2006-06-20 11:50:40 · 19 answers · asked by Anonymous in Education & Reference ➔ Homework Help
because its the day summer starts :-D
2006-06-20 11:54:22 · answer #1 · answered by nine in the afternoon 4 · 0⤊ 0⤋
June 21st marks the summer solstice, which is when the Earth is at a point in its orbit where one hemisphere is most tilted towards the sun. Because of the tilt the sun appears at 23.45 degrees above the celestial equator, thus making its highest path across the sky causing the longest daylight period and hence the shortest night. This day usually occurs on June 21/June 22 in the northern hemisphere and on December 21/December 22 in the southern hemisphere. The actual date changes due to differences between the calendar year and the tropical year (the amount of time it takes for the Earth to make its ecliptic orbit around the Sun).
2006-06-20 11:59:22 · answer #2 · answered by Haus 4 · 0⤊ 0⤋
For the northern hemisphere: The earth's axis is tilted, and on June 21 the axis tilts in the direction of the sunlight. For the southern hemisphere: The southern end of the earth's axis factors in the direction of the sunlight on Dec. 21, making that the longest day in places south of the equator.
2016-10-31 05:10:34 · answer #3 · answered by shuey 4 · 0⤊ 0⤋
Beginning Of Summer
2006-06-20 11:53:38 · answer #4 · answered by Toddacanda 5 · 0⤊ 0⤋
It's the summer solstice. It's the longest day of the year because of the tilt of the Earth's axis.
2006-06-20 11:55:40 · answer #5 · answered by Anonymous · 0⤊ 0⤋
It is the summer solciste. This is the day were the earth is the closest to the sun on its way around in an eliptical orbit. In the northern hemisphere the earth is exposed to the suns rays for a longer duration of time.
2006-06-20 11:56:31 · answer #6 · answered by chris_zingone 2 · 0⤊ 0⤋
It is for people in the Northern Hemisphere because that's when the NH is tilted the most toward the sun, so the rays are shining on the widest area for the longest.
2006-06-20 11:53:15 · answer #7 · answered by sirius556 1 · 0⤊ 0⤋
summer solstice
The summer solstice is the longest day of the year, respectively, in the sense that the length of time elapsed between sunrise and sunset on this day is a maximum for the year.
http://www.windows.ucar.edu/tour/link=/the_universe/uts/summer.html
2006-06-20 11:52:47 · answer #8 · answered by cmhurley64 6 · 0⤊ 0⤋
It's not the logest, really is it? The summer solstice is only the one with the longest sunlight. Right?
2006-06-20 12:45:57 · answer #9 · answered by Ariana 4 · 0⤊ 0⤋
Because it is officially the first day of summer and it begins the summer season
2006-06-20 12:03:03 · answer #10 · answered by Jeannette D 1 · 0⤊ 0⤋
Because the northern hemishere of the earth is leaning toward the sun the most on this day.
2006-06-20 11:53:46 · answer #11 · answered by Scott R 3 · 0⤊ 0⤋