Tag Archives: astronomy

First Day of Winter/Winter Solstice

 

Today is the first day of winter and the Winter Solstice. It is the shortest day for the Northern Hemisphere. The Winter Solstice usually falls between December 20-23 and the sun is directly overhead the Tropic of Capricorn resulting in the North Pole being tilted the furthest away. The result is shorter days for sunlight for the Northern Hemisphere. And the further north you are (like Alaska or Scandinavian countries) means less sun during the day. The reverse happens in the Southern Hemisphere as the sun is closer to them and they celebrate the Summer Solstice. Those closer to the South Pole can have nearly 24 hours of sun during this time of year.

Winter Solstice seen from space.
NASA

Many cultures observed the Winter Solstice as it marked an important time in the agricultural cycle. By this time all crops and livestock had been prepared for winter. Important foodstuffs were stored for the months when virtually nothing grew. Wine and beer, which had been fermenting during the year, was ready at this time. Cattle and pigs would often be killed at the start of winter so they would not have to be fed during this time. The early months of winter were tough in many places and often called the “famine months” since little food was to be found. Many cultures observed the Winter Solstice as a renewal or that the year was reborn. For out of the seeming withdrawal of the sun, it would come back just as strong and powerful as before. Thus the Winter Solstice was seen by many as the start of a new year such as the old Roman Feast of the Unconquered Sun (Sol Invictus) which happened around the 25th of December.

Welcome Summer

The sun rising over Stonehenge on summer solstice(2005) Photo:Andrew Dunn (Wikimedia)
The sun rising over Stonehenge on summer solstice(2005)
Photo:Andrew Dunn (Wikimedia)

Today is the Summer Solstice in the Northern Hemisphere. For those below the equatorial line, it is the Winter Solstice. The June Solstice usually takes place between June 20-22. For those in the Northern Hemisphere, it usually is the longest day of sunlight as the North Pole tilts directly towards the sun. Which translates into more sunlight particularly the further north you live. For those more closer to the North Pole (Alaska, parts of Canada, and Scandinavian countries)the sun literally never sets during this time of year. Of course the reverse is true in the Southern Hemisphere. They get less sunlight on the June Solstice and the closer you are to the Antarctic Circle means less sunlight or total night.

The coming of summer is usually a time for celebration in many cultures. Festivals in Northern Europe celebrate summer and the fertility of the Earth. Bonfires are lit and homes are decorated to mark the festival. Many cultures honor the sun in some fashion. Modern day pagans and druids also celebrate the day with their own festivals and many go to Stonehenge in England to witness the first rays of summer.

This year summer has arrived very hot for California, Arizona, and New Mexico . The heat has been so intense that sidewalks have buckled in some areas and the power grid has been deeply hit as people race to turn on fans and air conditioning.

Summer Solstice

The sun rising over Stonehenge on summer solstice(2005) Photo:Andrew Dunn (Wikimedia)
The sun rising over Stonehenge on summer solstice(2005)
Photo:Andrew Dunn (Wikimedia)

Today is the Summer Solstice in the Northern Hemisphere. For those below the equatorial line, it is the Winter Solstice. The June Solstice usually takes place between June 20-22. For those in the Northern Hemisphere, it usually is the longest day of sunlight as the North Pole tilts directly towards the sun. Which translates into more sunlight particularly the further north you live. For those more closer to the North Pole (Alaska, parts of Canada, and Scandinavian countries)the sun literally never sets during this time of year. Of course the reverse is true in the Southern Hemisphere. They get less sunlight on the June Solstice and the closer you are to the Antarctic Circle means less sunlight or total night.

The coming of summer is usually a time for celebration in many cultures. Festivals in Northern Europe celebrate summer and the fertility of the Earth. Bonfires are lit and homes are decorated to mark the festival. Many cultures honor the sun in some fashion. Modern day pagans and druids also celebrate the day with their own festivals and many go to Stonehenge in England to witness the first rays of summer.

Today is the Winter Solstice

The shortest day of the year for the Northern Hemisphere is the Winter Solstice. On the solstice (usually between December 20-23)the sun is directly overhead the Tropic of Capricorn resulting in the North Pole being tilted the furthest away. This result in shorter days for sunlight in the Northern Hemisphere (and the further north you are the less sun you will see like those in Alaska or the Scandinavian countries). The reverse is true in the Southern Hemisphere. As the sun is closer to them, they celebrate the Summer Solstice. Those who live close to the South Pole will see Midnight Sun meaning they get 24 hours of sun during this time of year.

Many cultures observed the Winter Solstice because it marked an important time in the agricultural cycle. By this time all the crops and livestock had been prepared for winter. Important foodstuffs were stored for the months when virtually nothing grew. Wine and beer, which had been fermenting during the year, was ready at this time. Cattle and pigs would often be killed at the start of winter so they would not have to be fed during this time. The early months of winter were tough in many places and often called the “famine months” since little food was to be found. Many cultures observed the Winter Solstice as a renewal or that the year was reborn. For out of the seeming withdrawal of the sun, it would come back just as strong and powerful as before. Thus the Winter Solstice was seen by many as the start of a new year such as the old Roman feast of the Unconquered Sun (Sol Invictus) which happened around the 25th of December.

Today the solstice will be at 22 Dec 2015 @04:49 UTC, which is 23:48 (11:49 p.m.) in New York on 21 Dec 2015, 22:49 (10:49 p.m.) in Chicago, 21:49)9:49 p.m.) in Denver, 20:49 (8:49 p.m.) in San Francisco, 19:49 (7:49 p.m.)in Anchorage, and 18:49 (6:49 p.m.) in Hawaii.

Solstices and Equinoxes Image: NASA


Today is the Winter Solstice

The shortest day of the year for the Northern Hemisphere is the Winter Solstice. On the solstice (usually between December 20-23)the sun is directly overhead the Tropic of Capricorn resulting in the North Pole being tilted the furthest away. This result in shorter days for sunlight in the Northern Hemisphere (and the further north you are the less sun you will see like those in Alaska or the Scandinavian countries). The reverse is true in the Southern Hemisphere. As the sun is closer to them, they celebrate the Summer Solstice. Those who live close to the South Pole will see Midnight Sun meaning they get 24 hours of sun during this time of year.

Many cultures observed the Winter Solstice because it marked an important time in the agricultural cycle. By this time all the crops and livestock had been prepared for winter. Important foodstuffs were stored for the months when virtually nothing grew. Wine and beer, which had been fermenting during the year, was ready at this time. Cattle and pigs would often be killed at the start of winter so they would not have to be fed during this time. The early months of winter were tough in many places and often called the “famine months” since little food was to be found. Many cultures observed the Winter Solstice as a renewal or that the year was reborn. For out of the seeming withdrawal of the sun, it would come back just as strong and powerful as before. Thus the Winter Solstice was seen by many as the start of a new year such as the old Roman feast of the Unconquered Sun (Sol Invictus) which happened around the 25th of December.

Today the solstice will be at 23:03 (11:03p.m.) Universal Time Clock(UTC) which is 18:03 (6:03 p.m.) in New York,  17:03 (5:03 p.m.) in Chicago, 16:03 (4:03 p.m.) in Denver, 15:03 (3:03 p.m.) in San Francisco, 14:03 (2:03 p.m.)in Anchorage, and 13:03 (1:03 p.m.) in Hawaii. Thus the first full day of winter is 22 Dec 2014.

Solstices and Equinoxes Image: NASA
Solstices and Equinoxes
Image: NASA

Welcome To Summer

Today is the first day of Summer in the northern hemisphere. For those below the equator, it is the Winter solstice. The Summer solstice day has the longest hours of daylight (above the equator that is). In some places, such as in the Arctic Circle, they get the “midnight sun” during the night. Those who live closer to the Antarctic Circle will not see the sun at all during this time of year. However if you live near the equator, the sun neither shifts up or down so day length does not vary much.

The sun rising over Stonehenge on summer solstice(2005) Photo:Andrew Dunn (Wikimedia)
The sun rising over Stonehenge on summer solstice(2005).
Photo:Andrew Dunn (Wikimedia)