How many thousand light years is Gemini from the earth ... I want to have it.

There is no definite distance between the constellation and the earth, from zero to infinity.

People always ask the distance between a constellation and the earth, but this is a conceptual mistake. Constellations are artificially defined areas in the sky. Looking out from the earth, all celestial bodies belong to this constellation as long as they are in this area (range), regardless of the distance. So you can't say, "How far is the East from me?" Or "How far am I from the south?"

When the moon moves to a certain constellation, it temporarily belongs to this constellation, with a distance of 380,000 kilometers. If you aim the Hubble Space Telescope at this constellation, you may see galaxies as far away as 654.38+00 billion light years. These galaxies also belong to this constellation.