At the moment of the equinox, the sun appears straight overhead along Earth’s equator ... as we see in the map below: In the District, sunrise and sunset occur at 6:56 a.m. and 7:04 p.m ...

Wednesday is the first day of fall also known as the autumnal equinox.This is the day when the sun goes directly from the east to directly overhead to exactly west on the equator.

who uses spherical trigonometry to calculate the times of sunrise and sunset, begins by determining the correct declination of the sun–that is, its position north or south of the equator ...

At the equator, zero degrees latitude, the sun rises and sets “straight up,” perpendicular to the horizon, which equals 90 degrees. There the backwards sunrise/sunset movie will work just fine.

The Autumnal Equinox is when the sun is directly over the equator, creating equal parts ... You might ask why the sunrise and sunset times are not exactly twelve hours apart on the first day ...

22 at 9:03 p.m. That is when the sun was directly over the equator giving ... a point of light. Sunrise is defined as the moment the top of the sun crests over the horizon. Sunset occurs when ...

For a week or so around the Spring and Fall Equinox (around March 21 and September 21 most years), you can see the sunrise and sunset looking ... rays are right on the equator.