A random distribution of RA&Dec

A random distribution of RA&Dec

We are searching data for your request:

Forums and discussions:
Manuals and reference books:
Data from registers:
Wait the end of the search in all databases.
Upon completion, a link will appear to access the found materials.

How to make random positions in Equatorial coordinate system?

If I divide Dec between -90 and 90 evenly, the space distribution is not random.

Well, your problem is that you have a sphere. To compensate for the polar declination skew, you just calculate $$sin^{-1}(mathtt{rand})$$ Where $mathtt{rand}$ is a number in an evenly divided -1 to 1 range. Alternatively, you can use another trigonometric function based on what you have available, but you get the idea.

RA can obviously be divided evenly.


  1. Zulukinos

    Fly away!

  2. Barrani

    Thanks! Cool thing !!!

  3. Samukora

    The very good communication is remarkable

  4. Kerry

    it is precisely

  5. Leveret

    The theme is interesting, I will take part in discussion. Together we can come to a right answer. I am assured.

Write a message