1. Sep 23, 2005 #1

   ps2983

   

   I aim trying to do a problem where I have 2 Equatorial Coordinates, and I need to find the angular distance in between this two points. Thanks in advance.

    

   ps2983, Sep 23, 2005
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3. Sep 23, 2005 #2

   lightgrav

   

   Homework Helper

   Do you mean RA and dec?
   
   If the stars are close to one another you can use Pythagoras.
   declination is already in actual degrees;
   Right Ascension must be converted from hours to degrees,
   (15 deg/hr) cos(dec) , to compensate for meeting at the pole.
   
   If the stars are far apart, you'll have to make a great circle
   that passes through them both.

    

   lightgrav, Sep 23, 2005

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