Match the vocab to the definitions
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
retrograde motion | arrow_right_alt | slow rotation of the axis of a planet around another axis |
precession | arrow_right_alt | how the position of an object changes with respect to its background when seen from different positions |
epicycle | arrow_right_alt | the idea that the earth is the center of the solar system |
geocentrism | arrow_right_alt | how planets seem to move backwards in their orbits |
parallax | arrow_right_alt | a small circular orbit whose center moves around a larger circular orbit |
match vocabulary to definition
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
semi-major axis | arrow_right_alt | a regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points (the foci) is constant |
ellipse | arrow_right_alt | finding the angle between the line of site from one side of an object to another |
period | arrow_right_alt | the distance from the center of an ellipse to furthest point |
angular size | arrow_right_alt | the average distance from the earth to the sun |
astronomical unit | arrow_right_alt | the time interval of a repeating cycle |
In the equation
what do p and a stand for?
hold your hand at arm's length away from your face. look with both eyes, and then alternate looking at your hand with just your right eye and just your left eye. The difference between what you see with just your left eye and just your right eye is an example of