The period of time once the Solar is not more than 6 degrees below the horizon at possibly dawn or sunset. The horizon really should be Plainly outlined and the brightest stars need to be seen beneath excellent atmospheric circumstances (i.e. no moonlight, or other lights). 1 still should really https://jeju-weather01110.rimmablog.com/26649251/the-smart-trick-of-jeju-weather-that-no-one-is-discussing