Describing the universe
In terms of time, distance, and organization
What is astronomy?
Astronomy is the study of universe. Witch has galaxies planets stars and solar systems. Is all about the study of space and what it has what it dose. Has more planets galaxies and solar systems. So astronomy tells you all about it and how it has more planets. So in astronomy it gas also astrenamical units and light years those are distences from planets or galaxies. And there is still more out there in astronomy. So mostly astronomy is about space witch is the whole universe.
Objectives
1. Identifying the viable and non visible parts of electromagnetic spectrum.
2. Compare compare reflecting telescope and refacing telescope
3. Explain how telescopes for non visible electromagnetic radiation differ from light telescope
Astronomy vocabulary
Universe
Universe is the whole space involving galaxies, stars, planets, moons,nebulas, asteroids and meteors. In the universe there are lots of planets and stars. No one knows how big is the universe.
Light year
Light year the distance that light travels in one year. About 9. 46 trillion kilometers a other distance from earth to Proximal Centauri.
Astronomical unit
The average distance between the earth and the sun approximately 150 million kilometers (symbol, AU) anything else passing earth is more than a astronomical unit