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What was Gan De's contribution to astronomy? O A. He developed the world's first star catalogue. B. He was the first to record a lunar eclipse. OC. He was the first to observe planets. D. He invented the
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What was Gan De's contribution to astronomy?

O A.
He developed the world's first star catalogue.
B.
He was the first to record a lunar eclipse.
OC.
He was the first to observe planets.
D.
He invented the telescope

User Hans Leautaud
by
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2 Answers

7 votes
I think it is d yeah
User Balkrishna
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8 votes

Answer:

a. he developed the worlds first star catalogue.

User Sandeep Fatangare
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