Question

most distant stars visible

Answer 1

Under today’s light polluted skies the most distant star that can be seen without any great difficultly is the star Deneb. Located in the constellation of Cygnus the swan and one point of the summer triangle asterism, this star is located around 1550 light years away from Earth.

Answer 2

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Stars are not visible during time because they are so far and also their light hide under the light of sun