Astronomy Flashcards
Believed that the Earth was the center of the universe and the planets and sun revolved around the Earth.
Ptolemy
Believed that the sun is the center of the universe and all the planets revolved around the sun.
Copernicus
Brahe recorded very precise observations of the stars and planets.
Brahe, Tycho
Used Brahe’s work to determine that all the planets revolve around the sun in elliptical orbits.
Kepler, Johannes
Used a telescope to make important discoveries about the moon and sun.
Galileo
Discovered that all objects in the universe attract each other through gravitational force.
Newton, Issac
Proved that other galaxies exist beyond the Milky Way.
Hubble, Edwin
A constellation in the northern sky, means greater bear.
Ursa major
Also known as the Little Bear, is a constellation located in the far northern sky.
Ursa minor
A prominent constellation located on the celestial equator and visible throughout the world.
Orion
A constellation in the southern celestial hemisphere.
Canis major
A constellation in the northern sky named after the vain queen Cassiopeia, mother of Andromeda.
Cassiopeia
A large, reddish star late in its life cycle.
Red giant
A small, hot, dim star that is the leftover center of an old star.
White dwarf
The location of on the H-R diagram where most stars lie.
Main-sequence star
