About a moon’s-width to the right is the top of Mt. Diablo (3,849’), and this is the time of year when the moon rides up so high on it. As the year progresses, it moves left/north. Moon facts everybody should know: It’s about 4.5 billion years old. Was formed when a Mars-sized rock hit earth and broke off a big chunk  and splatter (also tilting the earth on its axis and giving it a good spin). The chunks and dust reformed into the moon. If that crash hadn’t happened, no moon, no song called Blue Moon, no Bob Dylan line “that big fat moon is gonna shine like a spoon, but we’re gonna let it/you won’t regret it.” On a full moon night, moonrise and sunset happen at the same time. This wasn’t quite a full moon.