🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.6

Radius: 14.6

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.85 AU - 0.89 AU

Year: 570 Days

Day: 7.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 80 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 31,282,666 km

• M1: 181,612 km (0.027 R)
• M2: 662,868 km (0.103 R)
• M3: 1,235,080 km (0.072 R)
• M4: 1,723,667 km (0.108 R)
• M5: 2,523,267 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.3

Radius: 13

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.08 AU - 1.7 AU

Year: 1152 Days

Day: 10.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,282,666 km

• M1: 161,715 km (0.054 R)
• M2: 668,403 km (0.098 R)
• M3: 1,426,715 km (0.086 R)
• M4: 1,897,051 km (0.053 R)
• M5: 2,317,570 km (0.109 R)
• M6: 3,292,051 km (0.077 R)
• M7: 3,807,565 km (0.103 R)
• M8: 4,340,732 km (0.074 R)
• M9: 4,768,283 km (0.105 R)
• M10: 5,665,421 km (0.049 R)
• M11: 6,154,756 km (0.106 R)
• M12: 7,581,770 km (0.05 R)
• M13: 8,011,864 km (0.099 R)
• M14: 9,401,029 km (0.078 R)
• M15: 10,057,016 km (0.099 R)
• M16: 10,544,107 km (0.066 R)
• M17: 11,920,706 km (0.043 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.8

Radius: 13.3

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.42 AU - 1.86 AU

Year: 1476 Days

Day: 8.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,282,666 km

• M1: 166,353 km (0.095 R)
• M2: 596,297 km (0.089 R)
• M3: 1,121,236 km (0.11 R)
• M4: 1,898,547 km (0.114 R)
• M5: 2,334,475 km (0.09 R)
• M6: 2,824,857 km (0.064 R)
• M7: 3,384,053 km (0.106 R)
• M8: 3,851,397 km (0.035 R)
• M9: 5,313,866 km (0.069 R)
• M10: 6,216,689 km (0.109 R)
• M11: 7,119,363 km (0.119 R)
• M12: 7,550,653 km (0.118 R)
• M13: 9,334,159 km (0.079 R)
• M14: 10,978,389 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.5

Radius: 13.3

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.52 AU - 2.34 AU

Year: 1885 Days

Day: 6.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,282,666 km

• M1: 165,455 km (0.113 R)
• M2: 616,493 km (0.039 R)
• M3: 1,521,859 km (0.115 R)
• M4: 3,164,145 km (0.085 R)
• M5: 4,867,915 km (0.031 R)
• M6: 5,523,153 km (0.119 R)
• M7: 8,412,337 km (0.041 R)
• M8: 9,131,304 km (0.084 R)
• M9: 11,461,291 km (0.095 R)
• M10: 12,188,636 km (0.083 R)
• M11: 13,151,149 km (0.115 R)
• M12: 13,948,505 km (0.098 R)
• M13: 14,556,471 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.3

Radius: 14

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.34 AU - 2.44 AU

Year: 2597 Days

Day: 9.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 31,282,666 km

• M1: 179,966 km (0.051 R)
• M2: 856,747 km (0.102 R)
• M3: 1,369,868 km (0.114 R)
• M4: 1,958,984 km (0.115 R)
• M5: 2,805,708 km (0.087 R)
• M6: 3,323,167 km (0.113 R)
• M7: 3,865,908 km (0.067 R)
• M8: 4,322,032 km (0.117 R)
• M9: 4,903,519 km (0.089 R)
• M10: 5,391,507 km (0.069 R)
• M11: 6,224,618 km (0.088 R)
• M12: 6,968,568 km (0.065 R)
• M13: 7,864,061 km (0.061 R)
• M14: 8,601,578 km (0.114 R)
• M15: 9,176,034 km (0.089 R)
• M16: 11,291,498 km (0.037 R)
• M17: 11,775,297 km (0.109 R)
• M18: 12,569,961 km (0.036 R)
• M19: 13,089,963 km (0.047 R)
• M20: 15,364,300 km (0.065 R)
• M21: 16,059,930 km (0.054 R)
• M22: 17,248,335 km (0.105 R)
• M23: 18,717,386 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.5

Radius: 10.2

Gravity: 8.07 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.45 AU - 2.99 AU

Year: 3153 Days

Day: 7.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,282,666 km

• M1: 126,859 km (0.083 R)
• M2: 739,911 km (0.096 R)
• M3: 1,266,795 km (0.087 R)
• M4: 1,928,616 km (0.094 R)
• M5: 2,692,163 km (0.063 R)
• M6: 3,117,021 km (0.095 R)
• M7: 4,277,901 km (0.058 R)
• M8: 4,883,323 km (0.084 R)
• M9: 5,283,647 km (0.097 R)
• M10: 5,897,597 km (0.083 R)
• M11: 6,588,290 km (0.116 R)
• M12: 7,690,976 km (0.044 R)
• M13: 11,300,773 km (0.094 R)
• M14: 12,922,563 km (0.108 R)
• M15: 14,848,935 km (0.109 R)
• M16: 15,907,639 km (0.119 R)
• M17: 19,884,998 km (0.053 R)
• M18: 23,551,791 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 407.6

Radius: 7.2

Gravity: 7.86 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 5.12 AU - 6.26 AU

Year: 9541 Days

Day: 16.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 31,282,666 km

• M1: 92,451 km (0.098 R)
• M2: 396,734 km (0.036 R)
• M3: 782,696 km (0.077 R)
• M4: 1,284,896 km (0.043 R)
• M5: 2,717,745 km (0.041 R)
• M6: 3,320,474 km (0.059 R)
• M7: 3,834,642 km (0.058 R)
• M8: 4,347,015 km (0.056 R)
• M9: 5,021,103 km (0.104 R)
• M10: 5,291,127 km (0.082 R)
• M11: 5,666,169 km (0.088 R)
• M12: 6,434,803 km (0.093 R)
• M13: 6,862,354 km (0.1 R)
• M14: 8,425,801 km (0.099 R)
• M15: 9,069,072 km (0.087 R)
• M16: 10,023,805 km (0.106 R)
• M17: 12,025,275 km (0.049 R)
• M18: 12,292,906 km (0.116 R)
• M19: 14,518,773 km (0.116 R)
• M20: 17,269,578 km (0.099 R)
• M21: 20,577,038 km (0.066 R)
• M22: 22,459,876 km (0.045 R)
• M23: 26,564,543 km (0.111 R)
• M24: 30,543,846 km (0.095 R)
• M25: 34,363,678 km (0.083 R)
• M26: 35,338,757 km (0.091 R)
• M27: 35,998,932 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 93.2

Radius: 6.3

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.38 AU - 8.52 AU

Year: 14294 Days

Day: 18.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 31,282,666 km

• M1: 78,389 km (0.065 R)
• M2: 453,132 km (0.068 R)
• M3: 793,168 km (0.095 R)
• M4: 1,149,510 km (0.118 R)
• M5: 1,462,618 km (0.089 R)
• M6: 1,804,150 km (0.117 R)
• M7: 2,197,593 km (0.035 R)
• M8: 3,175,514 km (0.038 R)
• M9: 3,529,313 km (0.056 R)
• M10: 4,883,473 km (0.053 R)
• M11: 6,519,774 km (0.055 R)
• M12: 6,751,352 km (0.078 R)
• M13: 7,515,199 km (0.081 R)
• M14: 8,143,809 km (0.065 R)
• M15: 8,373,890 km (0.115 R)
• M16: 12,367,705 km (0.118 R)
• M17: 13,401,276 km (0.054 R)
• M18: 21,415,833 km (0.112 R)
• M19: 22,599,601 km (0.066 R)
• M20: 23,826,303 km (0.112 R)
• M21: 27,086,340 km (0.072 R)
• M22: 29,447,593 km (0.116 R)
• M23: 30,081,439 km (0.075 R)
• M24: 30,355,802 km (0.065 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 459 - 14,082 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit