How can we help?

You can also find more resources in our Help Center.

5 terms

Formation of the Solar System

Chapter 28 Section 28.1
STUDY
PLAY
Planetesimals
objects hundreds of kilometers in diameter. Colliding particles in the early solar system.
Retrograde Motion
The apparant backward movement of a planet
Ellipse
Oval Shape that is centered on two points instead of a single point as in a circle
Astronomical Unit
a Measurement from a planet to the sun
Eccentricity
The ratio of the distance between the foci to the length of the major axis