Well, that is a pretty ugly resolution to this.
It would be somewhat more interesting if you could just attach a simple component of custom hyper-deny to all stars by default, when map is generated...

<t> There was something like that in Star Drive 1 if I remember correctly.<br/>
It was called Gravity Wells, which basically slowed down hyperdrive of your ships when they were in a solar system. You could change the strength of the applied slow, where 0% of speed meant that hyperdrives were ...