astronomy Flashcards
Ptolemy
he said that planets rotate
Copernicus
that the earth rotates around the sun
Johannes kepler
he wrote laws about planetary motion
tycho brahe
he was an astromoner
Galileo
he made the first telescope
isaac newton
he whrote the laws of gravity
edwin hubble
he invented the hubble teliscope
Ursa major
contellation
ursa minor
a smaller contellation
Orion
a contellion
Canis major
a contellion
Cassiopeia
a contellion
Red giant
a type of star
White dwarf
the final stage of a star
supernova
this somthing happens hapens when a star explodes
black hole
a large vacume so powerful that not even light can escape
Parallax
Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.
light year
the distance light travles in a year
Polaris
a star
main sequence star
a normal star
