🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.3

Radius: 12.4

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.65 AU - 0.93 AU

Year: 494 Days

Day: 9.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,197,556 km

• M1: 155,133 km (0.085 R)
• M2: 590,612 km (0.066 R)
• M3: 1,110,315 km (0.096 R)
• M4: 1,589,328 km (0.092 R)
• M5: 1,989,502 km (0.106 R)
• M6: 2,729,413 km (0.064 R)
• M7: 3,141,854 km (0.116 R)
• M8: 3,547,714 km (0.028 R)
• M9: 4,094,643 km (0.097 R)
• M10: 5,504,753 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.3

Radius: 10.5

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.23 AU - 1.37 AU

Year: 1042 Days

Day: 11.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,197,556 km

• M1: 130,599 km (0.106 R)
• M2: 466,147 km (0.05 R)
• M3: 1,107,323 km (0.107 R)
• M4: 1,742,965 km (0.081 R)
• M5: 2,948,424 km (0.117 R)
• M6: 4,033,159 km (0.098 R)
• M7: 4,558,098 km (0.085 R)
• M8: 5,384,177 km (0.068 R)
• M9: 6,537,577 km (0.082 R)
• M10: 7,331,941 km (0.041 R)
• M11: 8,439,265 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.5

Radius: 10.3

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.32 AU - 2.02 AU

Year: 1517 Days

Day: 11.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 17,197,556 km

• M1: 130,001 km (0.054 R)
• M2: 530,025 km (0.073 R)
• M3: 926,310 km (0.105 R)
• M4: 1,463,666 km (0.067 R)
• M5: 1,883,736 km (0.082 R)
• M6: 2,267,904 km (0.108 R)
• M7: 2,717,146 km (0.093 R)
• M8: 3,433,870 km (0.085 R)
• M9: 4,029,119 km (0.097 R)
• M10: 4,524,288 km (0.113 R)
• M11: 5,079,596 km (0.087 R)
• M12: 6,030,889 km (0.102 R)
• M13: 7,927,939 km (0.057 R)
• M14: 9,567,681 km (0.104 R)
• M15: 11,422,396 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.9

Radius: 11.4

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.68 AU - 2.12 AU

Year: 1841 Days

Day: 13.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 17,197,556 km

• M1: 142,417 km (0.031 R)
• M2: 651,050 km (0.109 R)
• M3: 1,191,547 km (0.086 R)
• M4: 1,561,802 km (0.112 R)
• M5: 3,124,052 km (0.103 R)
• M6: 3,790,810 km (0.092 R)
• M7: 4,158,522 km (0.082 R)
• M8: 4,734,324 km (0.039 R)
• M9: 5,184,015 km (0.067 R)
• M10: 6,070,532 km (0.062 R)
• M11: 6,498,681 km (0.106 R)
• M12: 7,192,516 km (0.095 R)
• M13: 7,817,536 km (0.102 R)
• M14: 9,373,354 km (0.11 R)
• M15: 10,905,236 km (0.085 R)
• M16: 11,654,123 km (0.062 R)
• M17: 12,678,719 km (0.07 R)
• M18: 13,977,527 km (0.118 R)
• M19: 14,459,083 km (0.069 R)
• M20: 14,816,173 km (0.078 R)
• M21: 15,501,780 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.1

Radius: 13.8

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.23 AU - 3.13 AU

Year: 3084 Days

Day: 10.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 17,197,556 km

• M1: 171,738 km (0.102 R)
• M2: 905,965 km (0.105 R)
• M3: 1,584,092 km (0.109 R)
• M4: 2,280,021 km (0.09 R)
• M5: 3,032,947 km (0.092 R)
• M6: 5,525,547 km (0.095 R)
• M7: 7,570,849 km (0.071 R)
• M8: 9,797,613 km (0.097 R)
• M9: 11,785,769 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.5

Radius: 15

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.11 AU - 3.35 AU

Year: 3171 Days

Day: 6.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 17,197,556 km

• M1: 186,549 km (0.072 R)
• M2: 688,898 km (0.063 R)
• M3: 1,403,378 km (0.069 R)
• M4: 3,630,142 km (0.035 R)
• M5: 4,840,688 km (0.101 R)
• M6: 5,926,768 km (0.119 R)
• M7: 6,864,448 km (0.044 R)
• M8: 7,929,136 km (0.049 R)
• M9: 8,612,798 km (0.09 R)
• M10: 10,350,078 km (0.055 R)
• M11: 10,940,541 km (0.105 R)
• M12: 11,631,534 km (0.071 R)
• M13: 14,058,759 km (0.082 R)
• M14: 14,692,007 km (0.102 R)
• M15: 15,202,734 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 35.5

Radius: 8

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 5.23 AU - 6.07 AU

Year: 9440 Days

Day: 16.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,197,556 km

• M1: 1,286,542 km (0.063 R)
• M2: 1,818,661 km (0.079 R)
• M3: 4,838,594 km (0.099 R)
• M4: 5,173,244 km (0.065 R)
• M5: 6,454,699 km (0.112 R)
• M6: 9,770,387 km (0.108 R)
• M7: 10,599,907 km (0.115 R)
• M8: 11,830,948 km (0.104 R)
• M9: 14,437,242 km (0.09 R)
• M10: 15,226,819 km (0.109 R)
• M11: 15,512,252 km (0.057 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: 380 - 18,928 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit