Probabilities in the Galaxy
A Distribution Model for habitable Planets
Copyright © Klaus Piontzik

 German Version    
German Version    

2.7 -

The planets found so far, usually about the same size as the Earth, can also be up to twice as large. In the rotation time as well as the orbit time there are however considerable deviations and the mass of the found planets is always larger than that of the earth. Gravity there is so high that no human being on earth could live there any longer. Nevertheless, it cannot be ruled out that life in the form of flora and fauna could also develop there.

An "Earth 2" here means a planet whose size, rotation time and atmosphere are similar to Earth. Furthermore, it has oceans and continents and is so similar to the earth that people could live there.

A real "Earth 2" has not yet been found.

All considerations presented so far are based on the evaluation of empirical data from the Kepler telescope and catalogue data. They therefore represent the real situation.

From the analysis of the catalogue data the following probabilities for the distributions of habitable planets result:


Symbol Rate Factor Designation
Fhsub 1:53 0.018,867 Subearth
Fhsup 2,043:3,286 0.621,728 Superearth
Fg 1,212:3,286 0.368,837 approximately earth-great Planets
Fa 51:130 0.392,307 approximately earth-like Planets


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