Question

b) What is the distance PC called?​

Answer 1

Answer:

The parsec (symbol: pc) is a unit of length used to measure the large distances to astronomical objects outside the Solar System, approximately equal to 3.26 light-years or 206,000 astronomical units, i. e. 30.9 trillion kilometres (19.2 trillion miles).

Answer 2

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Answer:

Radius Of Curvature