More Star Destroyer Questions

[Alneyan]

Nebulae creators are cheaper than regular Star Destroyers, not more expensive; if all you need is to deal damage (and you have the research), they are the best option. If you are planning on rebuilding in the destroyed system, the regular Star Destroyer might be better (though removing the nebulae isn't very hard when you have Stellar Manipulation vessels galore).

2) So long as you start on the star (I think), you can move around until the end of the turn, and blow the star by coming back to the star sector.

[Enigma]

Thanks let me clarify. I intend to open a Warp Point and send the star destroyer into the system to the star and blow it up.

In some earlier posts I think someone said you could move to the star and blow it up in the same turn for the Nebulae and the Black Hole. But for the Star Destroyer you must start the turn on the star. Would be good to get a confirmation. I have a black hole creator because I do not want him coming back to the system and i am greatly outnumbered.