i've seen a lot of talk here and elsewhere that seemingly assumes the planet the prometheus goes to is LV-426, which based on the descriptions in the first alien movie, is a moon of an unnamed gas giant orbiting zeta 2 reticuli.
maybe i'm out of the loop, but why do we think it's LV-426? it doesn't look like the moon in alien at all in terms geology or atmospheric conditions. the only commonality i can see is that a u-shaped alien spaceship crashes on both. has ridley scott said it's LV-426 or something?
the star map given in the trailer certainly doesn't look like the neighborhood of zeta reticuli. eta, a little bit, but it doesn't match up.