meade-90mm-refractor

Real Astronomy with Small Telescopes - Step-by-Step Activities for Discovery

It is often said that users of small telescopes can conduct worthwhile scientific work, but how is seldom explained except in the context of observations carried out by the most advanced amateur astronomers. There are two objectives to these activities: to re-enact the process of discovery and to provide amateur observers with the knowledge and skill that will be the starting point for serious work. Emphasis is on measurement and discovery activities rather than on casual observing.This book is about using an 80mm refractor / 90mm Maksutov (such as a Helios 80 or Meade ETX90) as more than a quick look instrument, but rather something capable