🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.6

Radius: 11.8

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.65 AU - 0.87 AU

Year: 428 Days

Day: 6 Hours

Environment

Temp: -144 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 88,292,327 km

• M1: 146,756 km (0.116 R)
• M2: 582,534 km (0.034 R)
• M3: 1,195,137 km (0.088 R)
• M4: 1,801,158 km (0.064 R)
• M5: 2,220,481 km (0.095 R)
• M6: 2,650,126 km (0.083 R)
• M7: 3,938,314 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.5

Radius: 14.7

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.99 AU - 1.27 AU

Year: 776 Days

Day: 8.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 115.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 88,292,327 km

• M1: 182,809 km (0.093 R)
• M2: 688,749 km (0.081 R)
• M3: 1,275,322 km (0.113 R)
• M4: 2,072,379 km (0.064 R)
• M5: 2,535,086 km (0.09 R)
• M6: 3,079,323 km (0.053 R)
• M7: 3,635,827 km (0.085 R)
• M8: 4,437,372 km (0.088 R)
• M9: 5,218,273 km (0.114 R)
• M10: 5,831,026 km (0.075 R)
• M11: 6,394,262 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.5

Radius: 9.2

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.18 AU - 1.26 AU

Year: 870 Days

Day: 11.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 88,292,327 km

• M1: 114,442 km (0.066 R)
• M2: 467,045 km (0.119 R)
• M3: 813,663 km (0.103 R)
• M4: 1,314,666 km (0.117 R)
• M5: 1,777,372 km (0.101 R)
• M6: 2,169,319 km (0.102 R)
• M7: 2,596,720 km (0.095 R)
• M8: 3,342,914 km (0.106 R)
• M9: 4,031,663 km (0.097 R)
• M10: 4,567,971 km (0.108 R)
• M11: 6,304,952 km (0.072 R)
• M12: 6,608,486 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.2

Radius: 14.4

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.22 AU - 1.44 AU

Year: 990 Days

Day: 11.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 88,292,327 km

• M1: 179,218 km (0.104 R)
• M2: 628,012 km (0.119 R)
• M3: 1,128,566 km (0.059 R)
• M4: 1,648,868 km (0.081 R)
• M5: 2,138,502 km (0.101 R)
• M6: 3,064,961 km (0.109 R)
• M7: 3,576,287 km (0.117 R)
• M8: 4,543,587 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.3

Radius: 10.9

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.46 AU - 1.96 AU

Year: 1444 Days

Day: 11.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 88,292,327 km

• M1: 135,685 km (0.069 R)
• M2: 490,531 km (0.108 R)
• M3: 1,674,299 km (0.025 R)
• M4: 3,561,028 km (0.053 R)
• M5: 3,905,402 km (0.096 R)
• M6: 6,038,219 km (0.069 R)
• M7: 7,236,049 km (0.092 R)
• M8: 7,767,271 km (0.099 R)
• M9: 8,144,108 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.1

Radius: 14.8

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.46 AU - 2.24 AU

Year: 1625 Days

Day: 6.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 88,292,327 km

• M1: 184,454 km (0.04 R)
• M2: 654,640 km (0.045 R)
• M3: 1,131,409 km (0.103 R)
• M4: 1,982,022 km (0.114 R)
• M5: 2,651,921 km (0.053 R)
• M6: 3,670,234 km (0.114 R)
• M7: 4,242,296 km (0.111 R)
• M8: 5,126,420 km (0.095 R)
• M9: 5,635,801 km (0.111 R)
• M10: 6,602,951 km (0.062 R)
• M11: 8,619,979 km (0.093 R)
• M12: 9,538,959 km (0.082 R)
• M13: 10,210,055 km (0.101 R)
• M14: 10,840,909 km (0.107 R)
• M15: 12,532,562 km (0.077 R)
• M16: 13,462,312 km (0.106 R)
• M17: 14,394,307 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.5

Radius: 10.2

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 3.3 AU - 4.4 AU

Year: 4878 Days

Day: 14.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 88,292,327 km

• M1: 126,859 km (0.096 R)
• M2: 577,448 km (0.05 R)
• M3: 1,246,001 km (0.086 R)
• M4: 2,630,529 km (0.105 R)
• M5: 4,166,899 km (0.103 R)
• M6: 5,190,149 km (0.107 R)
• M7: 5,760,864 km (0.119 R)
• M8: 6,784,712 km (0.052 R)
• M9: 7,182,792 km (0.117 R)
• M10: 8,436,871 km (0.109 R)
• M11: 11,120,358 km (0.066 R)
• M12: 12,025,126 km (0.109 R)
• M13: 13,212,634 km (0.073 R)
• M14: 13,641,381 km (0.078 R)
• M15: 15,397,810 km (0.061 R)
• M16: 16,576,042 km (0.084 R)
• M17: 16,907,551 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 208.5

Radius: 3.2

Gravity: 20.36 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 5.71 AU - 6.37 AU

Year: 9585 Days

Day: 22.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 88,292,327 km

• M1: 73,004 km (0.098 R)
• M2: 282,740 km (0.115 R)
• M3: 546,780 km (0.057 R)
• M4: 868,266 km (0.105 R)
• M5: 1,027,588 km (0.075 R)
• M6: 1,314,068 km (0.037 R)
• M7: 1,500,317 km (0.083 R)
• M8: 1,677,441 km (0.035 R)
• M9: 1,983,817 km (0.061 R)
• M10: 2,150,320 km (0.036 R)
• M11: 4,595,497 km (0.104 R)
• M12: 5,051,621 km (0.085 R)
• M13: 5,333,762 km (0.113 R)
• M14: 6,469,061 km (0.114 R)
• M15: 7,464,335 km (0.114 R)
• M16: 9,412,848 km (0.089 R)
• M17: 10,323,450 km (0.113 R)
• M18: 11,530,256 km (0.089 R)
• M19: 15,415,313 km (0.113 R)
• M20: 16,007,421 km (0.112 R)
• M21: 16,430,783 km (0.105 R)
• M22: 17,489,936 km (0.062 R)
• M23: 30,506,297 km (0.035 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 996.7

Radius: 7.8

Gravity: 16.38 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 8.44 AU - 11.76 AU

Year: 20725 Days

Day: 20.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,292,327 km

• M1: 97,089 km (0.058 R)
• M2: 394,639 km (0.08 R)
• M3: 813,214 km (0.083 R)
• M4: 1,362,537 km (0.101 R)
• M5: 1,991,896 km (0.098 R)
• M6: 3,209,174 km (0.055 R)
• M7: 3,502,685 km (0.088 R)
• M8: 11,121,405 km (0.1 R)
• M9: 12,859,134 km (0.105 R)
• M10: 13,830,922 km (0.092 R)
• M11: 14,373,962 km (0.086 R)
• M12: 32,605,903 km (0.097 R)
• M13: 35,835,871 km (0.107 R)
• M14: 42,111,501 km (0.116 R)
• M15: 45,762,886 km (0.079 R)
• M16: 47,665,472 km (0.12 R)
• M17: 49,081,715 km (0.109 R)
• M18: 50,891,400 km (0.109 R)
• M19: 59,995,029 km (0.109 R)
• M20: 62,062,621 km (0.065 R)
• M21: 66,997,556 km (0.101 R)
• M22: 69,899,455 km (0.043 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 10,428 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit