Iarwain, you're right that "seven stars" is used to refer to the sickle of the Valar. I hadn't mentioned that since clearly Elendil didn't bring a constellation with him, unless it was a picture of one on his standard.
Also there were seven stars (plus the star of the house of Fëanor) drawn on the West-Gate of Moria--but probably that's unrelated.
I guess the standard seems the likely answer.
|