// -*- coding: utf-8 -*- // Title: Primordial earth // Name: PrimEarth.sc // Comment: Earth without Theia // JackDole 2016.11.26 20:02:04 //------------------------------------------------------------------------------ // Earth mass = EarthMass+MoonMass-MarsMass // Deceleration of the earth's rotation through the moon: 1.6e-5 s/year // About 15 hours in 3.5 billion years = 9 h pro day // (4 billion years ago 14 hours, others say 6-7 hours a day) //------------------------------------------------------------------------------ // Put in 'addons\catalogs\planets' Remove "Earth-Moon" {ParentBody "Sol"} Remove "Earth" {ParentBody "Earth-Moon"} Remove "Moon" {ParentBody "Earth-Moon"} Planet "Earth" { ParentBody "Sol" Class "Terra" Mass 0.90533012 RotationPeriod 14 // Estimated Atmosphere { Height 67.89596 // Random Pressure 3.47987 // Random Density 1.80874 // Random Greenhouse 76.12 // Random } Orbit { RefPlane "Ecliptic" Period 1.0 SemiMajorAxis 1.0000010178 Eccentricity 0.0167086342 Inclination 0.0 AscendingNode 348.739 LongOfPericen 102.93734808 MeanLongitude 100.46645683 } } //------------------------------------------------------------------------------