What's this ?

[robertpittuck]

As a complete novice with a humble Skywatcher 200P I decided tonight as the sky was crystal clear in Fife to point my tripod mounted camera at Orion and shoot off some time lapse, one photo every 5 seconds @ 0.6second exposure, anyway the following 5 frames have an object going through, an aircraft? Doesn't look like the normal images of aircraft, here are the frames after cropping and zooming.

Frame 1

and zooming in

Frame 2

zooming in

Frame 3

zooming in

Frame 4

zooming in

Frame 5

zoomin in

regards

Robert

[Leveye]

Yep. Red tail lights flashing on and off.

[todd8137]

Nice little group of images plane tail lights me thinks

Pat

[robertpittuck]

Thanks for the quick replies !

[Charic]

At nearly 20 secs to cover so little sky in an aircraft and no wing lights/strobes captured? Maybe a satellite

[Zakalwe]

Its a navigation strobe on the belly of an aircraft

http://en.wikipedia.org/wiki/Navigation_light