🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.4

Radius: 9.5

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.46 AU - 0.74 AU

Year: 315 Days

Day: 7.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,347,059 km

• M1: 118,182 km (0.079 R)
• M2: 542,591 km (0.081 R)
• M3: 846,874 km (0.072 R)
• M4: 1,364,781 km (0.112 R)
• M5: 1,999,376 km (0.109 R)
• M6: 2,300,516 km (0.086 R)
• M7: 2,632,025 km (0.066 R)
• M8: 3,096,975 km (0.062 R)
• M9: 3,480,843 km (0.056 R)
• M10: 3,860,523 km (0.116 R)
• M11: 4,204,299 km (0.112 R)
• M12: 4,501,849 km (0.039 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.7

Radius: 10.1

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.67 AU - 0.73 AU

Year: 397 Days

Day: 13.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,347,059 km

• M1: 125,662 km (0.058 R)
• M2: 444,904 km (0.099 R)
• M3: 783,893 km (0.1 R)
• M4: 1,108,221 km (0.055 R)
• M5: 1,470,248 km (0.1 R)
• M6: 1,992,344 km (0.053 R)
• M7: 2,339,112 km (0.108 R)
• M8: 2,772,946 km (0.086 R)
• M9: 3,291,752 km (0.1 R)
• M10: 3,710,925 km (0.117 R)
• M11: 4,458,615 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.8

Radius: 13.3

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.62 AU - 0.84 AU

Year: 423 Days

Day: 14.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 27,347,059 km

• M1: 165,455 km (0.079 R)
• M2: 630,106 km (0.084 R)
• M3: 1,166,564 km (0.112 R)
• M4: 2,172,311 km (0.043 R)
• M5: 2,607,640 km (0.071 R)
• M6: 3,740,096 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.3

Radius: 13.9

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.64 AU - 0.88 AU

Year: 449 Days

Day: 8.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 27,347,059 km

• M1: 172,935 km (0.115 R)
• M2: 695,481 km (0.117 R)
• M3: 1,169,556 km (0.104 R)
• M4: 1,621,641 km (0.084 R)
• M5: 2,255,188 km (0.087 R)
• M6: 3,178,656 km (0.105 R)
• M7: 3,968,233 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559

Radius: 14.8

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.77 AU - 1.28 AU

Year: 699 Days

Day: 9.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,347,059 km

• M1: 184,005 km (0.112 R)
• M2: 683,961 km (0.092 R)
• M3: 1,202,767 km (0.074 R)
• M4: 1,738,028 km (0.059 R)
• M5: 3,622,064 km (0.104 R)
• M6: 4,469,685 km (0.11 R)
• M7: 5,808,437 km (0.1 R)
• M8: 7,035,139 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.2

Radius: 10.7

Gravity: 7.23 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.05 AU - 1.67 AU

Year: 1076 Days

Day: 6.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,347,059 km

• M1: 133,292 km (0.049 R)
• M2: 618,438 km (0.036 R)
• M3: 1,341,295 km (0.08 R)
• M4: 1,692,550 km (0.053 R)
• M5: 3,430,279 km (0.088 R)
• M6: 3,851,098 km (0.078 R)
• M7: 4,236,612 km (0.101 R)
• M8: 5,046,535 km (0.054 R)
• M9: 6,497,335 km (0.119 R)
• M10: 7,070,444 km (0.109 R)
• M11: 7,834,141 km (0.073 R)
• M12: 10,014,680 km (0.058 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.7

Radius: 9.2

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.09 AU - 3.61 AU

Year: 4159 Days

Day: 8.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,347,059 km

• M1: 114,442 km (0.099 R)
• M2: 405,111 km (0.097 R)
• M3: 1,318,256 km (0.032 R)
• M4: 2,451,610 km (0.115 R)
• M5: 2,854,178 km (0.1 R)
• M6: 3,232,062 km (0.045 R)
• M7: 3,613,686 km (0.081 R)
• M8: 3,946,841 km (0.054 R)
• M9: 7,400,158 km (0.097 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.2

Radius: 14.2

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.54 AU - 4.18 AU

Year: 4177 Days

Day: 13.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,347,059 km

• M1: 176,675 km (0.065 R)
• M2: 718,369 km (0.045 R)
• M3: 1,335,759 km (0.115 R)
• M4: 3,548,312 km (0.095 R)
• M5: 5,301,001 km (0.114 R)
• M6: 6,811,490 km (0.104 R)
• M7: 7,274,795 km (0.096 R)
• M8: 8,592,902 km (0.095 R)
• M9: 11,017,285 km (0.05 R)
• M10: 11,904,550 km (0.112 R)
• M11: 12,450,881 km (0.103 R)
• M12: 14,710,407 km (0.106 R)
• M13: 16,088,952 km (0.104 R)
• M14: 18,371,516 km (0.052 R)
• M15: 19,273,591 km (0.085 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.1

Radius: 9.8

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.92 AU - 4.42 AU

Year: 4769 Days

Day: 11.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,347,059 km

• M1: 123,119 km (0.036 R)
• M2: 498,161 km (0.044 R)
• M3: 847,622 km (0.071 R)
• M4: 1,386,623 km (0.037 R)
• M5: 1,811,780 km (0.118 R)
• M6: 2,186,672 km (0.094 R)
• M7: 2,698,147 km (0.086 R)
• M8: 3,094,731 km (0.108 R)
• M9: 3,806,219 km (0.069 R)
• M10: 4,954,981 km (0.075 R)
• M11: 7,090,490 km (0.109 R)
• M12: 10,586,293 km (0.095 R)
• M13: 11,439,300 km (0.099 R)
• M14: 12,337,336 km (0.105 R)
• M15: 15,035,334 km (0.116 R)
• M16: 16,054,395 km (0.119 R)
• M17: 22,064,489 km (0.119 R)
• M18: 24,437,411 km (0.092 R)
• M19: 26,893,658 km (0.065 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.6

Radius: 8.2

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 4.57 AU - 6.11 AU

Year: 8370 Days

Day: 10.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 27,347,059 km

• M1: 102,475 km (0.105 R)
• M2: 460,163 km (0.107 R)
• M3: 815,757 km (0.118 R)
• M4: 1,163,423 km (0.09 R)
• M5: 1,898,547 km (0.114 R)
• M6: 2,407,030 km (0.092 R)
• M7: 5,473,038 km (0.097 R)
• M8: 5,986,907 km (0.112 R)
• M9: 7,144,196 km (0.066 R)
• M10: 7,481,090 km (0.108 R)
• M11: 7,970,425 km (0.11 R)
• M12: 9,407,013 km (0.108 R)
• M13: 9,935,991 km (0.066 R)
• M14: 12,299,488 km (0.092 R)
• M15: 13,031,171 km (0.067 R)
• M16: 15,400,502 km (0.12 R)
• M17: 16,250,218 km (0.094 R)
• M18: 16,833,800 km (0.114 R)
• M19: 17,981,215 km (0.041 R)
• M20: 23,906,637 km (0.085 R)
• M21: 24,737,803 km (0.082 R)
• M22: 26,218,672 km (0.094 R)
• M23: 26,618,099 km (0.114 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 217 - 10,411 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit