Why parallax method cannot be used for measuring distances of stars more than 100 light years away?
When a star is more than 100 light years away, then the parallax angle is so small that it cannot be measured accurately.
Why parallax method cannot be used for measuring distances of stars more than 100 light years away?
When a star is more than 100 light years away, then the parallax angle is so small that it cannot be measured accurately.