| Date |
1224/5 (A.H. 621) |
| Maker |
Muḥammad ibn Fattūḥ
al-Khamā’irī |
| Place |
Seville |
| Material |
Brass |
| Inventory no. |
50934 |
| Acquisition |
Presented by Lewis Evans in
1924 |
The rete is of the indicator-line (simple) type. The
bases of the star pointers are either a trefoil design or
have silver bosses. There are four silver knobs for turning
the rete..The zodiac on the rete is labelled: الحمل , الثور ,
الجوزا , السرطان , الاسد , السنبلة , الميزان , العقرب , القوس
, الجدي , الدلو , الحوت
Stars
There are 0 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 |
Nut & Bolt
The rete is attached using a nut &
bolt. A small, square nut thread on to an equally small bolt.
The head of the bolt has a small pointer extending from it.
The shank of the bolt is square and fit into the square hole
on the alidade. This ensured that the pointer on the front of
the instrument was always colinear with the alidade on the
back..
