Assertion: civil twilight | /r/CapableOf | begin before sunrise
Facets:
value: for computational purposes
type: PURPOSE
value: during the equinoxes
type: TEMPORAL
value: in quito
type: LOCATION
Source sentences:
text: For example, in Quito, Ecuador, which is very close to the Equator, civil twilight begins only about 21 minutes before sunrise during the equinoxes.
text: It marks the end of civil twilight, which begins at sunset.
text: Civil twilight starts at sunset and ends roughly 45 minutes later, when the sun’s center has plunged six degrees below the horizon—equal to 12 times its own width.
text: Civil twilight ends after sunset or begins before sunrise when the solar depression angle is 6° = solar zenith angle
text: For computational purposes, civil twilight begins before sunrise and ends after sunset when the geometric zenith distance of the center of the Sun is 96 degrees - 6 degrees below a horizontal plane.