Welcome to the PC Owl Web Directory.
PC Owl Web Directory





C8 Polar Alignment Problems?
A how-to, do-it-yourself project for making your own altitude and azimuth adjusters for easier polar aligning the Celstar C8 telescope. Also has a roll about, leveling tripod base.

Eyepieces and Choosing an Eyepiece Set
How to select a proper eyepiece set to extract the best possible images from any telescope. Why certain eyepieces work better with each other in a set.

Measuring Reflectivity of Secondary Mirrors
an article by Dave Scherping of the Prairie Astronomy Club.

Observing Tips
Seven tips on a wide variety of topics concerning amateur observing.

The Prairie Astronomy Club: Telescope Buyer's Guide
Gives a description of each different type of telescope and lists their strengths and weaknesses. Contains many photographs of different telescopes.

Nexstar 11GPS Astronomy
General astronomy site with Specific information about the Celestron Nexstar 11GPS.

FAQ about Collimating a Newtonian telescope
How to collimate a Newtonian telescope. A complete article in a question and answer format.

All About Eyepiece Designs
The article describes the different eyepiece designs (such as Huygens, Ramsden, Kellner, and Plössl) and lists their inherent advantages and disadvantages.

Scope Reviews
A review site with many different telescopes listed. Also contains accessory reviews, many photos and advice on purchasing a telescope.



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