When was the last meteor shower in Tangshan in 2009?

The latest meteor shower should be Lyra, in June 14- 16, but the flow is low, even in the peak period, the hourly flow is only about 10. Patience is needed when observing.

In fact, meteor showers are regular. The following is the annual meteor shower table and the meteor shower observed in 2009.

Meteor shower schedule

65438+ October

Meteor shower name: quadrant meteor.

Comet parent: 2003 EH 1

Radiation point: booth

Estimated date: 3rd to 4th.

Description: The flow rate is about 40 per hour, the color is blue, and the speed is relatively fast (about 40 kilometers per second). Brighter ones may cross half the sky, and a small part may even leave trace dust in the sky. There is an obvious peak, which usually lasts only about an hour.

April

Meteor shower name: Lyra meteor shower

Comet matrix: C/ Thatcher

Radiation point: Lyra

Estimated date of occurrence: 2 1 -22.

Summary: Bright and fast (about 48 kilometers per second) will leave traces of tracks in the sky, which will fade after a few seconds.

May

Meteor shower name: Eta Aquarius.

Comet parent: 1C/ halley

Radiant point: Aquarius Eta (Aquarius Eta)

Estimated date: 5th to 6th.

Summary: The density of meteors is high, but the flow rate 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: Lyra meteor shower

Comet matrix: C/ Thatcher

Radiation point: Lyra

Estimated date: 14-16.

Description: The traffic is low, even in the peak period, the hourly traffic is only about 10. Patience is needed when observing.

July

Meteor shower name: Delta Aquarius.

Comet matrix: 1C/ halley

Radiation point: Aquarius Delta (Aquarius Delta)

Estimated date of occurrence: 28-29.

Description: The peak value is about 20, bright yellow, and the medium speed is about 40 kilometers.

Meteor shower name: Capricorn.

Comet matrix: not yet determined

Radiant point: Capricorn

Estimated date of occurrence: 29th-30th.

Description: At the peak, there are about 15 fireballs, which are bright yellow and slow, only about 25 kilometers. The observation height is low.

August

Meteor shower name: Perseid meteor shower

Comet matrix: 109 p/ Swift-tuttle

Radiant point: Perseus

Estimated date: 12-13.

Description: the flow rate is large, and the peak flow rate is about 60 per hour. Low brightness requires patience when observing.

10 month

Meteor shower name: Dragon Head Constellation

Comet matrix: 2 1P/ Giacobini-Sinner

Radiant point: Perseus

Estimated date: 12-13.

Description: The flow rate is low, only about 10 pieces per hour.

Meteor shower name: Orion.

Comet matrix: 1P/ halley

Radiation point: Oruon.

Estimated date of occurrence: 2 1 -22.

Description: The flow rate of Orion meteor shower is about 20 per hour, yellow or green in color, and the speed is about 66 kilometers per second. There are fireballs.

1 1 month

Meteor shower name: Leonid meteor shower

Comet Matrix: 55p/ Temple-tuttle

Radiant point: Leo

Estimated date: 17-18.

Description: 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 meteor shower.

Mother: 3200 Phaeton

Radiant point: Gemini

Estimated date: 13-14.

Description: The most stable and colorful meteor shower in a year, of which about 65% is white, 26% is yellow, and others are blue, red and green. 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.

Ursa meteor shower

Official name: URS, meteor shower in Ursa minor.

Activity time: 65438+February 65438+July-26th.

Maximum time: 65438+February 22/23.

Maximum flow (ZHR): 10

R value: 3.0

Average speed (without gravity): 33km/s.

Maximum center: 348 degrees right ascension and 75 degrees declination.

20 degrees north latitude (Nanning, Guangzhou, Haikou): It can be observed all night, preferably in the morning.

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 declination 156 declination +64 (30-40 N)

Four Heavy Rainstorms Suitable for Observation in 2009

1 quadrant meteor shower (65438+1October 3)

As Tianyu's first performance dedicated to the public in 2009, the maximum value of quadrant meteor shower will appear around165438+2 1 on October 3rd, Beijing time. Although the maximum value of the forecast is difficult to see in China, the observation conditions in the latter half of the night are still very good.

Perseid meteor shower (8 12)

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 1 1 to the early morning of the next day, it will present a wonderful 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.

3 Leonid meteor shower (165438+ 10/8)

According to the recent prediction of international astronomers, there will be a strong Leonid meteor shower in 2009. This prediction broke the saying that "Leonid meteor shower is in a quiet period" for several years. The peak of Leonid meteor shower will appear at 5: 43 Beijing time (165438+10/8) (it may be delayed by 30-60 minutes). By then, the maximum flow per hour will be about 500, which is the "second-class rainstorm level". The public can observe the meteor shower at 18 from 2 am to dawn.

4 Gemini meteor shower (65438+February 7th-65438+February 65438+July)

Just like China's New Year movies, the Gemini meteor shower usually arrives as scheduled at the end of the year, and the "release schedule" will last from 65438+February 7th to17th. In 2009, the Gemini meteor shower will reach its peak in the early morning of 15, and the maximum number of theoretical meteors per hour can reach 120. Gemini meteor shower is very suitable for observation, not only the meteor is slow, but also the bright meteor will leave a white trail.