I forgot about the exposure time.
The Olancha one is 1 hour 51 minutes. It was actually a mistake as I had planned to do 20 minute exposures for a few hours and paste them together but I fell asleep and my alarm did not wake me but I love the results.
I don't remember what the Saline Valley exposure time was, it's two images and one of them was an hour and then the second one I fell asleep and when I woke up the camera battery had died.
Star trails are the most annoying thing to try and get right and of course it takes so much time. I was out in Death Valley over the Thanksgiving weekend and I did two 30 minute exposures with the long exposure noise reduction feature on and if you do 30 minutes it will take longer then that for the image to finish processing so after the two shots I decided to let the camera do it's thing and of course the battery died and I lost both images so I ended up with nothing other then a 10 minute test shot for composition.
I should have learned my lesson after that happened to me once before after doing 4 shots 20 minutes each and the camera reached it's limit of processing and the battery died losing all 4 images.
If that feature is turned off and the camera dies while still taking a photo then you will not lose the image.
