Ghost plane?

[aganito]

Guys, I don't know if I'm blind but here I see 4 plane's shadows but only 3 planes...please correct me if I'm wrong...

[Pauwelke]

Maybe it's because of the delay on the pictures? I don't know :s

[Tom Baldwin]

Guys, I don't know if I'm blind but here I see 4 plane's shadows but only 3 planes...please correct me if I'm wrong...
Some discussion here:
http://www.googleearthhacks.com/forums/showthread.php?t=5952&highlight=frankfurt