Two different astronomical motions combined give a receding velocity greater than 'c' but with different effect on an observer

Physics Asked by Janko Bradvica on November 19, 2020

Let say a gallaxy is 15 billion light years away from us so the receding velocity caused by Hubble flow is more than speed of light which affects the relative motion of light towards Earth which in that case will never reach us.But let consider a relativistic astrophsycal jet 10 billion light years from us that has intrinsic velocity which moves it away from Earth close to speed of light.Will it ever been seen from Earth?Is the answer ‘Yes’ but with a considerable Doppler effect?

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