ColdSteel
Well, Lucifer means "son of the morning" or "morning star" (terms used for Venus). It has no reference to being a false sun except by association to the planet Venus by other cultures.
mP:
Venus was a false sun for the anciets. it comes before and after the true Sun which gives everyone and everything on earth life and warmth.
Revelation when it mentions Lucifer is merely stating the obvious and fact. Its not making a comment about any individual spirit or anything.
ColdSteel
Revelation isn't about astrology, for no one has been able to predict anything in the book using astrology signs or readings.
mP:
Revelation is not prophecy its history. It was written after and about Nero who is the 7th and 10th star as well as the number of the beast mentioned. The ancients believed that nero was rresurrected which is also confiemed by the author. In the old days letters also did double duty as numbers and if you turn 666 into a word it spells neron caesar. The oldest copies of revelation actually have 616 which spells Nero Caesar.
ColdSteel
It does use numerology, which was common in apocalyptic books like Daniel, and many of its prophecies have already taken place; and the rest appear to have excellent chances of being fulfilled.
MP:
The numerology in Rev is astrological. 7 = the heavenly bodies (planets ) and 12 for the months.