Top Posters
Since Sunday
Home Q & A Board Science-Related Homework Help Physics
New Topic  
doit_the_clown doit_the_clown
wrote...
Go to Answer
Posts: 1408
Rep: 0 0
7 years ago
The method used by Hubble to determine the distance to the Andromeda Galaxy (M31), thereby establishing the concept of separate and individual galaxies throughout the universe, was the
A)   observation of Cepheid variable stars.
B)   measurement of the redshift of the whole galaxy.
C)   measurement of stellar parallax, or apparent motion, of stars because of the Earth's orbital motion.
D)   observation of the brightnesses of novas.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
Read 109 times
1 Reply
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
Replies
Answer verified by a subject expert
papachulopapachulo
wrote...
#1
Top Poster
Posts: 1302
Rep: 29 0
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

doit_the_clown Author
wrote...

7 years ago
This calls for a celebration Person Raising Both Hands in Celebration
aznzergs
wrote...

Yesterday
Thanks for your help!!
momochiime
wrote...

2 hours ago
Good timing, thanks!
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1297 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1332
  
 760
  
 4787
Your Opinion
What's your favorite math subject?
Votes: 293
Previous poll results: Who's your favorite biologist?