The Horus/Osiris connection from the Greeks is elluding me.

[www.theoi.com]
[homepage.mac.com]
"Greek writers of the Classical period made comparison between their own understanding of Orion with regards to Horus or Osiris, but of course they approached this consideration from their own perspective that the Constellation represented a giant warrior/human figure."

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"Ptah-Sokar-Osiris"
-- Sokar, my understanding is he is equivalent to the sun-god "Re". Osiris descended from Re descended from Ptah.