Fiction talk:Mechachine Galaxy

Size
Sorry, but none galaxy has 900.000.000 parsecs in diameter. Milky way has less than 30.000 parsecs in diameter, one parsec is approx. 3.2 LY, and milky way has even 100.000.000.000 stars, not 500.000.000, so, please, change it. Suitable size for half a billion stars will be about 3.000 parsecs in diameter, and stars will be there still very sparsely.