Perseid meteor shower can be said to be one of the most famous meteor showers. It is not only rich, but also almost never misses the starry sky in summer. It appears stably at a fixed time every year, and is the most active and frequently observed meteor shower, ranking first among the three periodic meteor showers in the whole year. From the evening of August 12, 2009 to the early morning of the next day, the Perseid meteor shower will present a gorgeous summer night starry drama for the public, and people can see the beautiful scene of meteors streaking across the sky with the naked eye. Its peak value is about 60 meteors per hour. It can be seen all over the country. As long as it is a clear night, the meteor shower schedule in 2009 is 65438+1October. Name of meteor shower: Quadrantids meteor shower group (comet mother: 2003 EH 1 radiation point: Bootes). Estimated date: 3-4. Overview: the hourly flow is about 40, the color is blue, and the speed is relatively fast. April meteor shower name: Lyra comet parent body: C/Thatcher radiation point: Lyra estimated date: 2 1 -22 Overview: bright and fast (about 48 kilometers per second), it will leave traces in the sky, and it will fade after a few seconds. May Meteor Shower Name: Eta Aquarius Comet Mother: 1C/ Harley Radiation Point: Eta (Aquarius Eta Aquarius) Estimated date: May 5 -6 Overview: Meteor density is high, but the flow is not very stable (the lowest is only a few dozen, and the highest may reach several hundred per hour). The equator and the southern hemisphere can be observed within a few hours before dawn, and the north is not conducive to observation. Many groups of meteors will leave long tracks in the sky. June Meteor Shower Name: Comet Mother Lyra: C/Thatcher Radiation Point: Lyra Estimated Date: 14-16 Description: The flow rate is low, even in the peak period, the hourly flow rate is only about 10. Patience is needed when observing. July Meteor Shower Name: Delta Aquarius Comet Mother: 1C/ Harley Radiation Point: Aquarius Delta Estimated Date: 28th-29th Overview Description: There are about 20 meteors in the peak period, which are bright yellow and have a medium speed of about 40km. Meteor shower name: Capricornids Comet Mother: Radiation point has not yet been determined: Capricorn estimated date: 29th-30th. Description: The peak value is about 15 meteors, and the fireball is bright yellow with a slow speed of only about 25km. The observation height is low. August meteor shower name: Perseid meteor shower, comet parent body: 109P/Swift-Tuttle radiation point: Perseid, expected date: 12-13, general description: large flow, with peak flow of about 60 per hour. Low brightness requires patience when observing. 65438+ 10 Month Meteor Shower Name: Dragon Comet Mother: 2 1P/ Giacobini-Sinna Radiation Point: Perseus Estimated Date: 12-13 Overview: The flow rate is low, and the hourly flow rate is only 65438. Meteor shower name: Orion meteor shower group (comet parent body: 1P/ Harley radiation point: Orion estimated date: 2 1 -22 General description: The flow of Orion meteor shower is about 20 per hour, the color is yellow or green, and the speed is very fast, about 66 kilometers per second. There are fireballs. 165438+ October Meteor Shower Name: Leonid Meteor Shower Comet Mother: 55P/Tempel-Tuttle Radiation Point: Expected date of Leo: 17-18 Overview: Leonid Meteor Shower has a peak flow every 33 years, and the peak flow can reach hundreds per hour. The next peak will be about 30 years later. Although it is not the peak time, we can still see some sporadic meteors crossing the sky. 65438+ February Meteor Shower Name: Gemini Mother: 3200 Phaeton (Planet) Radiation Point: Gemini Estimated Date: 13-14 Description: The most stable and colorful meteor shower in a year, about 65% is white and 25% is yellow. Gemini meteor shower is the only meteor shower that is not the mother of comet. Its mother is the asteroid 3200 Phaeton. At peak hours, the hourly flow can reach hundreds. Official name of URS Activity time: 65438+February 65438+July-26th Maximum time: 65438+February 22nd/23rd Maximum discharge (ZHR): 10r Value: 3.0 Average speed (without gravitational influence): 33km. 30 degrees north latitude (Lhasa, Chengdu, Chongqing, Wuhan, Hangzhou, Nanjing, Shanghai): It can be observed all night, and it is best in the morning. 40 degrees north latitude (Beijing, Hohhot, Dalian): It can be observed all night. 50 degrees north latitude (Tacheng, Harbin): It can be observed all night. The center of the telescope field of view: right ascension 348 declination+75, right ascension13/kloc-0 declination+66 (latitude >); +40) Right ascension 063 declination +84 right ascension 156 declination +64 (latitude 30-40) 1. Leonid meteor shower Leonid meteor shower is held every year from 1 14 to 265438. Generally speaking, the number of meteors is about 10 to 15 per hour, but the Leonid meteor shower has a peak every 33 to 34 years, and the number of meteors can exceed several thousand per hour. This phenomenon is related to the period of Comet templeton Tuttle. When a meteor shower occurs, it seems that the meteor will shoot from a specific point in the sky, which is called the "radiant point", named after the radiant point of the Leonid meteor shower is located in Leo. 2. Gemini meteor shower Gemini meteor shower appears from 13 to 14 every year, and the maximum hourly flow can reach 120, and the maximum flow lasts for a long time. Gemini meteor shower originated from 1983 TB asteroid and was discovered by IRAS satellite in 1983. Scientists judged that this may be the remains of a "burned" comet. Gemini meteor shower radiation point is located in Gemini, which is a famous meteor shower. 3. Perseid meteor shower Perseid meteor shower appears regularly from July 17 to August 24 every year. It is not only rich, but also almost never absent from the summer sky. It is the most suitable meteor shower for non-professional meteor observers, ranking first among the three periodic meteor showers in the whole year. Comet Swift-Tuttle is the mother of Perseid meteor shower. 1992 around the perihelion of the comet, the Perseid meteor shower shone brilliantly, and the number of meteors reached more than 400 per hour. 4. Orion meteor shower There are two kinds of Orion meteor shower, and the meteor shower whose radiation point is near Betelgeuse usually appears around165438+1October 20th; The meteor shower with radiation point near ν occurred from June 65438+1October 15 to June 65438+1October 30, and the maximum day was June 65438+1October 2 1 day. We often say that the Orion meteor shower is the latter, which is caused by the famous Halley's comet. Halley's comet will return to the core of the solar system every 76 years, scattering debris in the orbit of the comet. 5. Taurus meteor shower Taurus meteor shower appears every year from1October 25th 10 to1October 25th 10. Generally, the maximum day is1October 8110. Debris in the orbit of Comet Enke forms a meteor shower. On the biggest day, five meteors can be observed flying by every hour on average. Although its flow is small, its period is stable. 6. Draco meteor shower The Draco meteor shower occurs from June 6th to June 6th 10 every year, and the maximum day is June 8th 10. This meteor shower is one of the three periodic meteor showers in the whole year, with the maximum hourly discharge of 120, and its maximum day is generally close to the new moon, which is less affected by moonlight and provides good observation conditions for observers. Comet Giacobini-Sinner is the origin of the Draco meteor shower. 7. Lyra meteor shower Lyra meteor shower usually appears from April 19 to 23 every year, and the 22 nd is usually the maximum day. This meteor shower is the earliest recorded meteor shower in China, and its outbreak in 687 BC is vividly recorded in the ancient book Spring and Autumn Annals. The orbital debris of comet 186 1 I formed the Lyra meteor shower, which, as one of the three periodic meteor showers in the whole year, also occupies an extremely important position in astronomy! The article you are reading comes from Linfen Jiayuan network community/,with the original address: /viewthread.php? tid=20542
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