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:

A new version of the book
is under construction. It will be published until April
2020 The new version will have 256 sites and it will be cheaper. 
176 Sites 84 coloured Illustrations 9 Tables Production und Publishing: Books on Demand GmbH, Norderstedt ISBN 9783752855241 Price: 22 Euro 
