Will just say this at first. You must have Kalimdor Flying to do this.
"Also i see no post of this spot."
Also do note. When first getting under continent, either fly low enough first (quite a bit) before going or you will hit either COT tunnel going back into map. Or water that pushes off flying mount forcing you to return to surface.
First. You need to go to COT cavern. And find this spot...
Fly in Here
Then fly out towards lil spacy thing
Suggest flying a good ways down first then going straight, back/ or left. Right is water and may glitch you if to high to water.
Oh and note, the whole space thing is a Sky box and just a moving 2d picture. So you can't go to that stuff after passing a lil foward from last SS.