[flebron]

pc = Parsec :) https://en.wikipedia.org/wiki/Parsec

I don't know what the G stands for. Possibly luminosity of some kind?

[exhilaration]

Brightness seems to be measured as apparent magnitude but that's denoted by m https://en.wikipedia.org/wiki/Apparent_magnitude

I think G is Stellar Classification https://en.wikipedia.org/wiki/Stellar_classification#Class_G which would mean this new star is the same class as our Sun.