section 1 terms
section 2 terms
section 3 terms
all sections
the astronomers
100
the study of the universe.
What is astronomy
100
an instrument that collects electromagnetic radiation from the sky and concentrates it for better observation.
What is a telescope
100
a region of the sky that contains a recognizable star pattern and that is used to describe the location of stars
What is constellation
100
instrument used to describe the location of a star or planet
What is an astrolabe
100
the assistant of Brahe
What is johannes kelper
200
the time required for the earth to orbit once around the sun.
What is year
200
a telescope that uses a set of lenses to gather and focus light from distant objects
What is a refracting telescope
200
the point in the sky directly above an observer on earth
What is zenith
200
most common type of telescope
What is optical
200
one of the first people to use a telescope to observe objects in space
What is galileo
300
the division of the year based on the orbit of the moon around the earth
What is month
300
a telescope that used a curved mirror to gather and focus light from distant objects
What is a reflecting telescope
300
the angle between the object in the sky and the horizon
What is altitude
300
one advantage of a reflecting telescope
What is curved mirrors, larger mirror
300
showed that all objects in the universe attract each other through gravitational force
What is Isaac Newton
400
the time required for the earth to rotate once on its axis
What is day
400
all of the frequencies or wavelengths of electromagnetic radiation
What is electromagnetic spectrum
400
the line where the sky and the earth appear to meet
What is horizon
400
the apparent path of the sun across the sky throughout the year
What is the ecliptic
400
even though his theories were incorrect, he predicted the motions of the planets better than any others in that time
What is ptolemy
500
ptolemy thought the earth was the center of the universe. what is this called?
What is the ptolemy theory
500
a reflecting telescope that has 36 mirrors
What is the keck telescopes
500
the distance that light travels in one year; about 9.46 trillion kilometers
What is a light-year
500
measure of how far north or south an object is from the celestial equator
What is declination
500
name all 7 of the early astronomers
What is ptolemy, copernicus, brahe, kelper, galileo, newton, hubble.
M
e
n
u