التركية - الإنجليزية
تعريف günlük tan في التركية الإنجليزية القاموس.
- civil twilight
- The period in which the sun is less than 6° below the horizon in the morning and evening
- The time between the moment of sunset, when the sun's apparent upper edge is just at the horizon, until the center of the sun is 6° directly below the horizon
- is defined to begin in the morning, and to end in the evening when the center of the Sun is geometrically 6 degrees below the horizon This is the limit at which twilight illumination is sufficient, under good weather conditions, for terrestrial objects to be clearly distinguished; at the beginning of morning civil twilight, or end of evening civil twilight, the horizon is clearly defined and the brightest stars are visible under good atmospheric conditions in the absence of moonlight or other illumination In the morning before the beginning of civil twilight and in the evening after the end of civil twilight, artificial illumination is normally required to carry on ordinary outdoor activities Complete darkness, however, ends sometime prior to the beginning of morning civil twilight and begins sometime after the end of evening civil twilight
- occurs while the Sun is below, but less than 6° below, the horizon Most outdoor activities do not require artificial light during this period
- The time between the moment of sunset, when the sun's apparent upper edge is just at the horizon, until the center of the sun is 6 degrees directly below the horizon See twilight
- The time when the center of the Sun passes a reference altitude of 6 degrees below a mathematical horizon