Quote Originally Posted by StoneNYC View Post
Based on the distance of the movement of the stars, I would guess this were more like 40 minutes not 20... are you sure?
You can only estimate trail length if you know my focal length and the latitude of the stars... And believe me, I was counting every minute there with my arse freezing off.

Anyway, that's not an entry. The normal MSA rules are for new shots only, which makes me a little sad because clearly I won't be going back to Mongolia anytime soon.