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CBSE Class 11-science Answered

What is parallex method? Can u give me some examples and questions based on it !!
Asked by Tanya | 18 May, 2013, 11:09: AM
answered-by-expert Expert Answer
Parallax method is a method of measuring distances between objects. And in astronomy, the parallax method is a means of measuring the distance between our solar system and a star up to 1600 light years away. 
 
Parallax formula: d = 1/p 
 Where:
 p = parallax angle in arcseconds
d = distance in "Parsecs"
 
Example - 
  1. The star alpha Centauri has a parallax of p=0.742-arcsec:

     

  2. A star is measured to have a parallax of p=0.02-arcsec:

Answered by | 21 May, 2013, 05:18: AM

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