What are the main features and observation items of Perseid meteor shower?

Let's take a look at the main features and observation items of Perseid meteor shower. The brightness of meteors is generally second-class or above, similar to the Big Dipper, and occasionally colored fireballs appear, and the brightness is almost the same as that of Venus. Because there are many bright meteors, even in urban areas with serious light damage, sometimes many meteors can be seen.

The main feature is that at most 30-60 meteors can appear in an hour, which is the biggest active period in a year. A few days before and after the climax, more than 10 per hour. Because it is summer vacation and the temperature is relatively high at night, it is called one of the most easily observed meteor showers. The brightness of meteors is generally second-class or above, similar to the Big Dipper, and occasionally colored fireballs appear, and the brightness is almost the same as that of Venus. Because there are many bright meteors, even in urban areas with serious light damage, sometimes many meteors can be seen. In the ideal observation area, you may even see nearly a thousand meteors all night. Perseid meteor shower is a high-speed meteor shower with a speed of 59 km/s, of which 45% has a wake. Moreover, it may light up in the middle of the passage, which is easy to form meteor marks.

The parent object is comet Swift Tuttle with a period of 133. This comet was discovered by luis Swift and tuttle in 1862, and then Italian astronomer GiovanniSchiaparelli suggested that it might be the mother of Perseid meteor shower. This is also the first time to confirm that comets are the mother of meteor showers. At that time, comet Swift Tuttle was predicted to return periodically around 1982, but it was not observed. The Perseid meteor shower in 199 1 and 1992 was more than twice as large as that in previous years, so it is speculated that the mother comet will also return. On September 27th of that year, Japanese comet expert Kazuhiko Kimuchi discovered comet Swift Tuttle again. In order to commemorate his achievements, the name of this comet was also changed to Swift Tuttle Comet Munei Comet Comet Swift-Tuttle/KOOC-0/992 returned, and the Perseid meteor shower broke out at/KOOC-0/99/KOOC-0/and/KOOC-0/992, reaching 400 per hour. After that, the annual flow decreases.

In the observation project 1, safety issues are the first, including traffic safety and safety during observation. Resolutely don't burn the midnight oil, don't drive fatigue, arrive at the observation site during the day and find out the surrounding environment. Try to choose a farmhouse far away from water, roads and railways. 2, pay attention to rest, watch the meteor shower can sit down to reduce fatigue, chairs and moisture-proof mats are necessities. At the same time, it is necessary to supplement nutrition in time. 3. The better observation place is a place far away from the light pollution area of the city and at a higher altitude. Because the city lights will block the light of the meteor shower. 4. Meteor observation can be done with naked eyes, and the visible area of the telescope is too small to be suitable for meteor observation.

Singularity constellation network, an encyclopedia of constellation knowledge that many girls will pay attention to. Eight-character marriage, eight-character career, marriage fortune, constellation of wealth, emotional combination, seeing the other half, eight-character calculation, name speed matching, life fortune, compound opportunity, you can also consult the singularity constellation online at the bottom.