🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.4

Radius: 11.8

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.55 AU - 0.55 AU

Year: 277 Days

Day: 12.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,693,027 km

• M1: 146,756 km (0.098 R)
• M2: 711,338 km (0.094 R)
• M3: 1,131,708 km (0.102 R)
• M4: 1,519,914 km (0.117 R)
• M5: 1,928,167 km (0.08 R)
• M6: 2,543,164 km (0.053 R)
• M7: 3,067,953 km (0.103 R)
• M8: 3,450,176 km (0.063 R)
• M9: 3,841,823 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.3

Radius: 11.3

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.63 AU - 0.75 AU

Year: 389 Days

Day: 14.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 53,693,027 km

• M1: 141,071 km (0.112 R)
• M2: 987,196 km (0.107 R)
• M3: 1,427,762 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.8

Radius: 12

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.63 AU - 0.97 AU

Year: 485 Days

Day: 8.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,693,027 km

• M1: 149,299 km (0.053 R)
• M2: 679,623 km (0.083 R)
• M3: 1,069,924 km (0.087 R)
• M4: 1,561,951 km (0.111 R)
• M5: 2,334,475 km (0.056 R)
• M6: 2,708,769 km (0.096 R)
• M7: 3,335,584 km (0.079 R)
• M8: 4,660,722 km (0.07 R)
• M9: 5,167,709 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.8

Radius: 12.6

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.14 AU - 1.64 AU

Year: 1112 Days

Day: 7.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,693,027 km

• M1: 160,070 km (0.051 R)
• M2: 640,428 km (0.051 R)
• M3: 1,146,668 km (0.114 R)
• M4: 2,131,470 km (0.084 R)
• M5: 2,686,927 km (0.095 R)
• M6: 3,155,318 km (0.081 R)
• M7: 3,617,426 km (0.113 R)
• M8: 5,502,509 km (0.086 R)
• M9: 5,917,194 km (0.082 R)
• M10: 7,240,088 km (0.111 R)
• M11: 9,670,605 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.4

Radius: 14.4

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.83 AU - 2.87 AU

Year: 2443 Days

Day: 5.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,693,027 km

• M1: 179,218 km (0.105 R)
• M2: 630,555 km (0.037 R)
• M3: 1,192,445 km (0.117 R)
• M4: 1,826,440 km (0.071 R)
• M5: 2,651,024 km (0.082 R)
• M6: 3,219,496 km (0.097 R)
• M7: 3,948,785 km (0.108 R)
• M8: 4,855,199 km (0.11 R)
• M9: 5,739,023 km (0.109 R)
• M10: 7,636,074 km (0.092 R)
• M11: 8,797,552 km (0.108 R)
• M12: 9,439,177 km (0.054 R)
• M13: 10,578,065 km (0.118 R)
• M14: 11,386,941 km (0.074 R)
• M15: 12,367,854 km (0.063 R)
• M16: 14,207,160 km (0.036 R)
• M17: 16,170,034 km (0.075 R)
• M18: 18,885,385 km (0.118 R)
• M19: 20,505,081 km (0.07 R)
• M20: 21,127,857 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.8

Radius: 9.2

Gravity: 10.96 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.92 AU - 2.9 AU

Year: 2538 Days

Day: 7 Hours

Environment

Temp: -215 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,693,027 km

• M1: 114,592 km (0.055 R)
• M2: 406,757 km (0.041 R)
• M3: 960,119 km (0.094 R)
• M4: 1,437,336 km (0.103 R)
• M5: 1,927,718 km (0.032 R)
• M6: 2,408,975 km (0.089 R)
• M7: 2,952,164 km (0.075 R)
• M8: 3,768,071 km (0.098 R)
• M9: 4,866,269 km (0.111 R)
• M10: 5,527,941 km (0.097 R)
• M11: 6,110,325 km (0.101 R)
• M12: 6,444,826 km (0.11 R)
• M13: 6,762,273 km (0.091 R)
• M14: 7,874,982 km (0.078 R)
• M15: 9,105,424 km (0.092 R)
• M16: 10,420,090 km (0.107 R)
• M17: 12,029,464 km (0.085 R)
• M18: 13,562,244 km (0.103 R)
• M19: 14,719,832 km (0.119 R)
• M20: 15,170,421 km (0.093 R)
• M21: 18,298,662 km (0.071 R)
• M22: 19,291,393 km (0.083 R)
• M23: 20,628,948 km (0.053 R)
• M24: 21,004,139 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.3

Radius: 15

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.63 AU - 2.73 AU

Year: 2976 Days

Day: 11.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,693,027 km

• M1: 187,745 km (0.113 R)
• M2: 832,811 km (0.114 R)
• M3: 1,429,108 km (0.099 R)
• M4: 2,007,005 km (0.042 R)
• M5: 2,663,141 km (0.055 R)
• M6: 3,516,597 km (0.11 R)
• M7: 5,984,364 km (0.027 R)
• M8: 6,632,122 km (0.066 R)
• M9: 7,483,633 km (0.062 R)
• M10: 8,545,180 km (0.071 R)
• M11: 9,185,160 km (0.115 R)
• M12: 10,322,851 km (0.096 R)
• M13: 11,257,389 km (0.108 R)
• M14: 12,071,351 km (0.066 R)
• M15: 12,560,237 km (0.083 R)
• M16: 14,303,052 km (0.081 R)
• M17: 16,525,478 km (0.089 R)
• M18: 18,380,941 km (0.076 R)
• M19: 19,148,827 km (0.099 R)
• M20: 20,061,224 km (0.111 R)
• M21: 21,581,288 km (0.08 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.5

Radius: 14.4

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.28 AU - 4 AU

Year: 4710 Days

Day: 9.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,693,027 km

• M1: 179,218 km (0.101 R)
• M2: 1,003,054 km (0.1 R)
• M3: 2,182,783 km (0.088 R)
• M4: 2,721,634 km (0.041 R)
• M5: 3,745,332 km (0.117 R)
• M6: 4,336,393 km (0.032 R)
• M7: 6,330,683 km (0.063 R)
• M8: 16,776,055 km (0.062 R)
• M9: 18,556,718 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656.9

Radius: 3

Gravity: 72.99 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.91 AU - 7.75 AU

Year: 12107 Days

Day: 17.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,693,027 km

• M1: 54,902 km (0.108 R)
• M2: 310,266 km (0.067 R)
• M3: 429,047 km (0.118 R)
• M4: 632,350 km (0.087 R)
• M5: 836,102 km (0.112 R)
• M6: 1,070,074 km (0.112 R)
• M7: 1,428,809 km (0.069 R)
• M8: 2,298,571 km (0.07 R)
• M9: 2,755,144 km (0.101 R)
• M10: 6,083,098 km (0.088 R)
• M11: 9,111,109 km (0.117 R)
• M12: 10,398,249 km (0.062 R)
• M13: 12,216,162 km (0.111 R)
• M14: 17,434,734 km (0.084 R)
• M15: 19,160,196 km (0.082 R)
• M16: 19,732,258 km (0.091 R)
• M17: 23,498,086 km (0.111 R)
• M18: 28,552,100 km (0.089 R)
• M19: 30,275,467 km (0.084 R)
• M20: 36,353,479 km (0.094 R)
• M21: 38,118,435 km (0.075 R)
• M22: 38,375,295 km (0.108 R)
• M23: 41,954,723 km (0.06 R)
• M24: 42,365,668 km (0.116 R)
• M25: 42,641,227 km (0.104 R)
• M26: 44,318,968 km (0.086 R)
• M27: 44,460,786 km (0.055 R)
• M28: 44,745,322 km (0.112 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 391 - 14,569 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit