View Single Post
  #19  
Old 25-05-2012, 04:23 PM
Robh's Avatar
Robh (Rob)
Registered User

Robh is offline
 
Join Date: Feb 2009
Location: Blue Mountains, Australia
Posts: 1,338
Quote:
Originally Posted by Terry B View Post
Is it a similar reason that 10 Ursae Majoris now is part of the constellation Lynx?
Hi Terry,

There were many stars re-allocated by the current constellation boundaries defined by the IAU around 1930. However, in the case of the Norma Cluster, I think the name is more recent (as Robert intimated earlier as well) and the cluster was probably unknown before 1930.

As Robert stated, maybe the astronomers didn't actually check where the Norma/TrA border actually was.

Regards, Rob
Reply With Quote