Low Gravity with Atmosphere Retention
In v2.7.1, bodies with a lower gravity than the viewing species minimum have an “LG” suffix appended to their colony cost.
The default minimum gravity for humans in a new game is 0.1G, which is also the gravity at which a body can retain atmosphere. However, if you are playing a species with a different gravitational tolerance, there is a need to distinguish bodies between their low gravity status and their ability to retain an atmospheric.
in v3.0, if a body is above the atmospheric retention threshold but below the species minimum gravity, the suffix will be “LGR” (low gravity, retained)
If a body is above the the species minimum gravity but below the atmospheric retention threshold, the suffix will be “N” (no retention)
I have used different suffix lengths for the three cases because that is easier to see in a list of system bodies than the actual letters.