True or False:1. Mirrors are used in some telescopes.2. Telescopes are often located in humid

environments because water vapor in the air enhances visibility of stars.

Star Gazers

Uses lenses to gather and focus light.

Refracting Telescope has an objective lens that bends light that passes through it and focuses the light to be magnified by an eyepiece.

Use mirrors to gather and focus light.

Light enters the telescope and is reflected from a large, curved mirror to a flat mirror.

The flat mirror focuses the image and reflects the light to be magnified by the eyepiece.

Refracting Telescopes- Telescopes that use lenses to gather and focus light are called refracting telescopes. A refracting telescope is shown on the next slide.

Reflecting Telescope -A telescope that uses a curved mirror to gather and focus light is called a reflecting telescope. A reflecting telescope is shown on the next slide.

Very Large Reflecting Telescopes- In some very large reflecting telescopes, several mirrors work together to collect light and focus it in the same area.