S TA R T San Diego 3 295 days miles FINISH Twentynine Palms INSIDE TIP Download the NightCap Pro app to capture long exposures with your phone's camera, and plan your trip during a new moon for the darkest skies. B E ST S P OT F O R STA R P H OTO S The odd-shaped boulders of Joshua Tree's Cap Rock make great foreground silhouettes for star trail photos. J OS H UA T R E E N AT I ON AL PA RK