🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.75 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225

Radius: 14.8

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.21 AU - 1.77 AU

Year: 1234 Days

Day: 14.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,088,936 km

• M1: 187,596 km (0.079 R)
• M2: 866,471 km (0.105 R)
• M3: 1,488,050 km (0.049 R)
• M4: 2,445,776 km (0.039 R)
• M5: 3,443,743 km (0.091 R)
• M6: 4,731,930 km (0.1 R)
• M7: 5,315,512 km (0.061 R)
• M8: 7,316,533 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.2

Radius: 13

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.48 AU - 2.62 AU

Year: 2762 Days

Day: 10.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,088,936 km

• M1: 162,463 km (0.063 R)
• M2: 567,275 km (0.12 R)
• M3: 1,009,935 km (0.097 R)
• M4: 1,525,599 km (0.033 R)
• M5: 3,461,246 km (0.085 R)
• M6: 4,041,237 km (0.065 R)
• M7: 4,617,937 km (0.086 R)
• M8: 5,372,359 km (0.06 R)
• M9: 6,044,352 km (0.063 R)
• M10: 6,713,952 km (0.034 R)
• M11: 7,309,352 km (0.091 R)
• M12: 8,640,324 km (0.073 R)
• M13: 9,165,712 km (0.114 R)
• M14: 10,203,622 km (0.109 R)
• M15: 10,711,507 km (0.108 R)
• M16: 12,033,952 km (0.088 R)
• M17: 12,690,088 km (0.069 R)
• M18: 14,314,272 km (0.12 R)
• M19: 14,852,226 km (0.107 R)
• M20: 16,977,414 km (0.095 R)
• M21: 19,121,749 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.5

Radius: 9

Gravity: 10.9 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.64 AU - 3.48 AU

Year: 3631 Days

Day: 5.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,088,936 km

• M1: 112,198 km (0.119 R)
• M2: 421,118 km (0.063 R)
• M3: 1,324,689 km (0.089 R)
• M4: 1,753,287 km (0.086 R)
• M5: 2,701,438 km (0.11 R)
• M6: 3,108,793 km (0.095 R)
• M7: 3,743,238 km (0.117 R)
• M8: 4,024,781 km (0.05 R)
• M9: 4,343,724 km (0.047 R)
• M10: 4,879,135 km (0.059 R)
• M11: 5,849,726 km (0.105 R)
• M12: 6,752,549 km (0.085 R)
• M13: 8,422,809 km (0.058 R)
• M14: 8,870,705 km (0.07 R)
• M15: 9,177,979 km (0.119 R)
• M16: 13,442,865 km (0.117 R)
• M17: 14,473,145 km (0.063 R)
• M18: 15,334,679 km (0.085 R)
• M19: 15,777,938 km (0.05 R)
• M20: 16,632,291 km (0.109 R)
• M21: 17,517,163 km (0.104 R)
• M22: 18,185,716 km (0.073 R)
• M23: 24,836,986 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.9

Radius: 12.7

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.07 AU - 4.17 AU

Year: 4671 Days

Day: 8.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 50,088,936 km

• M1: 157,975 km (0.064 R)
• M2: 580,589 km (0.096 R)
• M3: 1,284,747 km (0.088 R)
• M4: 1,695,243 km (0.093 R)
• M5: 2,225,418 km (0.107 R)
• M6: 3,091,889 km (0.116 R)
• M7: 3,518,243 km (0.101 R)
• M8: 5,346,030 km (0.068 R)
• M9: 5,813,074 km (0.062 R)
• M10: 7,066,854 km (0.107 R)
• M11: 8,072,899 km (0.099 R)
• M12: 8,928,599 km (0.05 R)
• M13: 9,420,178 km (0.119 R)
• M14: 11,097,918 km (0.078 R)
• M15: 12,709,536 km (0.1 R)
• M16: 13,174,935 km (0.06 R)
• M17: 14,922,986 km (0.108 R)
• M18: 15,971,667 km (0.097 R)
• M19: 16,636,330 km (0.095 R)
• M20: 18,215,785 km (0.104 R)
• M21: 19,481,383 km (0.118 R)
• M22: 22,939,038 km (0.108 R)
• M23: 26,117,245 km (0.084 R)
• M24: 28,597,428 km (0.101 R)
• M25: 30,580,946 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.1

Radius: 11.2

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.56 AU - 5.46 AU

Year: 6496 Days

Day: 10.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,088,936 km

• M1: 140,173 km (0.077 R)
• M2: 904,918 km (0.065 R)
• M3: 1,256,473 km (0.098 R)
• M4: 1,895,405 km (0.064 R)
• M5: 3,085,905 km (0.034 R)
• M6: 3,522,132 km (0.062 R)
• M7: 4,254,414 km (0.067 R)
• M8: 4,796,856 km (0.087 R)
• M9: 6,081,153 km (0.095 R)
• M10: 7,168,730 km (0.113 R)
• M11: 8,494,765 km (0.099 R)
• M12: 10,847,940 km (0.081 R)
• M13: 14,621,247 km (0.07 R)
• M14: 20,397,520 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.3

Radius: 13

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 3.79 AU - 6.01 AU

Year: 7357 Days

Day: 8 Hours

Environment

Temp: -231 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,088,936 km

• M1: 243,097 km (0.097 R)
• M2: 1,205,310 km (0.109 R)
• M3: 3,195,710 km (0.066 R)
• M4: 4,831,712 km (0.115 R)
• M5: 6,017,724 km (0.105 R)
• M6: 6,445,424 km (0.115 R)
• M7: 7,714,164 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 230

Radius: 7.7

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 7.34 AU - 10.74 AU

Year: 18435 Days

Day: 19.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,088,936 km

• M1: 95,743 km (0.111 R)
• M2: 483,800 km (0.055 R)
• M3: 1,193,193 km (0.037 R)
• M4: 2,313,531 km (0.068 R)
• M5: 2,711,013 km (0.046 R)
• M6: 4,296,600 km (0.097 R)
• M7: 4,993,727 km (0.109 R)
• M8: 8,188,539 km (0.106 R)
• M9: 13,635,846 km (0.07 R)
• M10: 15,402,746 km (0.103 R)
• M11: 15,745,924 km (0.078 R)
• M12: 17,170,096 km (0.117 R)
• M13: 18,600,550 km (0.086 R)
• M14: 19,704,284 km (0.102 R)
• M15: 23,097,612 km (0.113 R)
• M16: 23,456,946 km (0.081 R)
• M17: 24,557,687 km (0.103 R)
• M18: 29,515,809 km (0.105 R)
• M19: 32,116,568 km (0.106 R)
• M20: 32,676,962 km (0.04 R)
• M21: 40,829,298 km (0.036 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 14,702 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit