🌌 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: 390.1

Radius: 10.9

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.55 AU - 0.61 AU

Year: 305 Days

Day: 10.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 58.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,406,538 km

• M1: 135,536 km (0.113 R)
• M2: 524,041 km (0.113 R)
• M3: 1,027,438 km (0.025 R)
• M4: 1,633,609 km (0.096 R)
• M5: 1,994,588 km (0.075 R)
• M6: 2,983,430 km (0.107 R)
• M7: 3,614,584 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.1

Radius: 11.3

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.6 AU - 0.7 AU

Year: 362 Days

Day: 5.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,406,538 km

• M1: 140,622 km (0.089 R)
• M2: 962,214 km (0.111 R)
• M3: 1,386,323 km (0.075 R)
• M4: 2,571,438 km (0.1 R)
• M5: 3,308,507 km (0.086 R)
• M6: 4,568,270 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.9

Radius: 14.3

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.76 AU - 0.94 AU

Year: 541 Days

Day: 6 Hours

Environment

Temp: -168 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,406,538 km

• M1: 177,872 km (0.054 R)
• M2: 990,188 km (0.099 R)
• M3: 1,550,582 km (0.109 R)
• M4: 2,025,406 km (0.054 R)
• M5: 2,507,560 km (0.036 R)
• M6: 3,032,648 km (0.078 R)
• M7: 4,220,904 km (0.106 R)
• M8: 4,938,226 km (0.119 R)
• M9: 5,916,297 km (0.104 R)
• M10: 6,917,705 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.3

Radius: 10.6

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.12 AU - 1.56 AU

Year: 1071 Days

Day: 9.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,406,538 km

• M1: 132,693 km (0.098 R)
• M2: 552,465 km (0.093 R)
• M3: 1,467,106 km (0.085 R)
• M4: 1,937,891 km (0.076 R)
• M5: 2,561,265 km (0.105 R)
• M6: 3,483,536 km (0.076 R)
• M7: 4,087,762 km (0.048 R)
• M8: 4,793,714 km (0.084 R)
• M9: 6,227,161 km (0.06 R)
• M10: 6,777,382 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47

Radius: 13.1

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 2.1 AU - 2.16 AU

Year: 2146 Days

Day: 9.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,406,538 km

• M1: 162,912 km (0.103 R)
• M2: 609,312 km (0.111 R)
• M3: 1,053,019 km (0.11 R)
• M4: 1,538,315 km (0.097 R)
• M5: 2,165,130 km (0.058 R)
• M6: 2,632,324 km (0.11 R)
• M7: 3,336,182 km (0.083 R)
• M8: 4,655,935 km (0.102 R)
• M9: 5,272,278 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.8

Radius: 9

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.3 AU - 3.24 AU

Year: 3182 Days

Day: 8.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 43,406,538 km

• M1: 115,041 km (0.092 R)
• M2: 480,658 km (0.113 R)
• M3: 1,041,650 km (0.119 R)
• M4: 1,339,051 km (0.084 R)
• M5: 1,704,219 km (0.073 R)
• M6: 2,159,296 km (0.094 R)
• M7: 2,449,067 km (0.08 R)
• M8: 2,822,463 km (0.078 R)
• M9: 3,379,565 km (0.103 R)
• M10: 4,101,375 km (0.101 R)
• M11: 4,549,271 km (0.083 R)
• M12: 5,094,705 km (0.056 R)
• M13: 5,428,757 km (0.11 R)
• M14: 6,240,475 km (0.079 R)
• M15: 7,549,756 km (0.093 R)
• M16: 8,810,267 km (0.051 R)
• M17: 9,657,889 km (0.091 R)
• M18: 10,702,082 km (0.057 R)
• M19: 11,177,355 km (0.118 R)
• M20: 11,858,474 km (0.111 R)
• M21: 13,682,371 km (0.051 R)
• M22: 14,728,060 km (0.116 R)
• M23: 15,179,098 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.4

Radius: 11.4

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.37 AU - 4.29 AU

Year: 5174 Days

Day: 14.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 122.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,406,538 km

• M1: 141,819 km (0.119 R)
• M2: 502,798 km (0.116 R)
• M3: 916,287 km (0.063 R)
• M4: 1,313,320 km (0.116 R)
• M5: 1,859,502 km (0.086 R)
• M6: 2,368,284 km (0.116 R)
• M7: 3,462,892 km (0.119 R)
• M8: 4,162,262 km (0.068 R)
• M9: 5,419,332 km (0.1 R)
• M10: 5,938,886 km (0.109 R)
• M11: 6,491,500 km (0.03 R)
• M12: 7,328,052 km (0.026 R)
• M13: 8,700,163 km (0.108 R)
• M14: 10,593,324 km (0.04 R)
• M15: 10,995,294 km (0.054 R)
• M16: 12,143,458 km (0.118 R)
• M17: 12,869,905 km (0.096 R)
• M18: 13,285,787 km (0.078 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711

Radius: 13.2

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.8 AU - 4.04 AU

Year: 5357 Days

Day: 5.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,406,538 km

• M1: 164,408 km (0.105 R)
• M2: 661,821 km (0.067 R)
• M3: 1,113,008 km (0.099 R)
• M4: 1,884,335 km (0.06 R)
• M5: 2,375,315 km (0.111 R)
• M6: 3,491,913 km (0.068 R)
• M7: 4,193,228 km (0.054 R)
• M8: 5,291,426 km (0.096 R)
• M9: 5,817,412 km (0.095 R)
• M10: 6,872,825 km (0.077 R)
• M11: 8,165,800 km (0.11 R)
• M12: 9,072,961 km (0.109 R)
• M13: 10,581,207 km (0.063 R)
• M14: 12,655,830 km (0.115 R)
• M15: 13,707,952 km (0.105 R)
• M16: 14,255,480 km (0.106 R)
• M17: 15,219,788 km (0.085 R)
• M18: 16,470,576 km (0.074 R)
• M19: 18,243,311 km (0.036 R)
• M20: 21,500,056 km (0.089 R)
• M21: 22,692,052 km (0.113 R)
• M22: 24,006,270 km (0.029 R)
• M23: 28,784,126 km (0.101 R)
• M24: 31,254,286 km (0.069 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.7

Radius: 9.1

Gravity: 11.09 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.24 AU - 5.52 AU

Year: 7441 Days

Day: 8.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,406,538 km

• M1: 113,246 km (0.08 R)
• M2: 561,740 km (0.095 R)
• M3: 1,180,028 km (0.077 R)
• M4: 1,518,568 km (0.055 R)
• M5: 2,099,606 km (0.102 R)
• M6: 2,583,705 km (0.084 R)
• M7: 4,782,345 km (0.071 R)
• M8: 7,237,844 km (0.111 R)
• M9: 7,594,635 km (0.084 R)
• M10: 8,046,720 km (0.084 R)
• M11: 8,560,289 km (0.066 R)
• M12: 10,282,161 km (0.112 R)
• M13: 11,198,298 km (0.054 R)
• M14: 12,616,486 km (0.091 R)
• M15: 14,397,299 km (0.061 R)
• M16: 15,477,695 km (0.083 R)
• M17: 15,871,736 km (0.099 R)
• M18: 16,748,230 km (0.114 R)
• M19: 17,799,304 km (0.036 R)
• M20: 23,377,659 km (0.104 R)
• M21: 26,700,677 km (0.099 R)
• M22: 28,720,398 km (0.096 R)
• M23: 30,530,831 km (0.116 R)
• M24: 37,466,787 km (0.045 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 16,079 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit