-By Linda Lee Lyberg
Racing against Mother moon
Barn owl hunting prey 39 more words
47 more words
The duration of each twilight phase depends on the latitude and the time of the year. In locations where the Sun is directly overhead at noon – for example at the Equator during the equinoxes – the Sun traverses the horizon at an angle of 90°, making for swift transitions between night and day and relatively short twilight phases.