🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.1

Radius: 9.2

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.7 AU - 0.92 AU

Year: 471 Days

Day: 6.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,938,618 km

• M1: 117,285 km (0.038 R)
• M2: 445,353 km (0.097 R)
• M3: 889,808 km (0.033 R)
• M4: 1,186,012 km (0.097 R)
• M5: 1,509,592 km (0.112 R)
• M6: 1,905,877 km (0.092 R)
• M7: 2,205,372 km (0.081 R)
• M8: 2,536,581 km (0.033 R)
• M9: 3,027,263 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.9

Radius: 8.8

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.84 AU - 1.24 AU

Year: 685 Days

Day: 11.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,938,618 km

• M1: 109,506 km (0.061 R)
• M2: 967,449 km (0.057 R)
• M3: 1,309,281 km (0.033 R)
• M4: 1,739,374 km (0.065 R)
• M5: 2,840,265 km (0.097 R)
• M6: 3,164,893 km (0.057 R)
• M7: 3,793,054 km (0.059 R)
• M8: 4,101,076 km (0.065 R)
• M9: 5,194,188 km (0.118 R)
• M10: 5,592,716 km (0.106 R)
• M11: 6,124,238 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.5

Radius: 10.6

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.85 AU - 1.27 AU

Year: 705 Days

Day: 6.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 30,938,618 km

• M1: 132,245 km (0.115 R)
• M2: 591,360 km (0.115 R)
• M3: 1,022,202 km (0.104 R)
• M4: 1,438,683 km (0.091 R)
• M5: 1,897,649 km (0.083 R)
• M6: 2,921,497 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.4

Radius: 11.9

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.91 AU - 1.49 AU

Year: 849 Days

Day: 10.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,938,618 km

• M1: 147,952 km (0.067 R)
• M2: 558,898 km (0.118 R)
• M3: 1,133,503 km (0.069 R)
• M4: 1,854,116 km (0.12 R)
• M5: 3,187,183 km (0.114 R)
• M6: 3,819,084 km (0.112 R)
• M7: 4,246,036 km (0.052 R)
• M8: 4,897,834 km (0.117 R)
• M9: 5,282,301 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.7

Radius: 11.3

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.44 AU - 1.84 AU

Year: 1356 Days

Day: 5.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 30,938,618 km

• M1: 140,622 km (0.116 R)
• M2: 616,194 km (0.076 R)
• M3: 1,248,544 km (0.096 R)
• M4: 1,816,268 km (0.037 R)
• M5: 2,350,183 km (0.053 R)
• M6: 2,775,639 km (0.09 R)
• M7: 3,238,046 km (0.076 R)
• M8: 4,532,666 km (0.036 R)
• M9: 5,969,105 km (0.12 R)
• M10: 6,532,789 km (0.107 R)
• M11: 6,960,340 km (0.047 R)
• M12: 7,406,591 km (0.077 R)
• M13: 8,138,723 km (0.032 R)
• M14: 8,976,171 km (0.103 R)
• M15: 9,445,610 km (0.116 R)
• M16: 9,870,019 km (0.113 R)
• M17: 10,306,994 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.1

Radius: 12.7

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.62 AU - 2.02 AU

Year: 1585 Days

Day: 14.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,938,618 km

• M1: 157,975 km (0.073 R)
• M2: 614,548 km (0.042 R)
• M3: 1,013,974 km (0.046 R)
• M4: 1,412,503 km (0.071 R)
• M5: 1,831,976 km (0.096 R)
• M6: 2,439,044 km (0.106 R)
• M7: 2,955,904 km (0.108 R)
• M8: 3,768,370 km (0.087 R)
• M9: 4,336,693 km (0.085 R)
• M10: 4,927,455 km (0.063 R)
• M11: 6,331,580 km (0.072 R)
• M12: 6,811,490 km (0.117 R)
• M13: 7,474,209 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.3

Radius: 11.9

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.61 AU - 5.45 AU

Year: 6225 Days

Day: 12.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 30,938,618 km

• M1: 147,952 km (0.114 R)
• M2: 664,514 km (0.032 R)
• M3: 1,254,528 km (0.094 R)
• M4: 1,850,974 km (0.107 R)
• M5: 2,579,067 km (0.111 R)
• M6: 3,223,834 km (0.102 R)
• M7: 4,603,426 km (0.112 R)
• M8: 5,383,429 km (0.108 R)
• M9: 5,910,462 km (0.097 R)
• M10: 6,280,717 km (0.1 R)
• M11: 7,486,326 km (0.035 R)
• M12: 9,533,573 km (0.115 R)
• M13: 10,529,147 km (0.104 R)
• M14: 14,536,126 km (0.115 R)
• M15: 15,042,515 km (0.116 R)
• M16: 15,619,065 km (0.103 R)
• M17: 16,270,115 km (0.054 R)
• M18: 18,924,131 km (0.1 R)
• M19: 20,007,070 km (0.072 R)
• M20: 20,917,073 km (0.086 R)
• M21: 22,519,566 km (0.099 R)
• M22: 26,463,863 km (0.117 R)
• M23: 27,050,437 km (0.088 R)
• M24: 27,903,593 km (0.118 R)
• M25: 28,423,895 km (0.103 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 20,263 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit