Optionally, install RSSTimeFormatter to display the correct date for the state of the TRAPPIST-1 system.

Our mini-mod comes as a patch on top of SLIPPIST-1 mod. It accurately models the real-life behavior of the planetary system: the transits are accurate to within a minute. The simulation uses the most recently published observational data (from K2 and Spitzer) and is based on a transit-timing variation optimization. TRAPPIST-1 is composed of seven tightly coupled Earth-like planets orbiting close to an ultracool dwarf star where n-body gravitation plays an important role, so it's an interesting application of Principia. “Trappist-1 for Principia” is a mini-mod that simulates the TRAPPIST-1 extrasolar planetary system. When upgrading to a new version of Principia it's fine to reuse an existing save as we maintain backward compatibility.

Unzip the archive and copy the Principia folder into the GameData folder of your installation of KSP.ĭon't reuse an existing save after installing Principia for the first time, create a new one ( see below). The binaries for Windows, macOS, and Ubuntu 圆4 can be found in the README. See the README for the versions of KSP currently supported by Principia. In these FAQ, is the directory such that the KSP executable is found in /KSP.exe.

Read all of the frequently asked questions (and their answers), or you will incur the wrath of the egg.

Principia ksp mac