Thursday 24 December 2015

Why Do the Seasons Change?


Why Do the Seasons Change? when is the first day of spring 2016?. The four seasons are dependant on shifting sunlight (not heat!)—which is dependant on how our world orbits the Sun as well as the tilt of that axis.

The winter solstice would be the “shortest day” of the season, meaning the very least amount of sunflight; the Sun reaches its most southern reason the sky at local noon. After this date, the periods start getting “longer,” i.e., the volume of daylight starts to increase See our First Day of Winter page!

On the vernal equinox, for 24 hours are each approximately 12 hours long (using the actual period of equal night and day, inside the Northern Hemisphere, occurring a couple of days before the vernal equinox). The Sun crosses the celestial equator going northward; it rises exactly due east and sets exactly due west. See our First Day of Spring page!




On the summer months solstice, we love the most daylight in the calendar year. The Sun reaches its most northern part of the sky at local noon. After this date, purchasing start getting “shorter,” i.e., the duration of daylight actually starts to decrease. See our First Day of Summer page!

On the autumnal equinox, nighttime and daytime are each about 12 hours long (using the actual period of equal for 24 hours, inside Northern Hemisphere, occurring 2 or 3 days after the autumnal equinox). The Sun crosses the celestial equator going southward; it rises exactly due east and sets exactly due west.

The Winter Solstice

Winter inspires both joy and woe. Some people can’t wait for a cooler weather, snow, skiing and roller skating, curling up by the fire, along with the holiday spirit. Other people dislike the frigid temperatures, blizzards, and wild weather.

The word solstice arises from the Latin words for “sun” and “to stand still.” In the Northern Hemisphere, as summer advances to winter, the points beingshown to people there where the Sun rises and sets advance southward everyday; the high reason for the Sun’s daily path across the night sky, which occurs at local noon, also moves southward daily. At winter months solstice, the Sun’s path has reached its southernmost position. The next day, the road will advance northward. However, several days before and following your winter solstice, the modification is so slight the Sun’s path generally seems to stay the same, or stand still. The Sun is directly overhead at “high-noon” on Winter Solstice with the latitude known as the Tropic of Capricorn.

Winter solstice may be the day while using fewest hours of sunlight through the whole year. In the Northern Hemisphere, it happens around December 21 or 22. (In the Southern Hemisphere, it's around June 20 or 21.)

See any local Sun rise and hang times and pay attention to how the changing times change!
Questions and Answers About Winter

Question: Why is there this kind of time lag between your shortest day of year (shortest level of daylight hours) as well as the lowest average daily temperature of year?

Answer: This could be the shortest day of the season, meaning usually the one in which we experience minimal amount of daylight in twenty four hours; it can be also any time when the Sun reaches its southernmost reason for the sky. Although this portion of Earth is cooling, its great thermal mass still retains some heat from summer months and fall. As the gradual cooling process continues in the next 8 weeks, temperatures continues to fall, along with the coldest temperatures will probably be recorded. The same pattern is valid for summer time solstice in June, as 4 seasons’s highest temperatures are recorded later, in July and August.

Question: Was Stonehenge developed to celebrate the cold winter months solstice?

Answer: That’s one theory. Stonehenge was constructed in numerous phases for many centuries. Due to the alignment on the stones, experts acknowledge which the design seems to correspond with all the use with the solstices and even other solar and lunar astronomical events in many fashion. There are several theories why the structure was built, including that this area was adopted as a temple to worship the Sun; as being a royal burial ground; and/or like a type of astronomical observatory. However, because none of such theories is proven correct up to now, the actual reason (or reasons) for Stonehenge remains a mysterious.
Signs of Winter

It is determined by where you are! In some places, snow actually starts to sprinkle down (or dump) on top of the landscape, painting everything white. You notice a peaceful form of silence if you walk through the woods—a muffled sort of quiet. It also mean shoveling, snowblowing, working with bad roads, and quite often unbearable temperatures. For others, the temperatures become very mild and cool, and Florida fills track of people escaping the seriousness of a northern winter.

You can track once the seasons change by recording animal behaviors along with the way that this plants grow. Listen to the modern sounds and observe whatever you hear and pay attention to. For more information visit
Firstdayof.org.