On February 19, this year, the Lantern Festival will encounter the super moon. All parts of China and even Asia and Oceania can enjoy the biggest and roundest full moon this year. For astronomers, this year's Lantern Festival is more meaningful.
"On this year's new year's Eve, the moon and the lights are still there." February 19 is the Lantern Festival of the year of 1911. During the festival, the second 'super moon' of the year will appear in the sky, and it is also the 'largest full moon' of the year. A full moon is more festive.
This year's' biggest full moon 'lights up the Lantern Festival
"Super moon" is a common astronomical phenomenon. Its exact name in astronomy is "near the moon".
Hu Fanghao, director of science popularization at Zijinshan Observatory, Chinese Academy of Sciences, said in an interview that the orbit of the moon is elliptical. The farthest point in the ellipse is called apogee, and the nearest point is perigee. "Super moon refers to the full moon in perigee. Theoretically, it is about 14% larger than the full moon in apogee, and about 30% brighter. But generally, the difference in size cannot be seen by the naked eye. '
Super moon happens every year, sometimes more than once. This year, the "super moon" will be on the sky three times in a row, on January 21, February 19 and March 21, respectively.
The full moon on February 19th, which is also the largest visual diameter of the 12 full moons this year, is the 'largest full moon' this year.
The best observation time of the day is around 23:54
When the moon and the sun are on both sides of the earth, and the Yellow longitude of the moon and the sun is 180 degrees apart, from the earth, the moon at this time is the most round, which is called 'full moon', also known as' hope '.
In fact, the full moon may appear on the fourteenth, 15th, 16th or even 17th of each month in the lunar calendar, so it is often said that the moon is 16 yuan on the 15th, and this year's Lantern Festival happens to be 15 yuan on the 15th.
According to the astronomical accurate calculation, the distance of the moon passing through the perigee at 17:3 on February 19 is only 356800 kilometers, which is the closest moment of the moon to the earth in the whole year. At this time, the apparent diameter of the moon is the largest. At 23:54, the moon appeared to be 'round'.
It is understood that the "super moon" appearing in the sky on the Lantern Festival can be seen in China. In the eastern part of China, at around 18:30 p.m. on the night of the Lantern Festival, the public can find a place with wide vision, waiting for the appearance of the "bright moon in the sky". The best observation time of the day is around 23:54.
At that time, the festival meets the bright moon, which will further set off the festival atmosphere.
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On the Lantern Festival
According to the analysis of the latest meteorological data, the night weather of the Lantern Festival on Tuesday is mainly sunny, with the "pick the clouds and see the moon" available.
The meteorological department said that although it began to warm up this week, the lowest temperature at night is still below freezing point. Everyone should pay attention to keeping warm when watching the moon and taking photos outdoors.
What is a full moon?
When the moon and the sun are on both sides of the earth, and the Yellow longitude of the moon and the sun is 180 degrees apart, from the earth, the moon at this time is the most round, which is called 'full moon', also known as' hope '.
The number of full moons in the 21st century
The number of full moons in the 21st century is 1241
The number of times appearing on the 17th, 16th, 15th and 14th of the lunar calendar is 188, 579, 468 and 6 times respectively
There are 38 full moons in the Lantern Festival
What is' super moon '?
"Super moon" is a common astronomical phenomenon. Its exact name in astronomy is "near the moon".
The orbit of the moon is elliptical. The farthest point in the ellipse is called apogee, and the nearest point is perigee. A supermoon is a full moon in perigee, which theoretically looks about 14% larger and 30% brighter than a full moon in apogee.
How to enjoy the super Lantern Festival?
In the eastern part of China, at about 18:30 on the day of Lantern Festival, shortly after the rising of the moon, the public can find a place with wide vision, waiting for the appearance of the beautiful scenery of "bright moon shining in the sky".
The most round time of the Lantern Festival in 2019 appears at 1523:54 on the first month. At this time, near midnight, the Lantern Festival just rises to the highest position in the south.