CELESTIAL CALCULATOR & EPHEMERIS·NOAA & MEEUS
Astronomy · Harefield
A live observatory for the Sun, Moon, daylight, twilight and the sky above Harefield.
Daylight, Twilight & Solar Rhythm
TOTAL DAYLIGHT DURATION10h 12m-226s compared to yesterday
NIGHT DURATION13h 48mAstronomical darkness & twilights
MORNING GOLDEN HOUR07:39 - 08:27Soft warm lighting
EVENING GOLDEN HOUR17:04 - 17:52Optimum photography window
Night (≤ -18°)
Astro Twilight (-18° to -12°)
Nautical (-12° to -6°)
Civil (-6° to 0°)
Daylight (> 0°)
DAWN (MORNING)
Astronomical Dawn05:47
Nautical Dawn06:26
Civil Dawn07:05
Sunrise07:39
DUSK (EVENING)
Sunset17:52
Civil Dusk18:26
Nautical Dusk19:05
Astronomical Dusk19:44