what is a telescope used for
A telescope is an instrument used to see objects that are far away. Telescopes are often used to view the planets and stars. Some of the same optical technology that is used in telescopes is also used to make binoculars and cameras. Light gathering ability-The better a telescope can gather light, the better you will be able to see far away stars and faint objects in the night sky. 2  This feature is usually determined by the size of the aperture of the telescope. 3  The larger the aperture, the more light the telescope can gather.