🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.6

Radius: 13.9

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.7 AU - 0.7 AU

Year: 372 Days

Day: 8.1 Hours

Environment

Temp: -131 °C

Axial Tilt: 60.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,140,543 km

• M1: 173,085 km (0.112 R)
• M2: 610,210 km (0.084 R)
• M3: 1,088,325 km (0.093 R)
• M4: 1,521,111 km (0.11 R)
• M5: 2,009,099 km (0.059 R)
• M6: 2,446,224 km (0.104 R)
• M7: 2,957,849 km (0.094 R)
• M8: 4,082,975 km (0.097 R)
• M9: 4,595,347 km (0.103 R)
• M10: 5,120,286 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.1

Radius: 8.3

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.04 AU - 1.34 AU

Year: 825 Days

Day: 14.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,140,543 km

• M1: 106,214 km (0.063 R)
• M2: 426,204 km (0.068 R)
• M3: 1,028,037 km (0.077 R)
• M4: 1,339,649 km (0.079 R)
• M5: 1,967,212 km (0.077 R)
• M6: 2,530,149 km (0.088 R)
• M7: 3,041,474 km (0.087 R)
• M8: 3,935,471 km (0.095 R)
• M9: 4,858,340 km (0.078 R)
• M10: 5,565,789 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.6

Radius: 11.6

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.17 AU - 1.29 AU

Year: 867 Days

Day: 12.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,140,543 km

• M1: 144,960 km (0.078 R)
• M2: 637,287 km (0.104 R)
• M3: 1,483,712 km (0.104 R)
• M4: 2,123,243 km (0.116 R)
• M5: 2,497,088 km (0.111 R)
• M6: 3,779,590 km (0.116 R)
• M7: 4,271,917 km (0.119 R)
• M8: 5,422,624 km (0.117 R)
• M9: 6,011,441 km (0.071 R)
• M10: 7,452,966 km (0.116 R)
• M11: 8,061,081 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.9

Radius: 11.1

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.12 AU - 1.62 AU

Year: 1020 Days

Day: 13.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,140,543 km

• M1: 138,976 km (0.074 R)
• M2: 541,095 km (0.091 R)
• M3: 1,403,378 km (0.098 R)
• M4: 1,876,855 km (0.117 R)
• M5: 2,444,429 km (0.109 R)
• M6: 2,988,965 km (0.043 R)
• M7: 3,347,701 km (0.029 R)
• M8: 4,170,041 km (0.066 R)
• M9: 4,584,427 km (0.087 R)
• M10: 7,378,167 km (0.12 R)
• M11: 9,537,762 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.4

Radius: 11.2

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.38 AU - 1.4 AU

Year: 1042 Days

Day: 14.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,140,543 km

• M1: 139,724 km (0.028 R)
• M2: 552,166 km (0.102 R)
• M3: 928,853 km (0.052 R)
• M4: 2,567,847 km (0.074 R)
• M5: 3,427,437 km (0.079 R)
• M6: 3,815,045 km (0.101 R)
• M7: 4,265,334 km (0.065 R)
• M8: 7,606,154 km (0.116 R)
• M9: 8,401,865 km (0.071 R)
• M10: 9,365,874 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.2

Radius: 8.3

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 5.31 AU - 5.53 AU

Year: 8023 Days

Day: 5.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,140,543 km

• M1: 108,159 km (0.074 R)
• M2: 593,604 km (0.094 R)
• M3: 885,171 km (0.092 R)
• M4: 1,480,720 km (0.071 R)
• M5: 2,634,119 km (0.094 R)
• M6: 3,149,035 km (0.1 R)
• M7: 6,127,678 km (0.102 R)
• M8: 8,838,392 km (0.089 R)
• M9: 11,899,463 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 125.6

Radius: 3.9

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 7.06 AU - 9.9 AU

Year: 15701 Days

Day: 20.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,140,543 km

• M1: 48,619 km (0.085 R)
• M2: 963,111 km (0.069 R)
• M3: 1,207,704 km (0.067 R)
• M4: 1,583,493 km (0.064 R)
• M5: 1,909,318 km (0.051 R)
• M6: 2,655,362 km (0.078 R)
• M7: 3,936,219 km (0.106 R)
• M8: 5,674,098 km (0.109 R)
• M9: 7,479,146 km (0.11 R)
• M10: 7,865,407 km (0.088 R)
• M11: 10,999,183 km (0.112 R)
• M12: 14,815,126 km (0.077 R)
• M13: 17,083,179 km (0.074 R)
• M14: 23,415,657 km (0.039 R)
• M15: 28,191,719 km (0.082 R)
• M16: 30,465,008 km (0.109 R)
• M17: 34,625,624 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 184.9

Radius: 6.1

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 8.52 AU - 10.18 AU

Year: 18178 Days

Day: 23.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 46,140,543 km

• M1: 75,846 km (0.114 R)
• M2: 286,630 km (0.117 R)
• M3: 1,176,288 km (0.098 R)
• M4: 1,761,515 km (0.102 R)
• M5: 3,135,871 km (0.098 R)
• M6: 3,893,733 km (0.085 R)
• M7: 4,301,537 km (0.066 R)
• M8: 5,106,823 km (0.098 R)
• M9: 14,180,083 km (0.06 R)
• M10: 14,432,604 km (0.117 R)
• M11: 14,881,996 km (0.092 R)
• M12: 15,673,818 km (0.112 R)
• M13: 17,848,971 km (0.078 R)
• M14: 19,200,139 km (0.118 R)
• M15: 21,851,911 km (0.085 R)
• M16: 22,873,963 km (0.12 R)
• M17: 23,927,282 km (0.06 R)
• M18: 24,465,984 km (0.107 R)
• M19: 25,381,672 km (0.104 R)
• M20: 30,096,848 km (0.115 R)
• M21: 30,935,643 km (0.036 R)
• M22: 36,180,245 km (0.089 R)
• M23: 38,336,399 km (0.087 R)
• M24: 41,214,213 km (0.066 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 390 - 16,769 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit