🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.9

Radius: 8.8

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.75 AU - 0.77 AU

Year: 435 Days

Day: 9.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,616,010 km

• M1: 115,041 km (0.077 R)
• M2: 406,757 km (0.095 R)
• M3: 704,008 km (0.081 R)
• M4: 1,052,271 km (0.107 R)
• M5: 1,365,829 km (0.09 R)
• M6: 1,723,966 km (0.079 R)
• M7: 2,019,721 km (0.103 R)
• M8: 2,456,696 km (0.115 R)
• M9: 2,955,755 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.5

Radius: 11.3

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.67 AU - 1.05 AU

Year: 523 Days

Day: 8.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 50,616,010 km

• M1: 144,063 km (0.054 R)
• M2: 682,615 km (0.083 R)
• M3: 1,168,659 km (0.093 R)
• M4: 2,850,438 km (0.03 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.2

Radius: 12.7

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.89 AU - 1.15 AU

Year: 676 Days

Day: 10.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,616,010 km

• M1: 157,975 km (0.11 R)
• M2: 659,128 km (0.101 R)
• M3: 1,071,270 km (0.06 R)
• M4: 1,617,153 km (0.076 R)
• M5: 2,185,924 km (0.094 R)
• M6: 2,671,818 km (0.081 R)
• M7: 3,284,272 km (0.072 R)
• M8: 3,791,558 km (0.059 R)
• M9: 4,417,924 km (0.063 R)
• M10: 4,820,492 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.6

Radius: 12.9

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.88 AU - 1.38 AU

Year: 788 Days

Day: 5.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,616,010 km

• M1: 160,519 km (0.087 R)
• M2: 638,783 km (0.086 R)
• M3: 1,234,781 km (0.085 R)
• M4: 2,046,648 km (0.074 R)
• M5: 2,625,443 km (0.07 R)
• M6: 3,165,641 km (0.109 R)
• M7: 3,658,566 km (0.055 R)
• M8: 4,231,974 km (0.093 R)
• M9: 5,213,037 km (0.113 R)
• M10: 5,867,378 km (0.104 R)
• M11: 6,756,887 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.5

Radius: 13.8

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.25 AU - 4.73 AU

Year: 5228 Days

Day: 13.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 163.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,616,010 km

• M1: 171,738 km (0.098 R)
• M2: 688,449 km (0.076 R)
• M3: 1,144,723 km (0.064 R)
• M4: 1,594,414 km (0.079 R)
• M5: 2,107,385 km (0.038 R)
• M6: 2,765,466 km (0.086 R)
• M7: 3,455,860 km (0.115 R)
• M8: 5,400,633 km (0.112 R)
• M9: 6,330,084 km (0.084 R)
• M10: 6,898,107 km (0.104 R)
• M11: 8,581,682 km (0.074 R)
• M12: 9,723,413 km (0.107 R)
• M13: 10,786,904 km (0.1 R)
• M14: 11,278,782 km (0.037 R)
• M15: 13,398,434 km (0.052 R)
• M16: 14,606,586 km (0.075 R)
• M17: 15,376,716 km (0.079 R)
• M18: 16,116,029 km (0.1 R)
• M19: 19,773,099 km (0.086 R)
• M20: 22,329,726 km (0.068 R)
• M21: 24,253,405 km (0.104 R)
• M22: 26,688,559 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.9

Radius: 12.5

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 5.08 AU - 5.8 AU

Year: 8324 Days

Day: 10.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,616,010 km

• M1: 155,432 km (0.09 R)
• M2: 693,685 km (0.119 R)
• M3: 1,404,574 km (0.114 R)
• M4: 2,460,586 km (0.091 R)
• M5: 3,400,060 km (0.073 R)
• M6: 4,207,889 km (0.118 R)
• M7: 4,751,528 km (0.094 R)
• M8: 5,341,841 km (0.118 R)
• M9: 5,823,995 km (0.105 R)
• M10: 8,564,927 km (0.077 R)
• M11: 9,312,617 km (0.045 R)
• M12: 10,655,108 km (0.065 R)
• M13: 14,341,050 km (0.081 R)
• M14: 16,501,543 km (0.114 R)
• M15: 20,425,794 km (0.113 R)
• M16: 21,760,207 km (0.078 R)
• M17: 25,433,732 km (0.083 R)
• M18: 27,065,097 km (0.112 R)
• M19: 30,156,687 km (0.053 R)
• M20: 32,179,549 km (0.114 R)
• M21: 33,274,606 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 458.8

Radius: 3

Gravity: 50.98 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.85 AU - 8.99 AU

Year: 13259 Days

Day: 17 Hours

Environment

Temp: -223 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,616,010 km

• M1: 40,840 km (0.116 R)
• M2: 499,058 km (0.102 R)
• M3: 1,032,824 km (0.095 R)
• M4: 1,444,367 km (0.072 R)
• M5: 2,205,821 km (0.032 R)
• M6: 2,923,591 km (0.054 R)
• M7: 7,398,063 km (0.082 R)
• M8: 8,967,345 km (0.113 R)
• M9: 9,602,687 km (0.077 R)
• M10: 10,691,461 km (0.116 R)
• M11: 11,630,935 km (0.066 R)
• M12: 12,267,474 km (0.098 R)
• M13: 16,725,192 km (0.09 R)
• M14: 17,311,615 km (0.104 R)
• M15: 27,317,020 km (0.107 R)
• M16: 30,122,728 km (0.074 R)
• M17: 34,740,814 km (0.11 R)
• M18: 36,909,235 km (0.069 R)
• M19: 37,776,305 km (0.028 R)
• M20: 44,507,012 km (0.064 R)
• M21: 44,786,162 km (0.117 R)
• M22: 49,711,073 km (0.117 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 182 - 19,562 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit