🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.6

Radius: 12.9

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.8 AU - 1.3 AU

Year: 706 Days

Day: 9.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,671,380 km

• M1: 160,519 km (0.045 R)
• M2: 599,439 km (0.044 R)
• M3: 1,100,592 km (0.089 R)
• M4: 1,520,363 km (0.095 R)
• M5: 1,979,329 km (0.113 R)
• M6: 2,604,499 km (0.115 R)
• M7: 3,076,331 km (0.097 R)
• M8: 3,486,977 km (0.055 R)
• M9: 4,121,272 km (0.096 R)
• M10: 4,979,664 km (0.114 R)
• M11: 6,496,587 km (0.114 R)
• M12: 7,264,473 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117

Radius: 11.8

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.86 AU - 1.4 AU

Year: 788 Days

Day: 7.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,671,380 km

• M1: 148,102 km (0.099 R)
• M2: 523,742 km (0.098 R)
• M3: 1,879,847 km (0.105 R)
• M4: 2,713,556 km (0.113 R)
• M5: 4,623,023 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.7

Radius: 12.1

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.89 AU - 1.47 AU

Year: 841 Days

Day: 5 Hours

Environment

Temp: -163 °C

Axial Tilt: 64.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,671,380 km

• M1: 150,495 km (0.073 R)
• M2: 576,251 km (0.102 R)
• M3: 1,059,602 km (0.103 R)
• M4: 1,544,748 km (0.071 R)
• M5: 1,948,961 km (0.062 R)
• M6: 2,382,047 km (0.12 R)
• M7: 3,245,077 km (0.108 R)
• M8: 3,684,596 km (0.108 R)
• M9: 4,484,346 km (0.116 R)
• M10: 5,996,780 km (0.086 R)
• M11: 6,449,613 km (0.097 R)
• M12: 6,991,606 km (0.049 R)
• M13: 7,658,513 km (0.068 R)
• M14: 8,493,718 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.7

Radius: 12.1

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.05 AU - 1.65 AU

Year: 1029 Days

Day: 8.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,671,380 km

• M1: 154,983 km (0.085 R)
• M2: 645,216 km (0.034 R)
• M3: 1,118,244 km (0.031 R)
• M4: 1,579,006 km (0.119 R)
• M5: 2,087,040 km (0.102 R)
• M6: 3,035,640 km (0.095 R)
• M7: 3,493,858 km (0.102 R)
• M8: 3,936,518 km (0.103 R)
• M9: 4,953,634 km (0.113 R)
• M10: 6,034,479 km (0.073 R)
• M11: 6,478,336 km (0.028 R)
• M12: 7,337,028 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.6

Radius: 11

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.65 AU - 1.81 AU

Year: 1493 Days

Day: 11.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,671,380 km

• M1: 136,882 km (0.113 R)
• M2: 558,598 km (0.119 R)
• M3: 906,264 km (0.056 R)
• M4: 1,259,614 km (0.119 R)
• M5: 1,678,039 km (0.107 R)
• M6: 2,508,307 km (0.072 R)
• M7: 3,135,721 km (0.084 R)
• M8: 3,882,364 km (0.072 R)
• M9: 4,373,494 km (0.045 R)
• M10: 4,763,645 km (0.068 R)
• M11: 5,888,920 km (0.1 R)
• M12: 6,766,162 km (0.099 R)
• M13: 7,784,325 km (0.115 R)
• M14: 8,840,486 km (0.069 R)
• M15: 9,244,550 km (0.06 R)
• M16: 10,462,576 km (0.078 R)
• M17: 10,879,655 km (0.076 R)
• M18: 12,660,617 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.3

Radius: 9.8

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.71 AU - 2.83 AU

Year: 2244 Days

Day: 8.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,671,380 km

• M1: 122,521 km (0.083 R)
• M2: 746,942 km (0.056 R)
• M3: 1,292,526 km (0.112 R)
• M4: 1,620,444 km (0.066 R)
• M5: 2,368,284 km (0.09 R)
• M6: 3,608,151 km (0.079 R)
• M7: 6,690,466 km (0.082 R)
• M8: 7,191,918 km (0.106 R)
• M9: 7,929,884 km (0.08 R)
• M10: 9,013,421 km (0.066 R)
• M11: 9,800,605 km (0.095 R)
• M12: 10,707,318 km (0.101 R)
• M13: 12,191,478 km (0.063 R)
• M14: 14,807,048 km (0.105 R)
• M15: 16,594,443 km (0.045 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.6

Radius: 12.1

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.29 AU - 3.07 AU

Year: 2878 Days

Day: 12.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,671,380 km

• M1: 150,645 km (0.081 R)
• M2: 1,069,176 km (0.09 R)
• M3: 1,486,554 km (0.066 R)
• M4: 2,189,066 km (0.09 R)
• M5: 4,048,268 km (0.078 R)
• M6: 5,025,292 km (0.105 R)
• M7: 5,581,347 km (0.058 R)
• M8: 6,352,674 km (0.111 R)
• M9: 6,923,240 km (0.097 R)
• M10: 8,137,376 km (0.075 R)
• M11: 8,874,146 km (0.12 R)
• M12: 10,516,431 km (0.106 R)
• M13: 12,392,388 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.5

Radius: 8.6

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 5.67 AU - 6.09 AU

Year: 9354 Days

Day: 13.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 21,671,380 km

• M1: 107,112 km (0.103 R)
• M2: 403,316 km (0.1 R)
• M3: 744,549 km (0.107 R)
• M4: 1,039,855 km (0.085 R)
• M5: 1,558,660 km (0.059 R)
• M6: 2,154,658 km (0.103 R)
• M7: 3,176,412 km (0.111 R)
• M8: 3,922,755 km (0.115 R)
• M9: 4,463,252 km (0.085 R)
• M10: 4,781,148 km (0.116 R)
• M11: 5,052,369 km (0.101 R)
• M12: 5,793,178 km (0.082 R)
• M13: 6,101,948 km (0.064 R)
• M14: 6,421,788 km (0.05 R)
• M15: 8,023,083 km (0.098 R)
• M16: 9,305,736 km (0.098 R)
• M17: 9,874,507 km (0.07 R)
• M18: 12,160,362 km (0.089 R)
• M19: 12,667,948 km (0.079 R)
• M20: 15,290,698 km (0.104 R)
• M21: 16,625,859 km (0.084 R)
• M22: 17,181,016 km (0.1 R)
• M23: 22,326,884 km (0.082 R)
• M24: 25,475,919 km (0.084 R)
• M25: 29,915,086 km (0.101 R)
• M26: 35,638,551 km (0.115 R)
• M27: 35,982,776 km (0.075 R)
• M28: 36,561,420 km (0.072 R)
• M29: 39,917,050 km (0.111 R)
• M30: 40,786,962 km (0.103 R)
• M31: 42,952,241 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.2

Radius: 3.3

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.7 AU - 7.86 AU

Year: 11581 Days

Day: 24.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,671,380 km

• M1: 41,439 km (0.058 R)
• M2: 495,767 km (0.117 R)
• M3: 1,172,548 km (0.106 R)
• M4: 1,598,304 km (0.077 R)
• M5: 2,478,388 km (0.091 R)
• M6: 4,046,772 km (0.066 R)
• M7: 6,119,450 km (0.071 R)
• M8: 9,239,464 km (0.119 R)
• M9: 12,011,063 km (0.113 R)
• M10: 16,502,740 km (0.117 R)
• M11: 16,611,198 km (0.065 R)
• M12: 17,049,669 km (0.079 R)
• M13: 17,778,510 km (0.066 R)
• M14: 18,469,503 km (0.112 R)
• M15: 20,212,916 km (0.11 R)
• M16: 21,348,514 km (0.099 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 405 - 14,020 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit