== Contradiction Tag == 

 Someone place a contradiction tag in the article with regards to the absolute magnitude in the right-hand box.  This tag is now in the backlog for the Category:Self-contradictory articles.  Since this article is semi-protected, would someone who has access, please review the information and/or contradiction and either fix and remove the tag, or if no contradiction exists, please remove the tag so the backlog can be cleared.  Thanks much!