Stellar Manipulation

Few questions regarding Stellar Manipulation: (Been too long since I played a game that lasted long enough to use much of it)

1) Are Ring/Sphereworlds considered huge size for purposes of Tectonic Bombs? Or are they simply immune to them?

2) Planet Create Size and Star Create - Will they always make the MAXIMUM size or is there a random variable that will cause the created object to vary from smallest to largest allowed by the item?

3) Stellar Nucleonic Torpedo - if I recall, this could be used from anywhere in the system, is there any way to restrict it's usage to within a certain range of the star? (Was trying to figure out if a dedicated Nucleonic Warhead was feasable for Large Drones that had to be next to the star to use).

Side note, wish there was a way to restrict range of items for destruction... that way I could reverse order for Nucleonic Torpedoes, since the way the sizes in the StellarObjectTypes run, the tiny stars are dim red while the huge ones are the blue... it would seem logical that it would be easier to disrupt a hot star into destroying the system than a dim, cooler one so I'd like to make the torpedo work only on huge first and slowly gain effectiveness to work on tiny... reversing sizes in stellar objects wouldn't fix this, it would just create an identical problem for the Stellar Plasma Sphere (which works fine as is with the sizes the way they are - creating cooler stars at first and eventually hot ones).