🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.76 AU - 1.02 AU

Year: 311 Days

Day: 18.2 Hours

Environment

Temp: 113 °C

Axial Tilt: 19.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.9 AU - 1.1 AU

Year: 371 Days

Day: 39.9 Hours

Environment

Temp: 19 °C

Axial Tilt: 35.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.9 AU - 2.78 AU

Year: 1327 Days

Day: 26.1 Hours

Environment

Temp: -90 °C

Axial Tilt: 41.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,013,707 km

• M1: 328,667 km (0.098 R)

Asteroid Belt

Center: 3.69 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.2

Radius: 11.1

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 4.03 AU - 6.05 AU

Year: 4196 Days

Day: 7.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 44,013,707 km

• M1: 138,079 km (0.095 R)
• M2: 557,850 km (0.072 R)
• M3: 913,744 km (0.111 R)
• M4: 1,356,105 km (0.104 R)
• M5: 1,849,778 km (0.118 R)
• M6: 2,622,151 km (0.109 R)
• M7: 3,019,184 km (0.068 R)
• M8: 3,979,303 km (0.05 R)
• M9: 4,775,014 km (0.11 R)
• M10: 5,507,296 km (0.057 R)
• M11: 6,163,582 km (0.065 R)
• M12: 6,871,030 km (0.115 R)
• M13: 7,597,777 km (0.112 R)
• M14: 8,707,942 km (0.1 R)
• M15: 10,087,684 km (0.092 R)
• M16: 10,592,726 km (0.117 R)
• M17: 10,982,578 km (0.045 R)
• M18: 14,141,487 km (0.087 R)
• M19: 14,614,665 km (0.078 R)
• M20: 15,207,372 km (0.086 R)
• M21: 15,592,736 km (0.107 R)
• M22: 17,200,165 km (0.103 R)
• M23: 20,208,428 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.8

Radius: 13.8

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 5.37 AU - 5.53 AU

Year: 4718 Days

Day: 13.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,013,707 km

• M1: 171,738 km (0.116 R)
• M2: 795,861 km (0.082 R)
• M3: 1,440,179 km (0.08 R)
• M4: 2,558,124 km (0.112 R)
• M5: 3,157,113 km (0.088 R)
• M6: 3,849,004 km (0.079 R)
• M7: 4,746,441 km (0.081 R)
• M8: 6,129,474 km (0.055 R)
• M9: 6,574,228 km (0.043 R)
• M10: 7,470,319 km (0.101 R)
• M11: 11,028,355 km (0.036 R)
• M12: 12,334,494 km (0.04 R)
• M13: 13,434,487 km (0.057 R)
• M14: 15,491,458 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590

Radius: 13.4

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 4.44 AU - 7.24 AU

Year: 5234 Days

Day: 9.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 172.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,013,707 km

• M1: 167,550 km (0.107 R)
• M2: 672,442 km (0.046 R)
• M3: 1,104,780 km (0.103 R)
• M4: 1,707,360 km (0.119 R)
• M5: 2,508,307 km (0.072 R)
• M6: 3,982,295 km (0.089 R)
• M7: 4,404,161 km (0.07 R)
• M8: 4,986,995 km (0.097 R)
• M9: 5,883,535 km (0.09 R)
• M10: 8,143,510 km (0.097 R)
• M11: 10,442,979 km (0.091 R)
• M12: 10,887,135 km (0.111 R)
• M13: 13,560,299 km (0.117 R)
• M14: 14,197,137 km (0.092 R)
• M15: 15,133,470 km (0.117 R)
• M16: 16,228,078 km (0.09 R)
• M17: 16,704,547 km (0.054 R)
• M18: 19,294,834 km (0.069 R)
• M19: 20,169,234 km (0.081 R)
• M20: 22,434,295 km (0.104 R)
• M21: 24,473,464 km (0.102 R)
• M22: 26,715,786 km (0.114 R)
• M23: 27,297,123 km (0.093 R)
• M24: 28,313,342 km (0.082 R)
• M25: 29,618,882 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.7

Radius: 12.6

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 7.86 AU - 8.46 AU

Year: 8644 Days

Day: 5.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 44,013,707 km

• M1: 157,078 km (0.075 R)
• M2: 649,554 km (0.101 R)
• M3: 1,109,119 km (0.1 R)
• M4: 1,514,529 km (0.109 R)
• M5: 1,911,113 km (0.098 R)
• M6: 2,659,401 km (0.104 R)
• M7: 3,246,274 km (0.098 R)
• M8: 4,179,914 km (0.054 R)
• M9: 5,253,578 km (0.025 R)
• M10: 6,182,132 km (0.083 R)
• M11: 7,573,392 km (0.113 R)
• M12: 8,847,218 km (0.069 R)
• M13: 9,394,896 km (0.088 R)
• M14: 10,209,606 km (0.086 R)
• M15: 10,915,409 km (0.117 R)
• M16: 11,333,235 km (0.082 R)
• M17: 12,594,196 km (0.118 R)
• M18: 13,054,209 km (0.076 R)
• M19: 16,938,967 km (0.059 R)
• M20: 17,856,600 km (0.09 R)
• M21: 19,868,392 km (0.111 R)
• M22: 20,809,513 km (0.113 R)
• M23: 21,616,144 km (0.096 R)
• M24: 32,128,387 km (0.054 R)
• M25: 35,661,440 km (0.11 R)
• M26: 37,168,040 km (0.098 R)
• M27: 38,115,892 km (0.115 R)
• M28: 39,079,901 km (0.106 R)
• M29: 40,681,047 km (0.092 R)
• M30: 43,882,291 km (0.063 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: 215 - 12,910 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit