Top Posters
Since Sunday
r
5
m
5
h
5
r
5
t
5
B
5
P
5
s
5
m
5
c
5
c
4
4
New Topic  
staedtler staedtler
wrote...
Posts: 2716
Rep: 0 0
7 years ago
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) we can say for sure that Fomalhaut is
A)   more than 10 ly away.   C)   less than 10 ly away.
B)   less than 10 pc away.   D)   more than 10 pc away.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
Read 126 times
2 Replies
Replies
Answer verified by a subject expert
papachulopapachulo
wrote...
Top Poster
Posts: 1302
7 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

staedtler Author
wrote...
7 years ago
Person Raising Both Hands in Celebration

Correct Slight Smile
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  849 People Browsing
Related Images
  
 184
  
 74
  
 567
Your Opinion
Who will win the 2024 president election?
Votes: 7
Closes: November 4