Date |
1221/2 |
Maker |
Muḥammad ibn Fattūḥ
al-Khamā’irī |
Place |
Seville |
Material |
Brass |
Inventory no. |
44141 |
Acquisition |
Presented by Lewis Evans in
1924 |
The rete is of the indicator-line (simple) type. The
star pointers extend from trefoil- or bulb-shaped bases .The
zodiac on the rete is labelled: الحمل , الثور , الجوزا ,
السرطان , الاسد , السنبله , الميزان , العقرب , القوس , الجدي
, الدلو , الحوت
Scales
Range & Units |
Numbered |
Geometry |
Location |
Ecliptic |
0 - 30 Degrees of ecliptic |
Every 3 |
Ecliptic |
ecliptic |
Stars
There are 29 stars on the rete marked with hook
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 |
قلب العقرب |
Antares |
pointer damaged |
pointer damaged |
hook |
الطاير |
Altair |
pointer damaged |
pointer damaged |
hook |
كعب الفرس |
τ Pegasi |
pointer damaged |
pointer damaged |
hook |
عنق الحياة |
Unukalhai |
pointer damaged |
pointer damaged |
hook |
راس الحوا |
Rasalhague |
pointer damaged |
pointer damaged |
hook |
بتن قيطوس |
Baten Kaitos |
20.0° of Aries |
-15° |
hook |
راس الغول |
Algol |
7.0° of Taurus |
41° |
hook |
الدبران |
Aldebaran |
5.0° of Gemini |
12° |
hook |
قدم الجوزا |
Rigel |
13.0° of Gemini |
-11° |
hook |
العيوق |
Capella |
16.0° of Gemini |
50° |
hook |
منكب الجوزا |
Betelgeuse |
19.0° of Gemini |
50° |
hook |
العبور |
Sirius |
3.0° of Cancer |
-16° |
hook |
الغميصا |
Procyon |
14.0° of Cancer |
5° |
hook |
يد الدب |
Talitha Borealis |
28.0° of Cancer |
50° |
hook |
ذنب الشجاع |
|
0.0° of Leo |
7° |
hook |
عنق الشجاع |
Alphard |
16.0° of Leo |
-4° |
hook |
قلب الاسد |
Regulus |
21.0° of Leo |
18° |
hook |
رجل الدب |
Tania Australis |
24.0° of Leo |
44° |
hook |
جناح الغراب |
Gienah |
24.0° of Virgo |
-14° |
hook |
السماك الاعزل |
Spica |
17.0° of Libra |
-9° |
hook |
القايد |
Alkaid |
20.0° of Libra |
53° |
hook |
السماك رامح |
Arcturus |
27.0° of Libra |
18° |
hook |
الفكة |
Alphecca |
29.0° of Scorpio |
35° |
hook |
الواقع |
Vega |
5.0° of Capricorn |
44° |
hook |
الردف |
Deneb |
5.0° of Aquarius |
46° |
hook |
ذنب الجدي |
Deneb Algiedi |
13.0° of Aquarius |
-19° |
hook |
منكب الفرس |
Scheat |
9.0° of Pisces |
27° |
hook |
الخضيب |
Caph |
20.0° of Pisces |
56° |
hook |
ظنب قيطوس |
Deneb Kaitos |
27.0° of Pisces |
-15° |
hook |
Pin Image:
Nut & Bolt
The rete is attached using a nut &
bolt.