🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.3

Radius: 11.4

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.75 AU - 0.79 AU

Year: 436 Days

Day: 9.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,232,435 km

• M1: 141,819 km (0.087 R)
• M2: 540,946 km (0.047 R)
• M3: 947,104 km (0.098 R)
• M4: 1,475,933 km (0.07 R)
• M5: 1,841,251 km (0.093 R)
• M6: 2,205,372 km (0.031 R)
• M7: 2,865,098 km (0.088 R)
• M8: 3,857,082 km (0.1 R)
• M9: 4,248,580 km (0.111 R)
• M10: 4,681,516 km (0.111 R)
• M11: 5,128,065 km (0.048 R)
• M12: 5,859,898 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.3

Radius: 8.8

Gravity: 11.74 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.64 AU - 1.04 AU

Year: 497 Days

Day: 6 Hours

Environment

Temp: -153 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,232,435 km

• M1: 109,506 km (0.115 R)
• M2: 387,458 km (0.114 R)
• M3: 727,345 km (0.118 R)
• M4: 1,017,864 km (0.055 R)
• M5: 1,347,578 km (0.088 R)
• M6: 1,701,077 km (0.099 R)
• M7: 2,266,109 km (0.071 R)
• M8: 3,488,622 km (0.093 R)
• M9: 4,061,433 km (0.094 R)
• M10: 4,492,424 km (0.098 R)
• M11: 5,952,499 km (0.103 R)
• M12: 6,411,017 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.9

Radius: 14.1

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.85 AU - 1.01 AU

Year: 579 Days

Day: 9.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,232,435 km

• M1: 175,478 km (0.097 R)
• M2: 671,096 km (0.098 R)
• M3: 1,502,561 km (0.114 R)
• M4: 1,973,346 km (0.067 R)
• M5: 2,750,656 km (0.086 R)
• M6: 3,481,442 km (0.039 R)
• M7: 3,951,179 km (0.1 R)
• M8: 4,463,402 km (0.112 R)
• M9: 4,918,329 km (0.115 R)
• M10: 6,038,069 km (0.093 R)
• M11: 6,867,589 km (0.093 R)
• M12: 7,343,460 km (0.089 R)
• M13: 7,887,548 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.7

Radius: 9.8

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.52 AU - 2.4 AU

Year: 1772 Days

Day: 10.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,232,435 km

• M1: 126,410 km (0.11 R)
• M2: 516,262 km (0.092 R)
• M3: 906,413 km (0.103 R)
• M4: 1,232,836 km (0.038 R)
• M5: 1,669,363 km (0.073 R)
• M6: 2,027,650 km (0.097 R)
• M7: 2,385,039 km (0.072 R)
• M8: 3,391,833 km (0.076 R)
• M9: 3,754,159 km (0.112 R)
• M10: 4,356,290 km (0.11 R)
• M11: 5,729,150 km (0.119 R)
• M12: 7,342,563 km (0.109 R)
• M13: 7,803,923 km (0.116 R)
• M14: 8,880,728 km (0.073 R)
• M15: 10,550,988 km (0.039 R)
• M16: 10,952,958 km (0.079 R)
• M17: 11,983,238 km (0.107 R)
• M18: 13,712,440 km (0.113 R)
• M19: 15,696,257 km (0.029 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.5

Radius: 12.3

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.88 AU - 3.32 AU

Year: 3524 Days

Day: 7.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 134.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 48,232,435 km

• M1: 156,330 km (0.088 R)
• M2: 689,347 km (0.101 R)
• M3: 1,683,275 km (0.074 R)
• M4: 2,966,825 km (0.086 R)
• M5: 4,443,655 km (0.056 R)
• M6: 5,639,541 km (0.046 R)
• M7: 6,363,594 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.5

Radius: 8.2

Gravity: 11.3 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 4.67 AU - 4.85 AU

Year: 6705 Days

Day: 7.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,232,435 km

• M1: 102,175 km (0.097 R)
• M2: 370,255 km (0.102 R)
• M3: 1,007,392 km (0.106 R)
• M4: 1,298,061 km (0.097 R)
• M5: 4,113,193 km (0.117 R)
• M6: 4,671,493 km (0.072 R)
• M7: 5,618,298 km (0.072 R)
• M8: 10,559,814 km (0.113 R)
• M9: 12,073,147 km (0.053 R)
• M10: 12,500,099 km (0.1 R)
• M11: 14,726,863 km (0.116 R)
• M12: 15,337,821 km (0.112 R)
• M13: 30,297,010 km (0.106 R)
• M14: 30,986,207 km (0.101 R)
• M15: 31,988,812 km (0.094 R)
• M16: 35,126,627 km (0.102 R)
• M17: 37,666,799 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.7

Radius: 8.2

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.5 AU - 6.74 AU

Year: 8602 Days

Day: 7.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 174.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 48,232,435 km

• M1: 102,026 km (0.106 R)
• M2: 498,460 km (0.109 R)
• M3: 2,125,786 km (0.119 R)
• M4: 2,859,264 km (0.034 R)
• M5: 3,485,630 km (0.045 R)
• M6: 5,886,975 km (0.051 R)
• M7: 6,460,833 km (0.118 R)
• M8: 7,426,936 km (0.036 R)
• M9: 8,766,136 km (0.054 R)
• M10: 9,135,044 km (0.087 R)
• M11: 9,772,930 km (0.084 R)
• M12: 10,669,320 km (0.059 R)
• M13: 11,232,706 km (0.083 R)
• M14: 14,635,608 km (0.094 R)
• M15: 16,913,834 km (0.039 R)
• M16: 19,487,666 km (0.058 R)
• M17: 22,922,882 km (0.067 R)
• M18: 25,150,394 km (0.087 R)
• M19: 28,936,118 km (0.111 R)
• M20: 30,123,476 km (0.108 R)
• M21: 31,629,029 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 240.7

Radius: 4

Gravity: 15.04 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 8.54 AU - 9.18 AU

Year: 17028 Days

Day: 15.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 48,232,435 km

• M1: 49,816 km (0.115 R)
• M2: 190,588 km (0.077 R)
• M3: 364,869 km (0.081 R)
• M4: 848,669 km (0.112 R)
• M5: 1,457,532 km (0.102 R)
• M6: 1,765,554 km (0.088 R)
• M7: 1,893,759 km (0.059 R)
• M8: 2,316,523 km (0.094 R)
• M9: 3,619,520 km (0.082 R)
• M10: 3,827,462 km (0.109 R)
• M11: 4,182,158 km (0.112 R)
• M12: 6,108,829 km (0.048 R)
• M13: 7,182,493 km (0.078 R)
• M14: 7,345,555 km (0.114 R)
• M15: 9,646,669 km (0.114 R)
• M16: 10,986,318 km (0.109 R)
• M17: 14,347,483 km (0.111 R)
• M18: 18,335,313 km (0.111 R)
• M19: 18,948,066 km (0.098 R)
• M20: 22,218,575 km (0.088 R)
• M21: 22,477,978 km (0.099 R)
• M22: 24,442,796 km (0.083 R)
• M23: 26,133,102 km (0.116 R)
• M24: 28,000,233 km (0.053 R)
• M25: 30,696,585 km (0.094 R)
• M26: 33,221,798 km (0.102 R)
• M27: 35,527,400 km (0.12 R)
• M28: 36,598,820 km (0.12 R)
• M29: 44,571,040 km (0.085 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: 444 - 10,768 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit