The Copernican Revolution. Birth of Modern Science Foundations Unit: Part B. Introduction. Living in the Space Age Earth, one planet among many Orbits the sun, without (serious) question Vs. the Alternative Earth was special the center of all things. Introduction.
Birth of Modern Science
Foundations Unit: Part B
into view each
more than half of the
Illumination is visible.
disk is blocked by the
retrograde and variable
to fully explain Sun, Moon,
and 5 planets.
seems to add to the
Prague in 1600
Prior, spends the next 29 years
1. A planet’s orbital path is elliptical, with the sun at One Focus.
Semi-Major Axis- Half of the
Eccentricity- distance between
2. A planet sweeps out equal area in equal time.
Moves fastest at the closest point
Moves slowest at the furthest point
3. The square of the orbital period proportional the cube of the semi-major axis.
P- Period in Earth years
a- Semi-Major Axis in “astronomical units”
1 A.U. = Earth’s SMA,
average Earth-Sun distance