eveningAstronomicalTwilight property
Twilight
eveningAstronomicalTwilight
The evening astronomical twilight.
The astronomical twilight is when the centre of the Sun is between 12° and 18° below the sensible horizon. Astronomical twilight is often considered to be "complete darkness". Sixth magnitude stars are now visible to the naked eye under good conditions.
Implementation
Twilight get eveningAstronomicalTwilight =>
_eveningAstronomicalTwilight ??= Twilight(
SunriseSunsetCalculator(instant, latitude, longitude,
sunZenithDistance: 102.0)
.calculateSunset(),
SunriseSunsetCalculator(instant, latitude, longitude,
sunZenithDistance: 108.0)
.calculateSunset(),
);