1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Angular Separation Between Two Stars

  1. Sep 23, 2005 #1
    :confused: 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. :confused:
     
  2. jcsd
  3. Sep 23, 2005 #2

    lightgrav

    User Avatar
    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.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook




Loading...
Similar Threads for Angular Separation Between Date
Finding the angular spread of a diffraction minima? Mar 13, 2017
Smallest Angular Separation Nov 12, 2015
Angular separation between moons Apr 21, 2015
Angular separation Nov 18, 2011
Angular separation between two wavelengths May 21, 2010