Summarize the advance of the Greek geocentric model through Ptolemy. Just how did the Ptolemaic version account for obvious retrograde motion?
The Ptolemiac version was able to describe retrograde activity by having actually the planets relocate on smaller sized circles attached come the bigger circles on which lock went about Earth.

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You space an astronomer on world Tirth, i beg your pardon orbits a far-off star. It has recently been embraced that Tirth is spherical in shape, though no one knows that size. One day, you find out that top top the equinox your sunlight is directly overhead in the city that Tyene, situated 400 kilometers due north of you. On the equinox, girlfriend go external in Alectown and observe that the altitude of your sunlight is 87 ∘. What is the circumference of Tirth?
Which of the following was no a major advantage the Copernicus"s Sun-centered model over the Ptolemaic model?
Match the following names and the significant roles play in overturning the old belief in an Earth-centered universe.
Copernicus developed a model in i m sorry planets move around the sunlight along perfect circular orbits.Tycho listed a large amount of data from huge observations and also suggested model in i m sorry the sunlight orbits earth while all various other planets orbit the Sun.Kepler explained the legislations of planetary movement for the heliocentric model, follow to which planets move around the sunlight along elliptical orbits.Galileo answered the ancient objections to the heliocentric model, arisen an magnified telescope, and detailed evidence in donate of the heliocentric model.
The dwarf planet Eris orbits the sunlight every 557 years. What its median distance (semimajor axis) indigenous the Sun?
The dwarf world Eris orbits the sun every 557 years. How does its average distance compare to the of Pluto?
making observations and conducting experiments that dispelled clinical objections come the Sun-centered model.
When i looked into the dark lanes of the Milky way with mine binoculars, I observed what must have actually been a cluster of far-off galaxies.

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This explain does no make sense, due to the fact that we can not see through the tape of light we call the Milky way to outside galaxies; the dark fissure is gas and dust blocking our view.
When Einstein"s theory of heaviness (general relativity) obtained acceptance, that demonstrated the Newton"s theory had been
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