The Voynich Pipes

[ReneZ]

You would be a good medieval person, JKP

Does anybody understand how this system worked in practice? I can't understand how you can see the time in the stars without using a table of months + orientations of constellations.

Helmut: something like "path"?

Koen,

this method immediately tells you what is the 'sidereal time'.

To convert sidereal time to local time (for any given location) one only needs to know the day of the year.
The difference shifts by slightly less than 4 minutes per day.

It can easily be done without a sighting tube, You are not allowed to view links. Register or Login to view. .