Occurrence of Attributes in Original Text

The text related to the cultural heritage 'The Jantar Mantar, Jaipur' has mentioned 'Astronomy' in the following places:
Occurrence Sentence Text Source
[1] The observatory is an example of the Ptolemaic positional astronomy which was shared by many civilizations.
European innovations in Astronomy were only slightly more accurate than the medieval Hindu instruments that Jai Singh had created.
The observatory forms part of a tradition of Ptolemaic positional astronomy which was shared by many civilizations.