20070309, 16:38  #1 
Bronze Medalist
Jan 2004
Mumbai,India
100000000100_{2} Posts 
Rule for all galaxies.

20070319, 15:14  #2 
"Lucan"
Dec 2006
England
2×3×13×83 Posts 
How does one estimate the mass of a galaxy other than its
speed of rotation? c.f. mass of the Sun? David 
20070320, 05:21  #3 
Mar 2003
New Zealand
13·89 Posts 

20070320, 06:02  #4 
Sep 2002
11×71 Posts 

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
A great universal divisibility rule  JM Montolio A  Miscellaneous Math  3  20180227 16:11 
M81 group of galaxies  xilman  Astronomy  1  20180131 06:02 
Grammar rulebreaking ftw  jasong  Lounge  71  20131015 03:39 
Thumb rule for runtime prediction  yoyo  YAFU  3  20120712 16:32 
Rule for ECM curve and Factor?  roger  Factoring  1  20070719 07:07 