Here are some examples of cheap but useful telescopes:
Now, before you buy one please consider the following:
1.- There are two basic types of telescopes: Galilean (refractor) and Newtonian (refelctor)
2.- Refractors are mostly used to observe shining objects such as stars, planets, cumulus and the moon.
3.- Rflectors are especialized in diffuse objects such as nebulas and galaxies.
(however it is possible to observe any kind of celestial objects with both types of telescopes)
No hay comentarios.:
Publicar un comentario