appendix 5.2. horizon
The Horizon System
The three consisting elements of this system are:
1. The horizon plane on which we are standing in the point of observation,
2. the axis zentih-nadir which can be considered as an elongation of our own spinal cord,
3. the meridian, de time-circle of the actual geografical latitude, projecting the zenith on the horizon in the southpoint.
fig 5.2 the Horizon System
Any observation point will render the same overall picture, even though it is being established at a different place every time.
That's why the Horizon System is sometimes called the individual, or the local sphere.
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