Personally, if you got all huffy over "Green Star System" in my game, I'd point you at the door and remind you not to let it hit you on the way out.
In a game where there are sentient AI PC's, aliens walking around, and all the other fantastic things that a infinite universe could provide us, you're going to choke on Green Stars?
"OK, you're ship drops out of hyperspace, and after a few seconds the computers recover from the reality shock. According to the scanners that the 3 armed, 3 legged, 6 lobed, nine eyed creature running the long range scanner, there's a Green Star up ahead with 3 asteriods and...."
"Wait a minute? A green star? A GREEN star? I quit! This is unrealistic!"
Geez, if you're imagination can't wrap around a green star, in a fiction genre that support everything from mining on the surface of a neutron star, to vast fleets of "Tilling" spaceships, to self-aware computer battleships seeking to destroy all life, to The Force, to whatever else you can think off....
Perhaps a +2 sword is more your speed.