Multiple choice

Who had an observatory at Ujjain?

  1. Brahmagupta

  2. Aryabhatta

  3. Varahmihir

  4. Vagabhatta
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A Correct answer
Explanation

Brahmagupta, the 7th-century Indian mathematician and astronomer, operated an observatory at Ujjain - one of ancient India's leading astronomical centers. While Varahmihir also worked in Ujjain during the earlier Gupta period, Brahmagupta is more specifically associated with establishing and using the observatory there for his astronomical calculations.

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