5 / 5 pts
The geocentric model explained the retrograde motion of the planets by
making the planet move in a small circle, cetered upon a larger circle
by making the planet move backwards in its orbit
by making the Earth move backwards in its o
Project #3: Charting Sunspots
result of intense magnetic "activity" on the
spots are darker than the rest of the solar
Project #1: How Massive Is This New Planet?
On July 29, 2005, astronomers Mike Brown (Caltech), Chad Trujillo (Gemini
Observatory), and David Rabinowitz (Yale) announced the discovery of the tenth
planet in our solar system. This was the first time an obj
ASTRONOMY EXAM 2 PRACTICE
1. Which are the Galilean moons?
Jupiters largest moons are known as the Galileans, all of which were discovered by
Galileo Galilei and named in his honor. They include Io, Europa, Ganymede, and
Callisto, and are the Solar System
The Last Total Solar Eclipse
Adapted from Space Math http:/spacemath.gsfc.nasa.gov
Image courtesy Fred Espenak
Total solar eclipses happen when the Moon gets in between the Earth and the
Sun and hide
0 / 5 pts
Which of the following statements is true?
The Northern Hemisphere receives the most direct sunlight on the summer solstice.
Both the Northern and Southern hemispheres receive the same amount of sunlight on the
Both the Nor