🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.6

Radius: 11

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.5 AU - 0.78 AU

Year: 341 Days

Day: 8.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 80,234,938 km

• M1: 136,882 km (0.108 R)
• M2: 527,033 km (0.086 R)
• M3: 1,034,918 km (0.108 R)
• M4: 1,957,787 km (0.094 R)
• M5: 2,329,538 km (0.118 R)
• M6: 2,887,089 km (0.057 R)
• M7: 3,970,178 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.8

Radius: 10.4

Gravity: 7.63 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.88 AU - 1.12 AU

Year: 667 Days

Day: 5.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 80,234,938 km

• M1: 135,536 km (0.055 R)
• M2: 474,375 km (0.117 R)
• M3: 1,025,344 km (0.045 R)
• M4: 1,510,490 km (0.118 R)
• M5: 1,886,130 km (0.086 R)
• M6: 2,273,439 km (0.118 R)
• M7: 2,783,119 km (0.028 R)
• M8: 3,109,392 km (0.111 R)
• M9: 3,640,464 km (0.105 R)
• M10: 4,436,325 km (0.092 R)
• M11: 4,884,370 km (0.11 R)
• M12: 5,344,234 km (0.102 R)
• M13: 6,088,185 km (0.093 R)
• M14: 6,412,812 km (0.042 R)
• M15: 7,365,750 km (0.11 R)
• M16: 7,711,471 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.7

Radius: 10.8

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.02 AU - 1.26 AU

Year: 812 Days

Day: 12.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,234,938 km

• M1: 134,488 km (0.102 R)
• M2: 531,671 km (0.059 R)
• M3: 890,855 km (0.092 R)
• M4: 1,255,575 km (0.081 R)
• M5: 1,621,342 km (0.098 R)
• M6: 2,302,311 km (0.057 R)
• M7: 2,781,024 km (0.12 R)
• M8: 3,610,245 km (0.08 R)
• M9: 4,214,920 km (0.04 R)
• M10: 4,985,050 km (0.076 R)
• M11: 5,501,162 km (0.118 R)
• M12: 6,661,294 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.9

Radius: 8.2

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.37 AU - 2.15 AU

Year: 1557 Days

Day: 12.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,234,938 km

• M1: 102,026 km (0.112 R)
• M2: 399,576 km (0.087 R)
• M3: 1,316,162 km (0.083 R)
• M4: 1,579,604 km (0.087 R)
• M5: 1,839,306 km (0.064 R)
• M6: 2,617,514 km (0.099 R)
• M7: 2,970,864 km (0.03 R)
• M8: 3,326,009 km (0.079 R)
• M9: 3,646,299 km (0.063 R)
• M10: 4,139,373 km (0.086 R)
• M11: 5,258,664 km (0.056 R)
• M12: 5,932,304 km (0.061 R)
• M13: 7,197,752 km (0.11 R)
• M14: 7,631,137 km (0.119 R)
• M15: 8,410,243 km (0.116 R)
• M16: 8,977,817 km (0.105 R)
• M17: 9,241,558 km (0.036 R)
• M18: 10,032,332 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.1

Radius: 11

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.88 AU - 2.76 AU

Year: 2356 Days

Day: 14.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 80,234,938 km

• M1: 137,032 km (0.115 R)
• M2: 640,279 km (0.087 R)
• M3: 1,186,760 km (0.085 R)
• M4: 2,043,058 km (0.117 R)
• M5: 2,435,304 km (0.114 R)
• M6: 3,391,982 km (0.09 R)
• M7: 3,850,200 km (0.074 R)
• M8: 5,878,598 km (0.118 R)
• M9: 7,494,853 km (0.115 R)
• M10: 7,957,111 km (0.112 R)
• M11: 8,770,026 km (0.11 R)
• M12: 10,110,422 km (0.029 R)
• M13: 15,239,535 km (0.105 R)
• M14: 15,732,460 km (0.099 R)
• M15: 17,275,562 km (0.086 R)
• M16: 18,414,152 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.3

Radius: 10.9

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.06 AU - 3 AU

Year: 2684 Days

Day: 9.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,234,938 km

• M1: 144,512 km (0.115 R)
• M2: 638,633 km (0.079 R)
• M3: 1,161,029 km (0.113 R)
• M4: 2,188,467 km (0.118 R)
• M5: 3,318,978 km (0.058 R)
• M6: 4,004,137 km (0.095 R)
• M7: 4,979,216 km (0.069 R)
• M8: 5,803,350 km (0.096 R)
• M9: 6,209,209 km (0.095 R)
• M10: 8,693,282 km (0.118 R)
• M11: 9,709,799 km (0.118 R)
• M12: 12,387,601 km (0.089 R)
• M13: 12,891,597 km (0.071 R)
• M14: 14,857,761 km (0.113 R)
• M15: 15,668,432 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.3

Radius: 11.4

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.16 AU - 4.6 AU

Year: 6113 Days

Day: 5.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 80,234,938 km

• M1: 141,819 km (0.088 R)
• M2: 601,234 km (0.059 R)
• M3: 1,018,612 km (0.097 R)
• M4: 1,400,386 km (0.119 R)
• M5: 1,996,683 km (0.106 R)
• M6: 3,152,476 km (0.111 R)
• M7: 5,249,539 km (0.037 R)
• M8: 6,589,786 km (0.083 R)
• M9: 8,550,416 km (0.054 R)
• M10: 9,268,336 km (0.055 R)
• M11: 10,256,580 km (0.12 R)
• M12: 12,924,658 km (0.099 R)
• M13: 14,215,238 km (0.087 R)
• M14: 14,624,538 km (0.045 R)
• M15: 16,277,595 km (0.073 R)
• M16: 17,380,281 km (0.105 R)
• M17: 19,021,070 km (0.118 R)
• M18: 19,662,247 km (0.082 R)
• M19: 24,145,096 km (0.049 R)
• M20: 27,067,192 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 946.2

Radius: 3.1

Gravity: 98.46 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 7.22 AU - 11.06 AU

Year: 18427 Days

Day: 21.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 80,234,938 km

• M1: 40,691 km (0.045 R)
• M2: 151,243 km (0.056 R)
• M3: 331,509 km (0.05 R)
• M4: 432,487 km (0.071 R)
• M5: 680,072 km (0.081 R)
• M6: 964,308 km (0.075 R)
• M7: 1,106,127 km (0.12 R)
• M8: 1,321,996 km (0.113 R)
• M9: 1,634,656 km (0.116 R)
• M10: 1,743,114 km (0.094 R)
• M11: 2,014,784 km (0.103 R)
• M12: 2,427,674 km (0.104 R)
• M13: 3,190,623 km (0.071 R)
• M14: 3,906,300 km (0.063 R)
• M15: 4,439,018 km (0.104 R)
• M16: 6,151,464 km (0.114 R)
• M17: 7,010,755 km (0.063 R)
• M18: 7,895,626 km (0.071 R)
• M19: 8,311,807 km (0.054 R)
• M20: 8,742,350 km (0.045 R)
• M21: 9,301,397 km (0.085 R)
• M22: 10,428,318 km (0.117 R)
• M23: 13,381,230 km (0.095 R)
• M24: 17,797,659 km (0.09 R)
• M25: 19,996,149 km (0.106 R)
• M26: 27,310,737 km (0.069 R)
• M27: 27,901,050 km (0.117 R)
• M28: 28,020,130 km (0.034 R)
• M29: 28,985,036 km (0.046 R)
• M30: 33,871,351 km (0.082 R)
• M31: 34,689,951 km (0.119 R)
• M32: 39,578,510 km (0.112 R)
• M33: 43,772,786 km (0.1 R)
• M34: 56,956,547 km (0.079 R)
• M35: 63,716,276 km (0.084 R)
• M36: 64,337,257 km (0.107 R)
• M37: 65,171,415 km (0.116 R)
• M38: 67,288,225 km (0.093 R)
• M39: 70,328,053 km (0.118 R)
• M40: 70,991,221 km (0.104 R)
• M41: 78,800,080 km (0.087 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 442 - 16,370 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit