🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200

Radius: 9.3

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.55 AU - 0.67 AU

Year: 329 Days

Day: 11.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,648,656 km

• M1: 115,639 km (0.104 R)
• M2: 470,336 km (0.084 R)
• M3: 902,823 km (0.097 R)
• M4: 1,266,496 km (0.072 R)
• M5: 1,609,673 km (0.112 R)
• M6: 1,968,409 km (0.062 R)
• M7: 2,380,401 km (0.063 R)
• M8: 2,747,365 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.3

Radius: 14.5

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.56 AU - 0.94 AU

Year: 448 Days

Day: 8.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,648,656 km

• M1: 180,415 km (0.067 R)
• M2: 647,609 km (0.063 R)
• M3: 1,162,076 km (0.092 R)
• M4: 1,667,867 km (0.06 R)
• M5: 2,460,436 km (0.118 R)
• M6: 2,929,126 km (0.094 R)
• M7: 3,603,214 km (0.075 R)
• M8: 4,144,759 km (0.117 R)
• M9: 5,393,302 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.9

Radius: 9.4

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.81 AU - 1.17 AU

Year: 680 Days

Day: 5 Hours

Environment

Temp: -171 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,648,656 km

• M1: 116,986 km (0.118 R)
• M2: 574,456 km (0.095 R)
• M3: 906,563 km (0.096 R)
• M4: 1,877,004 km (0.097 R)
• M5: 2,216,592 km (0.115 R)
• M6: 3,160,704 km (0.096 R)
• M7: 4,638,432 km (0.084 R)
• M8: 5,695,939 km (0.076 R)
• M9: 6,281,465 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.4

Radius: 11.7

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.19 AU - 1.87 AU

Year: 1306 Days

Day: 10.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,648,656 km

• M1: 145,559 km (0.103 R)
• M2: 519,853 km (0.114 R)
• M3: 924,216 km (0.077 R)
• M4: 1,443,470 km (0.068 R)
• M5: 1,840,353 km (0.039 R)
• M6: 2,328,640 km (0.119 R)
• M7: 2,840,116 km (0.042 R)
• M8: 3,344,260 km (0.116 R)
• M9: 3,946,392 km (0.047 R)
• M10: 4,519,052 km (0.092 R)
• M11: 5,068,825 km (0.097 R)
• M12: 5,679,633 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.4

Radius: 10.1

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.4 AU - 2.76 AU

Year: 2860 Days

Day: 8.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,648,656 km

• M1: 128,654 km (0.096 R)
• M2: 672,442 km (0.107 R)
• M3: 1,298,659 km (0.108 R)
• M4: 2,757,986 km (0.087 R)
• M5: 5,699,679 km (0.069 R)
• M6: 7,044,713 km (0.101 R)
• M7: 8,001,392 km (0.047 R)
• M8: 8,717,966 km (0.107 R)
• M9: 11,012,498 km (0.072 R)
• M10: 11,820,027 km (0.104 R)
• M11: 15,877,420 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.5

Radius: 14.9

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.29 AU - 3.33 AU

Year: 3251 Days

Day: 13 Hours

Environment

Temp: -213 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 22,648,656 km

• M1: 185,352 km (0.065 R)
• M2: 901,178 km (0.093 R)
• M3: 1,373,308 km (0.069 R)
• M4: 2,151,965 km (0.118 R)
• M5: 2,860,910 km (0.06 R)
• M6: 3,759,544 km (0.09 R)
• M7: 4,664,462 km (0.114 R)
• M8: 5,988,702 km (0.104 R)
• M9: 7,283,172 km (0.112 R)
• M10: 8,075,742 km (0.106 R)
• M11: 8,558,644 km (0.099 R)
• M12: 10,649,274 km (0.043 R)
• M13: 11,834,388 km (0.12 R)
• M14: 12,715,071 km (0.115 R)
• M15: 14,094,513 km (0.085 R)
• M16: 15,969,124 km (0.031 R)
• M17: 16,475,513 km (0.109 R)
• M18: 17,097,391 km (0.109 R)
• M19: 17,574,010 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363

Radius: 12.2

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 3.01 AU - 3.93 AU

Year: 4462 Days

Day: 13.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 22,648,656 km

• M1: 154,535 km (0.071 R)
• M2: 614,548 km (0.071 R)
• M3: 1,028,186 km (0.098 R)
• M4: 1,455,587 km (0.12 R)
• M5: 1,903,184 km (0.075 R)
• M6: 2,428,273 km (0.043 R)
• M7: 3,894,631 km (0.059 R)
• M8: 4,339,984 km (0.119 R)
• M9: 4,866,718 km (0.115 R)
• M10: 5,723,615 km (0.081 R)
• M11: 7,070,594 km (0.047 R)
• M12: 7,703,991 km (0.059 R)
• M13: 9,011,776 km (0.057 R)
• M14: 10,910,023 km (0.054 R)
• M15: 12,107,554 km (0.074 R)
• M16: 12,510,421 km (0.108 R)
• M17: 17,956,980 km (0.11 R)
• M18: 18,897,053 km (0.033 R)
• M19: 19,318,471 km (0.1 R)
• M20: 19,931,373 km (0.115 R)
• M21: 21,131,746 km (0.105 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: 528 - 15,507 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit