# Phyics - Astronomy

You are standing at a latitude of 35 degrees South. Star x is currently at an azimuth of 45 degrees and an altitude of 50 degrees. What is the azimuth and altitude coordinates of Star X 3 hours later?

I don't know how to do this. If anyone knows how to calculate this please let me know (in detail). Not "just" looking for answer here, need to know how to get to it too.

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1. This is a mini course in coordinate systems and conversion. Hour angle her is 15*3 degrees. Declination is 35

This is not easy for a beginner. If you look, there are computer applets for this on the internet.

http://en.wikipedia.org/wiki/Celestial_coordinate_system#Equatorial_to_horizontal_coordinates

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