Multiple Choice
The star Fomalhaut has an apparent magnitude of 1.15 and an absolute magnitude of 2.0. From this information (assuming that the starlight has not been dimmed by interstellar clouds) , one can say for sure that Fomalhaut is _____.
A) brightest in blue light
B) less than 10 pc away
C) brightest in red light
D) more than 10 pc away
Correct Answer:

Verified
Correct Answer:
Verified
Q87: The Sun has an absolute magnitude of
Q88: What characterizes an A-type star?<br>A) They have
Q89: Which two fundamental parameters are MOST often
Q90: Sirius, visually the brightest star in Earth's
Q91: Two stars whose apparent magnitudes differ from
Q93: What is the ratio of the brightnesses
Q94: When observed through a set of photometric
Q95: What is spectroscopic parallax?<br>A) apparent change in
Q96: The star Arcturus is classified as K2
Q97: The Hipparcos satellite could measure stars up