Astrolabe Catalogue

Altitude

Type: Altitude
Style: 90° - 0° - 90° - 0° running clockwise from the 90° point (i.e. the throne)
Geometry: Circular, concentric
Unit of measurement: Degrees of arc
(Numbering) starts at: 0
(Numbering) ends at: 90
Numbered: Every 5
Repeats: 4 times
Divided every: 5 (Degrees of arc)
then every: 1 (Degrees of arc)

Scale located on: Tympan, Womb or Back .

Location(s) detail:

1-4: The entire outer circle on the back of an astrolabe. (1-4)
MHS Home | Contact Us | ©2006 Museum of the History of Science