Telescopes – Glossary

Introduction With the purchase of a telescope, you also purchase the eyepiece that comes with it. And if you still…

Resolving power (or resolution) of an optical telescope is the ability to see small details in the image. It is…

Magnification of telescopes is calculated by dividing the objective focal length with the eyepiece focal length. To change the magnification,…

Aperture One of the essential features of a telescope is its aperture. Depending on the type of telescope, the aperture…

Magnification is the ability of a telescope to magnify an object. A lot of observers, not only beginners, don’t understand…

The light gathering power (also light grasp) is an ability of a telescope to collect more light than the human…

In astronomy, the magnitude refers to a logarithmic measure of the brightness of a celestial body. The larger the magnitude…