The Great Wall through a telescope
In Cygnus: part of the glowing gas of the North America nebula
1,600 light years away
1200mm (telescope) f/4.8 ISO6400 65 x 32s = 35 minutes
This is the "Mexico" part of the North America Nebula, sometimes called the Great Wall.
This is in normal light (no filters) but the red is again due to hydrogen. Other elements emit the other colours. Notice the columns of dust, where new stars are forming.