🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652

Radius: 14.7

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.62 AU - 0.68 AU

Year: 368 Days

Day: 14.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,861,408 km

• M1: 182,958 km (0.068 R)
• M2: 804,986 km (0.117 R)
• M3: 1,314,965 km (0.109 R)
• M4: 1,940,434 km (0.1 R)
• M5: 2,411,518 km (0.08 R)
• M6: 3,125,997 km (0.114 R)
• M7: 3,867,255 km (0.11 R)
• M8: 4,433,782 km (0.067 R)
• M9: 4,952,886 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.2

Radius: 14.5

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.24 AU - 1.38 AU

Year: 1054 Days

Day: 12.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,861,408 km

• M1: 180,864 km (0.12 R)
• M2: 859,739 km (0.096 R)
• M3: 1,470,996 km (0.098 R)
• M4: 2,299,020 km (0.092 R)
• M5: 2,967,872 km (0.115 R)
• M6: 3,652,282 km (0.116 R)
• M7: 4,585,025 km (0.096 R)
• M8: 5,108,468 km (0.115 R)
• M9: 7,163,793 km (0.075 R)
• M10: 7,731,068 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737

Radius: 10.5

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.39 AU - 1.53 AU

Year: 1240 Days

Day: 14.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,861,408 km

• M1: 130,599 km (0.109 R)
• M2: 460,163 km (0.107 R)
• M3: 1,064,688 km (0.095 R)
• M4: 1,458,579 km (0.103 R)
• M5: 1,859,202 km (0.101 R)
• M6: 2,451,760 km (0.033 R)
• M7: 2,832,935 km (0.088 R)
• M8: 3,298,184 km (0.105 R)
• M9: 3,997,405 km (0.1 R)
• M10: 5,147,064 km (0.096 R)
• M11: 5,582,693 km (0.1 R)
• M12: 6,156,252 km (0.081 R)
• M13: 6,720,086 km (0.094 R)
• M14: 7,190,571 km (0.092 R)
• M15: 8,822,385 km (0.103 R)
• M16: 9,539,707 km (0.118 R)
• M17: 9,944,219 km (0.12 R)
• M18: 10,490,401 km (0.111 R)
• M19: 11,713,364 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.8

Radius: 10.8

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.58 AU - 1.94 AU

Year: 1641 Days

Day: 9.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,861,408 km

• M1: 140,323 km (0.107 R)
• M2: 621,878 km (0.055 R)
• M3: 1,060,799 km (0.051 R)
• M4: 1,470,547 km (0.115 R)
• M5: 2,266,707 km (0.1 R)
• M6: 2,655,213 km (0.111 R)
• M7: 3,440,302 km (0.118 R)
• M8: 3,972,272 km (0.111 R)
• M9: 6,320,809 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.8

Radius: 13.1

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.56 AU - 4.24 AU

Year: 4407 Days

Day: 9.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,861,408 km

• M1: 163,062 km (0.074 R)
• M2: 1,029,233 km (0.064 R)
• M3: 2,173,358 km (0.116 R)
• M4: 3,510,464 km (0.06 R)
• M5: 4,869,111 km (0.118 R)
• M6: 5,924,375 km (0.036 R)
• M7: 7,291,999 km (0.118 R)
• M8: 8,338,885 km (0.108 R)
• M9: 9,364,528 km (0.085 R)
• M10: 11,896,771 km (0.093 R)
• M11: 13,547,583 km (0.102 R)
• M12: 16,245,880 km (0.075 R)
• M13: 17,061,637 km (0.052 R)
• M14: 18,088,477 km (0.096 R)
• M15: 19,220,334 km (0.113 R)
• M16: 20,332,146 km (0.104 R)
• M17: 23,189,465 km (0.077 R)
• M18: 24,600,472 km (0.071 R)
• M19: 25,910,650 km (0.104 R)
• M20: 26,384,128 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 637.4

Radius: 3.1

Gravity: 66.33 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.81 AU - 9.41 AU

Year: 14757 Days

Day: 17.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 68,861,408 km

• M1: 43,084 km (0.087 R)
• M2: 171,738 km (0.049 R)
• M3: 495,019 km (0.114 R)
• M4: 940,971 km (0.064 R)
• M5: 1,091,765 km (0.089 R)
• M6: 1,427,014 km (0.067 R)
• M7: 2,337,916 km (0.098 R)
• M8: 2,615,270 km (0.075 R)
• M9: 2,866,594 km (0.062 R)
• M10: 3,470,820 km (0.095 R)
• M11: 3,917,968 km (0.115 R)
• M12: 4,959,469 km (0.115 R)
• M13: 7,615,579 km (0.081 R)
• M14: 9,425,264 km (0.071 R)
• M15: 9,905,174 km (0.107 R)
• M16: 10,013,932 km (0.11 R)
• M17: 10,457,190 km (0.096 R)
• M18: 10,798,124 km (0.086 R)
• M19: 11,926,690 km (0.104 R)
• M20: 14,837,416 km (0.052 R)
• M21: 16,003,232 km (0.063 R)
• M22: 16,532,061 km (0.077 R)
• M23: 23,425,979 km (0.042 R)
• M24: 27,604,098 km (0.109 R)
• M25: 28,254,400 km (0.08 R)
• M26: 34,199,420 km (0.085 R)
• M27: 37,264,381 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 393.1

Radius: 6.6

Gravity: 9.02 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 8.96 AU - 11.34 AU

Year: 22730 Days

Day: 16.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,861,408 km

• M1: 83,326 km (0.101 R)
• M2: 855,101 km (0.089 R)
• M3: 1,131,110 km (0.092 R)
• M4: 1,406,070 km (0.087 R)
• M5: 1,725,013 km (0.081 R)
• M6: 1,995,336 km (0.109 R)
• M7: 3,133,327 km (0.097 R)
• M8: 3,565,964 km (0.05 R)
• M9: 6,391,419 km (0.033 R)
• M10: 16,316,041 km (0.045 R)
• M11: 16,553,603 km (0.091 R)
• M12: 16,873,892 km (0.078 R)
• M13: 19,587,448 km (0.102 R)
• M14: 22,092,464 km (0.073 R)
• M15: 23,977,996 km (0.088 R)
• M16: 25,968,395 km (0.097 R)
• M17: 28,179,751 km (0.082 R)
• M18: 29,800,345 km (0.106 R)
• M19: 32,470,966 km (0.089 R)
• M20: 43,982,372 km (0.105 R)
• M21: 47,595,311 km (0.088 R)
• M22: 56,302,355 km (0.07 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: 162 - 13,660 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit