
The night sky this week
will usher in the release of many "sky-eye videos"
The most noteworthy is that on October 21,
reached a huge Orion meteor shower
In addition, The second crescent moon appeared in

Xuanyuan 14th lunar month
1 October night sky
will usher in the visit of Orion meteor shower
October 21st to 22nd
is the great date of this meteor shower .
Beijing Planetarium experts introduced that among the many meteor showers of large and small in the year, the Orion meteor shower is not big or small in terms of traffic, and is considered a meteor shower with medium traffic. The Orion meteor shower has a very fast meteor, which can reach 66 kilometers per second, which is easier to distinguish.
The active period of Orion meteor shower is very long, starting from October 2 and continuing until early November every year. Meteors belonging to this meteor group may appear in more than a month. Around to October 21, the flow of the Orion meteor shower reached a huge amount, and the maximum zenith flow is expected to be above 20 per hour. The radiation point of the meteor shower is located between Orion and Gemini . It only rises from the eastern horizon after 10 o'clock in the evening, and gradually rises in the second half of the night. It is located directly south before dawn, with the highest horizon. Therefore, the Orion meteor shower is suitable for observation in the middle of the night.
observations are not necessarily limited to October 21, and you can observe them in the days before and after
, and in the sunny weather.
htmlOctober 21 is the 26th day of the ninth lunar month. The moon is in Leo, which is a waning moon. The moonlight is darker and has little interference with the observation of meteor showers.
Beijing astronomical photography enthusiast Lu Shupei photographed Orion meteor shower in Inner Mongolia Autonomous Region on October 22, 2017
Friends who love astronomy,
Are you ready for a telescope?
Xiaofang is ready to make a wish!

END
Source: Beijing Daily, Beijing Planetarium
Editor: lady w
Click to share