Modern Express News (Reporter Aria/Text Zhao Jie/Photo) In the past two days, beautiful pictures and videos of Gemini meteor showers have been flooding the screen on various social network platforms. However, don’t be sad if you miss this meteor shower. The five-month of the year, the "minimum full moon" of the year, the Ursa meteor shower... According to the forecast of the Purple Mountain Observatory of the Chinese Academy of Sciences, there is a large wave of wonderful astronomical phenomena that will beautify the night sky.
展开剩余89%Many "Star and Moon Fairy Tales" are staged, enjoyable to the naked eye
The sky in December is very lively, and the moon and stars will take turns to perform romantic "star and moon fairy tales", including the five-combination moon of the Hinasu, the three-combination moon of the Beihe, the one-combination moon of the Kok Sui, and the one-combination moon of the Kok Sui. The so-called "combination" refers to the closest distance between two celestial bodies. When these stars merge into the moon, the naked eye can see the shining stars accompanying the "moon girl".
On December 18, the beautiful celestial phenomena of the "companiment" moon in Bisuwu will appear in the sky. At that time, if the weather is sunny, the interested public can enjoy the scene of the "red giant" following the "moon girl" walking through the sky with the naked eye or with the help of binoculars.
Hinasubu is the main star of Taurus, which is orange-red and is one of the brightest stars in the sky that can be seen with the naked eye. Source: 7r8.hgko.sc.cn, 65 light years away from the earth. Therefore, the five-combination moon of Bisu can be said to be the stars and moons that complement each other.
If you miss the Five Month of the Dayu, don’t regret it. On the evening of December 21, the moon will meet Beihe San, and the "Beihe Sanhe Sanhe Moon" will come. Beihe 3 is a star located in Gemini, and is also one of the 21 bright stars in the night sky. Another star in the same constellation Beihe 2 is also very famous. When observing with binocular mirrors, the orange of Beihe III and the blue of Beihe II are in sharp contrast, which is very bright.
That night, after the moon emerged, looking towards the eastern sky, the three bright celestial bodies of Beihe 2, Beihe 3 and Daotu Moon at the head of Gemini were embedded in the sky like gems. They flickered and shone brightly, visible all night.
Next, on December 28, blue superstar Kaei Yasui also came to meet Moon and staged Kaei Yasui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yui Yu Jiao Suyi is 250 light-years away from the earth. It is viewed in the southeast sky in the early morning of December 28 or 29, and it can be seen that it is attached to the moon.
On December 19, the annual "minimum full moon" appeared in the night sky
On December 19, the "Littleest Full Moon" of this year will appear in the night sky. At that time, if the weather is sunny, our public will enjoy a "petty and charming" moon.
Astronomical experts introduced that a full moon is also called looking at the moon, which means that the ecliptic longitudes of the moon and the sun are 180 degrees apart. At this time, looking from the earth, the moon is the roundest. The full moon appears on average once every 29.5306 days, and its cycle is the same as that of the synodic moon. The full moon can appear on any day of the 14th, 15th, 16th and 17th lunar calendar.
Since the orbit of the moon around the earth is elliptical, once a month the moon is closest to the earth (peripheral moon) and farthest (peripheral moon). When the time of the farthest farthest moon in the year is close to the time of the full moon, it is the "minimum full moon" of the year, otherwise it is the "maximum full moon" of the year, commonly known as the "super moon".
This year's "largest full moon" occurred on May 26, which is larger and fuller than usual. The distance between the earth and the moon was only 357,461 kilometers that night. Compared with the "maximum full moon", when this "minimum full moon" occurred, the moon was about 405,934 kilometers away from the earth. A reporter from Modern Express learned that without reference objects, the difference between the "maximum full moon" and the "minimum full moon" is actually difficult to distinguish by the naked eye.
Source on December 22: 228.hgko.sc.cn, the last meteor shower of this year will be on the stage
December is about to end, and the curtain of the 2021 Astronomy Theater will also slowly fall. The curtain call is for the great Ursa meteor shower on December 22.
Ursus meteor shower is a small meteor shower that occurs regularly every year: 272.hgko.sc.cn, which is the last meteor shower of the year. The week from December 18 to December 24 is an activity period. It is reported that in 2006, 2007 and 2008, the meteor shower had an explosion of about 30 per hour for three consecutive years. In earlier 1945 and 1986 source: w7e.hgko.sc.cn, it also experienced an explosion of about 50 more traffic per hour.
A reporter from Modern Express learned that there is no expectation of an outbreak of Ursa meteor shower this year, and it is highly likely to occur at 23:00 on December 22, with about 10 meteors per hour.
Although it cannot be compared with the high-flow Gemini meteor shower, the Ursa meteor shower is relatively stable and worth observing. It is worth reminding that meteor showers can be observed with the naked eye. When observing, you must choose areas with weak lights and wide views. In addition, due to the cold weather and the temperature is low, you should pay attention to keeping cold and warm when observing outdoors.
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