Satan and Lucifer have nothing to do with each other.
Lucifer is the Morning Star and is the Latin name for "Phosphorus" who is the greek goddess repressenting Light,Love and the morning star, She was called the Morning star because it appears in the Morning as the brightest star before the sun rises. The reason it was called Light Bearer because the phosphorus acted like a beacon that could tell the ancient that the sun will rise very soon, and this in a poetic construct was called "I Bear Light" which in latin is Lucifer. To the Greeks, Semetics and kemetic Lucifer was alway Feminine and usally repressented Love and fertility so picturing Lucifer as a Man and Evil makes no sense what so ever and thus false mythology and pictation.