Library › Severus Sebokht

Treatise on the Astrolabe; On the Constellations

Written before 660, and 660, perhaps in Qenneshre (east bank of the Euphrates opposite Jarabulus, Syria). The date is the usual view of scholars; some doubt it.

A guide to the parts and uses of the astrolabe, with part of his work on the constellations.

Treatise · first written in Syriac

Not yet on the site. An English translation of this work exists, but we are not yet sure that it is in the public domain, or its text is not yet made ready. So it is not shown.

How we know the date and place

Date written probable

GEDSH, "Severos Sebokht"; F. Nau, Journal asiatique 1899 and 1910 (the introductions to the Syriac texts)
The astrolabe treatise is before 660. On the Constellations is dated 660.

Place written not sure

GEDSH, "Severos Sebokht"; F. Nau, Journal asiatique 1899 and 1910 (the introductions to the Syriac texts)
The point is approximate.