ASTRONOMER OF THE CITY BOLGARA OF MAS''UDI OF AL-BULGARI
In the article, on the basis of heterogeneous sources, describes the development of the city of Bulgarians of astronomical knowledge, serving not only the needs of the Muslim rites, but enriched the astronomical science in the Muslim world observations in the stationary observatories not only to the Bulgarians, but also in the Northern latitudes. One of the brightest representatives of the Bulgarian astronomy was Masudi, al-Bulgari