🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.48 AU - 0.74 AU

Year: 308 Days

Day: 15.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 28.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.7

Radius: 12.7

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.81 AU - 0.97 AU

Year: 542 Days

Day: 11.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,680,955 km

• M1: 157,975 km (0.104 R)
• M2: 631,303 km (0.092 R)
• M3: 1,151,305 km (0.107 R)
• M4: 2,128,179 km (0.08 R)
• M5: 3,123,155 km (0.083 R)
• M6: 3,570,452 km (0.106 R)
• M7: 4,253,965 km (0.093 R)
• M8: 5,125,522 km (0.119 R)
• M9: 5,733,189 km (0.036 R)
• M10: 6,408,474 km (0.04 R)
• M11: 6,986,221 km (0.049 R)
• M12: 7,531,505 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.2

Radius: 8.1

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.03 AU - 1.11 AU

Year: 715 Days

Day: 11.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 45,680,955 km

• M1: 103,522 km (0.07 R)
• M2: 361,428 km (0.088 R)
• M3: 751,580 km (0.061 R)
• M4: 1,109,717 km (0.038 R)
• M5: 1,425,967 km (0.04 R)
• M6: 1,712,297 km (0.059 R)
• M7: 1,965,417 km (0.12 R)
• M8: 2,272,990 km (0.072 R)
• M9: 2,656,110 km (0.106 R)
• M10: 3,081,866 km (0.092 R)
• M11: 3,997,255 km (0.081 R)
• M12: 4,385,611 km (0.042 R)
• M13: 4,914,739 km (0.105 R)
• M14: 5,871,417 km (0.103 R)
• M15: 6,433,756 km (0.061 R)
• M16: 7,487,373 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.4

Radius: 13.3

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.43 AU - 1.49 AU

Year: 1139 Days

Day: 9.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,680,955 km

• M1: 165,455 km (0.113 R)
• M2: 606,769 km (0.067 R)
• M3: 1,129,763 km (0.045 R)
• M4: 1,574,817 km (0.051 R)
• M5: 2,083,300 km (0.08 R)
• M6: 4,142,365 km (0.119 R)
• M7: 5,267,341 km (0.046 R)
• M8: 6,007,551 km (0.108 R)
• M9: 6,752,848 km (0.101 R)
• M10: 7,581,770 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.2

Radius: 14.8

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.34 AU - 6.46 AU

Year: 8102 Days

Day: 9 Hours

Environment

Temp: -223 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,680,955 km

• M1: 184,155 km (0.115 R)
• M2: 716,275 km (0.118 R)
• M3: 1,193,492 km (0.097 R)
• M4: 2,052,333 km (0.081 R)
• M5: 6,655,310 km (0.095 R)
• M6: 7,268,811 km (0.049 R)
• M7: 10,309,238 km (0.068 R)
• M8: 11,669,083 km (0.032 R)
• M9: 12,166,795 km (0.119 R)
• M10: 13,204,854 km (0.109 R)
• M11: 22,958,336 km (0.113 R)
• M12: 25,177,920 km (0.042 R)
• M13: 33,461,902 km (0.116 R)
• M14: 37,852,600 km (0.074 R)
• M15: 42,874,451 km (0.099 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 433 - 12,022 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit