This document discusses telescopes and how they work. It explains that telescopes use either lenses or mirrors to collect light from distant objects and magnify the image. Larger lenses and mirrors allow telescopes to gather more light and provide brighter, clearer images with better resolution. Telescopes also use eyepieces to further magnify the enlarged image formed by the objective lens or mirror.

2. The purpose of a telescope is
to make things easier to see:
to make the invisible visible,
and to make things already
visible visible more clearly.

3. An instrument that aids in the
observation of remote objects by
collecting electromagnetic
radiation (such as visible light).
They found use in terrestrial
applications and astronomy.

4. 26 pieces

5. • uses a combination of
lenses to form an image
• Large lenses re difficult to
make
• uses a curved mirror and
a lens to form an image
• Large mirrors are easier
to make
Both types accomplish the same things, but in completely different ways.

6. If we had bigger eyes, we could collect more light from the
object and magnify the object…
Fortunately, In telescope two
pieces make it possible
1)The or
2)the

7. The (in refractors) or (in reflectors)
collects lots of light from a distant object and brings that light, or an
image, to a focal point.
takes the brought light from the focus of objective
lens or primary mirror and spreads it out (magnifies it) to take up a
large portion of retina.

8. A telescopes ability to gather light
Directly related to the diameter of the lens or
mirror
The larger the aperture, the more light a
telescope brings to focus, and the brighter the
final image is

9. The ability to separate two objects
very close to each other
Telescope increases resolution
The bigger your telescope objective,
the better your resolution
There is a limit of resolution!

10. o Ability of a telescope to enlarge an image
o Depends on the combination of lenses it
uses
o Performed by the eyepiece
o Filters are pieces of glass or plastic used
restrict wavelength of light that come with
an image

12. Thank
you!