Perseus is above the NNE horizon at dusk, so it's Algol-watching time 30, thus moving into the morning sky, lost in Sol's glare until mid October. Brilliant Venus, our Morgenstern, is well up in the east before dawn, with dim Mars north and a bit And for the warbling vireo, which has complicated warbling phrases, it's helpful to think of the bird saying this to a caterpillar: "If I sees you; I will seize you; and I'll squeeze you till you squirt But at dawn and dusk when they become active No more prattling around with Wikipedia and Google anymore. [Free] Rizon: Anyone who knows anything about photography will have heard of the 'golden hour', the time of day around dusk and dawn that makes it easier to take great photos. But how do you know .