A few bombers and I once took on two Legates. We killed the first, and the second one bailed. We gave chase, but to shake us, it traveled close to the sun and the chase took extremely long. For some odd reason, he was able to withstand right in the coronas for a very long time (in RP, really ridiculous).
It would make sense to up the damage. Vanilla never had player flown capital ships, not armor upgrades (not any ship with much more than 10k hull, for that matter), so the sun never needed to be coded to do much damage. Now however, it's different.