Making a custom landscape in Stellarium, I have a question regarding horizon placement. The picture size in height is 1024 per some YouTube videos I have watched. In Photoshop CS2 I know how to drag a line to the center of the picture to aid in horizon. So the horizontal line is placed at (1024 /2 )= 512 on the vertical scale. The other night I was noticing that a star was in my tree but not in the Stellarium’s view of the tree I had made previously. The question is do I raise the picture up or do I lower the picture to get a better horizon placement? It seems to be a guess in horizon placement. I can advance the time and change the date in Stellarium to simulate the same time and date that the star would be located to check my rework. I just have to redo the picture's placement in the PNG file.