Shukra as a planet appears in various Hindu astronomical texts in Sanskrit, such as the 5th century "Aryabhatiya" by Aryabhatta, the 6th century "Romaka" by Latadeva and "Panca Siddhantika" by Varahamihira, the 7th century "Khandakhadyaka" by Brahmagupta and the 8th century "Sisyadhivrddida" by Lalla. These texts present Shukra as one of the planets and estimate the characteristics of the respective planetary motion. Other texts such as "Surya Siddhanta" dated to have been complete sometime between the 5th century and 10th century present their chapters on various planets with deity mythologies.