Source: Xinhua Daily Telegraph
At about 20:00 on October 21, the Orion meteor shower brought to Earth by the famous Halley Comet will usher in a maximum, with a maximum ZHR of about 20, that is, under ideal observation conditions, when the radiation point is located directly above the head, about 20 meteors can be seen every hour, and the "rainfall" is small.
Wang Kechao, head of science popularization at the Purple Mountain Observatory of the Chinese Academy of Sciences, said that this year's observation conditions are poor, when the radiation point has not yet risen, and affected by the moonlight of the full moon, the number of meteors that can actually be seen per hour will be less than the forecast number. "The days leading up to and after the Orion meteor shower maximum will present several peak periods during which the public can try to observe."
The Orion Meteor Shower is a small to medium-sized meteor shower that occurs regularly every year, and the event date is between October 2 and November 7 of each year. In the case of a meteor shower "rainfall" is small and the observation conditions are poor, it is more important to choose the correct "observation posture".
Wang Kechao suggested that it is necessary to choose a safe observation place with clear weather, little light impact, and open field of view. "It's a bit difficult to see shooting stars on the balcony at home, and city lights and tall buildings can obscure shooting stars. Specifically, it can be viewed in the suburbs away from the bright lights. ”
Wang Kechao said that seeing the meteor shower does not require the help of professional equipment and can be viewed with the naked eye. Meteor showers have "their own ideas" and can appear anywhere in the sky, requiring a wide field of view to capture meteors from different directions. If viewed with the help of an instrument, the field of view is small, and it is easier to miss them. Therefore, it is recommended to prepare a cushion or recliner, choose the most comfortable position to lie down, and let your eyes be full of stars and seas. This allows for a wide view and a comfortable view of the meteor shower.
In addition, meteors appear randomly. If you want to wait for a beautiful picture to amaze the circle of friends, remember to keep the camera in the state of boot shooting, and set the camera exposure time to about 5 seconds, adjust the goodwill luminosity, the focus is to shoot continuously.
Reporters: Qiu Bingqing, Zhu Xiao