Are all the stars in the same constellation in similar areas?

Not necessarily, but usually they are far apart.

Constellation refers to a group of similar stars projected on the celestial sphere. That is to say, from the earth, all the celestial bodies in the starry sky in a certain area together form a constellation. There may be stars, nebulae, clusters and galaxies in these celestial bodies.

The above picture is drawn by myself, showing how a constellation is formed. Seen from the earth, all celestial bodies in this constellation belong to this constellation. Among them, celestial bodies may be only a few light years away from the earth, or more than a dozen light years away, or thousands or tens of thousands of light years away. Some of these deep space objects (mainly some distant galaxies) may be more than 65.438+0 billion light years away from the Earth.

From the earth, the two stars may be next to each other, but in fact, one may be in front and the other in the back, and the distance between them is more than tens of thousands of light years.

So the stars in the same constellation may be close or far away, but they are in the same sky area from the earth.