Basically, the model presented so
far consists of 6 equations. The special basic model for habitable " Earths 2" in solarlike star systems is: 6.3.3 Equation N_{ze} = A·F_{sph}·F_{gae}·F_{Liz} The general basic model for habitable "Earths 2" in the galaxy is: 8.4.2 Equation N_{zexGal} = A · ∑ (F_{X }· F_{ph} · F_{gae} · F_{Liz}) The general approach for habitable planets in the galaxy is: 12.2.2 Equation N_{zivGal} = A · ∑ (F_{X }· F_{ph} · F_{k} · F_{Liz}) As well as the three equations, which contain all necessary probabilities concerning planetary adhesion, habitable zone, earth similarity, life, intelligence and civilization:

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