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: | 90 |
| (Numbering) ends at: | 0 |
| Numbered: | every 10 degrees |
| Repeats: | 4 times |
| Divided every: | 0 (Degrees of arc) |
| then every: | 0 (Degrees of arc) |
Scale located on: Limb .
Location(s) detail:
| outer: | outermost scale on the front of the limb (outer) |