Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 2a
Latitude 40°0'
Although the plate is marked with 42°, inspection suggests that it is in fact engraved for 40°.

Almucantars

Divisions Labelled Style
Divided every 3° from 0° to 90° Labelled every 3° with   (Modern) numerals Plain line.

Circles

Type Labelled Style Notes
Equator Plain line.
Tropic of Cancer Plain line.
Tropic of Capricorn Plain line.

Lines

Type Labelled Description
Meridian line
Horizon rectus
Horizon obliquus
Unequal hours Numbered (Numbers in Numbers, stamped script) (Modern), Plain line style.
Horoscopic (great) houses Numbered (Numbers in Numbers, stamped script) (Modern), Hatched line style.

Inscriptions

Transcription Translation Type
42 42° Latitude
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