Nastulus | |
|---|---|
محمد بن عبد الله نسطولس | |
 Abū Rayhān Bīrūnī's description of Nasṭūlus’s astrolabe | |
| Born | fl. 10th century |
| Academic work | |
| Era | Islamic Golden Age |
| Main interests | Astronomy |
| Influenced | Al-ʻIjliyyah[1] |
Muḥammad ibn ʿAbd Allāh Nasṭūlus (Arabic: محمد بن عبد الله نسطولس; known as Nasṭūlus, but also referred to as Basṭūlus) was a 10th century astronomer. He is known for making one of the oldest surviving astrolabes, dated 927/928,[2] as well as of another partially preserved astrolabe that bears his signature, "Made by Nasṭūlus in the year 315" of hijra (925).[2][3]
Very little is known about Nasṭūlus. His full name, based on a testimony given by a contemporary astronomer, Abu Sa'id al-Sijzi, indicates that he was a Muslim, but some modern historians have suggested that his foreign last name may indicate that he was Greek or Nestorian.[2]