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Converting 2D angles to solid angles

 
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Mszazynski
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Joined: 26 Dec 2017
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PostPosted: Fri Dec 29, 2017 5:40 pm    Post subject: Converting 2D angles to solid angles Reply with quote

If I know the beamwidth of my main beam is 2 degrees in the azimuthal and 2 degrees in elevation, how can I determine what solid angle this would create? This article essentially says that the number of steradians in your solid angle would be equal to:

(Max_Azimuth-Min_Azimuth)*[sin(Max_Elevation)-Sin(Min_Elevation)]

https://math.stackexchange.com/questions/1243540/how-to-calculate-the-solid-angle-of-a-spherical-rectangle-from-astronomical-angl

Would you say this is accurate? Is there a better way?
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