Top Posters
Since Sunday
A
6
j
6
c
5
m
5
C
5
d
5
s
5
n
4
i
4
d
4
d
4
J
4
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
What is the difference between an optical double star and a visual binary star?
A)   An optical double is an illusion—the stars are at vast distances from each other and are not actually orbiting each other—whereas in a visual binary, the stars are actually orbiting each other.
B)   There is no difference—they are two names for the same thing.
C)   The stars in an optical double star are actually orbiting each other, whereas a visual binary is an illusion—the stars are at vast distances from each other and are not actually orbiting each other.
D)   Optical double stars can be seen as separate stars only through a telescope, whereas visual binaries can be seen with the unaided eye (e.g., the star Mizar in the Big Dipper's handle).
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
Read 121 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
Correct Slight Smile TY
Smair87
wrote...

Yesterday
You make an excellent tutor!
spaghetti
wrote...

2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1307 People Browsing
 125 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 78
  
 914
  
 83
Your Opinion
Who will win the 2024 president election?
Votes: 8
Closes: November 4
Previous poll results: Which 'study break' activity do you find most distracting?