Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 1a
Latitude 42°0'
Faint lines on this plate suggest that it was initially engraved upside down.

Almucantars

Divisions Labelled Style
Divided every 5° from 0° to 90° Plain line.

Azimuths

Divisions Labelled Style
Divided every 10°  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
Crepuscule
Unequal hours Numbered (Numbers in Numbers, engraved script) (Gothic), Plain line style.

Inscriptions

Transcription Translation Type
42 42° Latitude

Scales


Type Range & Units Numbered Geometry Location
Degree 0 - 360 Degrees Every 10 degrees Circular, concentric Tropic of Capricorn
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