🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.9

Radius: 11.8

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.61 AU - 0.81 AU

Year: 421 Days

Day: 5.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,846,211 km

• M1: 146,756 km (0.074 R)
• M2: 562,189 km (0.087 R)
• M3: 1,034,469 km (0.084 R)
• M4: 1,728,603 km (0.059 R)
• M5: 2,542,416 km (0.106 R)
• M6: 2,966,825 km (0.099 R)
• M7: 3,459,451 km (0.042 R)
• M8: 3,847,508 km (0.034 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.8

Radius: 8.7

Gravity: 11.39 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.68 AU - 0.94 AU

Year: 512 Days

Day: 7.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,846,211 km

• M1: 108,309 km (0.113 R)
• M2: 412,292 km (0.107 R)
• M3: 727,794 km (0.118 R)
• M4: 1,137,243 km (0.082 R)
• M5: 2,003,564 km (0.076 R)
• M6: 2,509,355 km (0.057 R)
• M7: 2,888,436 km (0.045 R)
• M8: 3,368,196 km (0.063 R)
• M9: 3,694,469 km (0.083 R)
• M10: 3,984,689 km (0.069 R)
• M11: 4,260,398 km (0.117 R)
• M12: 4,948,548 km (0.057 R)
• M13: 5,985,112 km (0.064 R)
• M14: 6,367,484 km (0.096 R)
• M15: 6,930,121 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.2

Radius: 10.7

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.95 AU - 1.17 AU

Year: 767 Days

Day: 5.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 35,846,211 km

• M1: 133,142 km (0.108 R)
• M2: 520,152 km (0.1 R)
• M3: 1,052,122 km (0.111 R)
• M4: 1,702,424 km (0.1 R)
• M5: 3,874,435 km (0.064 R)
• M6: 5,421,277 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.1

Radius: 13.6

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.12 AU - 1.72 AU

Year: 1189 Days

Day: 6.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,846,211 km

• M1: 169,345 km (0.098 R)
• M2: 619,784 km (0.063 R)
• M3: 1,076,506 km (0.105 R)
• M4: 1,528,441 km (0.064 R)
• M5: 2,120,550 km (0.083 R)
• M6: 3,082,015 km (0.117 R)
• M7: 3,600,222 km (0.106 R)
• M8: 4,159,120 km (0.113 R)
• M9: 5,027,236 km (0.101 R)
• M10: 5,557,561 km (0.072 R)
• M11: 6,261,419 km (0.055 R)
• M12: 7,249,513 km (0.083 R)
• M13: 7,874,682 km (0.031 R)
• M14: 9,719,374 km (0.1 R)
• M15: 11,907,841 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.3

Radius: 11.8

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.47 AU - 2.13 AU

Year: 1698 Days

Day: 10.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,846,211 km

• M1: 146,905 km (0.11 R)
• M2: 608,415 km (0.097 R)
• M3: 1,054,964 km (0.104 R)
• M4: 1,476,381 km (0.07 R)
• M5: 2,000,572 km (0.073 R)
• M6: 2,417,053 km (0.059 R)
• M7: 3,137,367 km (0.045 R)
• M8: 3,738,002 km (0.105 R)
• M9: 5,318,653 km (0.111 R)
• M10: 6,199,037 km (0.117 R)
• M11: 7,629,791 km (0.11 R)
• M12: 8,190,932 km (0.082 R)
• M13: 8,809,370 km (0.094 R)
• M14: 9,682,273 km (0.048 R)
• M15: 10,139,893 km (0.093 R)
• M16: 11,169,426 km (0.113 R)
• M17: 12,004,780 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.7

Radius: 11.6

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.78 AU - 2.12 AU

Year: 1914 Days

Day: 8.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,846,211 km

• M1: 144,362 km (0.114 R)
• M2: 521,498 km (0.075 R)
• M3: 930,798 km (0.107 R)
• M4: 1,724,265 km (0.062 R)
• M5: 2,233,047 km (0.101 R)
• M6: 2,940,197 km (0.118 R)
• M7: 3,523,329 km (0.061 R)
• M8: 4,522,493 km (0.091 R)
• M9: 5,746,802 km (0.096 R)
• M10: 8,009,769 km (0.091 R)
• M11: 8,657,528 km (0.094 R)
• M12: 9,467,750 km (0.105 R)
• M13: 12,014,055 km (0.047 R)
• M14: 12,823,978 km (0.073 R)
• M15: 13,465,155 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.3

Radius: 13.8

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.48 AU - 4.72 AU

Year: 5836 Days

Day: 9.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,846,211 km

• M1: 171,589 km (0.117 R)
• M2: 1,240,615 km (0.077 R)
• M3: 2,097,661 km (0.038 R)
• M4: 2,614,522 km (0.117 R)
• M5: 3,279,335 km (0.063 R)
• M6: 3,838,233 km (0.052 R)
• M7: 5,444,764 km (0.118 R)
• M8: 5,940,831 km (0.061 R)
• M9: 6,603,250 km (0.038 R)
• M10: 8,849,013 km (0.069 R)
• M11: 9,581,295 km (0.067 R)
• M12: 10,923,637 km (0.081 R)
• M13: 12,976,419 km (0.103 R)
• M14: 15,033,838 km (0.11 R)
• M15: 16,393,383 km (0.093 R)
• M16: 22,111,164 km (0.112 R)
• M17: 25,202,304 km (0.058 R)
• M18: 26,762,610 km (0.061 R)
• M19: 30,846,931 km (0.117 R)
• M20: 32,329,297 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 842.8

Radius: 6.9

Gravity: 17.7 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 6.7 AU - 6.82 AU

Year: 12355 Days

Day: 18.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 35,846,211 km

• M1: 85,869 km (0.088 R)
• M2: 465,848 km (0.104 R)
• M3: 697,575 km (0.106 R)
• M4: 1,354,609 km (0.119 R)
• M5: 1,571,226 km (0.115 R)
• M6: 1,811,181 km (0.102 R)
• M7: 2,112,920 km (0.102 R)
• M8: 3,808,762 km (0.082 R)
• M9: 4,037,796 km (0.112 R)
• M10: 5,116,098 km (0.062 R)
• M11: 5,431,151 km (0.114 R)
• M12: 6,864,448 km (0.092 R)
• M13: 7,423,046 km (0.07 R)
• M14: 9,332,813 km (0.1 R)
• M15: 12,399,719 km (0.118 R)
• M16: 13,821,796 km (0.096 R)
• M17: 15,565,958 km (0.115 R)
• M18: 16,005,327 km (0.088 R)
• M19: 16,832,453 km (0.094 R)
• M20: 19,316,675 km (0.095 R)
• M21: 21,490,183 km (0.1 R)
• M22: 22,126,722 km (0.085 R)
• M23: 23,342,354 km (0.119 R)
• M24: 25,600,983 km (0.097 R)
• M25: 26,316,360 km (0.064 R)
• M26: 26,835,315 km (0.106 R)
• M27: 27,467,216 km (0.105 R)
• M28: 27,786,907 km (0.111 R)
• M29: 31,120,995 km (0.116 R)
• M30: 31,935,555 km (0.092 R)
• M31: 36,865,403 km (0.042 R)
• M32: 38,304,984 km (0.109 R)
• M33: 45,620,319 km (0.07 R)
• M34: 46,369,206 km (0.059 R)
• M35: 51,196,430 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 73.5

Radius: 5.4

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 6.93 AU - 11.55 AU

Year: 19743 Days

Day: 19.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,846,211 km

• M1: 84,074 km (0.059 R)
• M2: 275,858 km (0.107 R)
• M3: 606,320 km (0.075 R)
• M4: 2,374,268 km (0.113 R)
• M5: 4,098,682 km (0.113 R)
• M6: 4,539,547 km (0.067 R)
• M7: 5,576,859 km (0.063 R)
• M8: 6,418,048 km (0.104 R)
• M9: 8,268,424 km (0.106 R)
• M10: 9,315,160 km (0.096 R)
• M11: 9,623,332 km (0.082 R)
• M12: 10,588,986 km (0.069 R)
• M13: 11,668,185 km (0.106 R)
• M14: 12,764,887 km (0.12 R)
• M15: 12,981,355 km (0.1 R)
• M16: 13,366,121 km (0.111 R)
• M17: 16,274,453 km (0.067 R)
• M18: 20,157,715 km (0.102 R)
• M19: 23,790,699 km (0.079 R)
• M20: 24,699,805 km (0.099 R)
• M21: 29,125,658 km (0.079 R)
• M22: 30,165,663 km (0.071 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 13,547 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit