Bharatiya Jyotihshastra (History of Indian Astronomy), translated by R. V. Vaidya v2.c12.s2.t90.4

v2.c12.s2.t90.4

NṚSIMHA—Rāma, brother of Gaṇeśa Daivajñya, author of Grahalāghava, had a son, named Nṛsimha, (page 139). Rāma may have been a younger brother of Gaṇeśa Daivajñya. Sudhākara writes that this Nṛsimha compiled in Śaka 1480, a work entitled “Madhya-graha-siddhi” on the lines of Mahādeva’s work “Graha-siddhi”. It explains the calculation of the mean only. The true places are further to be calculated with the help of Mahādeva’s work. Kṛṣṇa Śāstrī Goḍbole observes in his Marāṭhī manuscript: “Nṛsimha, son of Rāma and grandson of Keśava Daivajñya, compiled a work entitled Graha Kaumudi in Śaka 1510. The date of birth of Nṛsimha is Śaka 1470”. One of the two dates, this one and Śaka 1480, mentioned above, must be erroneous. Since Nṛsimha says that the planets places should be obtained after multiplying the difference between the given year and Śaka 1480 by the annual motiins, the latter date cannot be wrong. Nṛsimha may perhaps have compiled this work some years after Śaka 1480.