Telescopes - Page 80

Telescopes are optical instruments designed to observe distant objects by collecting and magnifying light or other forms of electromagnetic radiation. They typically consist of a set of lenses or mirrors that focus light, allowing for the detailed observation of astronomical objects such as stars, planets, and galaxies. Telescopes can be classified into various types based on their design and the elements used to gather and focus light, including refracting telescopes, which use lenses, and reflecting telescopes, which utilize mirrors. They can also be divided into professional telescopes, used by astronomers for research, and amateur telescopes, which are often employed by hobbyists for personal exploration of the night sky. The invention of the telescope marked a significant advancement in astronomy, greatly enhancing our ability to study celestial phenomena.