🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.1

Radius: 14.9

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.44 AU - 0.6 AU

Year: 254 Days

Day: 10.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 141.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 78,572,628 km

• M1: 185,352 km (0.104 R)
• M2: 786,286 km (0.087 R)
• M3: 1,449,753 km (0.07 R)
• M4: 2,052,034 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202

Radius: 12.9

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.65 AU - 0.77 AU

Year: 406 Days

Day: 7.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 78,572,628 km

• M1: 161,117 km (0.109 R)
• M2: 664,663 km (0.028 R)
• M3: 1,360,892 km (0.112 R)
• M4: 1,832,873 km (0.112 R)
• M5: 2,305,902 km (0.109 R)
• M6: 2,789,851 km (0.075 R)
• M7: 3,555,193 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.8

Radius: 8.1

Gravity: 11.52 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.73 AU - 0.81 AU

Year: 458 Days

Day: 13.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 78,572,628 km

• M1: 100,829 km (0.114 R)
• M2: 382,372 km (0.092 R)
• M3: 673,340 km (0.057 R)
• M4: 1,003,951 km (0.071 R)
• M5: 1,268,889 km (0.059 R)
• M6: 1,721,722 km (0.085 R)
• M7: 2,187,270 km (0.106 R)
• M8: 2,650,725 km (0.077 R)
• M9: 3,040,278 km (0.061 R)
• M10: 3,356,976 km (0.103 R)
• M11: 3,747,875 km (0.117 R)
• M12: 4,225,392 km (0.08 R)
• M13: 4,486,440 km (0.054 R)
• M14: 4,789,226 km (0.096 R)
• M15: 5,219,470 km (0.104 R)
• M16: 5,850,922 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.7

Radius: 14.7

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.7 AU - 0.96 AU

Year: 513 Days

Day: 10.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,572,628 km

• M1: 188,493 km (0.105 R)
• M2: 963,560 km (0.095 R)
• M3: 1,475,334 km (0.104 R)
• M4: 2,102,149 km (0.079 R)
• M5: 3,318,081 km (0.116 R)
• M6: 3,824,170 km (0.096 R)
• M7: 4,665,958 km (0.113 R)
• M8: 5,576,261 km (0.101 R)
• M9: 6,334,572 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.2

Radius: 12.4

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.37 AU - 2.03 AU

Year: 1503 Days

Day: 9.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,572,628 km

• M1: 154,535 km (0.058 R)
• M2: 542,143 km (0.099 R)
• M3: 1,080,545 km (0.111 R)
• M4: 1,982,022 km (0.071 R)
• M5: 2,513,543 km (0.12 R)
• M6: 3,139,162 km (0.098 R)
• M7: 6,251,994 km (0.098 R)
• M8: 7,484,980 km (0.117 R)
• M9: 8,577,344 km (0.06 R)
• M10: 8,964,204 km (0.045 R)
• M11: 10,294,727 km (0.104 R)
• M12: 10,972,854 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.8

Radius: 11.4

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.43 AU - 3.55 AU

Year: 3507 Days

Day: 9.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,572,628 km

• M1: 141,968 km (0.068 R)
• M2: 535,710 km (0.062 R)
• M3: 1,110,615 km (0.114 R)
• M4: 1,734,737 km (0.1 R)
• M5: 2,115,015 km (0.061 R)
• M6: 2,551,691 km (0.1 R)
• M7: 3,204,237 km (0.099 R)
• M8: 3,724,987 km (0.107 R)
• M9: 4,680,319 km (0.094 R)
• M10: 5,105,476 km (0.087 R)
• M11: 5,845,088 km (0.106 R)
• M12: 6,920,846 km (0.1 R)
• M13: 8,393,937 km (0.111 R)
• M14: 9,240,960 km (0.094 R)
• M15: 11,480,440 km (0.111 R)
• M16: 11,951,075 km (0.083 R)
• M17: 12,794,208 km (0.088 R)
• M18: 13,300,298 km (0.111 R)
• M19: 13,771,830 km (0.072 R)
• M20: 14,205,814 km (0.054 R)
• M21: 14,899,050 km (0.096 R)
• M22: 15,770,907 km (0.071 R)
• M23: 16,676,423 km (0.086 R)
• M24: 20,089,498 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.2

Radius: 14.8

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 3.36 AU - 3.56 AU

Year: 4365 Days

Day: 10.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,572,628 km

• M1: 184,305 km (0.042 R)
• M2: 691,591 km (0.096 R)
• M3: 1,204,113 km (0.116 R)
• M4: 2,100,653 km (0.101 R)
• M5: 3,147,838 km (0.109 R)
• M6: 3,647,196 km (0.073 R)
• M7: 4,783,691 km (0.064 R)
• M8: 5,610,369 km (0.082 R)
• M9: 6,174,203 km (0.051 R)
• M10: 8,856,493 km (0.05 R)
• M11: 9,505,748 km (0.069 R)
• M12: 10,023,506 km (0.109 R)
• M13: 10,942,785 km (0.049 R)
• M14: 12,100,972 km (0.117 R)
• M15: 12,662,413 km (0.09 R)
• M16: 13,143,519 km (0.108 R)
• M17: 15,680,400 km (0.097 R)
• M18: 18,283,852 km (0.109 R)
• M19: 19,784,468 km (0.109 R)
• M20: 20,829,559 km (0.091 R)
• M21: 21,365,717 km (0.114 R)
• M22: 22,326,435 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 896.7

Radius: 4.5

Gravity: 44.28 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 8.88 AU - 9.14 AU

Year: 18343 Days

Day: 23.4 Hours

Environment

Temp: -240 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 78,572,628 km

• M1: 55,950 km (0.115 R)
• M2: 224,546 km (0.116 R)
• M3: 434,881 km (0.119 R)
• M4: 742,305 km (0.111 R)
• M5: 1,327,532 km (0.056 R)
• M6: 1,653,505 km (0.099 R)
• M7: 2,557,076 km (0.041 R)
• M8: 3,905,402 km (0.037 R)
• M9: 4,467,142 km (0.114 R)
• M10: 5,081,092 km (0.088 R)
• M11: 5,546,939 km (0.047 R)
• M12: 7,403,299 km (0.09 R)
• M13: 7,848,951 km (0.086 R)
• M14: 8,001,392 km (0.093 R)
• M15: 11,613,432 km (0.106 R)
• M16: 14,067,585 km (0.078 R)
• M17: 14,905,034 km (0.118 R)
• M18: 16,595,041 km (0.05 R)
• M19: 21,818,251 km (0.114 R)
• M20: 23,989,515 km (0.113 R)
• M21: 25,182,408 km (0.117 R)
• M22: 29,362,172 km (0.118 R)
• M23: 32,653,026 km (0.057 R)
• M24: 34,795,717 km (0.079 R)
• M25: 35,484,017 km (0.076 R)
• M26: 45,767,075 km (0.081 R)
• M27: 51,403,624 km (0.07 R)
• M28: 56,345,888 km (0.114 R)
• M29: 63,211,383 km (0.066 R)
• M30: 73,503,717 km (0.067 R)
• M31: 75,550,066 km (0.178 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: 546 - 10,680 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit