Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 4a
Latitude 52°0'
Four dots are engraved into the tab.

Almucantars

Divisions Labelled Style
Divided every 3° from 0° to 90° Plain line.

Azimuths

Divisions Labelled Style
Divided every 10°  Plain line.

Circles

Type Labelled Style Notes
Equator Plain line. There are a number of construction dots around the equator
Tropic of Cancer Plain line.
Tropic of Capricorn Plain line.

Lines

Type Labelled Description
Unequal hours The even hours are numbered (Numbers in Numbers, engraved script) (Gothic), Plain line style.
Meridian line
Horizon rectus

Inscriptions

Transcription Translation Type
52 52° Latitude
MHS Home | Contact Us | ©2006 Museum of the History of Science