| ID | #1647259719 |
| Added | Mon, 14/03/2022 |
| Author | July N. |
| Sources | |
| Phenomena | |
| Status | Result
|
| Resume |
Initial data
This circle appeared in the evening sky over Beijing, China. Three days ago, an eyewitness posted a photo on reddit.com and asked what it could be.
Hypotheses
Light sources on clouds
Lasers, searchlights, car headlights and other light sources of sufficient power can form a column of light in a dusty or foggy atmosphere, various patterns on low clouds, fog or haze. Also, the rays can highlight parts of the cloud, objects or birds, giving them bizarre shapes.
Searchlights can shine with one beam, several. They can be stationary, move, and also form spinning carousels on the clouds, which can change shape and color.
It often seems that the light source is located at the point where the beam hits the cloud, and not vice versa.
Investigation
Based on the appearance, this is a reflection of the spotlight beam on low clouds.
The comments indicate that this is a reflection of the light show of the Bird's Nest stadium:
Resume
Light sources on clouds
Lasers, searchlights, car headlights and other light sources of sufficient power can form a column of light in a dusty or foggy atmosphere, various patterns on low clouds, fog or haze. Also, the rays can highlight parts of the cloud, objects or birds, giving them bizarre shapes.
Searchlights can shine with one beam, several. They can be stationary, move, and also form spinning carousels on the clouds, which can change shape and color.
It often seems that the light source is located at the point where the beam hits the cloud, and not vice versa.
Similar facts
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