🌌 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: 54.5

Radius: 8.7

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.46 AU - 0.7 AU

Year: 295 Days

Day: 5.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 64,716,657 km

• M1: 108,309 km (0.075 R)
• M2: 405,709 km (0.077 R)
• M3: 710,739 km (0.114 R)
• M4: 1,013,974 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.1

Radius: 14.6

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.46 AU - 2.36 AU

Year: 1760 Days

Day: 7.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,716,657 km

• M1: 181,612 km (0.046 R)
• M2: 828,623 km (0.085 R)
• M3: 1,335,011 km (0.114 R)
• M4: 1,867,281 km (0.12 R)
• M5: 2,938,701 km (0.055 R)
• M6: 3,809,360 km (0.107 R)
• M7: 5,485,455 km (0.118 R)
• M8: 6,041,360 km (0.067 R)
• M9: 7,111,733 km (0.111 R)
• M10: 7,692,622 km (0.034 R)
• M11: 8,219,655 km (0.037 R)
• M12: 8,711,682 km (0.073 R)
• M13: 9,883,183 km (0.1 R)
• M14: 11,262,326 km (0.104 R)
• M15: 13,191,839 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.9

Radius: 10

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.08 AU - 2.54 AU

Year: 2341 Days

Day: 14.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,716,657 km

• M1: 124,316 km (0.117 R)
• M2: 462,407 km (0.083 R)
• M3: 957,576 km (0.106 R)
• M4: 1,811,630 km (0.091 R)
• M5: 2,177,995 km (0.039 R)
• M6: 2,828,896 km (0.064 R)
• M7: 3,445,837 km (0.095 R)
• M8: 3,861,420 km (0.102 R)
• M9: 5,242,807 km (0.049 R)
• M10: 7,682,898 km (0.087 R)
• M11: 12,298,291 km (0.069 R)
• M12: 13,272,323 km (0.118 R)
• M13: 16,352,842 km (0.091 R)
• M14: 16,756,009 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.1

Radius: 13.8

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.91 AU - 4.15 AU

Year: 4423 Days

Day: 6.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,716,657 km

• M1: 182,360 km (0.067 R)
• M2: 652,995 km (0.111 R)
• M3: 1,293,722 km (0.097 R)
• M4: 1,839,455 km (0.102 R)
• M5: 2,916,710 km (0.094 R)
• M6: 3,646,598 km (0.051 R)
• M7: 5,261,357 km (0.11 R)
• M8: 5,745,007 km (0.066 R)
• M9: 6,771,099 km (0.097 R)
• M10: 7,543,024 km (0.055 R)
• M11: 9,612,411 km (0.068 R)
• M12: 12,594,944 km (0.11 R)
• M13: 13,763,453 km (0.114 R)
• M14: 16,942,557 km (0.112 R)
• M15: 23,759,732 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.8

Radius: 10.4

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.67 AU - 4.85 AU

Year: 5863 Days

Day: 6.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,716,657 km

• M1: 129,701 km (0.1 R)
• M2: 462,407 km (0.097 R)
• M3: 972,536 km (0.081 R)
• M4: 1,558,660 km (0.107 R)
• M5: 1,902,287 km (0.094 R)
• M6: 2,714,304 km (0.038 R)
• M7: 3,362,212 km (0.039 R)
• M8: 3,742,939 km (0.036 R)
• M9: 4,478,960 km (0.084 R)
• M10: 7,460,446 km (0.103 R)
• M11: 7,978,503 km (0.078 R)
• M12: 9,753,632 km (0.034 R)
• M13: 13,399,182 km (0.11 R)
• M14: 16,913,685 km (0.101 R)
• M15: 20,999,502 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 433.4

Radius: 4.7

Gravity: 19.62 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 6.14 AU - 6.16 AU

Year: 10170 Days

Day: 21.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 64,716,657 km

• M1: 58,493 km (0.05 R)
• M2: 273,615 km (0.097 R)
• M3: 1,524,851 km (0.119 R)
• M4: 1,735,485 km (0.096 R)
• M5: 1,886,429 km (0.041 R)
• M6: 3,071,843 km (0.06 R)
• M7: 4,129,948 km (0.091 R)
• M8: 4,373,045 km (0.083 R)
• M9: 7,010,455 km (0.051 R)
• M10: 7,162,896 km (0.104 R)
• M11: 8,083,222 km (0.058 R)
• M12: 8,724,398 km (0.05 R)
• M13: 10,952,509 km (0.084 R)
• M14: 11,523,973 km (0.068 R)
• M15: 13,010,527 km (0.089 R)
• M16: 18,590,827 km (0.097 R)
• M17: 20,625,956 km (0.051 R)
• M18: 21,256,212 km (0.072 R)
• M19: 23,140,098 km (0.1 R)
• M20: 25,400,222 km (0.054 R)
• M21: 25,942,066 km (0.081 R)
• M22: 27,424,282 km (0.069 R)
• M23: 27,613,373 km (0.057 R)
• M24: 39,412,157 km (0.065 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.2

Radius: 6.7

Gravity: 20.43 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 6.07 AU - 8.29 AU

Year: 12830 Days

Day: 18.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 64,716,657 km

• M1: 83,326 km (0.078 R)
• M2: 306,376 km (0.072 R)
• M3: 531,222 km (0.03 R)
• M4: 746,643 km (0.094 R)
• M5: 1,092,214 km (0.035 R)
• M6: 1,450,800 km (0.052 R)
• M7: 1,921,285 km (0.037 R)
• M8: 2,281,517 km (0.072 R)
• M9: 2,823,510 km (0.063 R)
• M10: 3,342,166 km (0.06 R)
• M11: 3,721,995 km (0.06 R)
• M12: 6,509,751 km (0.045 R)
• M13: 9,676,140 km (0.051 R)
• M14: 12,364,114 km (0.1 R)
• M15: 12,619,029 km (0.091 R)
• M16: 13,073,657 km (0.119 R)
• M17: 14,015,525 km (0.074 R)
• M18: 16,033,900 km (0.1 R)
• M19: 16,644,409 km (0.098 R)
• M20: 16,955,423 km (0.057 R)
• M21: 18,074,564 km (0.078 R)
• M22: 21,359,135 km (0.038 R)
• M23: 22,379,542 km (0.112 R)
• M24: 22,853,917 km (0.115 R)
• M25: 24,717,757 km (0.091 R)
• M26: 25,224,595 km (0.115 R)
• M27: 27,645,836 km (0.09 R)
• M28: 29,418,870 km (0.115 R)
• M29: 31,384,137 km (0.067 R)
• M30: 32,944,892 km (0.089 R)
• M31: 35,190,506 km (0.079 R)
• M32: 38,071,013 km (0.082 R)
• M33: 52,654,860 km (0.068 R)
• M34: 58,535,852 km (0.086 R)
• M35: 59,617,145 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 327.5

Radius: 7.9

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 8.36 AU - 12.64 AU

Year: 22689 Days

Day: 20.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,716,657 km

• M1: 100,231 km (0.025 R)
• M2: 2,118,007 km (0.057 R)
• M3: 2,549,447 km (0.117 R)
• M4: 3,189,127 km (0.063 R)
• M5: 4,817,650 km (0.086 R)
• M6: 5,200,172 km (0.056 R)
• M7: 5,602,739 km (0.045 R)
• M8: 6,145,032 km (0.105 R)
• M9: 7,794,049 km (0.095 R)
• M10: 8,224,143 km (0.076 R)
• M11: 13,437,180 km (0.119 R)
• M12: 14,621,546 km (0.113 R)
• M13: 17,518,509 km (0.097 R)
• M14: 18,008,442 km (0.103 R)
• M15: 20,596,186 km (0.082 R)
• M16: 22,072,867 km (0.101 R)
• M17: 23,618,961 km (0.054 R)
• M18: 26,177,234 km (0.115 R)
• M19: 30,293,718 km (0.087 R)
• M20: 43,983,868 km (0.107 R)
• M21: 47,836,014 km (0.117 R)
• M22: 48,632,473 km (0.103 R)
• M23: 54,112,542 km (0.098 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: 154 - 18,804 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit