Suryasiddhanta 2.47

2.47

grahagatisādhane vakṣyamāṇe gatiphalaṃ grahagateḥ sādhitaṃ tathā candragateścandragatiphalaṃ na sādhyaṃ kintu candrasya madhyamagatiḥ svasya candrasya mandaṃ mandoccaṃ tasya dinagatyā hīnā kāryā tādṛggateḥ sakāśāddorjyāntarādikaṃ dorjyāntaramādibhūtaṃ yasyaitādṛśaṃ gatiphalaṃ vakṣyamāṇaprakāre dorjyāntaraguṇā bhuktirityādau dorjyāntarādeva gatiphalotpatteḥ | siddhaṃ kṛtvā candramadhyamagatāvṛṇadhanaṃ vakṣyamāṇarītyā bhavati | atropapattiḥ | vakṣyamāṇaṃ gatiphalaṃ kendragatyopapannamityanena sūryādigrahāṇāṃ vicandrāṇāṃ mandoccagateratyalpatvāt svagatyaiva gatiphalaṃmuktam | tatra candrasya tathā sādhane bahvantarapātāt tasya mandoccagatyūnasvagatirūpakendragateḥ phalaṃ sādhitaṃ gatiphalaṃ yadgateḥ sādhyaṃ tadgatāveva saṃskāryyamiti vacyamāṇarītyudāsāya candrabhuktāvityuktamanyathā kendragatereva sphuṭatvaṃ syānna candragateriti |
atha grahāṇāṃ mandaspaṣṭagatiṃ vāsanāsūcanapūrvvagatiphalānayanapūrvvikāṃ ślokābhyāmāha |