eveningCivilTwilight property

Twilight eveningCivilTwilight

The evening civil twilight.

The civil twillight is when the centre of the Sun is between 0° 50' and 6° below the sensible horizon. Large terrestrial objects can be seen but no detail can be distinguished. The sea horizon is clearly defined and the brightest stars and planets are visible.

Implementation

Twilight get eveningCivilTwilight => _eveningCivilTwilight ??= Twilight(
      SunriseSunsetCalculator(instant, latitude, longitude).calculateSunset(),
      SunriseSunsetCalculator(instant, latitude, longitude,
              sunZenithDistance: 96.0)
          .calculateSunset(),
    );