Before landing your spacecraft at whatever far-flung destination you have in your sights tonight, experience the grandeur of the twinkling firmament at one of the west side's most unheralded resources, Santa Monica College's planetarium. With the moon's delayed ascent, tonight's breathtaking telescopic viewing includes the Pleiades, the Orion Nebula, and a head-spinning array of constellations from the legendary to the obscure. What with the view, the science tidbits, and the cocktail-party wisdom, you'll finally get a night of LA stargazing that won't have you asking for a refund on your tour-bus ticket money.