No. Because inRP battleships are made of the hardest material in the universe and such armour requires 3 mins of melting before destruction.
Since i am in the dev team and advise on sunspheres this is the way it will stay.
If however the rp around ship construction is retconned and it was decided that battleships are now made of aluminum or lead then yes of course we can buff suns. Silly.
Just cloak and then ram the sun, no problem then. Although after jumping into old systems with a jump drive, planets and dying stars do more damage than the suns