These are the type of telescope used by the astronomers astronomical features night skiing as the Milky Way, planets and the moon. Using astronomy telescope is cheaper to buy a telescope as well as they are much easier to use. The main reason they are easier to use is that you can use both eyes to see the night sky instead of using one eye. Astronomy binoculars are wonderful introductory device for people who are just starting out learning the night sky. In addition, if they decide they do not want to do this anymore then they have not spent a lot of money as they would have on the telescope. Most astronomers like using binoculars instead telescopes because you do not need to use a tripod with binoculars even as the size increases.

astronomy binoculars look pretty much the same as the general binoculars but astronomy binoculars you want to make sure that the expansion, exit pupil size, target power or diameter these are all very important feature of binoculars used for astronomy. There are also a certain number who are dedicated to astronomy telescope objective point of power and expansion which are usually ten times fifty or fifty-seven times.

When you look at these numbers you need to remember that the first number is the magnification number that means that if the figure is ten times fifty, things that you are viewing are ten times larger than they would be if you look them without binoculars. The second number is in millimeters and the objective diameter large diameter lenses in front of the astronomical telescope. If the numbers were ten times fifty objective diameter was fifty millimeters. Sometimes very large in some astronomy telescope objective diameter but this can make them heavy and cumbersome to use.

The last important aspect of this type of telescope’s exit pupil figure that should not really be bigger than your own students at night. If man is the fourth time his students at night are seven millimeters and as you turn it down forty six millimeters. About ten years pupil size drops by approximately millimeter. In order to get the right exit pupil size you need to replace the object glass of the expansion so if the numbers are ten times fifty exit pupil size was about five mm. Most times larger expansion number is small exit pupil numbers will be such that there will be less wasted light. Astronomy binoculars vary in price so comparison shop before buying.