Observing score

Also called: score, verdict, tonight's score.

AstroPilot's 0–100 rating of the night for deep-sky observing, from cloud, seeing, transparency, darkness and moonlight.

Each hour gets a score from the forecast cloud cover at three heights, seeing, transparency, dew risk, how dark the sky is (twilight) and how much the Moon brightens it (moonlight). The night's verdict comes from its best stretch of dark hours.