🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.8 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.1

Radius: 14.8

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.59 AU - 1.61 AU

Year: 1350 Days

Day: 8.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,511,654 km

• M1: 184,005 km (0.077 R)
• M2: 683,961 km (0.105 R)
• M3: 1,246,449 km (0.073 R)
• M4: 2,078,662 km (0.1 R)
• M5: 2,960,392 km (0.11 R)
• M6: 3,728,727 km (0.119 R)
• M7: 5,239,815 km (0.106 R)
• M8: 6,896,462 km (0.103 R)
• M9: 7,387,891 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.5

Radius: 8

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 2.42 AU - 3.2 AU

Year: 3141 Days

Day: 14.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,511,654 km

• M1: 99,483 km (0.101 R)
• M2: 385,514 km (0.107 R)
• M3: 939,624 km (0.099 R)
• M4: 1,270,684 km (0.076 R)
• M5: 2,592,232 km (0.071 R)
• M6: 4,068,464 km (0.06 R)
• M7: 5,994,237 km (0.082 R)
• M8: 6,247,357 km (0.104 R)
• M9: 7,214,058 km (0.111 R)
• M10: 8,459,760 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.2

Radius: 9.1

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 4.17 AU - 4.87 AU

Year: 6408 Days

Day: 14.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 160.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,511,654 km

• M1: 113,096 km (0.087 R)
• M2: 446,550 km (0.099 R)
• M3: 1,129,913 km (0.118 R)
• M4: 1,523,954 km (0.065 R)
• M5: 1,848,431 km (0.055 R)
• M6: 2,344,049 km (0.109 R)
• M7: 3,507,023 km (0.038 R)
• M8: 4,017,152 km (0.118 R)
• M9: 6,741,778 km (0.092 R)
• M10: 8,113,441 km (0.066 R)
• M11: 9,514,125 km (0.028 R)
• M12: 10,506,857 km (0.115 R)
• M13: 16,689,737 km (0.104 R)
• M14: 19,954,411 km (0.052 R)
• M15: 21,130,998 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903

Radius: 13.5

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 4.25 AU - 4.81 AU

Year: 6429 Days

Day: 9 Hours

Environment

Temp: -231 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 21,511,654 km

• M1: 170,242 km (0.111 R)
• M2: 600,187 km (0.109 R)
• M3: 1,023,698 km (0.091 R)
• M4: 1,556,117 km (0.042 R)
• M5: 2,032,586 km (0.116 R)
• M6: 4,138,326 km (0.112 R)
• M7: 4,782,494 km (0.071 R)
• M8: 5,873,661 km (0.103 R)
• M9: 6,618,509 km (0.103 R)
• M10: 7,813,497 km (0.051 R)
• M11: 10,483,370 km (0.05 R)
• M12: 11,945,390 km (0.069 R)
• M13: 12,479,754 km (0.115 R)
• M14: 15,647,040 km (0.046 R)
• M15: 16,482,993 km (0.112 R)
• M16: 17,416,334 km (0.088 R)
• M17: 18,174,047 km (0.038 R)
• M18: 21,116,487 km (0.081 R)
• M19: 22,217,528 km (0.029 R)
• M20: 23,273,689 km (0.091 R)
• M21: 24,108,744 km (0.101 R)
• M22: 25,574,205 km (0.099 R)
• M23: 29,934,085 km (0.098 R)
• M24: 33,171,233 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.2

Radius: 11.4

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 4.19 AU - 5.79 AU

Year: 7433 Days

Day: 6.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 21,511,654 km

• M1: 141,819 km (0.089 R)
• M2: 1,251,685 km (0.12 R)
• M3: 1,665,772 km (0.034 R)
• M4: 2,719,689 km (0.04 R)
• M5: 3,358,023 km (0.11 R)
• M6: 3,964,194 km (0.103 R)
• M7: 4,500,502 km (0.116 R)
• M8: 4,964,106 km (0.068 R)
• M9: 6,194,100 km (0.08 R)
• M10: 7,819,780 km (0.102 R)
• M11: 8,622,223 km (0.066 R)
• M12: 9,202,214 km (0.084 R)
• M13: 9,618,993 km (0.082 R)
• M14: 10,590,183 km (0.115 R)
• M15: 10,945,179 km (0.03 R)
• M16: 11,625,699 km (0.117 R)
• M17: 12,614,242 km (0.098 R)
• M18: 14,821,110 km (0.118 R)
• M19: 16,316,191 km (0.088 R)
• M20: 18,052,723 km (0.112 R)
• M21: 18,706,915 km (0.112 R)
• M22: 21,082,529 km (0.073 R)
• M23: 21,483,601 km (0.06 R)
• M24: 22,970,155 km (0.073 R)
• M25: 27,173,556 km (0.046 R)
• M26: 28,616,277 km (0.079 R)
• M27: 30,618,346 km (0.11 R)
• M28: 31,863,598 km (0.093 R)
• M29: 35,461,726 km (0.102 R)
• M30: 36,143,893 km (0.111 R)
• M31: 37,651,839 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 675.8

Radius: 3.3

Gravity: 62.06 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 5.28 AU - 6.32 AU

Year: 9315 Days

Day: 17.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,511,654 km

• M1: 42,336 km (0.091 R)
• M2: 145,559 km (0.078 R)
• M3: 264,489 km (0.075 R)
• M4: 638,783 km (0.114 R)
• M5: 906,563 km (0.114 R)
• M6: 1,331,122 km (0.046 R)
• M7: 1,844,093 km (0.12 R)
• M8: 1,990,549 km (0.102 R)
• M9: 2,344,199 km (0.102 R)
• M10: 3,861,869 km (0.067 R)
• M11: 6,072,776 km (0.067 R)
• M12: 9,667,613 km (0.098 R)
• M13: 12,528,373 km (0.081 R)
• M14: 12,760,399 km (0.11 R)
• M15: 16,041,978 km (0.107 R)
• M16: 16,592,199 km (0.08 R)
• M17: 17,512,675 km (0.103 R)
• M18: 27,671,118 km (0.078 R)
• M19: 29,165,152 km (0.076 R)
• M20: 32,204,682 km (0.067 R)
• M21: 36,615,724 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.1

Radius: 5.5

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.68 AU - 7.22 AU

Year: 9678 Days

Day: 15.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,511,654 km

• M1: 78,240 km (0.115 R)
• M2: 504,743 km (0.041 R)
• M3: 1,052,271 km (0.083 R)
• M4: 1,514,080 km (0.092 R)
• M5: 2,009,399 km (0.12 R)
• M6: 2,252,346 km (0.096 R)
• M7: 2,591,185 km (0.057 R)
• M8: 6,460,085 km (0.094 R)
• M9: 11,380,060 km (0.109 R)
• M10: 13,006,188 km (0.083 R)
• M11: 14,831,282 km (0.104 R)
• M12: 15,700,596 km (0.104 R)
• M13: 17,935,738 km (0.053 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 371 - 17,286 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit