Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 3a
Latitude 54°0'
This side of the plate was clearly exposed when the instrument was discolored. It does not, however, appear that the rete was on top of the plate. Moreover, the inside of the hole is likewise blackened, suggesting that the pin too was missing.

Almucantars

Divisions Labelled Style
Divided every 2° from 0° to 90° Labelled every 10° with   (Modern) numerals Plain line.

Azimuths

Divisions Labelled Style
Divided every 10°  Plain line.

Circles

Type Labelled Style Notes
Equator ARIES LIBRA (Latin in Square capitals script) Plain line.
Tropic of Cancer CANCER (Latin in Square capitals script) Plain line.
Tropic of Capricorn CAPRICORNVS (Latin in Square capitals script) Plain line.

Lines

Type Labelled Description
Meridian line
Horizon rectus
Crepuscule LINEA AVRORE (Latin in Square capitals script)
Unequal hours Numbered (Numbers in Numbers, stamped script) (Modern), Plain line style.
Horoscopic (great) houses Numbered (Numbers in Numbers, stamped script) (Modern), Plain line style.

Inscriptions

Transcription Translation Type
LATI, LIIII Latitude 54° Latitude
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