Astrolabe Catalogue

 

Front of astrolabe without rete or plates. Click to enlarge
Date early 18th century
Maker ‘Abd al-A’imma
Place Iṣfahān
Material Brass
Inventory no. 43739
Acquisition Purchased from R. S. Clay in 1944

Throne

The throne is of the indo-persian, engraved type . The throne is attached with a integrated base. Embossed with ornate foliate design..

Ring

The ring is of the simple, round cross-section type (i.e. simple plain ring made from a round rod or piece of metal).

Shackle

Shackle of the omega type (i.e. Ω-shaped shackle). .

Mater

The mater and limb are of one-piece construction. The tab to hold the tympans in place is located at the bottom of the instrument, 180° from the throne.. Scales on the limb:
Type Range & Units Numbered Geometry Location
Degree 0 - 360 Degrees of arc Every 5 degrees Circular, concentric None

The limb is inscribed:
Content Translation Notes Type
[on edge] [ pending ] None

Womb


The womb contains a gazetteer with coordinates for 32 cities:
City
(on instrument)
Translation
(when known)
Longitude Latitude Inhiraf Jihat
مكه Mecca 77°10 21°40 00
مدينه Medina 75°20 25°00 37°10
بغداد Baghdad 80°00 33°25 12°15
بصره Basr 84°00 30°00 36°19
شيراز Shiraz 88°00 29°36 33°38
شوشتر Shushtar 84°30 31°30 35°27
جرفادمان Gerfadman 85°30 34°30 33°40
اصفهان Iṣfahan 86°40 32°26 40°28
كشان Kashan 86°00 34°00 34°31
قم Qom 85°40 34°45 35°15
رى Rayy 86°20 34°00 36°26
قزوين Qazvin 85°00 36°00 26°34
ساوه Sawah 85°00 35°00 29°36
سمنان Semnan 88°00 36°00 36°15
دامغان Damghan 88°15 36°20 38°00
بسطام Basṭam 89°30 36°10 39°33
قنداهر Qandahar 107°40 33°00 75°05
شروان Shirwan 91°30 36°21 44°12
نيشابور Nishapur 92°30 36°21 46°25
مشهد Meshhad 92°30 37°00 45°06
هراة Herat 94°20 34°30 14°08
تبريز Tabriz 82°00 38°00 15°40
اردبيل Ardabil 82°30 38°00 17°33
؟؟؟وان ???? 89°15 38°30 16°20
شيروان Shirwan 84°30 40°50 20°09
مراغه Maragheh 82°00 37°20 16°17
كنجه Ganjah 83°00 41°20 15°49
كازران Kazerun 87°00 29°15 11°17
كرمان Kerman 92°30 29°50 62°11
استراباد Asterabad 89°35 36°50 38°48
امل Amol 88°20 36°05 34°37
تورسيش Turshiz 92°00 35°00 48°51
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