Scales
| Type | Range & Units | Numbered | Geometry | Location |
|---|---|---|---|---|
| Ecliptic | 0 - 30 Degrees of ecliptic | Not numbered | Ecliptic | ecliptic |
| Date | 984/5 or 1003/4 (A.H. 374 or 394) |
| Maker | Aḥmad and Muḥammad |
| Place | Iṣfahān |
| Material | Brass |
| Inventory no. | 33767 |
| Acquisition | Presented by Lewis Evans in 1924 |
Stars
There are 38 stars on the rete marked with dagger 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 |
|---|---|---|---|---|
| [Illegible] | Antares | pointer damaged | -22° | dagger |
| ؟؟هه قيطس | Deneb Kaitos Shemali | 13.0° of Aries | -8° | dagger |
| الغول | Algol | 7.0° of Taurus | 41° | dagger |
| الكف الجدما | Menkar | 7.0° of Taurus | 3° | dagger |
| عين الثور | Aldebaran | 29.0° of Taurus | 14° | dagger |
| العيق | Capella | 5.0° of Gemini | 47° | dagger |
| رجل الجوزا | Rigel | 10.0° of Gemini | -8° | dagger |
| يد | Bellatrix | 12.0° of Gemini | 9° | dagger |
| رجل الجوزا | 18.0° of Gemini | -9° | dagger | |
| يد الجوزا | Betelgeuse | 19.0° of Gemini | 9° | dagger |
| [Illegible] | 1.0° of Cancer | 16° | dagger | |
| اليمانيه | Sirius | 2.0° of Cancer | -14° | dagger |
| الساميه | Procyon | 14.0° of Cancer | 9° | dagger |
| راس السراع | 18.0° of Cancer | -18° | dagger | |
| الفرد | Alphard | 8.0° of Leo | -1° | dagger |
| الطرف | 9.0° of Leo | 18° | dagger | |
| [Illegible] | Alkaid | 19.0° of Leo | 44° | dagger |
| قلب الاسد | Regulus | 19.0° of Leo | 23° | dagger |
| جناح الغراب | Gienah | 23.0° of Virgo | -12° | dagger |
| [Illegible] | 11.0° of Libra | -6° | dagger | |
| [Illegible] | 15.0° of Libra | 18° | dagger | |
| [Illegible] | 18.0° of Libra | 61° | dagger | |
| [Illegible] | Alphecca | 18.0° of Libra | 32° | dagger |
| [Illegible] | Spica | 24.0° of Libra | -9° | dagger |
| [Illegible] | Arcturus | 27.0° of Libra | 26° | dagger |
| [Illegible] | Unukalhai | 19.0° of Scorpio | pointer damaged | dagger |
| [Illegible] | Rasalhague | 16.0° of Sagittarius | pointer damaged | dagger |
| الواقع | Vega | 1.0° of Capricorn | 38° | dagger |
| نسر الطاير | Altair | 16.0° of Capricorn | 9° | dagger |
| ذنب الدلفين | Deneb Dulfim | 28.0° of Capricorn | 9° | dagger |
| الدجاجه | 29.0° of Capricorn | 23° | dagger | |
| ردف | Deneb | 2.0° of Aquarius | 44° | dagger |
| ذنب الجدي | Deneb Algiedi | 10.0° of Aquarius | -19° | dagger |
| [Illegible] | 24.0° of Aquarius | 1° | dagger | |
| منكب | Scheat | 4.0° of Pisces | 26° | dagger |
| الخضيب | Caph | 18.0° of Pisces | 54° | dagger |
| ؟؟ قيطس | Deneb Kaitos | 19.0° of Pisces | -11° | dagger |
| [Illegible] | 20.0° of Pisces | 26° | dagger |
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