Multiple Choice
A radio signal emitted from Earth would take about
A) 4 years to leave our galaxy.
B) 20,000 years to leave our galaxy.
C) 80,000 years to leave our galaxy.
D) 100,000 years to leave our galaxy.
Correct Answer:
Verified
Correct Answer:
Verified
Q91: The H-R Diagram,an important tool of astronomers,relates
Q92: The North Star has very little apparent
Q93: Compared to most stellar objects,quasars are more<br>A)distant.<br>B)energetic.<br>C)puzzling.<br>D)all
Q94: The Large Megllanic Cloud is<br>A)a bright nebula
Q95: Which is largest?<br>A)a galaxy<br>B)a local group<br>C)a Supercluster<br>D)the
Q97: All of the stars we see at
Q98: The event horizon of a black hole
Q99: Our local group is situated<br>A)within a major
Q100: Stars to the upper right of the
Q101: What is the reference that astronomers use