When is the longest day, shortest day, equinox and solstice? what are these things?

Answer 1

These things are caused because of Earth's axis tilt of about 23 degrees. The Sun's position overhead changes as Earth makes it's annual orbit around the Sun.

Equinox occurs when the Sun is directly over the equator. This happens twice per year. In 2007, the Vernal equinox was March 20. The Autumnal equinox will occur September 23. On these days the length of day and night are relatively equal.

Solstice also occurs twice per year but over different latitudes. Once when the Sun is over the northern most latitude which is called the Tropic of Cancer. In the northern hemisphere, this is called the Summer Solstice and would provide the longest daylight hours. In the southern hemisphere it is called the Winter Solstice where they would have the shortest daylight hours. In 2007 this occured on June 21.

The second solstice occurs when the Sun is over the southern most latitude which is called the Tropic of Capricorn. In the northern hemisphere, this is called the Winter Solstice and would provide the shortest daylight hours. In the southern hemisphere, it is called the Summer Solstice and they would experience the longest daylight hours. In 2007, this will occur on December 22.

http://www.archaeoastronomy.com/2007.shtml

The instances of the equinoxes are not fixed but fall about six hours later every year, amounting to one full day in four years, they are reset by the occurrence of a leap year. The Gregorian calendar is designed to follow the seasons as accurately as is practical but it is not perfect. Smaller irregularities in the times are caused by perturbations of the Moon and the other planets.

Currently the most common equinox and solstice dates are March 20, June 21, September 22and December 21, the four year average will slowly shift to earlier times in the years to come. This shift is a full day in about 70 years

Answer 2

The longest day, the summer solstice is June 21, the shortest day the winter solstice is December 21, the Spring equinox is March 21st and the Autumn equinox is September the 21st, They are all words for quarters of the year

Answer 3

This Site Might Help You.

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When is the longest day, shortest day, equinox and solstice? what are these things?

Answer 4

It takes the earth 1 year to revolve around the sun.but as it does so, it travels in a different plane than the earth is spining.
Put an object in your left hand in front of you (the sun) and a small ball in your right hand and revolve it around the object but as it goes to the left it goes up away from your desk, and then to the right down toward your desk,the two points in front of you are the equinox (or days of equal)12 hours of light and 12 hours dark.When the ball goes the the left and up, us in the northern hemisphere, it is the winter solsitice, the shortest day of the year. To the right and down the summer soltice or the longest day of the year

Answer 5

The vernal Equinox marks the beginning of Spring season in the Northern Hemisphere and this occurs on 22nd March.The Autumnal Equinox marks the beginning of Autumn in the Northern Hemisphere and this occurs on 23rd September.On these two days,the sun shines vertically over the Equator and so the day time and night time are equal in all the places.
The summer solstice is the beginning of summer in the Northern Hemisphere and winter in the Southern Hemisphere and this occurs on 21st June and the sun will be exactly over the tropic of cancer(23.5 degree N).
The winter solstice marks the begnning of winter in the Northern Hemisphere and summer in the Southern Hemisphere and this occurs on 22nd December.Now the sun will be shining exactly over the tropic of capricorn(23.5 degree S).
Generally the days will be longer in summer and shorter in winter whether it is northern hemisphere or southern hemisphere.But due to the apparent movement of the sun between Tropic of cancer and tropic of capricorn,duration of day time depends upon the exact latitude betwen these two important
latitudes.If the sun shines exacly over head ,the day time will be longer for that latitude .However, beyond 23.5 degrees N and S, the longest day will occur on 21st June and 22nd December In the Northern Hemisphere and Souhern Hemisphere respectively.The shortest day will occur on 22nd December and 21st June in the Northern Hemisphere and Southern Hemisphere respectively.

Answer 6

the longest day is in mid-summer, on the summer solstice. the shortest day is in mid-winter on the winter solstice. the equinoxes are in spring (vernal) and fall (autumnal). the two solstices and the two equinoxes are simply points in the earth's orbit at which day/night length is equal (equinox means equal night) or at one extreme or the other. prior to the summer solstice, day length is getting longer, night shorter. after the summer solstice, day length gets shorter while night length gets longer.

Answer 7

When is the longest day, ....june 21
shortest day....dec 21
, equinox and solstice?
what are these things?... they are the change of seasons

Answer 8

When Is Equinox