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

German Version    
German Version    


2.8 - Conventions and Notation

In the following chapters planets are classified into these six categories:


2.8.1 Definition Planetary Categories
   
h planets in (h)abitable zones
   
hsup (h)abitable (Sup)erearth
   
hsub (h)abitable (Sub)earth
   
g approximatly earth-(g)reat planets
can be up to 4 times larger than the earth
   
a (a)pproximatly earth-like planets
Rotation time, orbital time deviate from the earth
Mars belongs in this category
   
e habitable, (e)arth-like planets („Earth 2“)



The indices in all equations and considerations of this book are formatted, with the following meanings:

2.8.2 Definition Indices
   
s (s)unlike
p (p)lanet
h (h)abitable zone
sub (Sub)earth
sup (Sup)erearth
g approximatly earth-(g)reat
a (a)pproximatly earth-like
e (e)arthlike
L (L)ife
i (i)ntelligent species
z civili(z)ation
u s(u)rvive civilization
m hu(m)an, humanoid
x not sunlike
RD (r)ed (D)warfs

 

Convention: In the case of sun-like systems, the index s may be omitted, since the non-sun-like systems are marked by an x.

 

to previous page back home next next page

 

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 9-783-7528-5524-1

Price: 22 Euro