Describe the Universe
In Terms of Time, Distances, And Organization
What is Astronomy
Objectives
2. Identify the visible and non visible parts of the electromagnetic spectrum.
3. Compare refracting telescopes and reflecting telescopes.
4. Explain how telescopes for non visible electromagnetic radiation differ from light telescopes.
Universe
All existing matter and space considered as a whole.
Light Years
A unit of astronomical distance equivalent to the distance that light travels in one year.
Astronomical Unit
A unit of measurement equal to 149.6 million kilometers, the mean distance from the center of the earth to the center of the sun.
Electromagnetic Spectrum
The range of wavelengths or frequencies over which electromagnetic radiation extends.
Refracting Telescope
A telescope that uses a converging lens to collect light
Reflecting Telescope
A telescope in which a mirror is used to collect and focus light
Describe the Electromagnetic Spectrum
Compare The Refracting And Reflecting Telescopes
Invisible Light Telescopes
The invisible light telescope is not berry good down here in earth because its atmosphere blocks some of the radiation. So they just use this telescope to detect invisible radiation, like radio waves, infrared, all sorts of them. So this seen everywhere like dish, and direct tv use them for television programs. So these telescopes my not be better than the ones in space but still give them credit.