🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.2

Radius: 8.6

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.53 AU - 0.55 AU

Year: 274 Days

Day: 9.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,204,635 km

• M1: 107,112 km (0.06 R)
• M2: 409,150 km (0.075 R)
• M3: 690,544 km (0.074 R)
• M4: 1,020,108 km (0.083 R)
• M5: 1,562,550 km (0.098 R)
• M6: 2,083,300 km (0.118 R)
• M7: 2,456,098 km (0.1 R)
• M8: 2,822,613 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.5

Radius: 14.8

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.92 AU - 2.18 AU

Year: 2026 Days

Day: 12.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,204,635 km

• M1: 184,005 km (0.097 R)
• M2: 812,167 km (0.117 R)
• M3: 1,449,454 km (0.031 R)
• M4: 3,288,161 km (0.081 R)
• M5: 4,025,230 km (0.108 R)
• M6: 5,208,699 km (0.031 R)
• M7: 6,478,186 km (0.119 R)
• M8: 6,972,607 km (0.075 R)
• M9: 7,762,035 km (0.11 R)
• M10: 10,679,194 km (0.082 R)
• M11: 12,258,798 km (0.111 R)
• M12: 12,932,586 km (0.109 R)
• M13: 13,454,085 km (0.064 R)
• M14: 14,725,666 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.1

Radius: 11.1

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 2.97 AU - 4.23 AU

Year: 4715 Days

Day: 7 Hours

Environment

Temp: -210 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 74,204,635 km

• M1: 138,079 km (0.111 R)
• M2: 519,703 km (0.089 R)
• M3: 996,172 km (0.12 R)
• M4: 1,489,097 km (0.038 R)
• M5: 1,994,588 km (0.059 R)
• M6: 3,272,154 km (0.116 R)
• M7: 4,581,285 km (0.107 R)
• M8: 6,468,462 km (0.115 R)
• M9: 6,866,841 km (0.116 R)
• M10: 7,316,682 km (0.073 R)
• M11: 7,972,220 km (0.092 R)
• M12: 8,947,299 km (0.067 R)
• M13: 10,443,427 km (0.076 R)
• M14: 11,227,619 km (0.111 R)
• M15: 13,762,107 km (0.07 R)
• M16: 15,105,047 km (0.106 R)
• M17: 16,289,114 km (0.1 R)
• M18: 17,406,909 km (0.119 R)
• M19: 21,067,270 km (0.093 R)
• M20: 21,503,198 km (0.099 R)
• M21: 23,696,153 km (0.06 R)
• M22: 24,806,469 km (0.059 R)
• M23: 25,785,437 km (0.111 R)
• M24: 26,620,791 km (0.115 R)
• M25: 28,257,542 km (0.097 R)
• M26: 29,596,293 km (0.103 R)
• M27: 31,825,750 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.9

Radius: 13.1

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 4.46 AU - 5.36 AU

Year: 7510 Days

Day: 14.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 74,204,635 km

• M1: 163,062 km (0.099 R)
• M2: 665,262 km (0.072 R)
• M3: 1,131,259 km (0.081 R)
• M4: 2,034,531 km (0.088 R)
• M5: 2,820,219 km (0.12 R)
• M6: 3,284,421 km (0.112 R)
• M7: 4,234,817 km (0.12 R)
• M8: 4,674,634 km (0.038 R)
• M9: 7,549,008 km (0.113 R)
• M10: 7,992,117 km (0.106 R)
• M11: 9,611,813 km (0.081 R)
• M12: 10,376,258 km (0.087 R)
• M13: 11,388,437 km (0.1 R)
• M14: 12,299,638 km (0.086 R)
• M15: 14,025,548 km (0.106 R)
• M16: 14,573,525 km (0.096 R)
• M17: 15,842,415 km (0.119 R)
• M18: 19,560,670 km (0.103 R)
• M19: 20,091,742 km (0.096 R)
• M20: 20,632,389 km (0.111 R)
• M21: 22,477,529 km (0.064 R)
• M22: 23,738,789 km (0.12 R)
• M23: 25,135,434 km (0.116 R)
• M24: 27,051,035 km (0.03 R)
• M25: 29,753,969 km (0.103 R)
• M26: 30,558,207 km (0.071 R)
• M27: 31,068,187 km (0.086 R)
• M28: 31,687,671 km (0.09 R)
• M29: 35,579,011 km (0.084 R)
• M30: 38,107,814 km (0.097 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 479.8

Radius: 5.7

Gravity: 14.77 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 7.28 AU - 8.1 AU

Year: 14720 Days

Day: 22 Hours

Environment

Temp: -226 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 74,204,635 km

• M1: 72,405 km (0.104 R)
• M2: 256,560 km (0.115 R)
• M3: 442,361 km (0.117 R)
• M4: 625,319 km (0.111 R)
• M5: 1,071,719 km (0.096 R)
• M6: 2,047,845 km (0.12 R)
• M7: 3,698,359 km (0.119 R)
• M8: 3,918,118 km (0.059 R)
• M9: 6,865,345 km (0.077 R)
• M10: 7,806,166 km (0.114 R)
• M11: 8,976,321 km (0.094 R)
• M12: 11,197,849 km (0.078 R)
• M13: 12,253,262 km (0.083 R)
• M14: 12,992,575 km (0.097 R)
• M15: 13,631,059 km (0.109 R)
• M16: 14,223,466 km (0.071 R)
• M17: 17,140,774 km (0.097 R)
• M18: 18,459,180 km (0.098 R)
• M19: 23,652,770 km (0.098 R)
• M20: 26,077,153 km (0.12 R)
• M21: 30,514,375 km (0.079 R)
• M22: 31,868,834 km (0.118 R)
• M23: 41,254,306 km (0.066 R)
• M24: 43,188,756 km (0.055 R)
• M25: 50,590,858 km (0.119 R)
• M26: 50,903,368 km (0.104 R)
• M27: 54,262,738 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 180.5

Radius: 7.1

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 8.75 AU - 10.71 AU

Year: 20950 Days

Day: 17.4 Hours

Environment

Temp: -244 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,204,635 km

• M1: 89,011 km (0.096 R)
• M2: 326,423 km (0.1 R)
• M3: 826,977 km (0.109 R)
• M4: 1,338,751 km (0.05 R)
• M5: 2,632,324 km (0.084 R)
• M6: 3,136,918 km (0.025 R)
• M7: 5,369,666 km (0.116 R)
• M8: 5,712,544 km (0.068 R)
• M9: 7,314,588 km (0.118 R)
• M10: 10,298,916 km (0.087 R)
• M11: 13,817,757 km (0.041 R)
• M12: 14,202,074 km (0.117 R)
• M13: 23,922,644 km (0.092 R)
• M14: 24,570,104 km (0.049 R)
• M15: 34,315,208 km (0.104 R)
• M16: 40,748,366 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 491

Radius: 4.9

Gravity: 20.45 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.61 AU - 10.95 AU

Year: 22751 Days

Day: 16.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 74,204,635 km

• M1: 61,036 km (0.098 R)
• M2: 220,058 km (0.106 R)
• M3: 465,100 km (0.041 R)
• M4: 1,394,402 km (0.038 R)
• M5: 1,850,526 km (0.119 R)
• M6: 2,653,417 km (0.101 R)
• M7: 3,294,594 km (0.075 R)
• M8: 3,520,187 km (0.09 R)
• M9: 4,161,514 km (0.12 R)
• M10: 6,550,592 km (0.083 R)
• M11: 6,907,831 km (0.084 R)
• M12: 7,184,139 km (0.11 R)
• M13: 7,907,145 km (0.083 R)
• M14: 8,945,055 km (0.12 R)
• M15: 9,440,523 km (0.096 R)
• M16: 9,723,562 km (0.031 R)
• M17: 13,936,837 km (0.082 R)
• M18: 16,479,701 km (0.062 R)
• M19: 16,890,198 km (0.064 R)
• M20: 20,422,653 km (0.057 R)
• M21: 23,066,944 km (0.094 R)
• M22: 23,374,069 km (0.108 R)
• M23: 23,580,364 km (0.099 R)
• M24: 26,822,599 km (0.079 R)
• M25: 28,198,750 km (0.089 R)
• M26: 31,465,668 km (0.028 R)
• M27: 34,174,437 km (0.059 R)
• M28: 35,381,542 km (0.077 R)
• M29: 38,738,817 km (0.099 R)
• M30: 39,318,210 km (0.114 R)
• M31: 39,903,437 km (0.11 R)
• M32: 40,198,145 km (0.111 R)
• M33: 52,860,258 km (0.08 R)
• M34: 55,933,447 km (0.064 R)
• M35: 58,362,318 km (0.115 R)
• M36: 60,084,489 km (0.054 R)
• M37: 60,277,919 km (0.119 R)
• M38: 67,312,160 km (0.104 R)
• M39: 73,539,321 km (0.085 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 535 - 15,124 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit