In a lively, conversational style, it describes all types of objects visible in backyard telescopes, details what astronomers know currently about the objects in the universe, provides tips on how to find and view the best objects visible in binoculars and telescopes, and describes the many different types of telescopes, with tips on how to separate the good from the bad. Many would say that the time has come to invest in a pair of binoculars. There are about as many types of binoculars as there are people who use them. We'll sweep through the basics here, but if you're interested in a more complete account of how to choose the right pair for your needs. For astronomical purposes, when choosing a pair of binoculars, the things most important to consider are optical quality, magnification, light-gathering power, and exit pupil.
Cost too is likely to be a consideration.
Where optical quality is concerned, the rule of thumb is that you get what you pay for. The more you can save for the pair you eventually buy, the more you'll be able to see. And remember, a good pair of binoculars should last a lifetime. Essentially, the role of binoculars is to collect light in order to magnify a distant object and make it easier to see. The magnification of a pair of binoculars, indicated by the first number on the binoculars' housing, tells how much closer an object will look than if no magnification were used.