🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.9

Radius: 14.3

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.54 AU - 0.62 AU

Year: 295 Days

Day: 10 Hours

Environment

Temp: -141 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 26,006,602 km

• M1: 177,872 km (0.11 R)
• M2: 638,933 km (0.077 R)
• M3: 1,182,422 km (0.039 R)
• M4: 1,786,647 km (0.105 R)
• M5: 2,399,400 km (0.07 R)
• M6: 2,917,308 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.1

Radius: 10

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.62 AU - 0.7 AU

Year: 358 Days

Day: 7.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 26,006,602 km

• M1: 124,316 km (0.116 R)
• M2: 447,896 km (0.114 R)
• M3: 821,442 km (0.078 R)
• M4: 1,158,785 km (0.115 R)
• M5: 1,709,006 km (0.117 R)
• M6: 2,144,785 km (0.062 R)
• M7: 2,500,528 km (0.111 R)
• M8: 2,875,121 km (0.038 R)
• M9: 4,096,887 km (0.11 R)
• M10: 4,408,649 km (0.095 R)
• M11: 4,898,582 km (0.099 R)
• M12: 5,329,125 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.4

Radius: 14.4

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.72 AU - 1.2 AU

Year: 627 Days

Day: 9.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 26,006,602 km

• M1: 184,454 km (0.095 R)
• M2: 636,539 km (0.077 R)
• M3: 1,256,473 km (0.07 R)
• M4: 1,809,237 km (0.057 R)
• M5: 2,764,569 km (0.113 R)
• M6: 3,379,416 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.4

Radius: 13.8

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.99 AU - 1.37 AU

Year: 855 Days

Day: 13.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,006,602 km

• M1: 175,329 km (0.09 R)
• M2: 722,109 km (0.113 R)
• M3: 1,771,239 km (0.12 R)
• M4: 2,597,318 km (0.11 R)
• M5: 3,500,441 km (0.087 R)
• M6: 4,704,105 km (0.109 R)
• M7: 5,513,878 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196

Radius: 9.1

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.99 AU - 1.53 AU

Year: 943 Days

Day: 7.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 26,006,602 km

• M1: 113,246 km (0.075 R)
• M2: 449,691 km (0.107 R)
• M3: 815,608 km (0.026 R)
• M4: 1,361,490 km (0.078 R)
• M5: 2,198,490 km (0.084 R)
• M6: 2,903,096 km (0.101 R)
• M7: 3,505,826 km (0.03 R)
• M8: 4,601,331 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.7

Radius: 11.4

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.27 AU - 1.33 AU

Year: 988 Days

Day: 12.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,006,602 km

• M1: 141,819 km (0.072 R)
• M2: 615,146 km (0.056 R)
• M3: 986,448 km (0.1 R)
• M4: 1,787,096 km (0.046 R)
• M5: 3,226,826 km (0.116 R)
• M6: 4,799,399 km (0.108 R)
• M7: 5,577,158 km (0.09 R)
• M8: 5,935,445 km (0.092 R)
• M9: 6,632,571 km (0.1 R)
• M10: 7,058,177 km (0.112 R)
• M11: 7,816,339 km (0.049 R)
• M12: 8,291,761 km (0.093 R)
• M13: 8,680,566 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.9

Radius: 13.6

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.14 AU - 1.9 AU

Year: 1250 Days

Day: 11.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 26,006,602 km

• M1: 169,195 km (0.078 R)
• M2: 651,648 km (0.102 R)
• M3: 1,075,309 km (0.103 R)
• M4: 2,281,667 km (0.098 R)
• M5: 3,322,569 km (0.056 R)
• M6: 3,753,261 km (0.099 R)
• M7: 4,470,284 km (0.082 R)
• M8: 4,997,915 km (0.078 R)
• M9: 6,328,140 km (0.113 R)
• M10: 7,418,110 km (0.111 R)
• M11: 8,418,919 km (0.109 R)
• M12: 9,310,822 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.6

Radius: 9.3

Gravity: 8.53 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.09 AU - 6.33 AU

Year: 9099 Days

Day: 8.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 26,006,602 km

• M1: 115,639 km (0.115 R)
• M2: 421,417 km (0.103 R)
• M3: 915,090 km (0.092 R)
• M4: 1,609,374 km (0.104 R)
• M5: 2,334,924 km (0.085 R)
• M6: 2,782,820 km (0.103 R)
• M7: 3,082,763 km (0.064 R)
• M8: 3,549,359 km (0.074 R)
• M9: 4,653,391 km (0.101 R)
• M10: 6,585,897 km (0.116 R)
• M11: 6,889,132 km (0.074 R)
• M12: 7,201,641 km (0.112 R)
• M13: 7,897,571 km (0.077 R)
• M14: 8,240,150 km (0.036 R)
• M15: 9,470,592 km (0.098 R)
• M16: 12,122,065 km (0.094 R)
• M17: 12,928,547 km (0.043 R)
• M18: 15,697,155 km (0.106 R)
• M19: 17,148,254 km (0.029 R)
• M20: 17,943,217 km (0.114 R)
• M21: 18,914,108 km (0.119 R)
• M22: 26,237,223 km (0.108 R)
• M23: 30,208,896 km (0.117 R)
• M24: 31,261,018 km (0.103 R)
• M25: 35,947,770 km (0.101 R)
• M26: 39,072,421 km (0.06 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 49.9

Radius: 4.6

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 7.28 AU - 8.52 AU

Year: 14807 Days

Day: 16.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 26,006,602 km

• M1: 57,595 km (0.107 R)
• M2: 540,048 km (0.114 R)
• M3: 703,260 km (0.039 R)
• M4: 907,461 km (0.103 R)
• M5: 1,308,682 km (0.049 R)
• M6: 1,819,559 km (0.049 R)
• M7: 2,021,217 km (0.105 R)
• M8: 5,662,279 km (0.11 R)
• M9: 7,757,398 km (0.102 R)
• M10: 10,700,885 km (0.1 R)
• M11: 11,136,514 km (0.085 R)
• M12: 11,583,812 km (0.067 R)
• M13: 17,861,836 km (0.101 R)
• M14: 18,227,603 km (0.052 R)
• M15: 19,676,458 km (0.108 R)
• M16: 22,095,456 km (0.114 R)
• M17: 22,587,782 km (0.079 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: 511 - 17,323 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit