Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 6b
This side of the tympan contains two scales. Unusual is the one that is used to determine the moon's location.

Scales


Type Range & Units Numbered Geometry Location
Sine/Cosine 0 - 60 1/60 of quadrant radius Every 4  Angle n/a
Lunar position N/A   n/a n/a
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