And every time there's a galaxy -- at its location there's a galaxy -- and if we know anything about the galaxy, which we do, because there's a redshift measurement and everything, you put in the type of galaxy and the color, so this is the real representation.
２度の視野の中で遥か遠くまで観測します 銀河を見つける度に 赤色偏移などを観測し 銀河の種類や色を 記録していくのです これは実際の観測結果を表したものです