🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.8

Radius: 12.8

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.06 AU - 1.12 AU

Year: 786 Days

Day: 6.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,538,418 km

• M1: 161,566 km (0.078 R)
• M2: 687,103 km (0.083 R)
• M3: 1,324,540 km (0.071 R)
• M4: 1,904,979 km (0.064 R)
• M5: 2,475,396 km (0.093 R)
• M6: 3,183,742 km (0.073 R)
• M7: 3,771,512 km (0.117 R)
• M8: 4,366,612 km (0.098 R)
• M9: 7,700,700 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.8

Radius: 10.7

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.96 AU - 1.58 AU

Year: 988 Days

Day: 12.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 49,538,418 km

• M1: 133,591 km (0.071 R)
• M2: 468,092 km (0.041 R)
• M3: 1,343,239 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.5

Radius: 14.3

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.05 AU - 3.07 AU

Year: 3695 Days

Day: 14.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,538,418 km

• M1: 177,872 km (0.084 R)
• M2: 856,298 km (0.099 R)
• M3: 1,492,538 km (0.098 R)
• M4: 2,223,922 km (0.093 R)
• M5: 4,365,565 km (0.027 R)
• M6: 6,066,792 km (0.077 R)
• M7: 9,025,838 km (0.084 R)
• M8: 10,249,997 km (0.086 R)
• M9: 13,695,236 km (0.101 R)
• M10: 14,740,925 km (0.105 R)
• M11: 16,879,427 km (0.099 R)
• M12: 19,959,198 km (0.097 R)
• M13: 21,897,239 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.6

Radius: 12.5

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3.53 AU - 4.43 AU

Year: 5481 Days

Day: 6.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 49,538,418 km

• M1: 156,031 km (0.049 R)
• M2: 597,943 km (0.033 R)
• M3: 1,188,256 km (0.09 R)
• M4: 1,845,589 km (0.094 R)
• M5: 2,274,785 km (0.091 R)
• M6: 2,915,214 km (0.046 R)
• M7: 3,318,978 km (0.109 R)
• M8: 3,804,274 km (0.094 R)
• M9: 4,892,598 km (0.066 R)
• M10: 5,326,283 km (0.09 R)
• M11: 5,844,938 km (0.099 R)
• M12: 6,588,889 km (0.09 R)
• M13: 6,983,977 km (0.087 R)
• M14: 8,570,761 km (0.102 R)
• M15: 12,003,584 km (0.054 R)
• M16: 13,051,367 km (0.081 R)
• M17: 14,597,311 km (0.066 R)
• M18: 15,044,609 km (0.06 R)
• M19: 17,233,226 km (0.108 R)
• M20: 18,178,236 km (0.112 R)
• M21: 22,751,443 km (0.12 R)
• M22: 24,043,071 km (0.076 R)
• M23: 24,904,455 km (0.073 R)
• M24: 26,606,131 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.6

Radius: 10.7

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.05 AU - 5.47 AU

Year: 7168 Days

Day: 12.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 49,538,418 km

• M1: 133,142 km (0.073 R)
• M2: 515,065 km (0.114 R)
• M3: 968,945 km (0.081 R)
• M4: 1,364,183 km (0.051 R)
• M5: 1,970,802 km (0.066 R)
• M6: 2,337,467 km (0.096 R)
• M7: 2,904,443 km (0.042 R)
• M8: 3,722,444 km (0.066 R)
• M9: 4,340,133 km (0.065 R)
• M10: 5,939,783 km (0.098 R)
• M11: 7,328,052 km (0.058 R)
• M12: 8,794,859 km (0.068 R)
• M13: 9,179,325 km (0.035 R)
• M14: 13,555,811 km (0.093 R)
• M15: 15,015,737 km (0.1 R)
• M16: 17,632,802 km (0.036 R)
• M17: 18,872,519 km (0.093 R)
• M18: 19,226,917 km (0.1 R)
• M19: 19,585,952 km (0.079 R)
• M20: 20,095,931 km (0.113 R)
• M21: 22,068,079 km (0.11 R)
• M22: 25,607,565 km (0.095 R)
• M23: 28,105,700 km (0.113 R)
• M24: 29,508,778 km (0.111 R)
• M25: 34,628,766 km (0.113 R)
• M26: 36,568,751 km (0.054 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 417.7

Radius: 6.4

Gravity: 10.2 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.72 AU - 6.48 AU

Year: 9147 Days

Day: 15.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 49,538,418 km

• M1: 80,334 km (0.108 R)
• M2: 298,747 km (0.107 R)
• M3: 532,568 km (0.052 R)
• M4: 743,651 km (0.115 R)
• M5: 1,196,334 km (0.069 R)
• M6: 1,440,777 km (0.083 R)
• M7: 2,144,037 km (0.042 R)
• M8: 2,453,106 km (0.106 R)
• M9: 3,656,322 km (0.079 R)
• M10: 4,175,875 km (0.111 R)
• M11: 4,743,599 km (0.108 R)
• M12: 6,473,549 km (0.094 R)
• M13: 7,460,296 km (0.077 R)
• M14: 8,501,797 km (0.093 R)
• M15: 14,168,414 km (0.108 R)
• M16: 16,204,591 km (0.11 R)
• M17: 18,357,903 km (0.089 R)
• M18: 20,543,378 km (0.063 R)
• M19: 21,308,721 km (0.071 R)
• M20: 24,053,393 km (0.116 R)
• M21: 26,126,969 km (0.092 R)
• M22: 27,850,935 km (0.098 R)
• M23: 28,410,580 km (0.117 R)
• M24: 28,882,861 km (0.042 R)
• M25: 33,161,809 km (0.081 R)
• M26: 34,427,407 km (0.113 R)
• M27: 36,164,388 km (0.063 R)
• M28: 36,496,495 km (0.089 R)
• M29: 36,942,297 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 572.6

Radius: 3.5

Gravity: 46.74 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 5.61 AU - 7.43 AU

Year: 11492 Days

Day: 19.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,538,418 km

• M1: 43,982 km (0.065 R)
• M2: 341,981 km (0.077 R)
• M3: 2,570,989 km (0.038 R)
• M4: 3,117,171 km (0.118 R)
• M5: 3,380,463 km (0.087 R)
• M6: 4,675,083 km (0.118 R)
• M7: 6,156,401 km (0.083 R)
• M8: 8,188,688 km (0.059 R)
• M9: 8,735,618 km (0.104 R)
• M10: 10,003,460 km (0.064 R)
• M11: 12,069,257 km (0.086 R)
• M12: 17,758,314 km (0.047 R)
• M13: 22,639,543 km (0.093 R)
• M14: 26,249,789 km (0.111 R)
• M15: 27,433,407 km (0.057 R)
• M16: 28,755,254 km (0.052 R)
• M17: 29,170,238 km (0.068 R)
• M18: 41,416,171 km (0.097 R)
• M19: 42,747,741 km (0.109 R)
• M20: 43,017,466 km (0.056 R)
• M21: 46,485,294 km (0.059 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 12,279 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit