🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.7

Radius: 10.1

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.51 AU - 0.57 AU

Year: 269 Days

Day: 10.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,694,571 km

• M1: 125,662 km (0.089 R)
• M2: 491,429 km (0.097 R)
• M3: 844,031 km (0.083 R)
• M4: 1,423,125 km (0.092 R)
• M5: 2,275,533 km (0.05 R)
• M6: 3,415,768 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.1

Radius: 10.7

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.57 AU - 0.61 AU

Year: 307 Days

Day: 14.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 101.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,694,571 km

• M1: 133,142 km (0.078 R)
• M2: 502,350 km (0.12 R)
• M3: 954,135 km (0.114 R)
• M4: 1,709,305 km (0.066 R)
• M5: 2,228,410 km (0.095 R)
• M6: 2,833,832 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.8

Radius: 11.8

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.28 AU - 1.4 AU

Year: 1052 Days

Day: 11.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,694,571 km

• M1: 147,204 km (0.097 R)
• M2: 748,588 km (0.081 R)
• M3: 1,327,532 km (0.067 R)
• M4: 2,034,531 km (0.088 R)
• M5: 2,436,351 km (0.079 R)
• M6: 2,842,360 km (0.107 R)
• M7: 3,280,083 km (0.029 R)
• M8: 3,674,124 km (0.092 R)
• M9: 4,227,785 km (0.091 R)
• M10: 5,580,599 km (0.104 R)
• M11: 6,399,498 km (0.039 R)
• M12: 7,654,175 km (0.096 R)
• M13: 8,560,289 km (0.107 R)
• M14: 9,039,451 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.8

Radius: 9.2

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.08 AU - 1.74 AU

Year: 1136 Days

Day: 11.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,694,571 km

• M1: 114,442 km (0.07 R)
• M2: 472,430 km (0.112 R)
• M3: 796,010 km (0.111 R)
• M4: 1,096,702 km (0.093 R)
• M5: 1,388,268 km (0.111 R)
• M6: 1,724,415 km (0.099 R)
• M7: 2,251,448 km (0.099 R)
• M8: 2,575,028 km (0.075 R)
• M9: 3,214,110 km (0.063 R)
• M10: 3,640,614 km (0.082 R)
• M11: 4,789,226 km (0.092 R)
• M12: 5,346,777 km (0.116 R)
• M13: 5,812,176 km (0.046 R)
• M14: 6,284,008 km (0.063 R)
• M15: 7,507,420 km (0.031 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.2

Radius: 13.7

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.87 AU - 2.11 AU

Year: 1904 Days

Day: 7.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,694,571 km

• M1: 178,620 km (0.089 R)
• M2: 637,437 km (0.104 R)
• M3: 1,193,342 km (0.086 R)
• M4: 1,621,192 km (0.09 R)
• M5: 2,188,916 km (0.113 R)
• M6: 3,836,288 km (0.11 R)
• M7: 4,421,814 km (0.093 R)
• M8: 6,007,551 km (0.105 R)
• M9: 6,800,270 km (0.057 R)
• M10: 7,831,149 km (0.066 R)
• M11: 8,534,259 km (0.06 R)
• M12: 12,425,898 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.9

Radius: 12.9

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.96 AU - 2.2 AU

Year: 2035 Days

Day: 5.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 61.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,694,571 km

• M1: 160,519 km (0.113 R)
• M2: 930,948 km (0.106 R)
• M3: 2,039,318 km (0.104 R)
• M4: 2,569,194 km (0.06 R)
• M5: 3,007,516 km (0.082 R)
• M6: 3,838,981 km (0.065 R)
• M7: 4,455,025 km (0.05 R)
• M8: 5,536,468 km (0.117 R)
• M9: 6,250,349 km (0.066 R)
• M10: 6,917,854 km (0.032 R)
• M11: 7,463,288 km (0.08 R)
• M12: 8,486,986 km (0.099 R)
• M13: 9,112,904 km (0.101 R)
• M14: 10,212,747 km (0.083 R)
• M15: 11,213,707 km (0.095 R)
• M16: 12,239,799 km (0.082 R)
• M17: 13,494,027 km (0.098 R)
• M18: 14,001,912 km (0.06 R)
• M19: 14,434,848 km (0.117 R)
• M20: 15,101,007 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.3

Radius: 12.9

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.46 AU - 2.52 AU

Year: 2665 Days

Day: 11.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,694,571 km

• M1: 161,416 km (0.098 R)
• M2: 654,640 km (0.091 R)
• M3: 1,125,574 km (0.113 R)
• M4: 2,855,075 km (0.081 R)
• M5: 5,563,994 km (0.056 R)
• M6: 6,178,093 km (0.101 R)
• M7: 7,633,830 km (0.107 R)
• M8: 8,231,024 km (0.094 R)
• M9: 9,483,757 km (0.064 R)
• M10: 11,213,557 km (0.099 R)
• M11: 11,903,353 km (0.113 R)
• M12: 14,190,256 km (0.089 R)
• M13: 14,757,082 km (0.115 R)
• M14: 15,986,477 km (0.106 R)
• M15: 19,100,507 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.8

Radius: 10.3

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.45 AU - 2.91 AU

Year: 2976 Days

Day: 8.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,694,571 km

• M1: 128,654 km (0.079 R)
• M2: 498,610 km (0.098 R)
• M3: 848,669 km (0.099 R)
• M4: 1,467,854 km (0.038 R)
• M5: 4,260,099 km (0.102 R)
• M6: 5,490,391 km (0.101 R)
• M7: 5,965,365 km (0.112 R)
• M8: 7,301,722 km (0.106 R)
• M9: 7,995,408 km (0.072 R)
• M10: 9,853,563 km (0.113 R)
• M11: 11,711,269 km (0.067 R)
• M12: 12,702,505 km (0.11 R)
• M13: 13,155,936 km (0.119 R)
• M14: 15,124,494 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 222.8

Radius: 4.4

Gravity: 11.51 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 6.65 AU - 9.29 AU

Year: 15261 Days

Day: 23.4 Hours

Environment

Temp: -242 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,694,571 km

• M1: 54,753 km (0.117 R)
• M2: 419,772 km (0.086 R)
• M3: 1,152,352 km (0.043 R)
• M4: 2,056,971 km (0.111 R)
• M5: 2,374,567 km (0.114 R)
• M6: 3,452,270 km (0.117 R)
• M7: 4,004,885 km (0.052 R)
• M8: 9,960,077 km (0.096 R)
• M9: 10,106,982 km (0.117 R)
• M10: 14,831,582 km (0.098 R)
• M11: 16,073,244 km (0.083 R)
• M12: 18,465,314 km (0.11 R)
• M13: 22,147,965 km (0.119 R)
• M14: 22,650,614 km (0.12 R)
• M15: 27,235,190 km (0.11 R)
• M16: 27,812,039 km (0.042 R)
• M17: 30,923,226 km (0.075 R)
• M18: 33,157,770 km (0.1 R)
• M19: 35,955,399 km (0.096 R)
• M20: 39,027,541 km (0.04 R)
• M21: 41,506,528 km (0.086 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 225 - 14,743 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit