× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
New Topic  
ppk ppk
wrote...
Valued Member
On Hiatus
Posts: 3561
12 years ago
What is the importance of Cepheid variables in astronomy?
Read 767 times
1 Reply

Related Topics

Replies
wrote...
Valued Member
11 years ago
Cepheid variables have a period-luminosity relationship that allows us to determine their luminosity from measuring their periodic variations in brightness. Comparing the luminosity with the apparent brightness then gives us the distance to the star. In this way, we can determine distances to not just Cepheid stars but the clusters and even galaxies that they are associated with.
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1252 People Browsing
Related Images
  
 183
  
 314
  
 200
Your Opinion
Who will win the 2024 president election?
Votes: 3
Closes: November 4