Birdwatch Note Rating
2024-05-01 13:24:52 UTC - HELPFUL
Rated by Participant: 29AB6753B0734820D7618F07D32488D8C69764B00638A356B996FC9DC467D5DD
Participant Details
Original Note:
This is a contrail, they are trails of condensed water vapour created by jet engines. The shadowing is completely normal, Contrail shadows are formed when the contrail crosses in front of the sun, blocking its light and casting a shadow on the cloud layer beneath. https://atoptics.co.uk/blog/contrail-shadows-2/#:~:text=Contrail%20shadows%20are%20a%20fascinating,for%20observers%20on%20the%20ground.
All Note Details