🌌 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: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743

Radius: 13.8

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.65 AU - 0.85 AU

Year: 433 Days

Day: 10.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,544,399 km

• M1: 172,038 km (0.099 R)
• M2: 654,191 km (0.085 R)
• M3: 1,180,626 km (0.098 R)
• M4: 2,266,408 km (0.074 R)
• M5: 2,887,389 km (0.118 R)
• M6: 3,378,668 km (0.09 R)
• M7: 3,860,822 km (0.11 R)
• M8: 4,318,591 km (0.027 R)
• M9: 5,426,513 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.4

Radius: 8.7

Gravity: 11.87 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.73 AU - 0.93 AU

Year: 504 Days

Day: 8.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,544,399 km

• M1: 108,608 km (0.083 R)
• M2: 400,324 km (0.064 R)
• M3: 742,305 km (0.084 R)
• M4: 1,027,438 km (0.102 R)
• M5: 1,534,725 km (0.103 R)
• M6: 1,965,866 km (0.083 R)
• M7: 2,435,304 km (0.081 R)
• M8: 2,708,021 km (0.09 R)
• M9: 3,167,885 km (0.056 R)
• M10: 3,559,233 km (0.105 R)
• M11: 4,258,752 km (0.091 R)
• M12: 4,563,184 km (0.083 R)
• M13: 5,063,738 km (0.077 R)
• M14: 5,440,725 km (0.1 R)
• M15: 6,212,800 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.8

Radius: 10.3

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.46 AU - 1.9 AU

Year: 1452 Days

Day: 10.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,544,399 km

• M1: 128,355 km (0.12 R)
• M2: 494,870 km (0.057 R)
• M3: 2,174,704 km (0.052 R)
• M4: 2,880,357 km (0.089 R)
• M5: 3,534,848 km (0.081 R)
• M6: 3,989,027 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.8

Radius: 11.8

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.75 AU - 2.07 AU

Year: 1760 Days

Day: 13.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,544,399 km

• M1: 146,756 km (0.11 R)
• M2: 552,315 km (0.045 R)
• M3: 1,090,868 km (0.065 R)
• M4: 1,545,496 km (0.038 R)
• M5: 2,061,309 km (0.029 R)
• M6: 2,861,059 km (0.109 R)
• M7: 3,431,326 km (0.077 R)
• M8: 3,886,104 km (0.12 R)
• M9: 4,701,263 km (0.078 R)
• M10: 5,776,871 km (0.093 R)
• M11: 6,383,192 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535

Radius: 13.3

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.06 AU - 3.06 AU

Year: 2731 Days

Day: 11.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,544,399 km

• M1: 165,605 km (0.103 R)
• M2: 605,423 km (0.116 R)
• M3: 1,024,745 km (0.106 R)
• M4: 1,671,008 km (0.037 R)
• M5: 2,305,752 km (0.103 R)
• M6: 4,618,834 km (0.105 R)
• M7: 6,111,073 km (0.065 R)
• M8: 6,618,958 km (0.051 R)
• M9: 7,568,306 km (0.117 R)
• M10: 10,135,555 km (0.102 R)
• M11: 11,717,253 km (0.027 R)
• M12: 12,802,137 km (0.038 R)
• M13: 14,600,603 km (0.112 R)
• M14: 16,510,967 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117

Radius: 5.8

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 6.57 AU - 7.19 AU

Year: 12034 Days

Day: 21.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,544,399 km

• M1: 72,106 km (0.075 R)
• M2: 442,062 km (0.114 R)
• M3: 643,420 km (0.052 R)
• M4: 1,150,856 km (0.092 R)
• M5: 1,568,085 km (0.114 R)
• M6: 2,125,786 km (0.119 R)
• M7: 2,646,536 km (0.109 R)
• M8: 3,581,971 km (0.07 R)
• M9: 4,366,163 km (0.056 R)
• M10: 4,566,325 km (0.084 R)
• M11: 5,039,055 km (0.096 R)
• M12: 6,986,370 km (0.084 R)
• M13: 7,867,352 km (0.073 R)
• M14: 9,262,801 km (0.117 R)
• M15: 10,724,971 km (0.114 R)
• M16: 11,229,265 km (0.088 R)
• M17: 13,882,832 km (0.083 R)
• M18: 14,536,874 km (0.112 R)
• M19: 15,614,278 km (0.118 R)
• M20: 16,926,999 km (0.082 R)
• M21: 17,173,387 km (0.093 R)
• M22: 17,484,700 km (0.091 R)
• M23: 18,441,229 km (0.108 R)
• M24: 20,667,544 km (0.083 R)
• M25: 25,003,639 km (0.108 R)
• M26: 25,564,780 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 675.1

Radius: 5.9

Gravity: 19.39 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 6.41 AU - 10.41 AU

Year: 16264 Days

Day: 19.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,544,399 km

• M1: 77,641 km (0.042 R)
• M2: 262,095 km (0.101 R)
• M3: 525,388 km (0.115 R)
• M4: 784,641 km (0.103 R)
• M5: 972,985 km (0.08 R)
• M6: 2,293,934 km (0.051 R)
• M7: 2,709,367 km (0.089 R)
• M8: 3,604,261 km (0.109 R)
• M9: 4,783,242 km (0.09 R)
• M10: 7,921,207 km (0.105 R)
• M11: 9,663,274 km (0.066 R)
• M12: 14,810,937 km (0.1 R)
• M13: 16,393,982 km (0.119 R)
• M14: 20,520,190 km (0.092 R)
• M15: 31,104,539 km (0.103 R)
• M16: 43,465,961 km (0.064 R)
• M17: 44,369,980 km (0.061 R)
• M18: 45,749,422 km (0.081 R)
• M19: 53,419,904 km (0.12 R)
• M20: 54,980,359 km (0.113 R)
• M21: 60,774,584 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 182.2

Radius: 4.4

Gravity: 9.41 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 7.26 AU - 9.92 AU

Year: 16789 Days

Day: 23.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,544,399 km

• M1: 55,501 km (0.119 R)
• M2: 372,200 km (0.066 R)
• M3: 648,507 km (0.08 R)
• M4: 2,441,138 km (0.085 R)
• M5: 2,858,965 km (0.092 R)
• M6: 4,371,250 km (0.117 R)
• M7: 5,655,697 km (0.101 R)
• M8: 6,677,002 km (0.091 R)
• M9: 7,172,620 km (0.113 R)
• M10: 8,941,315 km (0.109 R)
• M11: 14,780,718 km (0.109 R)
• M12: 15,752,057 km (0.053 R)
• M13: 25,192,132 km (0.087 R)
• M14: 26,668,663 km (0.071 R)
• M15: 27,910,026 km (0.042 R)
• M16: 33,589,360 km (0.094 R)
• M17: 35,489,252 km (0.107 R)
• M18: 41,870,200 km (0.096 R)
• M19: 42,380,778 km (0.103 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 260 - 15,540 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit