which of the following migrates north and south of the equator over the course of the year?

Before and after the equinox, the subsolar point migrates north or south. After the March equinox, the subsolar point migrates north as the Northern Hemisphere tilts toward the sun. Around June 21, the subsolar point hits the Tropic of Cancer, (23.5°N). This is the June solstice, after which the subsolar point begins to migrate south.

Full Answer

When does the subsolar point migrate north or South?

Before and after the equinox, the subsolar point migrates north or south. After the March equinox, the subsolar point migrates north as the Northern Hemisphere tilts toward the sun. Around June 21, the subsolar point hits the Tropic of Cancer, (23.5°N). This is the June solstice, after which the subsolar point begins to migrate south.

What does equator mean?

The Equator, at 0° latitude, receives a maximum intensity of the sun’s rays all year. As a result, areas near Earth’s Equator experience relatively constant sunlight and little equinoctial variation.

When does the sun go out in the southern hemisphere?

In the Southern Hemisphere, sun outages occur after the March equinox and before the September equinox. During an equinox, the sun is align ed directly behind satellites in geostationary orbit at the Equator.

What happens to the Earth's axis of rotation during the equinox?

Only during an equinox is the Earth's 23.5° axis not tilting toward or away from the sun: the perceived center of the Sun’s disk is in the same plane as the Equator. Before and after the equinox, the subsolar point migrates north or south.

When does the subsolar point move south?

Around June 21, the subsolar point hits the Tropic of Cancer, (23.5°N). This is the June solstice, after which the subsolar point begins to migrate south. After the September equinox, the subsolar point continues to move south as the Southern Hemisphere tilts toward the sun. Around December 21, the subsolar point hits the Tropic ...

How does latitude affect seasonal variation?

Seasonal variation increases with latitude. Atmospheric refraction also increases the disparity in the “equinox” length of day and night. At about 30° latitude, day is about eight minutes longer than night. Polar Regions.

What is the equinox?

An equinox is an event in which a planet ’s subsolar point passes through its Equator. The equinoxes are the only time when both the Northern and Southern Hemisphere s experience roughly equal amounts of daytime and nighttime.

How many equinoxes are there in the year?

On Earth, there are two equinoxes every year: one around March 21 and another around September 22. Sometimes, the equinoxes are nicknamed the “ vernal equinox ” (spring equinox) and the “ autumnal equinox ” (fall equinox), although these have different dates in the Northern and Southern Hemispheres.

What is the declination of the sun during the equinoxes?

During the equinoxes, solar declination is 0°. Solar declination describes the latitude of the Earth where the sun is directly overhead at noon. (The Equator, of course, is 0° latitude.) So, equinoxes are the only times of the year when the subsolar point is directly on the Equator.

What is the date of the December solstice?

Around December 21, the subsolar point hits the Tropic of Capricorn (23.5°S). This is the December solstice. As its name suggests, an equinox indicates equally illuminate d hemisphere s, with the solar terminator equally dividing the Earth from north to south.

What happens to the sun during the equinox?

During an equinox, the sun is align ed directly behind satellites in geostationary orbit at the Equator. Situated directly above the subsolar point, the satellites are flooded with direct solar radiation. This solar radiation can interfere with and even stop satellites from transmit ting signals.