CELESTIAL CALCULATOR & EPHEMERIS·NOAA & MEEUS
Astronomy · Jiutai
A live observatory for the Sun, Moon, daylight, twilight and the sky above Jiutai.
Daylight, Twilight & Solar Rhythm
TOTAL DAYLIGHT DURATION10h 37m-172s compared to yesterday
NIGHT DURATION13h 23mAstronomical darkness & twilights
MORNING GOLDEN HOUR06:02 - 06:42Soft warm lighting
EVENING GOLDEN HOUR15:58 - 16:38Optimum photography window
Night (≤ -18°)
Astro Twilight (-18° to -12°)
Nautical (-12° to -6°)
Civil (-6° to 0°)
Daylight (> 0°)
DAWN (MORNING)
Astronomical Dawn04:25
Nautical Dawn04:58
Civil Dawn05:32
Sunrise06:02
DUSK (EVENING)
Sunset16:38
Civil Dusk17:08
Nautical Dusk17:42
Astronomical Dusk18:15