Earendil a Man? Or Aragorn as King of Arnor?

Hi there everyone! Since this is my first new thread here I thought I'd introduce myself. I'm Craig, 19, from the UK. I particularly love the fables in the Sil (and UT), and though I haven't yet allowed myself the sublime pleasure of devouring Letters and the Histories, I enjoy thoroughly reading the posts on here containing passages from them! I'd also like to thank those who have rated me and said such nice things in welcome

Anyway, to the point at last. I havent found anything pertaining to this particular topic on the Barrowdowns before so please forgive me if I've missed it.

"The hobbits did not understand his words, but as he spoke they had a vision as it were of a great expanse of years behind them, like a vast shadowy plain over which there strode shapes of Men, tall and grim with bright swords, and last there came one with a star on his brow."
- FotR, pg.143
(That is the vision of Frodo, Sam, Pippin and Merry as Tom Bombadil speaks to them of the Men of Westernesse.)

The hobbits were obviously witnessing the unbroken line of kings stretching from even the fore-fathers, first kings of Numenor, through the Elendili, to the present descendants of Isildur. Yet to me, it seem ambiguous as regards which direction that timeline is flowing.

Earendil wore the Silmaril upon his brow as he soared the sky. Aragorn wore the Elendilmir on his brow when he became King of Arnor. But Earendil is the more famed for the light on his brow - the one renown for it - and Earendil is assuredly the ultimate father of the royal line of Numenor.

But for what reasons would the Professor place a Half-elf who chose to be of Elven fate in a line of "Men"? The change in fea ought be complete - Earendil is no Man. Besides, it would be the very line of descent working in reverse for this to be so - ancestors borrowing their blood from their descendants, so to speak. Yet the idea still remains vaguely feasible.

But our only choice seems to be Aragorn. He comes last in the line, which makes more sense. Certainly the description, "tall and grim with bright swords", seems to befit our Strider much more than Earendil the Mariner (who need not appear on the list at all).

This is what I wanted to touch on, really. Why choose the striking identifying feature of Earendil (who could feasibly be at the end of the line) to vaguely pronounce the identity of Aragorn (who also is last of the line - until Eldarion of course!)?

The only reason I can pick out is that the hobbits are travelling through Arnor at the time, technically - which would correlate with the jewel being bound to Aragorn's brow when he ascended the throne there.

But still - for what reasons did the Professor use the word "star"? Surely Earendil was the only character ever to literally wear a star upon the brow?

I leave it open: Who is the one who came last who had a star upon his brow? Hopefully one of the geniuses here can answer the question for me