CELESTIAL CALCULATOR & EPHEMERIS·NOAA & MEEUS
Astronomy · Porto
A live observatory for the Sun, Moon, daylight, twilight and the sky above Porto.
Daylight, Twilight & Solar Rhythm
TOTAL DAYLIGHT DURATION10h 44m-160s compared to yesterday
NIGHT DURATION13h 16mAstronomical darkness & twilights
MORNING GOLDEN HOUR08:49 - 09:28Soft warm lighting
EVENING GOLDEN HOUR18:54 - 19:33Optimum photography window
Night (≤ -18°)
Astro Twilight (-18° to -12°)
Nautical (-12° to -6°)
Civil (-6° to 0°)
Daylight (> 0°)
DAWN (MORNING)
Astronomical Dawn07:15
Nautical Dawn07:48
Civil Dawn08:20
Sunrise08:49
DUSK (EVENING)
Sunset19:33
Civil Dusk20:02
Nautical Dusk20:34
Astronomical Dusk21:07