GENERAL KNOWLEDGE

Detailed explanation-1: -The Almagest /ˈælmədʒɛst/ is a 2nd-century Greek-language mathematical and astronomical treatise on the apparent motions of the stars and planetary paths, written by Claudius Ptolemy ( c. AD 100 – c. 170).

Detailed explanation-2: -Astronomy was the subject to which Ptolemy devoted the most time and effort; about half of all the works that survived deal with astronomical matters, and even others such as the Geography and the Tetrabiblos have significant references to astronomy.

Detailed explanation-3: -At the foundation of Ptolemy’s complex philosophical system is his ethics. The explicit motivation for his study of the theoretical sciences is his objective to transform his soul into a condition that resembles the divine, mathematical objects of the heavens, the movements and configurations of the stars.