Tool walkthrough · 0:47 · silent, with on-screen words
A walkthrough of Tonight Observing Score for Georgetown, recorded from the real tool with a dated forecast: the Go, Maybe or Skip dial, what goes into it, and when to go.
A silent walkthrough recorded from the real Tonight Observing Score tool on this site, for Georgetown, Guyana, with a dated forecast, the cursor and on-screen words showing each step.
With the Open-Meteo forecast fetched at Tue 6 Oct, 15:50 GYT, the tool scores tonight 83 out of 100, Go (Go tonight — solid window, dew is a concern), from 25% cloud, watch dew, transparency excellent, 10.0h astro dark, moon 14% lit, clear window soon. Its best clear window is tonight, 20:00–02:00 GMT-4, excellent. The best night this week is tonight at 83. The bands: 70–100 Go (Clear enough to drive for.); 45–69 Maybe (Watch dew and gaps.); 0–44 Skip (Cloud, dew, moon, or no dark window.).
0:00 Tonight Observing Score answers one question for your place: go, maybe, or skip?
0:04 The dial scores tonight out of 100. With the forecast of Tue 6 Oct, 15:50 GYT Georgetown scores 83: Go.
0:12 The chips are its inputs: cloud, dew, haze, hours of astronomical dark, the Moon, and a bonus for a clear window soon. Tonight: 25% cloud, watch dew, moon 14% lit.
0:21 The best clear window is tonight, 20:00–02:00 GMT-4, rated excellent.
0:28 It also ranks the week: the best night is tonight, at 83.
0:34 70–100 is Go, 45–69 is Maybe, 0–44 is Skip. Go means clear enough to drive for.
0:43 Check the score in the afternoon, and the window before you leave.