Good point. I have been having problems with Aurora and wasn't able to figure out how to quickly look up the Habitability indices.
If you go to the "System Generation and Display" window (either by double clicking on a system in the galactic map or by pressing F9), the "Colony Cost" is the habitibility index.
If you go to the Economics window (F2), the same index is listed at the top of the summary page.
But I thought Sicyon was almost the exact same distance from Earth?
You could even have the Jump ship escorting the fast colony fleet to divert slightly to the Sicyon jump point to drop off freighters, and continue on to Thebes, picking up the freighters on the way back to Earth.
Sicyon
is almost the same distance from Sol as Thebes. And if you have a look at the jump point layout of Mycenae, the 3 jump points (from Corinth, to Sicyon and to Thebes) are
almost in a straight line.
And the greater distance that the Thebes fleet has to travel (in Mycenae, between the jump point to Sicyon and Thebes) is almost the same as the
extra distance the Sicyon bound ships have to travel between the Sicyon jump point and the primary.
I.e.
Fleet 1, going from Corinth Jump point (in Mycenae) to Sicyon:
Jump point to Sicyon jump point: 1.39B
Jump point to Sicyon primary: 2.17B
Total distance travelled: 3.56B
Fleet 2, going from Corinth Jump point (in Mycenae) to Thebes via Sicyon Jump point:
Jump point to Sicyon jump point: 1.39B
Sicyon jump point to Thebes Jump point: 2.68B
Thebes Jump point to Thebes primary: 0.2B
Total distance travelled: 4.27B
So while it might take slightly longer for the Thebes colony to do the run, it
might be possible (it all depends on if there is enough available freighters to carry the automated mines to Sicyon).