Refine by:
-
▾ Subject
- instrument(s) (25)
- Moon (12)
- Astrolabe (11)
- Armillary Sphere (9)
- Joannes (9)
- Ptolemy (9)
- Sacrobosco (9)
- Sun (9)
- deferent (8)
- eclipse (8)
- orbs (7)
- eccentric (6)
- horizon (6)
- sundial (6)
- Elements (5)
- Quadrant (5)
- ecliptic (5)
- epicycle (5)
- globe (5)
- terrestrial (5)
- the four (5)
- Earth (4)
- apogee (4)
- axis (4)
- equant (4)
- equator (4)
- gnomon (4)
- measurement (4)
- perspective (4)
- shadow (4)