Also, why is the Death Star up-side-down in this shot?
There is no upside down in space. It’s all three-dimensional, remember? 😛
Yeah, in the real world there is no upside down in space.
But if you look at Star Wars or especially Star Trek, you will notice that the ships always are like horizontally aligned. It is a normal thing in movies to make “it look good”.
I will say if every spaceship is flying as they like, it would be an optically mess! It is a film thing not a realism thing. In reality there are no spaceships 😉
The upside down deathstar looks to me like a mistake