<Tr> <Td> Aryabhata </Td> <Td> 476 -- 550 CE </Td> <Td> Aryabhata was the author of the Āryabhatīya and the Aryabhatasiddhanta , which , according to Hayashi ( 2008 ) : ' circulated mainly in the northwest of India and , through the Sāsānian dynasty ( 224 -- 651 ) of Iran , had a profound influence on the development of Islamic astronomy . Its contents are preserved to some extent in the works of Varahamihira ( flourished c. 550 ) , Bhaskara I ( flourished c. 629 ) , Brahmagupta ( 598 -- c. 665 ) , and others . It is one of the earliest astronomical works to assign the start of each day to midnight . ' Aryabhata explicitly mentioned that the earth rotates about its axis , thereby causing what appears to be an apparent westward motion of the stars . In his book , Aryabhatiya , he suggested that the Earth was sphere , containing a circumference of 24,835 miles ( 39,967 km ) . Aryabhata also mentioned that reflected sunlight is the cause behind the shining of the moon . Aryabhata 's followers were particularly strong in South India , where his principles of the diurnal rotation of the earth , among others , were followed and a number of secondary works were based on them . </Td> </Tr>
<Tr> <Td> Aryabhata </Td> <Td> 476 -- 550 CE </Td> <Td> Aryabhata was the author of the Āryabhatīya and the Aryabhatasiddhanta , which , according to Hayashi ( 2008 ) : ' circulated mainly in the northwest of India and , through the Sāsānian dynasty ( 224 -- 651 ) of Iran , had a profound influence on the development of Islamic astronomy . Its contents are preserved to some extent in the works of Varahamihira ( flourished c. 550 ) , Bhaskara I ( flourished c. 629 ) , Brahmagupta ( 598 -- c. 665 ) , and others . It is one of the earliest astronomical works to assign the start of each day to midnight . ' Aryabhata explicitly mentioned that the earth rotates about its axis , thereby causing what appears to be an apparent westward motion of the stars . In his book , Aryabhatiya , he suggested that the Earth was sphere , containing a circumference of 24,835 miles ( 39,967 km ) . Aryabhata also mentioned that reflected sunlight is the cause behind the shining of the moon . Aryabhata 's followers were particularly strong in South India , where his principles of the diurnal rotation of the earth , among others , were followed and a number of secondary works were based on them . </Td> </Tr>
who was the famous indian astronomer who discovered that earth revolves on an axis
who was the famous indian astronomer who discovered that earth revolves on an axis
Aryabhata
Aryabhata