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  Topic: Uncommonly Dense: The BlogCzar Years. Er, Months., Record of all the bans and threats at UD< Next Oldest | Next Newest >  
Arden Chatfield



Posts: 6657
Joined: Jan. 2006

(Permalink) Posted: May 01 2008,16:33   

I see Uthan's Bad Attitude is on ample display here:

 
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44
Uthan Rose
05/01/2008
1:54 pm
Sal,

 
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To cut to the chase, our best instruments can only measure out to 400 light-years using triangulation. Anything beyond that is a guess.


This is interesting. According to Wikipedia the distance to SN1987A has been measured by triangulation. The figure obtained is 168,000 light years.

 
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The three bright rings around SN 1987A are material from the stellar wind of the progenitor. These rings were ionized by the ultraviolet flash from the supernova explosion, and consequently began emitting in various emission lines. These rings did not “turn on” until several months after the supernova, and the turn-on process can be very accurately studied through spectroscopy. The rings are large enough for their angular size to be measured accurately: the inner ring is 0.808 arcseconds in radius. Using the distance light must have traveled to light up the inner ring as the base of a right angle triangle, and the angular size as seen from the Earth for the local angle, one can use basic trigonometry to calculate the distance to SN1987A, which is about 168,000 light-years


Will you be giving up your YEC leanings now as this data appears to directly disconfirm your theory that the cosmos can be young?


Not being an uneducated tard, he just didn't 'fit in'.

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"Rich is just mad because he thought all titties had fur on them until last week when a shorn transvestite ruined his childhood dreams by jumping out of a spider man cake and man boobing him in the face lips." - Erasmus

  
  829 replies since July 29 2007,19:21 < Next Oldest | Next Newest >  

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