Who is the morning Star and the Bright Morning star?

Fall of the Morning Star

The first reference to the morning star as an individual is in Isaiah 14:12:How you have fallen from heaven, O morning star, son of the dawn! You have been cast down to the earth, you who once laid low the nations!

A named used of Satan - Lucifer, or "morning star" - comes from this verse.The word Lucifer refers to venus, one of the brightest objects in the sky.

Yet, when the sun rises, the light of even the brightest morning star is totally eclipsed.

The idea of a “bright morning star” is a star that outshines all the others. Satan, as perhaps the most beautiful creation of God, probably the most powerful of all the angels, was a bright morning star. Jesus, as God incarnate, the Lord of the universe, is THE bright and morning star. Jesus is the most holy and powerful “light” in all the universe. So, while both Jesus and Satan can be described as “bright morning stars,” in no sense is this equating Jesus and Satan. 

Satan is a created being. His light only exists to the extent that God created it. Jesus is the light of the world (John 9:5). Only Jesus’ light is self-existent. Satan may be a bright morning star, but he is only a poor imitation of the one true bright morning star, Jesus Christ, the light of the world.

Lucifer is the Latin name given to the Devil derived from this passage - light bearer. The King James Version unfortunately uses the Latin and translates the name to “Lucifer” (Isa. 14:12). The scholars that translated the King James Bible did not use the original Hebrew texts for all the Old Testament. In this passage they were influenced by Jerome's Latin Vulgate Bible from the fourth century. 

Jerome had mistranslated the Hebraic metaphor, “Day star, son of the Dawn,” as “Lucifer.” The name 'Lucifer' (shining one) was associated to Satan (before his fall) and is now the accepted terminology. But because of this widespread usage of the name, it confuses people. In Roman astronomy, Lucifer was the name given to the morning star (most identify as Venus). The morning star appears in the heavens just before dawn, and is diminished by the rising sun.

All the angels are called morning stars, collectively (Job 38:4-7), this is not a unique title. Satan is classed among the other morning stars as a created being, an angel. However, he being called the son of the morning separates him from among the other stars. The other angels are called stars, morning stars (symbolically), this title makes the point that he had a higher estate than the others.