I'm away from the board at present, but I wanted to pop in to welcome you to JWD.
(I could write essays on why Solomon almost certainly wasn't the author of Ecclesiastes, nor were any of the Gospels likely written by their namesakes.)
Not only do we have the same interests, but we also like to write essays on these subjects. Cool!
If you've got a Hebrew lexicon, it will take you less than five minutes to discover that the word used here, "Lu-Shfr", means "light-bringer, or morning star".
Surely you mean helel? Lucifer is Latin.