As it already took me some time to learn how to fly and do the tutorials, I decided to ask for a little help with my first mission because I am already somehow lost in space and don't know what to do 
I started at LHS 3447 and signed a mission to recover a black box from LTT 15613 for some Security Corp (cause I am little bit afraid of shooting, I admit
)
I ploted a route and jumped.
Now I have 3 questions.
1.) On my way I stumbled across a system which only seem to have one sun. Its marked as unexplored and even the System view does not show any other planet. Is there any way to scan the system for other planets? Do I have to explore a planet to mark it as explored? If so, how?
2.) Whats with heat? There was a heat warning that I only survived by accident ... how do I cool my ship, and why it was heating up while fast travelling?
3.) LTT 15613 is another system with an unexplored sun and nothing else. And no sign of the black box? I do not think I am supposed to fly around and look for it manually.. there must be a way to scan or show a quest marker, right?
I started at LHS 3447 and signed a mission to recover a black box from LTT 15613 for some Security Corp (cause I am little bit afraid of shooting, I admit
I ploted a route and jumped.
Now I have 3 questions.
1.) On my way I stumbled across a system which only seem to have one sun. Its marked as unexplored and even the System view does not show any other planet. Is there any way to scan the system for other planets? Do I have to explore a planet to mark it as explored? If so, how?
2.) Whats with heat? There was a heat warning that I only survived by accident ... how do I cool my ship, and why it was heating up while fast travelling?
3.) LTT 15613 is another system with an unexplored sun and nothing else. And no sign of the black box? I do not think I am supposed to fly around and look for it manually.. there must be a way to scan or show a quest marker, right?