Astrolabe Catalogue


Small image of astrolabe rete separated from astrolabe. Click to enlarge.
Date ca. 1650
Maker Muḥammad Mahdī
Place Persia
Material Brass
Inventory no. 41763
Acquisition Presented by J. A. Billmeir in 1957
The rete is of the foliate (single knob) type. As is common, there are various construction marks on the back of the rete..The zodiac on the rete is labelled: حمل , الثور , جوزا , سرطان , اسد , سنبله , ميزان , عقرب , قوس , جدي , دلو , حوت


There are 34 stars on the rete marked with foliate pointers. Unless otherwise indicated the star name, mediation and declination are as marked/measured on the rete.
Click on the star name or modern star name to search for other astrolabes with the same star.
Star name
(on instrument)
Modern star
(if known)
Mediation Declination Pointer
ذنب قيطس Deneb Kaitos Shemali 1.0° of Aries -10° foliate
ذنب جنوبي Deneb Kaitos 8.0° of Aries -18° foliate
[غول [فرمق Algol 26.0° of Aries 41° foliate
؟؟؟ قيطس 10.0° of Taurus -14° foliate
فم القيطس Kaffaljidhm 16.0° of Taurus 0 foliate
مشافه النهر Zaurac 28.0° of Taurus -14° foliate
عين الثور Aldebaran 4.0° of Gemini 14° foliate
رجل اليسرى Rigel 16.0° of Gemini -7° foliate
يد اليسرى Bellatrix 19.0° of Gemini foliate
رجل 25.0° of Gemini -8° foliate
يد ال؟؟؟ 0.0° of Cancer -1° foliate
شعرى يمانيه Sirius 7.0° of Cancer -12° foliate
شعرى شاميه Procyon 18.0° of Cancer foliate
يد الدب Talitha Borealis 8.0° of Leo 51° foliate
فرد الشجاع Alphard 13.0° of Leo -7° foliate
قلب الاسد Regulus 25.0° of Leo 14° foliate
قاعد الباطيه Alkes 8.0° of Virgo -14° foliate
جناح الغراب Gienah 0.0° of Libra -14° foliate
سماك اعزل Spica 19.0° of Libra -8° foliate
قايد Alkaid 23.0° of Libra 50° foliate
سماك رمح Arcturus 29.0° of Libra 22° foliate
نير فكه Alphecca 20.0° of Scorpio 27° foliate
عنق الحيه Unukalhai 24.0° of Scorpio 10° foliate
قلب العقرب Antares 5.0° of Sagittarius -23° foliate
راس الحواء Rasalhague 20.0° of Sagittarius 13° foliate
واقع Vega 7.0° of Capricorn 40° foliate
منقار الدجاجه Albireo 16.0° of Capricorn 29° foliate
نسر طاير Altair 22.0° of Capricorn 10° foliate
ذنب 13.0° of Aquarius 31° foliate
فم الفرس Enif 20.0° of Aquarius foliate
ذنب الجدي Deneb Algiedi 22.0° of Aquarius -12° foliate
منكب الفرس Scheat 10.0° of Pisces 25° foliate
كف الخضيب Caph 24.0° of Pisces 52° foliate
سرة الفرس Alpheratz 26.0° of Pisces 27° foliate

Horse Image:

astrolabe part (photo)

Pin & Horse

The rete is attached using a pin & horse. The head of the pin is decorated with a floral pattern. In addition to the horse, there is a small spacer..
MHS Home | Contact Us | ©2006 Museum of the History of Science