Now that I'm a dad of a little girl, I look at things differently than I did when I only had little boys. For instance, if someone came up to me saying that they were better looking than my daughter, I would unleash some crazy monster that I happen to keep in my backyard to eat someone they love. Those of you with little girls understand me. I would like to take credit for such a great idea, but someone beat me to it. This guy is like Father of the Year in my book. Here's the story:
The Nereids did not like this at all. They cried and posted stuff on their Facebook (which back then was called Facescroll) about how mean she was. Then they went to daddy and complained. Daddy, being Poseidon, decided that no one makes his little girls cry and went straight over to Cassiopeia to set the matter straight. He made them offer their daughter, Andromeda, up as a sacrifice to one of his sea monsters. They did and watched as the monster came forward to devour their little sweetheart.
Perseus just happened to be flying by on his way back from killing Medusa when he saw this beautiful, naked woman strapped to a rock about to be eaten by a monster. He flew down to Cassiopeia and her husband Cepheus to ask if he could marry her (always the opportunist that Perseus). Cepheus says yes, if he can beat the monster and save the girl. As he just happens to have the head of Medusa in his back pack (I'm imagining this as a Dora the Explorer episode - "Can you see anything in my back pack that could defeat the monster? Say, Medusa! Louder!) he turns the monster into stone. Strangely enough, Poseidon doesn't really care.
Cepheus and Cassiopeia, however, renege on their promise since they really want Andromeda to marry some dude named Phineus (which was her uncle - EWWW!). Perseus turns everyone against him into stone, scoops up Andromeda and lives happily ever after.
You can see her right now, if you live in the northern hemisphere. Just look north and up. If you don't know which way is north, pay attention to the sun as it sets. Apollo always sets it in the west. Then face that direction and turn right. Viola! North!
What you are looking for is pretty easy to spot. It is five stars in the shape of a W. You can't miss it. If you have a pair of binoculars or a telescope, looking in that direction is a pretty neat thing too. This constellation is right in the middle of the Milky Way, so you will be bombarded with stars.
This should give you something to do if you are stuck with your in-laws over the holidays and just need to get out for a moment.
Pictures from: http://www.storiesinthestars.com/constellations/cassiopea.html