Shams al-Munajjim Muhammad ibn Ali al-Wabkanawi was a 14th century Persian astronomer. He is the author of a zij, the '. From his name it is known he originated from WÃÂbkana, Bukhara, but little else is known of his life. His zij is extant in four manuscripts. His book is written in Persian, even though its title is in Arabic. Another extant book by him, KitÃÂb-i maÿrifat-i usá¹ÂurlÃÂb-i shamÃÂlë is also written in Persian.