Download an object that moves around another object in space

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Transcript
Earth, Moon, & Sun
SOL 4.7
an object that moves
around another object
in space
satellite
a huge burning sphere
of gas
star
the path an object,
such as a planet,
makes as it revolves
around a second object
orbit
a group of objects in
space that move
around a central star
solar system
The motion of a planet
as it turns on its axis.
This takes 24 hours to
complete.
rotation
The movement of any
object in orbit, such as
Earth moving around
the Sun, which takes
365 ¼ days to
complete
revolution
an imaginary line which
runs through both poles
of a planet
axis
a large object that
moves around a star
planet
the different shapes the
moon seems to have
as it orbits around
Earth
phases
I was a Greek astronomer who
believed in the Earth-centered
model of the universe
(Geocentric). This means I
thought the Earth was the
center of the universe! Boy was
I wrong!
Aristotle
I was an Egyptian astronomer who
believed in the Earth-centered
model of the universe (Geocentric).
This means I thought the Earth was
the center of the universe! I was
wrong!
Ptolemy
I was a Polish astronomer who
challenged the Geocentric model of
the universe. I introduced the Suncentered model of the universe
(Heliocentric). I believed the Sun
was the center of the universe.
Copernicus
I was an Italian astronomer who
believed the Sun-centered model of
the universe (Heliocentric). I was
even put in jail for a long time
because of my belief!
Galileo