Beren Erchamion, son of Barahir, many thanks!
When the weather clears up I intend playing around with the ISO and then getting a handle on stacking. Unfortunately I'll have to stick to <30 secs because I'm working in alt-az.
As for the LOTR passage... I thought it was a bit long for a sig! It's one of my favourite passages. FOTR, Chapter 3 "Three is Company" when the four hobbits meet Gildor in the woods. There's another similar one in the Silmarillion, dealing with Varda creating the stars from the Vats of Telperion and Laurelin. I might dig that up next!
May your Luthien dance ever under the hemlock leaves of Neldoreth!