🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.8

Radius: 11.2

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.55 AU - 0.57 AU

Year: 279 Days

Day: 12.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,818,274 km

• M1: 139,276 km (0.119 R)
• M2: 550,071 km (0.083 R)
• M3: 914,193 km (0.091 R)
• M4: 1,346,231 km (0.064 R)
• M5: 1,696,889 km (0.111 R)
• M6: 2,066,545 km (0.06 R)
• M7: 2,515,039 km (0.087 R)
• M8: 2,972,809 km (0.069 R)
• M9: 3,445,239 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.3

Radius: 8.9

Gravity: 8.32 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.67 AU - 0.79 AU

Year: 416 Days

Day: 6.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,818,274 km

• M1: 111,450 km (0.119 R)
• M2: 426,055 km (0.058 R)
• M3: 940,073 km (0.066 R)
• M4: 1,284,148 km (0.12 R)
• M5: 1,654,702 km (0.077 R)
• M6: 3,027,412 km (0.077 R)
• M7: 3,424,146 km (0.103 R)
• M8: 3,741,144 km (0.083 R)
• M9: 4,131,145 km (0.093 R)
• M10: 4,420,168 km (0.109 R)
• M11: 4,826,626 km (0.098 R)
• M12: 5,515,823 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.5

Radius: 13.8

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.74 AU - 0.74 AU

Year: 424 Days

Day: 8.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 71,818,274 km

• M1: 197,768 km (0.047 R)
• M2: 709,991 km (0.119 R)
• M3: 1,220,569 km (0.06 R)
• M4: 2,399,849 km (0.118 R)
• M5: 2,859,563 km (0.086 R)
• M6: 3,672,478 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.9

Radius: 11.1

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.68 AU - 1.02 AU

Year: 523 Days

Day: 14.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,818,274 km

• M1: 138,079 km (0.086 R)
• M2: 486,642 km (0.1 R)
• M3: 874,848 km (0.072 R)
• M4: 1,294,919 km (0.09 R)
• M5: 1,680,582 km (0.106 R)
• M6: 2,087,339 km (0.039 R)
• M7: 3,124,352 km (0.113 R)
• M8: 3,855,436 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.1

Radius: 13.9

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.45 AU - 2.07 AU

Year: 1557 Days

Day: 12.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 71,818,274 km

• M1: 184,155 km (0.055 R)
• M2: 626,665 km (0.055 R)
• M3: 1,257,071 km (0.06 R)
• M4: 4,610,457 km (0.032 R)
• M5: 6,280,119 km (0.1 R)
• M6: 6,989,811 km (0.078 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 344.4

Radius: 4.3

Gravity: 18.63 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 8.28 AU - 9.16 AU

Year: 17171 Days

Day: 20.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,818,274 km

• M1: 90,656 km (0.097 R)
• M2: 245,191 km (0.1 R)
• M3: 948,301 km (0.109 R)
• M4: 2,087,937 km (0.045 R)
• M5: 8,274,707 km (0.095 R)
• M6: 10,325,694 km (0.07 R)
• M7: 11,210,416 km (0.082 R)
• M8: 16,038,238 km (0.052 R)
• M9: 26,466,107 km (0.109 R)
• M10: 32,880,415 km (0.082 R)
• M11: 33,703,951 km (0.11 R)
• M12: 34,661,827 km (0.095 R)
• M13: 37,135,876 km (0.047 R)
• M14: 44,541,420 km (0.086 R)
• M15: 47,460,972 km (0.08 R)
• M16: 51,286,488 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 685.3

Radius: 4.5

Gravity: 33.84 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 8.73 AU - 9.49 AU

Year: 18336 Days

Day: 16.2 Hours

Environment

Temp: -243 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,818,274 km

• M1: 60,886 km (0.118 R)
• M2: 274,811 km (0.066 R)
• M3: 540,497 km (0.042 R)
• M4: 830,567 km (0.09 R)
• M5: 1,806,245 km (0.096 R)
• M6: 3,993,665 km (0.048 R)
• M7: 4,752,874 km (0.116 R)
• M8: 5,448,953 km (0.039 R)
• M9: 6,294,929 km (0.045 R)
• M10: 7,132,527 km (0.078 R)
• M11: 9,188,750 km (0.097 R)
• M12: 10,204,669 km (0.078 R)
• M13: 13,137,087 km (0.108 R)
• M14: 16,586,215 km (0.074 R)
• M15: 17,999,915 km (0.109 R)
• M16: 22,520,912 km (0.107 R)
• M17: 25,308,818 km (0.049 R)
• M18: 25,740,558 km (0.084 R)
• M19: 41,985,091 km (0.112 R)
• M20: 43,200,275 km (0.099 R)
• M21: 53,071,341 km (0.111 R)
• M22: 56,668,421 km (0.119 R)
• M23: 62,953,327 km (0.058 R)
• M24: 67,598,042 km (0.086 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 352 - 15,461 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit