What is it?
Taken by Dennis Mammana on May 21, 2017 @
Borrego Springs, California, USA
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: Unavailable
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Details:
Around midnight on May 20/21, a very faint vertical "cloud" appeared in the eastern sky and, upon photographing it, this is what appeared. Over a sequence of images it changed its shape slightly and drifted toward the north.
Certainly not "Steve"... the mysterious auroral feature seen from high northerly latitudes, and likely not a weather phenomenon (such as dust devil), satellite fuel dump or jet vapor trail. Or is it?
My first thought was that it might be a persistent train left behind by a massively bright fireball, but I've seen no reports of one. Any ideas?
Photo details: Nikon D750, AF-S Nikkor 14-24 f/2.8G ED lens at 24mm, ISO 2500, 15 sec at f/2.8
Photographer's website:
http://www.dennismammana.com
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