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Where are the nights and days equal on earth?
There are two days out of the whole year when day and night are just about the same length: 12 hours. These days are called equinoxes because the direct sunlight rays move toward the equator, making the sunlight about equal in both the Northern and Southern Hemispheres. The Fall (autumnal) equinox for the Northern Hemisphere is September 21 or 22, and the Spring Equinox is March 20. In the Southern Hemisphere, the names are reversed for the two days. Because of the apparent width of the solar disc, the days at the equinoxes are still slightly longer than the night. The parity of day and night occurs the day before the vernal equinox, and the day after the autumnal equinox.
When does summer solstice in northern hemisphere occurs?
Near June 21.
What causes a equinox?
The length of daylight in the day varies through the year as the Earth goes around the sun. Two times a year, except at the equator, the daylight length is 12 hours, so the daylight and night time are equal.
How many miles are there between Earth and the Sun?
The sun is 93,000,000 miles away. That's really far!The Earth orbits about 93 million miles from the Sun (150 million kilometers). It is an elliptical orbit, and the Earth is a little closer to the Sun in January, and a little further out in July. But the difference is not great, only 1.5 million miles closer or farther out.The average distance from the Earth to the Sun is also called 1 astronomical unit (or AU). This is established as 149, 597, 870.7 kilometers (92,955,887.6 miles).Aphelion (when the Earth is the farthest from the Sun) occurs around the first week of July. The distance is about 152 million km (94.4 million miles).Perihelion (when the Earth is closest to the Sun) occurs in the first week of January. The distance is about 147 million km (91.3 million miles).Although the Earth is closer to the Sun during "summer" in the Southern Hemisphere, the temperatures are actually warmer during the "summer" in the Northern Hemisphere. This is mainly due to the larger land areas in the Northern Hemisphere, which can increase in temperature more than water areas (the Southern Hemisphere is mostly oceans).
On which date does the maximum duration of insolation occur in the Northern Hemisphere?
Maximum duration of insolation occurs on the summer solstice (June 21). Duration of insolation is the hours of sunlight we receive on that given day in a given area. The summer solstice, or June 21, is when we have the most amount of sunlight on a day in the whole entire year so therefore; maximum duration of insolation is greatest on that day.
In the northern hemisphere in what month is the autumnal equinox?
The Answer is September since it is the north
When does the fall equinox occur in the northern hemisphere?
The fall equinox occurs around September 22 or 23 in the northern hemisphere. This marks the beginning of autumn when day and night are roughly equal in length.
What is the Fall equivalent to the Spring Equinox?
Spring equinox occurs around March 20 and Fall equinox occurs around September 22 for the Northern Hemisphere. For the Southern Hemisphere these dates are opposite; the Spring equinox is around September 22 and the Fall equinox occurs around March 20.
In what month is the autumnal equinox in the western hemisphere?
It occurs in March, currently on March 20 each year. (the same date is the "vernal equinox" in the Northern Hemisphere)
What happens in the Southern Hemisphere when the autumnal equinox occurs in the Northern Hemisphere?
opposite seasons - spring
An equinox occurs on the same day at the same time in both hemispheres?
Correct. The March equinox, which is typically March 21 but can vary by a day either way, is the spring equinox in the northern hemisphere, because the Sun us rising into the northern hemisphere. At that very same moment, it is the autumnal equinox in the southern hemisphere, because as the Sun is moving INTO the northern hemisphere, it is moving away from the southern hemisphere. The September 21 equinox sees the Sun moving south of the equator, so the spring equinox in the south, while it is the autumnal equinox in the North.
Which will occur in December an Equinox or Solstice?
The December Solstice occurs in December. It marks the shortest day and longest night of the year in the Northern Hemisphere and the longest day and shortest night in the Southern Hemisphere. The Equinox occurs around March and September when day and night are of equal length.
When do the solstice and equinox occur in the southern hemisphere?
The summer solstice occurs around December 21st, while the winter solstice occurs around June 21st in the southern hemisphere. The vernal equinox occurs around September 22nd, and the autumnal equinox occurs around March 20th in the southern hemisphere.
In the northern hemisphere what occurs on september 22 or 23?
On September 22 or 23, the September equinox occurs in the Northern Hemisphere, marking the first day of fall. During this time, day and night are approximately equal in length, with the sun positioned directly above the equator. It is a transition point where the sun's path begins to shift towards the south, leading to shorter days and longer nights as winter approaches.
What is the difference between vernal equinox and antumnal equinox?
The vernal equinox occurs in March and marks the start of spring in the Northern Hemisphere, while the autumnal equinox occurs in September and marks the start of fall. During these equinoxes, day and night are approximately equal in length all over the world.
What is the beginning of spring in the northern hemisphere marked by?
the sun is directly above the equator. The vernal equinox occurs on this day.
Twice a year the sun is directly over the equator this is called the?
The Sun is directly overhead the equator two times per year, known as the Equinoxes. In the northern hemisphere, the Spring Equinox occurs on March 20 and the Fall Equinox occurs on September 22.
