 time.

Clear skies.

Yes, all astronomical telescopes show upside down images--- no up or down in outer space-- and you would need more lenses in the light path to erect the image.

Read my frequently asked questions tip on my profile page. Your question is asked just about every day by beginner amateur astronomers.

Do NOT attempt to look at the Sun through a solar filter! These can crack from the heat and you will be blinded instantly.

Most telescopes use a standard fitting eyepiece with a 1.25 inch outside diameter barrel. You can measure the mount where the eyepiece goes to make sure that yours is this size, then search on eBay or Amazon for "1.25 eyepiece" and you will find many available. None of these will be made by National Geographic, but any make will fit.

The other variable will be the focal length of the eyepiece, which is what determines it's power. The power of the scope will be the focal length of the main objective divided by the focal length of the eyepiece, so a 9mm eyepiece will give a higher magnification (and be dimmer and harder to focus and find objects) than a 20mm eyepiece. It is usual to have two or three different focal length eyepieces for viewing different objects.

You will find a large variation in prices, which is partly due to the difference in quality and type of construction of the eyepieces. Kellner eyepieces are simple and cheap, whereas Possl or orthoscopic ones are more complex and cost more. There are reasons why people will pay more for the better eyepieces. Avoid eyepieces marked with the letters "H" or "SR" before the focal length.

Hi,
Please get your similar manual in pdf file at this link :
http://www.citiwellint.com/manuals/264966_NG55CS_English_Manual.pdf
Regards, Jay

Here are all of Meade Telescope manuals--

http://www.meade.com/manuals/index.html

Find one under either REFLECTOR or REFRACTOR that is similar to your scope. There are no manuals available for National Geographic, but they all assemble in a similar fashion.

This is NOT a computer controlled scope--
http://www99.shopping.com/xPO-National-Geographic-National-Geographic-70mm-Compact-AZ-Refractor-w-table-top-tripod-

You probably have some kind of CD disk that has a planetarium program on it.

Here is a review of the telescope.
http://www99.epinions.com/reviews/pr-National_Geographic_NG70CA_Telescope

Here is the manual:
http://www.scribd.com/doc/11827347/Tasco-Telescope-Manual

This is a small reflector telescope. If it is on an EQ mount, the mount must be roughly polar aligned in order to use the telescope. Read my EQ TIP on my profile page.