Draw a line from Mirach through the upper streamer star, and go twice the distance. You've just located the Andromeda galaxy!
连线奎宿九和丝带上方位置两倍距离，就完全定位到了仙女座星系。
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I learned to find the Andromeda galaxy by "star-hopping" from the star Alpheratz in Great Square to the two stars marked here – first Mirach, then Mu Andromedae.