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What was ptolemy trying to explain in his model by having the planets move move on circles that move on bigger circles?
Ptolemy is trying to explain in his model that each circle represents 1 planet's rotation and it's a scale drawing of the distance apart from each one!
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What was Ptolemy trying to explain in his model by having the planets move on smaller circles that move on the bigger circles?
Ptolemy proposed the use of epicycles (small circles) within deferents (larger circles) to explain the observed retrograde motion of planets. The epicycles were used to account for the variability in a planet's speed as it moved along the deferent in his geocentric model.
Who thought that planets moved in little circles which moved in bigger circle?
Ancient astronomer Ptolemy proposed the geocentric model of the universe in the 2nd century AD. According to this model, planets moved in small circles called epicycles, which in turn moved in larger circles around the Earth. This theory was later replaced by the heliocentric model proposed by Copernicus in the 16th century.
Are planets bigger than an asteroid?
Yes, planets would be much bigger.
Who was more accurate Ptolemy or Copernicus?
Copernicus was correct in believing in the heliocentric model of the Solar System, which said the planets rotated round the sun. Ptolemy accepted the traditional geocentric view which had the Earth at the centre of the Solar System.
How many planets is bigger than earth?
Four: Jupiter, Saturn, Uranus and Neptune.
What was ptolemy trying to explain in his model by having the planets move on smaller circles that move on bigger circles?
Ptolemy is trying to explain in his model that each circle represents 1 planet's rotation and it's a scale drawing of the distance apart from each one!
What was Ptolemy trying to explain in his model by having the planets move on smaller circles that move on the bigger circles?
Ptolemy proposed the use of epicycles (small circles) within deferents (larger circles) to explain the observed retrograde motion of planets. The epicycles were used to account for the variability in a planet's speed as it moved along the deferent in his geocentric model.
What was Ptomeny trying to explain in his model by having the planets move on smaller circles that move on bigger circles?
to explain the motion of planets, especially the phenomenon of retrograde motion where planets appear to temporarily reverse their direction of motion. Ref: Andrew Liddle "An Introduction to modern Cosmology".
What was Ptolemy trying to explain in his model by having the planets move on smaller circle that move on bigger circle?
Ptolemy is trying to explain in his model that each circle represents 1 planet's rotation and it's a scale drawing of the distance apart from each one!
What was ptolemys explanation for why the planets seemed to move at different speeds?
The planets move on little circles that move on bigger circles.
Who thought that planets moved in little circles which moved in bigger circle?
Ancient astronomer Ptolemy proposed the geocentric model of the universe in the 2nd century AD. According to this model, planets moved in small circles called epicycles, which in turn moved in larger circles around the Earth. This theory was later replaced by the heliocentric model proposed by Copernicus in the 16th century.
Are the gas planets bigger or smaller than the rocky planets?
the gas planets are bigger than the rocky planets
Are planets bigger than an asteroid?
Yes, planets would be much bigger.
Who was more accurate Ptolemy or Copernicus?
Copernicus was correct in believing in the heliocentric model of the Solar System, which said the planets rotated round the sun. Ptolemy accepted the traditional geocentric view which had the Earth at the centre of the Solar System.
How big are planets?
well some planets are bigger than the earth but from the inside earth is of course bigger than all of the other planets
How many planets is bigger than earth?
Four: Jupiter, Saturn, Uranus and Neptune.
Why are some planets bigger than other?
because when god made the planets he made explosions everywhere to make planets. some explosions were bigger than others.
