Experts believe that this is called "aircraft cloud"
Formation of aircraft clouds
The exhaust gas discharged by the aircraft engine contains a large amount of water vapor, if the temperature outside the aircraft is very low, the humidity is suitable, the water vapor in the exhaust gas will quickly mix with the surrounding cold air and condense into water droplets, forming an aircraft cloud.
The conditions for forming aircraft clouds: the altitude is generally 7000-11000 meters, the temperature is between -60 °C and 40 °C, and the atmospheric humidity is preferably around 60%.
In addition to giving us a sense of beauty, airplane clouds also have some practical uses, such as forecasting the weather. If the plane clouds are thinner and dissipate quickly, it is a sign of good weather. If the aircraft cloud is very thick and long-lasting, it indicates that there may be heavy rain.
In the evening, caixia is now a dragon
Winding through the clouds
The dragon head plays the golden light at the end
Suspected great wall drifting fairy world
Heaven descends auspiciously in the coming year
The motherland is brilliant Chinese red
