Animalscaretips
Earth Science - Stars, Galaxies, & the Universe
| A | B |
|---|---|
| OBSERVATORY | A building that contains one or more telescopes. |
| SPECTROGRAPH | An instrument that separates light into colors and photographs the resulting spectrum. |
| GALAXY | A giant structure that contains hundreds of billions of stars. |
| UNIVERSE | All of space and everything in it. |
- What are the two main telescopes?
- How many observatories are there?
- What are most telescopes today?
- How many telescopes are there?
- What are the 3 main types of telescopes?
- What does the word observatories mean?
- What is an astronomy observatory called?
- Where are the largest telescopes?
- What are ground based telescopes?
What are the two main telescopes?
There are two basic types of telescopes, refractors and reflectors. The part of the telescope that gathers the light, called the objective, determines the type of telescope. A refractor telescope uses a glass lens as its objective.
How many observatories are there?
There are over 350 professional observatories operating in the United States. Here are the 15 largest telescopes in the U.S.
What are most telescopes today?
However, most telescopes today use curved mirrors to gather light from the night sky. The shape of the mirror or lens in a telescope concentrates light. That light is what we see when we look into a telescope.
How many telescopes are there?
The three main types are reflecting telescopes, refracting telescopes, and catadioptric telescopes. Radio telescopes collect and focus radio waves from distant objects.
What are the 3 main types of telescopes?
There are three main types of telescope. These are refracting telescopes, Newtonian telescopes and Schmidt-Cassegrain telescopes.
What does the word observatories mean?
Definition of observatory
1 : a building or place given over to or equipped for observation of natural phenomena (as in astronomy) also : an institution whose primary purpose is making such observations. 2 : a situation or structure commanding a wide view.
What is an astronomy observatory called?
Astronomical observatories are structures containing telescopes and auxiliary instruments with which to observe celestial objects. Telescopes provide a means of collecting and analyzing radiation from celestial objects, even those in the far reaches of the universe.
Where are the largest telescopes?
The largest optical telescopes in the world are the W. M. Keck telescopes on top of the dormant volcano Mauna Kea in Hawaii. At an elevation of 13,800 feet, the Keck telescopes are above much of the cloud cover. The two Keck telescopes each have a diameter of 33 feet!
What are ground based telescopes?
A telescope on the ground has to look through the Earth's atmosphere to see into space. This is a problem because the atmosphere can blur our images. The air also blocks out light from parts of the electromagnetic spectrum.
