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The Summer Solstice, which is the longest day of the year, generally occurs on June 21 each year, but this can vary a day either way depending on the cycle of leap years. (This is actually the SHORTEST day of the year in the Southern Hemisphere.)
The reason is that the Earth spins on its axis, and the Earth also orbits the Sun. The orbital plane of the Earth's orbit is called the "ecliptic", and if the Earth's axis of rotation were "normal to" (meaning, at a 90 degree angle to) the ecliptic, then the Sun would always be over the equator and we would have no seasons - and the days and nights would always be 12 hours long.
But the axis of the Earth's rotation isn't normal to the ecliptic; it is tilted at about 23.4 degrees. This "axial tilt" gives us our seasons. On June 21, the northern hemisphere of the Earth is tilted toward the Sun, as close as it ever does; the next day, as the Earth orbits the Sun, it starts to move a bit away.
Yes, June 21st is typically the longest day of the year in the Northern Hemisphere and marks the summer solstice. This is when the Earth's axial tilt is most inclined towards the Sun, resulting in the longest period of daylight for the year.
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What day is the longest day in summer?
The longest day in summer, known as the summer solstice, generally falls on June 21st in the Northern Hemisphere and December 21st in the Southern Hemisphere. On this day, the sun reaches its highest point in the sky, resulting in the longest period of daylight of the year.
What are the winter and summer solstices?
June 21st and December 21st, the shortest and longest nights of the year.
Does the northern hemisphere have more daylight hours on December 21st or June 21st?
The northern hemisphere has more daylight hours on June 21st, which is the summer solstice and the longest day of the year. December 21st is the winter solstice and has the shortest daylight hours of the year.
December 21st and June 21st are called the?
December 21st is the winter solstice, marking the shortest day of the year in the Northern Hemisphere. On the other hand, June 21st is the summer solstice, marking the longest day of the year in the Northern Hemisphere.
What date does summer start in Texas?
Summer officially starts in Texas on June 21st, which is the summer solstice and the longest day of the year.
What is the day 21st June and 22nd December calls?
21st June is the longest day of the year and 22nd December is the shortest day of the year.
What is the date of the longest day of the year in the Northern Himisphere?
the 21st of june
What is the date of the longest day of the year in the southern hemisphere?
21st June
When is the longest day of the year of 2011?
The longest day in any year is the summer solstice. In 2011, this will occur on June 21 in the Northern hemisphere and December 22 in the Southern hemisphere.
When does the longest day happen?
The longest day of the year, also known as the summer solstice, occurs around June 21st in the Northern Hemisphere. It is when the North Pole is tilted closest to the sun, resulting in the longest period of daylight for that hemisphere.
When is the longest day of the year in new jersey?
June 21st - summer solstice
Which day has longest day-length in India?
The longest day-length in India occurs around June 21st, which is the summer solstice. On this day, the Northern Hemisphere is tilted towards the sun, resulting in the longest period of daylight of the year.
What day is the longest day in Connecticut?
The summer solstice is the longest day in Connecticut. The solstice usually falls on either the 20th or 21st of June. This year (2011) it falls on the 21st.
How many hours are there in the longest day of the year of 2011?
June 21st in the northern hemisphere - December 21st in the southern.
What day is the longest day in summer?
The longest day in summer, known as the summer solstice, generally falls on June 21st in the Northern Hemisphere and December 21st in the Southern Hemisphere. On this day, the sun reaches its highest point in the sky, resulting in the longest period of daylight of the year.
What date is the longest date?
21st June is the longest day out of a.21st march b.21st June c.21st September d.21st December answer = b
What are the winter and summer solstices?
June 21st and December 21st, the shortest and longest nights of the year.
