Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
Home Q & A Board Science-Related Homework Help Physics
New Topic  
barry barry
wrote...
Go to Answer
Posts: 11630
Rep: 151 1
10 years ago
Explain what a standard candle is and how it could be used to determine a galaxy's distance.
Read 407 times
2 Replies
Replies
wrote...
#1
10 years ago
A standard candle is an object with a well known luminosity, such as a Type I supernova. If we see a standard candle in a distance galaxy, we can measure it's apparent brightness and use the inverse square law to determine its distance.
Would you know my name, if I saw you in heaven?

Eric Clapton
Answer accepted by topic starter
barry Authorbarry
wrote...
#2
Top Poster
Posts: 11630
Rep: 151 1
10 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  963 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1063
  
 269
  
 319
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 292
Previous poll results: Should Ph.D.'s be addressed as doctors?