Possible Example of Airplane Trails

by TED91 moderator
Three parallel artifacts. What are they? Damage of the original photographic plates?
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by TED91 moderator
Here is another example: AWI0000f70
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by lrebull scientist, translator, admin
My bet is maybe plane. One light for each wing! Had several of these in my thesis data. Would be useful to do the math as to the angular separation of the two streaks and how far apart a typical plane's wingspan would appear at 40,000 feet.
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by jdebes scientist, admin
A 747's wingspan is 211ft, which would subtend ~18 arcminutes at 40,000 feet. If I did my trig correctly, and that's about what the one image looks like, maybe closer to 10 arcminutes.
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by TED91 moderator
http://talk.diskdetective.org/#/subjects/AWI00006bt  Probably another example
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by TED91 moderator
There is another example: AWI00004uf
http://i1319.photobucket.com/albums/t662/Ted_91/Disk Detective/ImageAWI00004uf_zpsb1462955.jpg
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