Here's the Starlink 17-52 launch on a Falcon 9 from Vandenberg just after sunset (about 8:10 PDT) on July 31, 2026. Taken from Moorpark, California with my android mobile phone. I'm not sure if it's dark enough to qualify as an unnatural noctilucent cloud (it should be in the mesosphere, the end of the contrail is main engine cutoff at about 80 km) but I liked the shadow cast by the plume from the set Sun, and also Venus in the upper center.