🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.79 AU - 1.19 AU

Year: 360 Days

Day: 29.5 Hours

Environment

Temp: 40 °C

Axial Tilt: 44.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 61,625,266 km

• M1: 62,981 km (0.078 R)
• M2: 380,727 km (0.038 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.28 AU - 1.5 AU

Year: 599 Days

Day: 37.7 Hours

Environment

Temp: -29 °C

Axial Tilt: 34.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.05 AU - 2.89 AU

Year: 1418 Days

Day: 44.9 Hours

Environment

Temp: -88 °C

Axial Tilt: 53.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3.59 AU - 5.17 AU

Year: 3348 Days

Day: 24.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 24.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 4.15 AU - 4.93 AU

Year: 3533 Days

Day: 47.7 Hours

Environment

Temp: -133 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.79 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 13.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 492.1

Radius: 5.3

Gravity: 17.52 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 9.96 AU - 16.12 AU

Year: 17199 Days

Day: 22.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 109.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 61,625,266 km

• M1: 73,153 km (0.083 R)
• M2: 390,151 km (0.074 R)
• M3: 938,427 km (0.114 R)
• M4: 1,551,779 km (0.076 R)
• M5: 1,864,588 km (0.109 R)
• M6: 2,318,617 km (0.104 R)
• M7: 2,843,407 km (0.105 R)
• M8: 4,824,980 km (0.094 R)
• M9: 5,381,634 km (0.1 R)
• M10: 6,215,492 km (0.112 R)
• M11: 6,416,552 km (0.087 R)
• M12: 8,523,488 km (0.109 R)
• M13: 10,818,918 km (0.115 R)
• M14: 11,110,035 km (0.079 R)
• M15: 13,563,141 km (0.103 R)
• M16: 16,893,788 km (0.118 R)
• M17: 19,422,142 km (0.07 R)
• M18: 21,000,250 km (0.081 R)
• M19: 30,301,946 km (0.11 R)
• M20: 31,702,631 km (0.09 R)
• M21: 36,944,690 km (0.12 R)
• M22: 38,407,309 km (0.101 R)
• M23: 42,880,883 km (0.104 R)
• M24: 45,242,585 km (0.032 R)
• M25: 48,629,481 km (0.118 R)
• M26: 50,870,457 km (0.108 R)
• M27: 53,346,900 km (0.111 R)
• M28: 61,625,197 km (0.12 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 13,423 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit