Astronomers and Stars Flashcards
Believed that 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
Recorded very precise observations of the planets and stars.
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, Isaac
Proved that other galaxies exist beyond the Milky Way (our galaxy).
Hubble, Edwin
A constellation in the northern sky, whose associated mythology likely dates back into prehistory. Its Latin name 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, in Greek mythology.
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 on the H-R diagram where most stars lie.
Main-sequence star
