home *** CD-ROM | disk | FTP | other *** search
- ; equations for planet design
- ; used by Jerry Pournelle for science fiction books
-
- ; i illuminence, L luminosity, R distance to earth,
- ; M stellar mass, P period, all relative to sol/earth
-
- ; basic equations
- i = L / R^2
- M P^2 = R^3
-
- ; values for a particular story
- i = 0.97
- L = 0.93
- M = 1.2
- ; exclude extreme values of P, R
- 1e-10 < P < 1e10
- 1e-10 < R < 1e10