Bharatiya Jyotihshastra (History of Indian Astronomy), translated by R. V. Vaidya v2.c12.s9.1

v2.c12.s9.1

Some Karaṇa works do not give a separate adhikāra to this subject. The Grahalāghava has given it separately. The chapter usually deals with the calculation of daily rises and sets of all planets (except the sun), the time of their remaining above the horizon i.e. length of their diurnal arcs, the length of shadow at any desired moment, observation etc.