Maximum time characteristics of meteor shower radiation points in the quadrant on June 4, 65438.

Meteor shower has always been regarded as a romantic and beautiful symbol by us. We have heard since childhood that watching meteor showers can make our dreams come true. At the turn of the new year, we will also welcome a special meteor shower-quadrant meteor shower. Let's make a wish for everyone in the new year.

Observation time of meteor shower in quadrant constellation

The longest time of quadrant meteor shower: 20 10 1.4.

Where is the radiation point of meteor shower in quadrant?

On the shepherd's head.

On June 4, 2000, the quadrant meteor shower reached its peak. The ecliptic meteor shower occurs every year from February 28th to 65438+1October 28th, 12. Together with the Perseid meteor shower in August and the Gemini meteor shower in February, it is called three meteors a year. The maximum forecast for the whole year appears at1October 4th 16:20, and ZHRs notes about 120. The radiation point is located above the head of Ophiuchus, rising from the north-northeast direction at about 0 am on June 4, 65438. This year, 65438+ 10 4 has just passed the tenth day of the first lunar month, and the moon has gone west after midnight. The quadrant meteor shower in 2008 brought good observation conditions. The time of this year's maximum cycle predicted by the International Meteor Shower Organization is the most suitable in North America, but it is not good for the observation period in China. There will be intermittent bright meteors in the evening around the peak of this meteor shower, so there is still a chance to watch scattered meteors in the quadrant late at night on the first day of the new year.

Characteristics of annual quadrant meteor shower

The quadrant meteor shower is characterized by high brightness, moderate speed, reddish color, short burst time and high latitude of radiation point.

1, high brightness, reddish.

It means that quadrant meteor shower has a high probability of bright meteor, which is suitable for visual observation and astrophotography.

2. Medium speed.

The average speed of meteors entering the earth's atmosphere is only about 42 km/s, which is similar to the speed of Gemini meteor shower among the three meteors.

3. The outbreak time is short.

The maximum time of the ecliptic meteor shower is often concentrated in the first few hours.

4. The latitude of radiation point is high.

The declination of the quadrant meteor shower radiation point reaches about 50 degrees north latitude, which means that the meteor shower is suitable for observation in many high latitude areas (such as Northeast China).

The origin of meteor shower names in quadrant

Zodiac meteor shower is one of the main meteor showers. In order to avoid confusion with another major meteor shower in 10, the ecliptic meteor shower was named after an abandoned constellation. This is also the only meteor shower named after a nonexistent constellation by the International Astronomical Union. Older astronomy books and periodicals in China mostly use their original names. At present, some China publications still refer to this meteor shower as "Dragon Meteor Shower".

How is the meteor shower formed?

Meteor shower (the flow of one meteor per hour can be called meteor shower) is a special astronomical phenomenon. In this phenomenon, groups of meteors seem to come from a certain point in the sky and fall. This point or a small area in the sky is called the radiation point of meteor shower. The radiation point is a perspective effect. The fundamental cause of meteor shower is the disintegration of comets. Comets are mainly composed of ice and dust. When the comet approaches the sun, the ice will evaporate, causing dust particles to eject from the mother body and enter the orbit of the comet like water in a fountain.

Maximum value and burst of meteor shower

All meteor showers are not only seen at a certain moment, but can often be observed for several days or even a month. But most of the time the flow is very small, and only in a relatively small period of time will there be a large number of meteor showers. At this time, we call this meteor shower a mega meteor shower; The eruption is mainly aimed at some periodic meteor showers. In most years, even when it is very large, their flow is very small, but in some years, there may be a particularly large flow, which is called an outbreak.