🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.8

Radius: 12.3

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.5 AU - 0.8 AU

Year: 355 Days

Day: 12.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,177,348 km

• M1: 153,039 km (0.067 R)
• M2: 707,448 km (0.099 R)
• M3: 1,097,001 km (0.115 R)
• M4: 1,555,519 km (0.073 R)
• M5: 2,269,848 km (0.039 R)
• M6: 2,743,176 km (0.036 R)
• M7: 3,350,244 km (0.118 R)
• M8: 3,916,921 km (0.075 R)
• M9: 4,366,014 km (0.077 R)
• M10: 4,878,985 km (0.066 R)
• M11: 5,463,913 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.1

Radius: 8.4

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.79 AU - 0.87 AU

Year: 513 Days

Day: 5.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,177,348 km

• M1: 104,419 km (0.083 R)
• M2: 529,128 km (0.117 R)
• M3: 818,749 km (0.118 R)
• M4: 1,129,614 km (0.093 R)
• M5: 1,428,360 km (0.094 R)
• M6: 2,774,143 km (0.113 R)
• M7: 3,305,963 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.3

Radius: 9.8

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.03 AU - 1.17 AU

Year: 782 Days

Day: 10.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,177,348 km

• M1: 122,072 km (0.046 R)
• M2: 461,210 km (0.117 R)
• M3: 837,598 km (0.062 R)
• M4: 1,155,644 km (0.087 R)
• M5: 1,503,010 km (0.051 R)
• M6: 2,020,469 km (0.071 R)
• M7: 2,404,487 km (0.059 R)
• M8: 3,217,252 km (0.06 R)
• M9: 3,758,347 km (0.027 R)
• M10: 4,172,434 km (0.11 R)
• M11: 5,005,395 km (0.115 R)
• M12: 5,489,195 km (0.082 R)
• M13: 6,082,949 km (0.076 R)
• M14: 6,782,767 km (0.099 R)
• M15: 7,285,865 km (0.096 R)
• M16: 7,627,397 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.4

Radius: 14.4

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.15 AU - 1.65 AU

Year: 1124 Days

Day: 9.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,177,348 km

• M1: 179,817 km (0.061 R)
• M2: 799,301 km (0.105 R)
• M3: 1,412,054 km (0.043 R)
• M4: 2,411,966 km (0.117 R)
• M5: 3,274,249 km (0.051 R)
• M6: 3,953,573 km (0.111 R)
• M7: 4,615,094 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.9

Radius: 12.1

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.24 AU - 3.1 AU

Year: 2959 Days

Day: 5.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 174.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,177,348 km

• M1: 150,495 km (0.078 R)
• M2: 777,011 km (0.08 R)
• M3: 1,859,202 km (0.12 R)
• M4: 2,759,034 km (0.073 R)
• M5: 3,380,912 km (0.108 R)
• M6: 3,840,028 km (0.11 R)
• M7: 4,577,246 km (0.119 R)
• M8: 5,184,913 km (0.096 R)
• M9: 7,225,727 km (0.099 R)
• M10: 9,291,524 km (0.052 R)
• M11: 10,163,679 km (0.091 R)
• M12: 14,119,795 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.4

Radius: 13.9

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 3.8 AU - 5.06 AU

Year: 6324 Days

Day: 10.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,177,348 km

• M1: 173,534 km (0.119 R)
• M2: 798,105 km (0.054 R)
• M3: 2,172,909 km (0.086 R)
• M4: 2,690,219 km (0.075 R)
• M5: 3,331,395 km (0.084 R)
• M6: 4,025,230 km (0.062 R)
• M7: 4,627,212 km (0.115 R)
• M8: 5,463,763 km (0.067 R)
• M9: 6,301,062 km (0.061 R)
• M10: 7,438,754 km (0.057 R)
• M11: 8,076,191 km (0.063 R)
• M12: 8,996,517 km (0.066 R)
• M13: 10,119,847 km (0.113 R)
• M14: 10,576,121 km (0.113 R)
• M15: 12,801,987 km (0.065 R)
• M16: 13,829,874 km (0.09 R)
• M17: 17,439,073 km (0.063 R)
• M18: 18,029,835 km (0.053 R)
• M19: 21,039,145 km (0.076 R)
• M20: 23,406,382 km (0.114 R)
• M21: 23,884,347 km (0.067 R)
• M22: 31,762,022 km (0.092 R)
• M23: 32,742,935 km (0.083 R)
• M24: 33,441,557 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 195.8

Radius: 7.6

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 5.31 AU - 6.93 AU

Year: 10269 Days

Day: 23.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,177,348 km

• M1: 94,695 km (0.095 R)
• M2: 350,807 km (0.082 R)
• M3: 768,185 km (0.099 R)
• M4: 1,421,778 km (0.081 R)
• M5: 1,923,081 km (0.075 R)
• M6: 2,824,109 km (0.108 R)
• M7: 4,600,135 km (0.097 R)
• M8: 5,966,561 km (0.118 R)
• M9: 7,511,758 km (0.107 R)
• M10: 7,842,818 km (0.105 R)
• M11: 10,484,417 km (0.081 R)
• M12: 10,898,055 km (0.106 R)
• M13: 15,242,377 km (0.066 R)
• M14: 16,316,939 km (0.101 R)
• M15: 18,350,423 km (0.098 R)
• M16: 19,427,976 km (0.113 R)
• M17: 19,842,811 km (0.067 R)
• M18: 21,195,326 km (0.117 R)
• M19: 21,931,347 km (0.1 R)
• M20: 23,610,284 km (0.082 R)
• M21: 24,803,177 km (0.082 R)
• M22: 27,394,661 km (0.086 R)
• M23: 28,091,638 km (0.113 R)
• M24: 31,375,161 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 599.8

Radius: 5.4

Gravity: 20.57 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 6.69 AU - 6.85 AU

Year: 11947 Days

Day: 16.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 164.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 53,177,348 km

• M1: 67,319 km (0.101 R)
• M2: 255,513 km (0.09 R)
• M3: 973,433 km (0.112 R)
• M4: 1,741,020 km (0.117 R)
• M5: 2,452,956 km (0.08 R)
• M6: 2,700,391 km (0.057 R)
• M7: 4,797,454 km (0.068 R)
• M8: 8,414,431 km (0.098 R)
• M9: 9,171,397 km (0.085 R)
• M10: 9,667,014 km (0.076 R)
• M11: 11,542,673 km (0.064 R)
• M12: 12,179,062 km (0.032 R)
• M13: 14,293,628 km (0.039 R)
• M14: 15,645,544 km (0.079 R)
• M15: 16,713,822 km (0.06 R)
• M16: 18,994,741 km (0.108 R)
• M17: 22,347,528 km (0.099 R)
• M18: 22,882,191 km (0.093 R)
• M19: 32,980,047 km (0.112 R)
• M20: 33,209,979 km (0.091 R)
• M21: 38,797,161 km (0.061 R)
• M22: 40,746,271 km (0.068 R)
• M23: 45,262,332 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 226.2

Radius: 6.3

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 6.75 AU - 7.43 AU

Year: 12804 Days

Day: 17.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 53,177,348 km

• M1: 79,586 km (0.055 R)
• M2: 290,968 km (0.067 R)
• M3: 644,767 km (0.118 R)
• M4: 915,988 km (0.058 R)
• M5: 1,262,456 km (0.105 R)
• M6: 1,597,256 km (0.09 R)
• M7: 1,822,700 km (0.097 R)
• M8: 2,101,700 km (0.094 R)
• M9: 2,408,975 km (0.109 R)
• M10: 2,611,231 km (0.084 R)
• M11: 3,848,704 km (0.114 R)
• M12: 5,189,550 km (0.096 R)
• M13: 5,403,774 km (0.112 R)
• M14: 5,981,970 km (0.061 R)
• M15: 7,298,731 km (0.107 R)
• M16: 7,607,052 km (0.112 R)
• M17: 9,103,180 km (0.098 R)
• M18: 9,597,003 km (0.116 R)
• M19: 10,108,478 km (0.118 R)
• M20: 11,962,893 km (0.119 R)
• M21: 12,391,790 km (0.104 R)
• M22: 14,091,820 km (0.103 R)
• M23: 16,070,402 km (0.054 R)
• M24: 20,875,186 km (0.077 R)
• M25: 21,262,345 km (0.118 R)
• M26: 24,790,761 km (0.113 R)
• M27: 26,108,120 km (0.094 R)
• M28: 26,557,362 km (0.074 R)
• M29: 28,123,652 km (0.05 R)
• M30: 28,690,777 km (0.114 R)
• M31: 32,255,246 km (0.103 R)
• M32: 32,461,541 km (0.073 R)
• M33: 35,005,752 km (0.107 R)
• M34: 38,253,821 km (0.091 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 436.8

Radius: 4.1

Gravity: 25.98 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 7.46 AU - 8.04 AU

Year: 14633 Days

Day: 22.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,177,348 km

• M1: 55,202 km (0.118 R)
• M2: 321,336 km (0.074 R)
• M3: 758,162 km (0.092 R)
• M4: 1,242,410 km (0.06 R)
• M5: 1,874,761 km (0.098 R)
• M6: 2,447,870 km (0.06 R)
• M7: 6,455,597 km (0.096 R)
• M8: 6,691,812 km (0.117 R)
• M9: 7,098,269 km (0.11 R)
• M10: 7,564,117 km (0.097 R)
• M11: 7,826,661 km (0.116 R)
• M12: 19,065,501 km (0.08 R)
• M13: 20,973,921 km (0.07 R)
• M14: 25,750,132 km (0.102 R)
• M15: 28,389,188 km (0.085 R)
• M16: 29,665,856 km (0.099 R)
• M17: 31,539,121 km (0.103 R)
• M18: 32,908,091 km (0.113 R)
• M19: 39,429,212 km (0.113 R)
• M20: 40,482,680 km (0.095 R)
• M21: 43,616,007 km (0.094 R)
• M22: 45,744,187 km (0.115 R)
• M23: 49,595,284 km (0.072 R)
• M24: 52,859,211 km (0.12 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 15,782 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit