Tecnical Aspects:
It was shooted at same location with the same equipment, focal (200mm canon photolens), mount (sky adventurer), camera (Canon 6D modded), declination (azimuthal 261°), at the same night..
The only diferrence is in the right ascension RA during orion was falling down to the peak, because first in time, we began with orion zone about at 60º of altitude AZ. When foreground (Teide's peak) and background (orion's zone) was at 11° of altitude from our location, we stop the sky adventurer mount without touching anything, and took the Teide's peak frames.. Before we had calculated the correct horizontal camera's angle to take the foreground and add to final composite.. "A little bit away from more artificial composites" saids to me Rogelio Bernal somedays ago..
And that was our idea from some years ago.. Get the mayor realistic composite posible in the same frame at the same night at the same location.. A deep sky object with a beautifull landscape. And here is the difficulty.. Doing it at 200mm implies that we had to calculate with a celestial planetarium and a photographic positioning program the exact point from where we'd take the photo, because when we stop the celestial movement, the deep sky area (Orion zone) has to stay just above the ground, in this case, Teide's peak on Tenerife island.
Curiosities of this frame are the lights from teide's refuge and from a group of people who want to summits pike before dawn at 04:30 am..
At 200mm going about more than 100 meters north or south for our location we would have left teide out of plane..
East side of Teide's peak at Teide's National Park.. Canary Island.. Spain.. 02/13/2016 between 00:30 and 04:30 am..
Background frames.. Orion's belt and sword (HDR combo 20x10s, 20x40s, 20x160s)..
Foreground frames.. East side of Teide's peak (10x160s without sidereal rate)..
A Beautiful Astrolandscape..