According to the infobox for the Cutthroat map there are only 6 planets, while the text says there's 2 hidden artifacts. I've yet to play the map properly but I had an ultraquick look because a 6 planet map sounded truly tiny and I was curious.

Was there a typo? Should this 6 actually be a 16?

Here's a screenshot:

While yes each player starts with 2 colonisables directly connecting to his homeworld, (1x ice Asteroid, and a larger planet by the look of it), there's also an asteroid with a derelict roughly midway between the two homeworlds and likely quickly become a source of conflict - bottom of this screenshot. 

Each of the larger colonisable planets appears to connect to an uncolonisable both of which connect to another uncolonisable - dead asteroid in this case, which grants access both towards the sun, and to the asteroid with the derelict at the bottom.

There's another uncolonisable on the way to the sun, then 3x Minor Faction planets and a Gas Giant off the sun.

So is the Infobox supposed to read 6 or 16? 😇