If you sight Polaris with an astrolabe and determine its altitude is 20° above the horizon, then what does this tell you about your position on the Earth?

nothing--you must know your location from a map
you must be 20° from the north pole
you must be 20° above (north) the equator
you must be 20° east or west of true north

Question

If you sight Polaris with an astrolabe and determine its altitude is 20° above the horizon, then what does this tell you about your position on the Earth?

nothing--you must know your location from a map
you must be 20° from the north pole
you must be 20° above (north) the equator
you must be 20° east or west of true north

anonymous · Answer

Well, we need to see the map sky on that time when we see Polaris.

anonymous · Answer

I can show you the Polaris location, depends the time :)

anonymous · Answer

And this is seems have to move on Physics section :)