Tuesday 2026-11-03

Wind Cave National Park

Hot Springs, SD

81 Good night. Moon up after 1:36am, clear skies.

Astronomical darkness 6:21pm–4:57am (10.6h)

Milky Way core only reaches 2.3°, low enough that haze takes most of it.

Why

Cloud	100	0% cloud, essentially clear
Moon	95	waning crescent at 24%, rises 1:36am, dark before that
Darkness	100	10h36m of astronomical darkness, 6:21pm–4:57am
Transparency	81	Dewpoint spread 10.1°C, dry and steady air
Targets	0	Orionids running, about 0 an hour at best