The period of time once the Sunlight is no more than six levels underneath the horizon at both sunrise or sunset. The horizon must be Plainly outlined as well as the brightest stars needs to be visible under superior atmospheric disorders (i.e. no moonlight, or other lights). A person however https://jejuweather45555.blogdosaga.com/26804966/the-smart-trick-of-jeju-weather-that-no-one-is-discussing