Top Posters
Since Sunday
c
5
j
5
a
5
L
5
f
5
j
5
D
4
k
4
y
4
t
4
h
4
l
4
New Topic  
staedtler staedtler
wrote...
Posts: 2716
Rep: 0 0
7 years ago
The Crab Nebula (Chapter 13, Comins and Kaufmann, Discovering the Universe, 7th Ed.) is the result of a supernova explosion of a star that occurred at a distance of about 1.84 kpc from the Earth.  If people first saw the explosion in the year 1054 A.D., when did the explosion actually occur?
A)   About 1048 A.D.   C)   1054 A.D., of course
B)   786 B.C.   D)   about 4946 B.C.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
Authors:
Read 101 times
2 Replies
Replies
Answer verified by a subject expert
discovererdiscoverer
wrote...
Top Poster
Posts: 1374
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
On behalf of my study group and I, thank you
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  754 People Browsing
 108 Signed Up Today
Related Images
  
 934
  
 745
  
 80
Your Opinion
Do you believe in global warming?
Votes: 422