Scoping out the Galileoscope: $15 telescope designed by professional astronomers
cosmiclog.msnbc.msn.com
cosmiclog.msnbc.msn.com
Still, well done.
In any case, cheap cameras give very poor results, but if you want to try one you can always do this: http://www.youtube.com/watch?v=9khTIkwNmW8
I can see a lot of cool little science fair projects with something like this, not all for astronomy either, eg mount 2 of them in parallel and build a stereoscopic analysis tool.
I mean, yes, they opted for a modern achromatic lens - they also chose plastic instead of wood - but that doesn't change the basic point of the scope.
http://www.xomba.com/15_telescope_lets_you_see_more_than_gal...
http://www.universetoday.com/2009/04/27/the-celestron-firsts...
Anyway, the problem with tiny little reflecting scopes is that you need a table to set them up on. When you're out in a dark field looking at the stars, there's rarely a table handy.
It is possible to assemble the Galileoscope in an alternate configuration that has the same magnification as the scope that Galileo used.
The real purpose of the Galileoscope is not to build a replica, but to build a cheap but high-quality telescope so that anyone (including children in schools that receive donated scopes) can see what Galileo saw: Saturn's rings, Jupiter's moons, and detailed views of our own moon.
If you're referring to the Galileoscope, yeah, I know that.
To stabilize it very cheap.
If you want something with more depth, I highly recommend Night Sky from St. Martin's Press. It's a little 300 page field guide that will give you a comprehensive introduction to the heavens and basic astronomy and provides you with enough data to go out observing with. The first quarter of the book is devoted to introducing the fundamentals of astronomy from the celestial sphere, to coordinate systems, to telescope designs, to the magnitude system, to variable stars, and stellar evolution. The rest of the book contains star charts, detailed descriptions of each of the constellations and interesting objects therein, and information on the planets. The only problem is that the book is a bit old, so the tables of data (sunset times, positions of the planets, etc.) are now out of date. Nevertheless, it's well worth buying.
If you would like a more serious introduction to astronomy and know some basic physics and calculus, you can do no better than to read Introduction to Modern Astrophysics by Carroll & Ostlie (affectionately known as BOB -- the Big Orange Book). It's about 1500 pages long and covers absolutely everything in astronomy. It's clear, comprehensive, and will likely tell you everything you need to know.