🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.9

Radius: 11.6

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.56 AU - 0.64 AU

Year: 315 Days

Day: 12.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,148,516 km

• M1: 144,212 km (0.049 R)
• M2: 568,322 km (0.091 R)
• M3: 961,316 km (0.099 R)
• M4: 1,364,033 km (0.09 R)
• M5: 2,135,809 km (0.093 R)
• M6: 2,893,073 km (0.087 R)
• M7: 3,266,170 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.9

Radius: 13.7

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.64 AU - 0.66 AU

Year: 355 Days

Day: 7.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 41,148,516 km

• M1: 170,392 km (0.099 R)
• M2: 609,312 km (0.057 R)
• M3: 1,103,883 km (0.055 R)
• M4: 1,685,519 km (0.041 R)
• M5: 2,173,208 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.1

Radius: 13

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.7 AU - 0.96 AU

Year: 513 Days

Day: 8 Hours

Environment

Temp: -157 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,148,516 km

• M1: 161,715 km (0.116 R)
• M2: 659,128 km (0.104 R)
• M3: 1,267,842 km (0.112 R)
• M4: 1,722,320 km (0.116 R)
• M5: 2,729,862 km (0.101 R)
• M6: 3,752,663 km (0.102 R)
• M7: 4,556,602 km (0.097 R)
• M8: 5,115,200 km (0.045 R)
• M9: 6,011,291 km (0.101 R)
• M10: 6,487,312 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743.1

Radius: 8.2

Gravity: 11.05 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.01 AU - 1.43 AU

Year: 914 Days

Day: 7.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,148,516 km

• M1: 102,175 km (0.083 R)
• M2: 582,983 km (0.031 R)
• M3: 1,209,648 km (0.102 R)
• M4: 2,369,331 km (0.115 R)
• M5: 3,103,557 km (0.099 R)
• M6: 3,871,294 km (0.062 R)
• M7: 4,832,161 km (0.107 R)
• M8: 5,819,208 km (0.066 R)
• M9: 6,548,198 km (0.112 R)
• M10: 7,122,055 km (0.098 R)
• M11: 7,829,354 km (0.062 R)
• M12: 9,786,992 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.9

Radius: 12.8

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.72 AU - 2.82 AU

Year: 2320 Days

Day: 10.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,148,516 km

• M1: 160,668 km (0.083 R)
• M2: 985,551 km (0.108 R)
• M3: 1,403,078 km (0.085 R)
• M4: 2,159,595 km (0.079 R)
• M5: 2,704,879 km (0.107 R)
• M6: 3,107,746 km (0.093 R)
• M7: 3,997,853 km (0.092 R)
• M8: 4,398,776 km (0.073 R)
• M9: 4,938,076 km (0.065 R)
• M10: 5,667,815 km (0.091 R)
• M11: 6,072,028 km (0.073 R)
• M12: 6,826,001 km (0.064 R)
• M13: 7,855,235 km (0.082 R)
• M14: 9,713,689 km (0.064 R)
• M15: 11,727,875 km (0.113 R)
• M16: 12,555,899 km (0.119 R)
• M17: 13,825,237 km (0.115 R)
• M18: 16,414,327 km (0.111 R)
• M19: 17,823,240 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.3

Radius: 13.6

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.46 AU - 3.64 AU

Year: 4537 Days

Day: 6 Hours

Environment

Temp: -210 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,148,516 km

• M1: 170,542 km (0.098 R)
• M2: 659,128 km (0.028 R)
• M3: 1,198,279 km (0.044 R)
• M4: 1,701,825 km (0.075 R)
• M5: 3,057,032 km (0.117 R)
• M6: 3,621,016 km (0.051 R)
• M7: 4,423,609 km (0.073 R)
• M8: 5,369,816 km (0.103 R)
• M9: 6,226,712 km (0.1 R)
• M10: 7,807,214 km (0.034 R)
• M11: 10,326,591 km (0.117 R)
• M12: 11,368,840 km (0.1 R)
• M13: 12,730,779 km (0.09 R)
• M14: 15,953,267 km (0.096 R)
• M15: 19,414,512 km (0.07 R)
• M16: 21,716,076 km (0.109 R)
• M17: 27,106,685 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.8

Radius: 12.1

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.33 AU - 4.73 AU

Year: 5487 Days

Day: 5.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,148,516 km

• M1: 150,495 km (0.094 R)
• M2: 605,871 km (0.118 R)
• M3: 4,631,101 km (0.096 R)
• M4: 5,038,157 km (0.104 R)
• M5: 6,672,963 km (0.096 R)
• M6: 7,158,408 km (0.1 R)
• M7: 8,881,177 km (0.089 R)
• M8: 13,617,146 km (0.095 R)
• M9: 14,745,114 km (0.107 R)
• M10: 15,272,596 km (0.063 R)
• M11: 17,509,533 km (0.095 R)
• M12: 30,034,615 km (0.116 R)
• M13: 31,457,440 km (0.042 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 848.8

Radius: 6.3

Gravity: 21.39 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 5.18 AU - 8 AU

Year: 11474 Days

Day: 19.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 41,148,516 km

• M1: 95,294 km (0.118 R)
• M2: 304,880 km (0.092 R)
• M3: 535,860 km (0.11 R)
• M4: 737,518 km (0.099 R)
• M5: 1,250,189 km (0.062 R)
• M6: 1,806,245 km (0.043 R)
• M7: 2,412,415 km (0.072 R)
• M8: 2,979,092 km (0.081 R)
• M9: 3,369,692 km (0.066 R)
• M10: 3,630,890 km (0.114 R)
• M11: 3,905,402 km (0.088 R)
• M12: 4,282,987 km (0.094 R)
• M13: 4,780,849 km (0.081 R)
• M14: 7,079,719 km (0.075 R)
• M15: 7,685,740 km (0.12 R)
• M16: 13,249,435 km (0.055 R)
• M17: 15,410,675 km (0.094 R)
• M18: 15,840,470 km (0.106 R)
• M19: 16,425,996 km (0.106 R)
• M20: 17,485,298 km (0.116 R)
• M21: 18,669,814 km (0.097 R)
• M22: 19,907,138 km (0.072 R)
• M23: 20,245,977 km (0.103 R)
• M24: 21,285,982 km (0.092 R)
• M25: 23,004,712 km (0.091 R)
• M26: 23,377,958 km (0.055 R)
• M27: 24,425,443 km (0.116 R)
• M28: 25,603,227 km (0.11 R)
• M29: 28,605,357 km (0.06 R)
• M30: 29,473,024 km (0.113 R)
• M31: 29,692,634 km (0.061 R)
• M32: 33,357,034 km (0.081 R)
• M33: 34,197,026 km (0.113 R)
• M34: 39,534,977 km (0.055 R)
• M35: 42,261,398 km (0.046 R)
• M36: 42,681,021 km (0.096 R)
• M37: 45,256,497 km (0.073 R)
• M38: 51,665,121 km (0.048 R)
• M39: 52,305,400 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 226

Radius: 3.3

Gravity: 20.75 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 6.14 AU - 8.8 AU

Year: 13848 Days

Day: 16.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 41,148,516 km

• M1: 40,990 km (0.106 R)
• M2: 515,514 km (0.087 R)
• M3: 730,636 km (0.088 R)
• M4: 1,002,755 km (0.099 R)
• M5: 1,803,552 km (0.117 R)
• M6: 2,072,978 km (0.112 R)
• M7: 3,000,484 km (0.064 R)
• M8: 5,430,104 km (0.066 R)
• M9: 5,787,792 km (0.113 R)
• M10: 6,023,409 km (0.104 R)
• M11: 9,933,149 km (0.119 R)
• M12: 10,222,322 km (0.082 R)
• M13: 15,576,878 km (0.103 R)
• M14: 16,230,471 km (0.076 R)
• M15: 16,698,713 km (0.102 R)
• M16: 17,522,399 km (0.079 R)
• M17: 19,699,048 km (0.089 R)
• M18: 20,385,702 km (0.06 R)
• M19: 23,545,807 km (0.103 R)
• M20: 24,667,642 km (0.067 R)
• M21: 25,197,218 km (0.029 R)
• M22: 25,464,849 km (0.099 R)
• M23: 27,959,244 km (0.094 R)
• M24: 28,342,065 km (0.09 R)
• M25: 30,309,127 km (0.112 R)
• M26: 33,106,158 km (0.071 R)
• M27: 33,427,195 km (0.094 R)
• M28: 34,512,229 km (0.08 R)
• M29: 34,842,242 km (0.094 R)
• M30: 36,752,307 km (0.077 R)
• M31: 36,866,750 km (0.037 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 19,242 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit