🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.9

Radius: 14.6

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.53 AU - 0.83 AU

Year: 368 Days

Day: 5.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,301,750 km

• M1: 181,612 km (0.107 R)
• M2: 762,800 km (0.098 R)
• M3: 1,311,525 km (0.083 R)
• M4: 1,945,072 km (0.055 R)
• M5: 2,430,068 km (0.069 R)
• M6: 2,938,850 km (0.107 R)
• M7: 4,237,210 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.6

Radius: 9.5

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.67 AU - 1.03 AU

Year: 514 Days

Day: 9.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,301,750 km

• M1: 118,182 km (0.045 R)
• M2: 434,731 km (0.102 R)
• M3: 888,312 km (0.047 R)
• M4: 1,186,461 km (0.084 R)
• M5: 1,821,803 km (0.067 R)
• M6: 2,289,147 km (0.113 R)
• M7: 2,795,535 km (0.049 R)
• M8: 3,319,128 km (0.09 R)
• M9: 4,590,261 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.7

Radius: 11.1

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.81 AU - 1.27 AU

Year: 696 Days

Day: 7.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,301,750 km

• M1: 138,228 km (0.066 R)
• M2: 744,698 km (0.117 R)
• M3: 1,285,943 km (0.079 R)
• M4: 1,861,446 km (0.087 R)
• M5: 3,098,471 km (0.071 R)
• M6: 4,019,545 km (0.09 R)
• M7: 4,374,990 km (0.095 R)
• M8: 4,921,920 km (0.1 R)
• M9: 7,372,781 km (0.109 R)
• M10: 7,836,834 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.1

Radius: 13.4

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.98 AU - 1.44 AU

Year: 873 Days

Day: 9 Hours

Environment

Temp: -159 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,301,750 km

• M1: 166,652 km (0.091 R)
• M2: 904,469 km (0.077 R)
• M3: 1,348,924 km (0.082 R)
• M4: 2,943,637 km (0.041 R)
• M5: 3,524,526 km (0.056 R)
• M6: 4,068,912 km (0.102 R)
• M7: 4,582,183 km (0.091 R)
• M8: 5,009,285 km (0.073 R)
• M9: 6,497,484 km (0.113 R)
• M10: 7,131,630 km (0.048 R)
• M11: 7,658,513 km (0.046 R)
• M12: 8,497,757 km (0.068 R)
• M13: 9,826,935 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.1

Radius: 8.2

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.78 AU - 2.36 AU

Year: 1954 Days

Day: 5.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,301,750 km

• M1: 102,026 km (0.066 R)
• M2: 389,852 km (0.116 R)
• M3: 948,750 km (0.089 R)
• M4: 1,375,852 km (0.073 R)
• M5: 2,224,072 km (0.03 R)
• M6: 3,129,737 km (0.097 R)
• M7: 4,370,053 km (0.04 R)
• M8: 4,820,642 km (0.103 R)
• M9: 5,337,502 km (0.103 R)
• M10: 7,689,779 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.3

Radius: 4.5

Gravity: 25.15 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.07 AU - 7.29 AU

Year: 10078 Days

Day: 21 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,301,750 km

• M1: 109,356 km (0.07 R)
• M2: 394,340 km (0.109 R)
• M3: 681,568 km (0.118 R)
• M4: 1,392,756 km (0.112 R)
• M5: 1,754,334 km (0.029 R)
• M6: 2,210,907 km (0.073 R)
• M7: 2,448,020 km (0.051 R)
• M8: 3,402,454 km (0.026 R)
• M9: 5,407,813 km (0.119 R)
• M10: 6,436,598 km (0.095 R)
• M11: 6,583,054 km (0.095 R)
• M12: 7,230,215 km (0.117 R)
• M13: 7,918,814 km (0.114 R)
• M14: 8,828,518 km (0.116 R)
• M15: 10,699,090 km (0.073 R)
• M16: 22,712,846 km (0.103 R)
• M17: 26,265,497 km (0.107 R)
• M18: 30,479,070 km (0.12 R)
• M19: 34,002,549 km (0.103 R)
• M20: 35,234,786 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 177

Radius: 3

Gravity: 19.67 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 6.79 AU - 7.19 AU

Year: 12123 Days

Day: 23.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,301,750 km

• M1: 59,390 km (0.1 R)
• M2: 275,110 km (0.063 R)
• M3: 448,345 km (0.087 R)
• M4: 566,228 km (0.078 R)
• M5: 1,562,550 km (0.076 R)
• M6: 2,340,758 km (0.102 R)
• M7: 2,624,695 km (0.039 R)
• M8: 2,931,071 km (0.092 R)
• M9: 3,092,936 km (0.068 R)
• M10: 5,083,485 km (0.081 R)
• M11: 6,192,155 km (0.116 R)
• M12: 11,778,439 km (0.066 R)
• M13: 13,526,340 km (0.095 R)
• M14: 25,399,474 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 645.1

Radius: 4.7

Gravity: 29.2 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 8.15 AU - 10.51 AU

Year: 18695 Days

Day: 21.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,301,750 km

• M1: 100,679 km (0.039 R)
• M2: 271,221 km (0.09 R)
• M3: 594,951 km (0.046 R)
• M4: 948,151 km (0.06 R)
• M5: 1,184,965 km (0.078 R)
• M6: 2,285,257 km (0.067 R)
• M7: 3,875,782 km (0.079 R)
• M8: 4,317,095 km (0.113 R)
• M9: 6,085,941 km (0.1 R)
• M10: 12,436,370 km (0.072 R)
• M11: 14,394,756 km (0.086 R)
• M12: 15,141,249 km (0.08 R)
• M13: 18,128,270 km (0.117 R)
• M14: 18,559,860 km (0.099 R)
• M15: 24,810,508 km (0.118 R)
• M16: 26,209,098 km (0.12 R)
• M17: 28,231,362 km (0.117 R)
• M18: 34,127,762 km (0.097 R)
• M19: 42,738,616 km (0.045 R)
• M20: 46,328,217 km (0.117 R)
• M21: 50,792,367 km (0.09 R)
• M22: 68,143,625 km (0.043 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: 227 - 15,648 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit