🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.38

Radius: 1.14

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.57 AU - 0.81 AU

Year: 210 Days

Day: 30.3 Hours

Environment

Temp: 129 °C

Axial Tilt: 43.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.77 AU - 1.15 AU

Year: 345 Days

Day: 43.1 Hours

Environment

Temp: 36 °C

Axial Tilt: 8.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.1

Radius: 9.6

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 4.48 AU - 5.86 AU

Year: 4315 Days

Day: 13.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 32,447,001 km

• M1: 119,379 km (0.049 R)
• M2: 705,354 km (0.063 R)
• M3: 1,130,511 km (0.09 R)
• M4: 1,483,113 km (0.11 R)
• M5: 2,246,511 km (0.104 R)
• M6: 3,042,372 km (0.099 R)
• M7: 3,558,185 km (0.058 R)
• M8: 4,308,718 km (0.028 R)
• M9: 5,161,276 km (0.107 R)
• M10: 6,512,145 km (0.026 R)
• M11: 6,918,303 km (0.105 R)
• M12: 7,811,552 km (0.034 R)
• M13: 8,877,586 km (0.049 R)
• M14: 10,180,733 km (0.063 R)
• M15: 10,915,857 km (0.096 R)
• M16: 12,327,463 km (0.077 R)
• M17: 12,782,091 km (0.058 R)
• M18: 13,376,892 km (0.112 R)
• M19: 13,812,970 km (0.105 R)
• M20: 14,348,829 km (0.101 R)
• M21: 15,414,415 km (0.119 R)
• M22: 16,432,578 km (0.063 R)
• M23: 16,882,569 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925

Radius: 12.1

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 4.34 AU - 6.18 AU

Year: 4428 Days

Day: 5.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,447,001 km

• M1: 150,495 km (0.05 R)
• M2: 646,562 km (0.103 R)
• M3: 1,981,424 km (0.11 R)
• M4: 2,387,582 km (0.076 R)
• M5: 4,002,341 km (0.079 R)
• M6: 4,457,418 km (0.104 R)
• M7: 8,105,063 km (0.082 R)
• M8: 8,601,279 km (0.06 R)
• M9: 10,300,711 km (0.088 R)
• M10: 11,919,958 km (0.12 R)
• M11: 13,649,759 km (0.07 R)
• M12: 14,134,456 km (0.108 R)
• M13: 16,010,413 km (0.039 R)
• M14: 18,631,517 km (0.102 R)
• M15: 19,633,225 km (0.119 R)
• M16: 26,329,524 km (0.075 R)
• M17: 27,590,634 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.6

Radius: 10.5

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 6.52 AU - 8.92 AU

Year: 7874 Days

Day: 14.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 32,447,001 km

• M1: 135,835 km (0.052 R)
• M2: 524,640 km (0.1 R)
• M3: 977,323 km (0.06 R)
• M4: 2,050,089 km (0.099 R)
• M5: 2,410,171 km (0.075 R)
• M6: 4,217,762 km (0.09 R)
• M7: 4,924,313 km (0.093 R)
• M8: 5,259,263 km (0.095 R)
• M9: 5,740,818 km (0.106 R)
• M10: 6,146,977 km (0.111 R)
• M11: 9,598,349 km (0.102 R)
• M12: 10,318,962 km (0.082 R)
• M13: 11,599,669 km (0.073 R)
• M14: 14,474,192 km (0.114 R)
• M15: 16,409,989 km (0.079 R)
• M16: 18,222,367 km (0.11 R)
• M17: 20,475,161 km (0.102 R)
• M18: 24,019,135 km (0.109 R)
• M19: 25,256,010 km (0.096 R)
• M20: 26,721,172 km (0.076 R)
• M21: 27,760,727 km (0.105 R)
• M22: 30,528,288 km (0.049 R)
• M23: 31,351,675 km (0.118 R)
• M24: 34,020,351 km (0.026 R)
• M25: 36,952,619 km (0.11 R)
• M26: 39,078,704 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.8

Radius: 10.3

Gravity: 8.72 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 8.16 AU - 8.52 AU

Year: 8841 Days

Day: 9.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,447,001 km

• M1: 223,200 km (0.105 R)
• M2: 870,510 km (0.105 R)
• M3: 2,075,072 km (0.076 R)
• M4: 2,553,785 km (0.112 R)
• M5: 4,246,036 km (0.119 R)
• M6: 6,433,905 km (0.1 R)
• M7: 7,211,665 km (0.095 R)
• M8: 8,767,782 km (0.059 R)
• M9: 10,853,176 km (0.119 R)
• M10: 13,067,823 km (0.083 R)
• M11: 15,979,147 km (0.078 R)
• M12: 16,823,029 km (0.097 R)
• M13: 20,580,179 km (0.088 R)
• M14: 24,400,460 km (0.119 R)
• M15: 27,161,887 km (0.111 R)
• M16: 27,858,415 km (0.099 R)
• M17: 28,566,910 km (0.05 R)
• M18: 30,550,279 km (0.106 R)
• M19: 33,524,434 km (0.095 R)
• M20: 35,848,138 km (0.03 R)
• M21: 39,278,866 km (0.031 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.9

Radius: 13

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 7.62 AU - 9.18 AU

Year: 8937 Days

Day: 5.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,447,001 km

• M1: 161,715 km (0.091 R)
• M2: 695,331 km (0.082 R)
• M3: 1,160,879 km (0.099 R)
• M4: 1,839,605 km (0.109 R)
• M5: 2,384,141 km (0.088 R)
• M6: 3,493,559 km (0.086 R)
• M7: 5,393,751 km (0.111 R)
• M8: 6,012,039 km (0.064 R)
• M9: 7,224,231 km (0.092 R)
• M10: 10,636,409 km (0.113 R)
• M11: 11,249,760 km (0.076 R)
• M12: 11,702,293 km (0.108 R)
• M13: 16,922,212 km (0.081 R)
• M14: 21,110,952 km (0.054 R)
• M15: 26,816,765 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 32.9

Radius: 3.2

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 14.99 AU - 18.73 AU

Year: 25413 Days

Day: 18.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,447,001 km

• M1: 39,943 km (0.079 R)
• M2: 863,329 km (0.094 R)
• M3: 1,023,997 km (0.108 R)
• M4: 5,114,452 km (0.095 R)
• M5: 5,314,764 km (0.12 R)
• M6: 5,520,311 km (0.058 R)
• M7: 10,547,547 km (0.096 R)
• M8: 12,085,414 km (0.072 R)
• M9: 14,662,536 km (0.113 R)
• M10: 15,596,775 km (0.093 R)
• M11: 17,454,332 km (0.062 R)
• M12: 26,444,565 km (0.068 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 418 - 20,365 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit