🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.1

Radius: 10.3

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.62 AU - 0.7 AU

Year: 364 Days

Day: 14.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,479,270 km

• M1: 128,056 km (0.115 R)
• M2: 581,786 km (0.03 R)
• M3: 1,044,642 km (0.109 R)
• M4: 1,420,731 km (0.108 R)
• M5: 1,827,787 km (0.113 R)
• M6: 2,260,274 km (0.048 R)
• M7: 2,953,511 km (0.114 R)
• M8: 3,367,448 km (0.065 R)
• M9: 3,857,381 km (0.117 R)
• M10: 4,245,438 km (0.064 R)
• M11: 5,161,725 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.7

Radius: 10.8

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.77 AU - 0.83 AU

Year: 485 Days

Day: 9.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,479,270 km

• M1: 134,339 km (0.078 R)
• M2: 574,905 km (0.049 R)
• M3: 946,207 km (0.077 R)
• M4: 1,433,596 km (0.064 R)
• M5: 2,914,615 km (0.063 R)
• M6: 3,542,328 km (0.102 R)
• M7: 4,051,559 km (0.054 R)
• M8: 4,595,198 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162

Radius: 15

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.78 AU - 0.88 AU

Year: 513 Days

Day: 9.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,479,270 km

• M1: 186,549 km (0.099 R)
• M2: 657,333 km (0.119 R)
• M3: 1,288,935 km (0.102 R)
• M4: 2,018,524 km (0.045 R)
• M5: 2,618,860 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.5

Radius: 10

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.56 AU - 1.8 AU

Year: 1477 Days

Day: 11.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,479,270 km

• M1: 124,465 km (0.11 R)
• M2: 527,781 km (0.06 R)
• M3: 889,359 km (0.084 R)
• M4: 1,263,952 km (0.078 R)
• M5: 1,784,703 km (0.065 R)
• M6: 2,331,782 km (0.113 R)
• M7: 3,031,451 km (0.054 R)
• M8: 3,610,245 km (0.093 R)
• M9: 4,527,280 km (0.063 R)
• M10: 5,796,618 km (0.08 R)
• M11: 6,124,238 km (0.043 R)
• M12: 7,129,236 km (0.063 R)
• M13: 7,451,320 km (0.106 R)
• M14: 7,782,979 km (0.115 R)
• M15: 8,991,730 km (0.078 R)
• M16: 12,926,902 km (0.097 R)
• M17: 13,285,936 km (0.092 R)
• M18: 13,982,015 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.4

Radius: 8

Gravity: 10.48 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.11 AU - 2.93 AU

Year: 2713 Days

Day: 14.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 66,479,270 km

• M1: 101,278 km (0.098 R)
• M2: 448,345 km (0.056 R)
• M3: 1,162,824 km (0.096 R)
• M4: 1,427,612 km (0.114 R)
• M5: 1,981,274 km (0.105 R)
• M6: 2,506,512 km (0.113 R)
• M7: 2,794,488 km (0.119 R)
• M8: 3,070,795 km (0.052 R)
• M9: 3,641,063 km (0.029 R)
• M10: 4,134,137 km (0.107 R)
• M11: 4,898,283 km (0.113 R)
• M12: 5,277,663 km (0.119 R)
• M13: 5,831,026 km (0.098 R)
• M14: 6,562,559 km (0.119 R)
• M15: 7,202,539 km (0.103 R)
• M16: 8,338,735 km (0.091 R)
• M17: 9,373,204 km (0.08 R)
• M18: 10,033,679 km (0.05 R)
• M19: 10,764,016 km (0.077 R)
• M20: 14,518,922 km (0.113 R)
• M21: 15,704,934 km (0.095 R)
• M22: 16,954,226 km (0.12 R)
• M23: 17,276,609 km (0.097 R)
• M24: 17,933,643 km (0.116 R)
• M25: 19,767,264 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.3

Radius: 9.3

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.5 AU - 3.7 AU

Year: 3702 Days

Day: 7.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,479,270 km

• M1: 115,639 km (0.12 R)
• M2: 1,204,562 km (0.096 R)
• M3: 1,618,051 km (0.089 R)
• M4: 1,953,449 km (0.086 R)
• M5: 2,575,776 km (0.076 R)
• M6: 3,054,489 km (0.106 R)
• M7: 3,456,309 km (0.038 R)
• M8: 4,782,345 km (0.081 R)
• M9: 5,073,911 km (0.118 R)
• M10: 6,595,770 km (0.059 R)
• M11: 7,112,780 km (0.059 R)
• M12: 8,471,129 km (0.107 R)
• M13: 10,759,378 km (0.026 R)
• M14: 12,314,747 km (0.116 R)
• M15: 13,240,908 km (0.119 R)
• M16: 14,665,229 km (0.081 R)
• M17: 14,972,353 km (0.104 R)
• M18: 17,700,420 km (0.042 R)
• M19: 18,165,669 km (0.11 R)
• M20: 19,672,419 km (0.063 R)
• M21: 21,456,972 km (0.091 R)
• M22: 21,919,529 km (0.066 R)
• M23: 22,727,806 km (0.112 R)
• M24: 23,070,385 km (0.035 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.7

Radius: 14.9

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 3.24 AU - 3.5 AU

Year: 4196 Days

Day: 10.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,479,270 km

• M1: 185,352 km (0.104 R)
• M2: 660,475 km (0.111 R)
• M3: 1,410,409 km (0.118 R)
• M4: 1,949,559 km (0.075 R)
• M5: 2,515,638 km (0.111 R)
• M6: 3,929,637 km (0.065 R)
• M7: 5,555,616 km (0.103 R)
• M8: 6,467,116 km (0.118 R)
• M9: 7,896,374 km (0.11 R)
• M10: 9,632,158 km (0.105 R)
• M11: 10,166,671 km (0.099 R)
• M12: 11,256,641 km (0.104 R)
• M13: 12,175,621 km (0.101 R)
• M14: 13,580,644 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 419.5

Radius: 7.5

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.34 AU - 11.3 AU

Year: 20872 Days

Day: 17.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 66,479,270 km

• M1: 93,349 km (0.062 R)
• M2: 555,906 km (0.104 R)
• M3: 1,057,657 km (0.112 R)
• M4: 1,314,816 km (0.046 R)
• M5: 2,939,598 km (0.115 R)
• M6: 3,650,338 km (0.108 R)
• M7: 4,247,084 km (0.105 R)
• M8: 4,906,960 km (0.109 R)
• M9: 5,520,161 km (0.108 R)
• M10: 6,555,079 km (0.073 R)
• M11: 7,808,261 km (0.118 R)
• M12: 9,644,724 km (0.117 R)
• M13: 10,958,493 km (0.111 R)
• M14: 12,648,201 km (0.067 R)
• M15: 14,006,699 km (0.052 R)
• M16: 14,504,411 km (0.1 R)
• M17: 15,013,941 km (0.116 R)
• M18: 16,068,457 km (0.101 R)
• M19: 16,378,723 km (0.083 R)
• M20: 18,324,542 km (0.103 R)
• M21: 20,600,973 km (0.117 R)
• M22: 20,875,186 km (0.076 R)
• M23: 23,059,465 km (0.11 R)
• M24: 28,212,064 km (0.032 R)
• M25: 28,663,700 km (0.104 R)
• M26: 31,355,115 km (0.06 R)
• M27: 32,700,000 km (0.048 R)
• M28: 32,948,632 km (0.098 R)
• M29: 34,210,490 km (0.114 R)
• M30: 38,051,864 km (0.06 R)
• M31: 38,742,109 km (0.094 R)
• M32: 41,151,083 km (0.095 R)
• M33: 43,357,951 km (0.12 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: 156 - 18,919 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit