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Inserting of the data concerning the room (1/4)

Initially is necessary establish the observer position from which we will observe the heavenly vault (usually the own bed).

The requested measures are the distance elapse respectively to the walls and the ceiling and the centre of the observer face (the nose), that we will call point of watching.

At this point every representation of the sky you will see on your monitor correspond to that you will see on your ceiling.

Insert, in centimeters, the distance between the point of watching and

the North wall:
the East wall:
the South wall:
the West wall:
the ceiling:

NOTE: it's necessary enable the creation of the pop-up windows because the web application need it.