Scales
| Type | Range & Units | Numbered | Geometry | Location |
|---|---|---|---|---|
| Ecliptic | 0 - 30 Degrees of ecliptic | Not numbered | Ecliptic | ecliptic |
| Date | 1728/9 (A.H. 1141) |
| Maker | Muḥammad ibn Aḥmad al-Baṭṭuṭī |
| Place | North Africa |
| Material | Brass |
| Inventory no. | 52713 |
| Acquisition | Presented by Lewis Evans in 1924 |
Stars
There are 25 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 |
|---|---|---|---|---|
| بطن قيطوس | Baten Kaitos | 18.0° of Aries | -13° | hook |
| راس الغول | Algol | 18.0° of Taurus | 42° | hook |
| الذبران | Aldebaran | 8.0° of Gemini | 16° | hook |
| قدم الجوزا | Rigel | 10.0° of Gemini | -7° | hook |
| عيوق | Capella | 14.0° of Gemini | 42° | hook |
| منكب الجوزا | Betelgeuse | 27.0° of Gemini | 6° | hook |
| العبور | Sirius | 8.0° of Cancer | -17° | hook |
| الغميصا | Procyon | 21.0° of Cancer | 5° | hook |
| يد الدب | Talitha Borealis | 7.0° of Leo | 48° | hook |
| رجل الدب | Tania Australis | 24.0° of Leo | 39° | hook |
| الغرب | Gienah | 15.0° of Virgo | -13° | hook |
| الاعزل | Spica | 18.0° of Libra | -7° | hook |
| الرامح | Arcturus | 4.0° of Scorpio | 19° | hook |
| عنق الحيه | Unukalhai | 22.0° of Scorpio | 18° | hook |
| فكه | Alphecca | 25.0° of Scorpio | 27° | hook |
| قلب العقرب | Antares | 8.0° of Sagittarius | -24° | hook |
| راس الحوا | Rasalhague | 22.0° of Sagittarius | 9° | hook |
| [no name] | 28.0° of Sagittarius | 2° | hook | |
| واقع | Vega | 2.0° of Capricorn | 40° | hook |
| الطاير | Altair | 22.0° of Capricorn | 7° | hook |
| دبن الجدى | Deneb Algiedi | 4.0° of Aquarius | -20° | hook |
| الدلفين | Deneb Dulfim | 7.0° of Aquarius | 24° | hook |
| ردف | Deneb | 8.0° of Aquarius | 45° | hook |
| دنب قيطوس | Deneb Kaitos | 6.0° of Pisces | -13° | hook |
| منكب الفرص | Scheat | 14.0° of Pisces | 27° | hook |
Horse Image:
