Multiple Choice
The bright star named Rigel has a luminosity of 
and a temperature of 11,000 K.What is its radius? Note that the temperature of the Sun is 5,800 K.
Definitions:
Related Questions
Q4: A star with the same luminosity as
Q13: B stars are cooler than M stars.
Q14: Why is the space station not torn
Q22: Suppose we discover a comet whose orbit
Q25: Give examples of a C-type asteroid and
Q30: What is unique about Venus' rotation?<br>A) Venus
Q31: If a collapsing interstellar cloud formed only
Q37: If a Seyfert galaxy's nucleus varies in
Q40: The Cassini Division in Saturn's rings is
Q65: Meteorites contain clues to all of the