Hi buddy....how are you all....!!!?
Twilight or dusk are part time in the day or the State of the dark half of the earth when the Sun is setting, [1] when the solar disc as a whole has been lost from the horizon.
This time starts after sunset when the light is still visible in the sky until the arrival of the night (Isha) when the light is red (syafak) is really missing.
Civil Twilight is a time in which matahariberada at 6 degrees below the cakrawalapada night. At this time, the objects can not be distinguished as well as some of the planets and stars are visible with the naked eye.
Nautical twilight is when the Sun is as high as 12 degrees below the horizon in the evening. During this time, the object can no longer be separated, and the horizon cannot be seen with the naked eye.
Astronomical twilight is the time at which the Sun is as high as 18 degrees below the horizon in the evening. At the moment, the Sun is no longer lit up the sky, and no longer at odds with astronomical observations.
Dusk is different with the setting of the Sun, which is the time when the Sun is sinking landung side on the horizon.
Thank you to all my friends....!!