what was Brahe's theory?

the sun and moon orbit earth and other planets orbit the sun

what was Kepler's theory?

the solar system is heliocentric, and everything orbits in the shape of an ellipse

what was Copernicus' theory?

the solar system is heliocentric.

what was Galileo's theory?

the solar system is heliocentric. his contribution was discovering the moon's craters.

what was Hubble's theory?

the universe is always expanding

what was Newton's theory?

the law of gravity (all objects attract each other through gravity)

how can you find Polaris?

you take the head of the big dipper (Merak and Dubhe), follow the line made by the two stars, and you'll get to the tail of the little dipper, or Polaris.

how can you find Arcturus

look at the star at the tip of the big dipper's tail, with a slight upward shift being made from the star previously mentioned and the one before it, you should get to Arcturus.

what are the stars in the summer triangle?

Vega, Deneb, and Altair. (I recommend looking at a picture so you could spot the constellation on a test.)

what did Hubble use to figure out the universe was expanding?

he used computers to observe that the red shift of galaxies was directly proportional to the distance of the galaxy from earth. from there he figured out that the universe is expanding and That galaxies beyond the milky way exist.

why do different hemispheres see different stars throughout the year?

because of earth's revolution around the sun

why is astronomy an old science?

because the stars helped people navigate through things, like the ocean, and so the shifting of the stars, the different objects in the sky, etc. became an area of interest.

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intro. to astronomy

Question	Answer
what was Brahe's theory?	the sun and moon orbit earth and other planets orbit the sun
what was Ptolemy's theory?	the solar system is geocentric
what was Kepler's theory?	the solar system is heliocentric, and everything orbits in the shape of an ellipse
what was Copernicus' theory?	the solar system is heliocentric.
what was Galileo's theory?	the solar system is heliocentric. his contribution was discovering the moon's craters.
what was Hubble's theory?	the universe is always expanding
what was Newton's theory?	the law of gravity (all objects attract each other through gravity)
how can you find Polaris?	you take the head of the big dipper (Merak and Dubhe), follow the line made by the two stars, and you'll get to the tail of the little dipper, or Polaris.
how can you find Arcturus	look at the star at the tip of the big dipper's tail, with a slight upward shift being made from the star previously mentioned and the one before it, you should get to Arcturus.
what are the stars in the summer triangle?	Vega, Deneb, and Altair. (I recommend looking at a picture so you could spot the constellation on a test.)
what did Hubble use to figure out the universe was expanding?	he used computers to observe that the red shift of galaxies was directly proportional to the distance of the galaxy from earth. from there he figured out that the universe is expanding and That galaxies beyond the milky way exist.
why does it seem like stars are moving through the night sky?	because of earth's rotations
why do different hemispheres see different stars throughout the year?	because of earth's revolution around the sun
why is astronomy an old science?	because the stars helped people navigate through things, like the ocean, and so the shifting of the stars, the different objects in the sky, etc. became an area of interest.

Created by: user-2012723

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