P4C-452
From The Stargate Omnipedia
Designated rendezvous point for the Earth ship Prometheus.
This planet was selected because it was near to Prometheus's position, and because the Stargate on Kallana was not deactivating (sustained by a black hole on the other side).
DETAILS
HOME TO - Unknown
FIRST APPEARED - Beachhead
KEY EPISODE
Beachhead - SG-1 travels to 452 from Earth to the waiting Prometheus.