Terms
This term defines the idea of comparing an objects size and distance from a viewer to determine actual size
Angular Size
Calculated the circumference of the planet using a well and obelisk
Eratosthenes
Represents the stars around the planet (we have one in the classroom)
Celestial Sphere
Planets move ____________ when they are closer to the sun and ___________ when they are farther away.
Faster
Slower
Isaac Newton invented which math?
Calculus
This term is used to describe the length it takes an object to complete one orbit around another celestial object
Orbital period
Danish astronomer known for making tools more precise and larger.
Tycho Brahe
A type of celestial sphere that was invented long ago but should Earth at the center
Armillary sphere
Orbit are actually in what shape?
Ellipses
Who invented the telescope
Johannes Lippershey
Exploding star
Supernova
Found that Mars had an elliptical orbit
Johannes Kepler
Ancient ancient astronomers based their observations off of...
Naked eye measurements
Phases were found on what planet?
Venus
Planets rise in the ___________ and set in the _____________
East
West
Planet moves westward in respect to the stars
Invented the telescope
Johannes Lippershey
Name BOTH type of lens that are found in a telescope
Convex and concave
Blurs and blobs turned out to be rings on what planet?
Saturn
Biggest supporter of a Geocentric model
Catholic Church
Ptolemy thought that the planets orbits had tiny circles as well and these tiny circles were called ...
Epicycles
Came up with the Law of Gravity
Isaac Newton
Name both astronomical instruments that Islamic culture is known for
Astrolabe and Sectant
4 moons of Jupiter were discovered and they were named what term?
Satelitte
Free points if everyone in your group is in full uniform otherwise every other group gets 100 points for each group member in full uniform.
Stay in Uniform