Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 1b
Latitude 52°0'
.

Almucantars

Divisions Labelled Style
Divided every 2° from 0° to 10° Labelled every 2° with   (Modern) numerals Plain line.
Divided every 2° from 12° to 90° Labelled every 10° with   (Modern) numerals Plain line.
Divided every 10° from 10° to 80° Labelled every 10° with   (Modern) numerals Dotted line.

Azimuths

Divisions Labelled Style
Divided every 5°  Labelled every 10° with   (Modern) numerals Plain line.

Circles

Type Labelled Style Notes
Equator CIRCVLVS ♈ ET ♎ (Latin in Roman Capital script) Plain line.
Tropic of Cancer TRO: ♋ (Latin in Roman Capital script) Plain line.
Tropic of Capricorn TROPICVS HIBERNVS (Latin in Roman Capital script) Plain line.

Lines

Type Labelled Description
Unequal hours 1 to 12 (None in None script) (Modern), None line style.
Horoscopic (great) houses I to XII (None in None script) (IIII), None line style.
Horizon rectus HORIZON RECTVS (Latin in Roman Capital script)
Crepuscule CREPVSCVLINA SIVE AVRORA (Latin in Roman Capital script)
Horizon obliquus HORIZON OBLIQVVS (Latin in Roman Capital script)

Inscriptions

Transcription Translation Type
Lat: 52 Latitude
ME: Cardinal point
OC: Cardinal point
OR: Cardinal point
SE: Cardinal point
MHS Home | Contact Us | ©2006 Museum of the History of Science