whats the difrence
Refractors use lenses, reflectors use mirrors.
The main factor in telescope performance is the diameter of the mirror or lens - not the magnification or power. A larger scope is a better choice if you want a scope that has potential to maintain an interest in astronomy. Any telescope, even a small telescope, can see exactly the same TYPES of objects - moon, planets, galaxies, nebulae, star clusters - as a large telescope, but a small telescope can't see as many of them or as much detail in them as a larger telescope. If you are concerned with performance, buy the largest telescope you can afford (not the one that advertises the most power) that has all the features you want.
In terms of size for the dollar, a reflector always gets you the most.
A great way to learn more on the basics of choosing a telescope is to first read my article, Telescope First Questions. This gets you started with the two most important decisions to make, right away. Then narrow your choice down even more with my article How to choose the right telescope This discusses the pros and cons of each telescope design.
- Site Admin
- Posts: 7665
- Joined: Wed Sep 24, 2003 3:09 pm