Go to the SOL system, if you want to fly there. Enter it like any other system and that will put you right outside of the star base. Or, press "P" to pull up your powers and look for the Transwarp one. That will open a transwarp portal that will take you right there too.
How do you retrurn to starfleet command from sector space?
You know, being able to beam down, or take a shuttle to, StarFleet near San Fran would be AWESOME COOL. Why do we have to go to the spacedock only? And why only one planet in the Sol System. At last count there were 8 planets in Sol and when I was a kid there were 9. Where'd they go?