This is the longest duration Star Trail image I have done (to date at least ;-)).
It's 136 minutes worth of Star trails, this image is a combination of 272 seperate 30 second exposures, combined/blended together with the free "startrails.exe" software.
I was brave for this one and left my gear out in the countryside, whilst I went home, i've only done this twice........and probably won't do it again lol, it was an uncomfortable few hours :-)

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