Astrolabe Catalogue

 

Image of the tympan or plate - click for larger version
Tympan 7a
Latitude 66°0'
Table of ecliptic coordinates.

Almucantars

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

Azimuths

Divisions Labelled Style
Divided every 6°  Labelled every 6° with   (Abdjad) numerals Plain line.

Circles

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

Lines

Type Labelled Description
Meridian line
Horizon rectus
Unequal hours Numbered (Numbers in Numbers, engraved script) (Abdjad), Plain line style.
Equal hours from sunset Numbered (Numbers in Numbers, engraved script) (Abdjad), Dotted line style.

Scales


Type Range & Units Numbered Geometry Location
Zodiacal signs 0 - 30 Degrees of ecliptic Every 6 degrees Ecliptic n/a
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