How do extrasolar planets compare with planets in our solar system?
Most extrasolar planets are jovian planets that are larger than Jupiter. They also have different orbital characteristics than in our solar system
How do we detect planets around other stars?
Directly and indirectly
What is a Hot Jupiter?
Has a Jupiter-like mass but a much higher surface temperature
Do we need to modify our theory of solar system formation?
No, more than a decade of re-examination haven't discovered any flaws in basic theory
Define the frost line
The minimum distance at which is cold enough for ice to condense.
Do extrasolar systems have a frost line?
Yes
On which side of the frost line is Jupiter?
In between Jupiter and Mars' orbits
On which side of the frost line is Earth?
Earth lies less than 1/4 of the distance to the frost line
What is a meteorite?
A mass of stone, rock, or metal from outer space
What hit Russia last Friday, February 15, 2013?
A meteorite
No comments:
Post a Comment