Spica is her diamond Virgo cluster is in this constellation. Nearest large cluster of galaxies - 18 Mpc. Then move over a little bit to see four stars in a quadrangle shape. Supposedly looking over at Virgin's diamond wanting to snatch it. Then go above Virgo and Corvus to see Leo .
Planets move through it because it is one of the constellations on the ecliptic.
There are 12 major constellations along the ecliptic. These form the zodiac. Finally in another part of the sky we have Perseus. Above Andromeda and to the left of Cassopeia. Andromeda got chained to a rock Perseus saved and married her they flew off on Pegasus.