Astrolabe Catalogue

 

Date early 18th century
Maker ‘Abd al-A’imma
Place Iṣfahān
Material Brass
Inventory no. 43739
Acquisition Purchased from R. S. Clay in 1944
There are 4 plates with latitudes ranging from 29°0' to 37°0' .

Latitude N/A

Thumbnail image of the tympan or plate - click for more information
By inspection, this tympan is engraved for something below 20° latitude. This tympan is poorly engraved. Moreover, the stereographic projection is faulty. Together, this suggests that the tympan is a later replacement (fake?).. Inscribed:
Transcription Translation Notes Type
لعرض لد For latitude 34° This tympan is in fact drawn for 24°.. Latitude
المشرق East Direction
المغرب West Direction
ساعاته يد لو Hours 14h36m Hours of daylight
More information

Latitude 32°0'

Thumbnail image of the tympan or plate - click for more information
This tympan is poorly engraved. Moreover, the stereographic projection is faulty. Together, this suggests that the tympan is a later replacement (fake?).. Inscribed:
Transcription Translation Notes Type
لعرض لب For latitude 32° Latitude
ساعاته يد ز Hours 14h07m Hours of daylight
المشرق East Direction
المغرب West Direction
More information

Latitude 29°0'

Thumbnail image of the tympan or plate - click for more information
This tympan seems to have been gilded in silver, most of which has now worn off.. Inscribed:
Transcription Translation Notes Type
لعرض كط For latitude 29° Latitude
ساعاته يج نز Hours 13h57m Hours of daylight
المشرق East Direction
المغرب West Direction
More information

Latitude N/A

Thumbnail image of the tympan or plate - click for more information
Tablet of horizons. This tympan seems to have been gilded in silver, most of which has now worn off.. This plate contains 1 scales of the following type(s): Table of Horizons More information

Latitude 30°0'

Thumbnail image of the tympan or plate - click for more information
This tympan seems to have been gilded in silver, most of which has now worn off.. Inscribed:
Transcription Translation Notes Type
لعرض ل For latitude 30° Latitude
ساعاته يج نز Hours 13h57m Hours of daylight
المشرق East Direction
المغرب West Direction
More information

Latitude 36°0'

Thumbnail image of the tympan or plate - click for more information
This tympan seems to have been gilded in silver, most of which has now worn off.. Inscribed:
Transcription Translation Notes Type
لعرض لو For latitude 36° Latitude
ساعاته يد كح Hours 14h28m Hours of daylight
المشرق East Direction
المغرب West Direction
More information

Latitude 37°0'

Thumbnail image of the tympan or plate - click for more information
This tympan seems to have been gilded in silver, most of which has now worn off.. Inscribed:
Transcription Translation Notes Type
لعرض لز For latitude 37° Latitude
ساعاته يد ل Hours 14h30m Hours of daylight
المشرق East Direction
المغرب West Direction
More information

Latitude 34°0'

Thumbnail image of the tympan or plate - click for more information
This tympan is embossed with ornate design.. Inscribed:
Transcription Translation Notes Type
لعرض لد For latitude 34° Latitude
ساعاته يد لو Hours 14h36m Hours of daylight
المشرق East Direction
المغرب West Direction
More information
MHS Home | Contact Us | ©2006 Museum of the History of Science