🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.52 AU - 0.68 AU

Year: 163 Days

Day: 31.7 Hours

Environment

Temp: 203 °C

Axial Tilt: 7.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 25,362,218 km

• M1: 211,531 km (0.09 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.54 AU - 0.8 AU

Year: 193 Days

Day: 12.1 Hours

Environment

Temp: 192 °C

Axial Tilt: 42.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 25,362,218 km

• M1: 120,725 km (0.116 R)
• M2: 482,902 km (0.106 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.06 AU - 1.08 AU

Year: 389 Days

Day: 46.5 Hours

Environment

Temp: 121 °C

Axial Tilt: 1.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.74 AU - 5.38 AU

Year: 4000 Days

Day: 45.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 4.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872

Radius: 13.8

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.65 AU - 8.83 AU

Year: 7568 Days

Day: 8.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 25,362,218 km

• M1: 172,786 km (0.049 R)
• M2: 667,655 km (0.112 R)
• M3: 1,166,415 km (0.086 R)
• M4: 2,029,744 km (0.092 R)
• M5: 3,355,181 km (0.042 R)
• M6: 5,013,473 km (0.052 R)
• M7: 6,006,953 km (0.101 R)
• M8: 7,880,816 km (0.042 R)
• M9: 10,916,306 km (0.036 R)
• M10: 11,383,351 km (0.092 R)
• M11: 12,026,921 km (0.108 R)
• M12: 12,751,423 km (0.067 R)
• M13: 13,387,065 km (0.098 R)
• M14: 14,659,245 km (0.085 R)
• M15: 15,228,614 km (0.094 R)
• M16: 16,819,289 km (0.108 R)
• M17: 17,868,269 km (0.084 R)
• M18: 19,712,811 km (0.106 R)
• M19: 21,357,789 km (0.082 R)
• M20: 28,176,161 km (0.083 R)
• M21: 35,070,827 km (0.054 R)
• M22: 38,906,517 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.2

Radius: 8.4

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 7.36 AU - 9.02 AU

Year: 8238 Days

Day: 9.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 25,362,218 km

• M1: 104,419 km (0.115 R)
• M2: 461,659 km (0.109 R)
• M3: 772,972 km (0.109 R)
• M4: 1,081,144 km (0.113 R)
• M5: 1,824,944 km (0.083 R)
• M6: 2,219,434 km (0.045 R)
• M7: 2,604,649 km (0.09 R)
• M8: 3,430,130 km (0.119 R)
• M9: 4,235,415 km (0.093 R)
• M10: 4,634,093 km (0.055 R)
• M11: 4,955,878 km (0.074 R)
• M12: 7,080,318 km (0.073 R)
• M13: 7,952,623 km (0.119 R)
• M14: 9,008,335 km (0.092 R)
• M15: 9,393,101 km (0.116 R)
• M16: 9,708,902 km (0.116 R)
• M17: 9,990,894 km (0.088 R)
• M18: 13,918,885 km (0.072 R)
• M19: 15,720,941 km (0.103 R)
• M20: 17,317,599 km (0.068 R)
• M21: 21,030,469 km (0.05 R)
• M22: 24,940,359 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.9

Radius: 12.4

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 7.53 AU - 10.93 AU

Year: 9856 Days

Day: 9.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 25,362,218 km

• M1: 154,385 km (0.108 R)
• M2: 814,710 km (0.111 R)
• M3: 1,209,648 km (0.105 R)
• M4: 1,636,900 km (0.093 R)
• M5: 2,063,403 km (0.086 R)
• M6: 3,905,701 km (0.037 R)
• M7: 4,427,349 km (0.047 R)
• M8: 5,353,360 km (0.107 R)
• M9: 6,277,725 km (0.116 R)
• M10: 6,861,606 km (0.107 R)
• M11: 7,805,119 km (0.077 R)
• M12: 9,863,885 km (0.069 R)
• M13: 13,810,576 km (0.102 R)
• M14: 16,252,013 km (0.063 R)
• M15: 16,797,298 km (0.067 R)
• M16: 17,860,639 km (0.039 R)
• M17: 18,506,753 km (0.101 R)
• M18: 19,914,469 km (0.063 R)
• M19: 21,248,582 km (0.029 R)
• M20: 26,017,164 km (0.051 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.1

Radius: 14.5

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 9.14 AU - 9.46 AU

Year: 9968 Days

Day: 5.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 25,362,218 km

• M1: 180,415 km (0.094 R)
• M2: 1,329,327 km (0.073 R)
• M3: 1,846,636 km (0.053 R)
• M4: 2,466,121 km (0.103 R)
• M5: 2,967,124 km (0.057 R)
• M6: 3,493,409 km (0.1 R)
• M7: 6,485,217 km (0.084 R)
• M8: 7,451,919 km (0.075 R)
• M9: 8,752,523 km (0.056 R)
• M10: 10,289,641 km (0.057 R)
• M11: 11,170,174 km (0.072 R)
• M12: 12,818,593 km (0.094 R)
• M13: 18,466,212 km (0.107 R)
• M14: 20,332,595 km (0.072 R)
• M15: 30,168,804 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 31.6

Radius: 3.8

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 10.86 AU - 16.64 AU

Year: 17920 Days

Day: 24.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,362,218 km

• M1: 82,877 km (0.111 R)
• M2: 212,728 km (0.116 R)
• M3: 999,015 km (0.099 R)
• M4: 1,856,659 km (0.096 R)
• M5: 3,062,119 km (0.057 R)
• M6: 4,935,533 km (0.116 R)
• M7: 5,653,154 km (0.046 R)
• M8: 6,257,380 km (0.116 R)
• M9: 11,336,377 km (0.11 R)
• M10: 14,262,063 km (0.097 R)
• M11: 14,838,164 km (0.064 R)
• M12: 21,957,975 km (0.084 R)

Kuiper Belt

Range: 31.2 - 59.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 10,893 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit