Aurora Mystery
Taken by John Ashley on October 7, 2018 @ West Glacier, Montana
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  Camera Used: NIKON CORPORATION NIKON D750
Exposure Time: 15/1
Aperture: f/2.0
ISO: 3200
Date Taken: 2018:10:10 18:30:31
 
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Details:
In my timelapse images of northern lights Sunday night there is an odd, white blob that appears to move from near center frame to the left edge in just under 3 minutes real time, just after the aurora started. Anyone have any ideas what this might be? Nikon D750 with 24mm Rokinon lens, consecutive 15-second exposures with 2-second delay between frames.

I cant entirely rule out a light leak from the camera viewfinder, but I dont think thats it. I dont often block the viewfinder at night, but I only turn my headlamp on when necessary, and I make a point of not shining my headlamp towards the cameras. I was tending a southward camera at the time so I wasnt looking north when these frames were recorded, unfortunately.

There is actually a larger but dimmer blob that immediately preceded this one. You can see both on the timelapse video on my business FB page at: https://www.facebook.com/JohnAshleyFineArt/?__tn__=kCH-R&eid=ARC7KRw1837jW3zx_n6DLhzE3WsGbdAZkDCyUz0LaJmSyNujnpQ-jqd1byirjOJchBLunt5Or0A-6d5J&hc_ref=ARSPfJdp4XtUHPIRv-xnH9MNW6L6XRraPIm2j9oGLhTSn1LJa77LCsp5enZ5V9FFqqo&fref=nf&__xts__[0]=68.ARCyQXHtQiTBp76DdJ0SFGYVWXjnwMtdtspyq7lbFSZJ61Fu-gRIZmnIfcFZJEOX4ChfHMwg1A2HeUi8L0redSI79tm_2NeQTdg9kqyOCWazzPAfMiCMsUmt2V7T6fhXQm5RVeAvVdlUkOS7JTzGMOG57O6-oP-1L1WIbBlgEriAu4Xevz58DQ
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Not sure if that link is working. You can find the timelapse video by going to Facebook and searching for me at, John Ashley Fine Art Photography.
Posted by JohnAshley 2018-10-10 19:40:57
Wow! Thank you for sharing these pictures. Are you the one that got the proton arc at glacier park a couple years ago?
Posted by Lightwaves 2018-10-11 09:09:11
Possible rocket plume/out gassing? Thrusters?
Posted by kb9uwu 2018-10-11 13:16:28
It does look like a rocket plume, but as far as I know western Canada hasnt fired any rockets towards the northern U.S.
Posted by JohnAshley 2018-10-11 16:58:40
15 thumbs up
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