Astrolabe Catalogue


Small image of astrolabe rete separated from astrolabe. Click to enlarge.
Date 1713/4
Maker ‘Abdī
Place Turkey
Material Brass
Inventory no. 39955
Acquisition Presented by J. A. Billmeir in 1957
The rete is of the y-shaped (modified) type. Knobs at each end of the east-west strap..The zodiac on the rete is labelled: الڂمل , الثور , الجوزا , السرطان , الاسد , السنبله , الميزان , العقرب , القوس , الجدي , الدلو , الحوت


There are 22 stars on the rete marked with flamant 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
بطن قيطس Baten Kaitos 24.0° of Aries -15° flamant
عين الثور Aldebaran 6.0° of Gemini 17° flamant
رجل الجوزا Rigel 17.0° of Gemini -7° flamant
عيوق Capella 17.0° of Gemini 46° flamant
منكب الجوزا Betelgeuse 26.0° of Gemini flamant
شعراى اليمانيه Sirius 8.0° of Cancer -16° flamant
شعراى الشامي Procyon 19.0° of Cancer flamant
يد الدب Talitha Borealis 7.0° of Leo 49° flamant
فرد الشجاع Alphard 16.0° of Leo -5° flamant
قلب الاسد Regulus 27.0° of Leo 14° flamant
رجل الدب Tania Australis 28.0° of Leo 44° flamant
جناح الغراب Gienah 6.0° of Libra -15° flamant
سماك الاعزل Spica 20.0° of Libra -9° flamant
سماك رامح Arcturus 5.0° of Scorpio 20° flamant
عنق الحيه Unukalhai 25.0° of Scorpio flamant
راس الجوزا Rasalhague 21.0° of Sagittarius 12° flamant
نسر الطاير Altair 22.0° of Capricorn flamant
ذنب الدلفين Deneb Dulfim 1.0° of Aquarius flamant
الردف Deneb 7.0° of Aquarius 41° flamant
ذنب الجدى Deneb Algiedi 19.0° of Aquarius -18° flamant
منكب الفرس Scheat 12.0° of Pisces 27° flamant
ذنب القيطس Deneb Kaitos 25.0° of Pisces -10° flamant

Nut & Bolt

The rete is attached using a nut & bolt. A recent replacement, which is far too long for this instrument..
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