Origins Of Modern Astronomy Flashcards
Golden Age of Astronomy
Aristotle, Aristarchus, Hiparchus, Eratothenes, Claudius Ptolemy
“The 🌍 is a sphere”
Aristotle
Heliocentric model
Aristarchus
Star Catalog
Hiparchus
Measured 🌍’s circumference
Eratosthenes
constructed a geocentric cosmological model
Claudius Ptolemy
Heliocentric model
Nicolaus Copernicus
Compiled the Almagest (great work)
Claudius Ptolemy
studied the heavenly bodies for 20 years to disprove Copernican theory
Tycho Brahe
Planets move in ellipses
Johannes Kepler
discovered that the orbit of Mars is not a perfect circle but is slightly elliptical
Johannes Kepler
3 laws of Planetary Motion
Johannes Kepler
Invented the telescope
Galileo Galilei
The discovery of Jupiter’s four largest satellites or Moons.
Galileo Galilei
Planets are Earth-like, not sun-like.
Galileo Galilei
Moon is also Earth-like.
Galileo Galileo
The sun had sunspots.
Galileo Galilei
3 laws of Motion
Isaac Newton
Law of Universal Gravitation
Isaac Newton
the force of gravity, combined with the tendency of a planet to remain in straight-line motion would result in a planet having an elliptical orbit
Isaac Newton
slight variances in the orbits
Perturbation
the mass of the Sun is known from Earth’s orbit, and Earth’s mass has been determined from the orbit of moon
Isaac Newton
Star patterns for Agriculture, hunting, etc
Ancient Astronomy
Evolution of Astronomy
- Naked eye
- Telescope
- Applied math
- Photography
- Digital detectors
- Computers
- Outer space
