Your Place in Space and Time Review

____________________- the distance between the Earth and the Sun - this is handy for comparing distances to planets within our solar system.

• Astronomical Unit

• Light Year

• Parsecs

____________________- the distance that light travels in one year (note that this is not a measure of time, it is a measure of distance).

• Astronomical Unit

• Light Year

• Parsecs

The light travel time from the Sun to the Earth is ___ minutes.

List the planets in order from the Sun

• Mars Venus Earth Mercury Jupiter Saturn Uranus Neptune
• Earth Venus Mercury Saturn Mars Jupiter Neptune Uranus
• Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
• Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto

What planet is half way between the Sun and Pluto? 

• Uranus
• Neptune
• Saturn
• Mars

The Voyager 1 and 2 space probes, which were launched in __________ , have left the boundary of the solar system at approximately 120 AUs.

What are the 2 closest stars to Earth besides the Sun?

• Proxima Centauri and Alpha Centauri

• Canopus and Algol

• Arcturus and Vega

• Sirius and Rigel

The brightness of a star as seen from earth

• Apparent magnitude

• Awesome magnitude

• Absolute magnitude

• Amazing magnitude

Brightness determined by DISTANCE from the earth

• Amazing magnitude

• Absolute magnitude

• Apparent magnitude

• Awesome magnitude

Scientist believe the center of our Galaxy has a ___________ in the middle strongly supported by the detection of __________.

• Black Hole, X-Ray Radiation

• Black Hole, Radio Radiation

• Neutron Stars, Microwave Radiation

• Black Hole, Light Radiation