🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.3

Radius: 9.4

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.51 AU - 0.71 AU

Year: 329 Days

Day: 14.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,347,710 km

• M1: 117,285 km (0.082 R)
• M2: 426,504 km (0.065 R)
• M3: 749,785 km (0.076 R)
• M4: 1,044,642 km (0.116 R)
• M5: 1,346,979 km (0.03 R)
• M6: 1,838,558 km (0.046 R)
• M7: 2,143,588 km (0.117 R)
• M8: 2,632,025 km (0.082 R)
• M9: 3,248,069 km (0.074 R)
• M10: 4,416,728 km (0.097 R)
• M11: 4,838,444 km (0.117 R)
• M12: 5,134,349 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.8

Radius: 11

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.72 AU - 1.06 AU

Year: 580 Days

Day: 12.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,347,710 km

• M1: 138,228 km (0.112 R)
• M2: 484,248 km (0.1 R)
• M3: 839,244 km (0.102 R)
• M4: 1,302,997 km (0.084 R)
• M5: 1,799,214 km (0.101 R)
• M6: 2,314,578 km (0.085 R)
• M7: 2,700,990 km (0.074 R)
• M8: 3,295,791 km (0.112 R)
• M9: 3,787,818 km (0.093 R)
• M10: 4,142,664 km (0.106 R)
• M11: 4,655,635 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.8

Radius: 9

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.9 AU - 1.04 AU

Year: 659 Days

Day: 6.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,347,710 km

• M1: 112,348 km (0.071 R)
• M2: 628,461 km (0.08 R)
• M3: 1,949,559 km (0.118 R)
• M4: 2,832,187 km (0.06 R)
• M5: 3,263,029 km (0.107 R)
• M6: 3,786,023 km (0.117 R)
• M7: 4,100,029 km (0.093 R)
• M8: 4,513,667 km (0.032 R)
• M9: 5,058,502 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.3

Radius: 11.6

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.17 AU - 1.35 AU

Year: 976 Days

Day: 6.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,347,710 km

• M1: 144,661 km (0.119 R)
• M2: 511,924 km (0.071 R)
• M3: 1,513,482 km (0.087 R)
• M4: 2,148,824 km (0.097 R)
• M5: 2,666,133 km (0.099 R)
• M6: 3,118,966 km (0.06 R)
• M7: 3,888,348 km (0.057 R)
• M8: 4,346,267 km (0.086 R)
• M9: 4,795,210 km (0.084 R)
• M10: 5,420,080 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.5

Radius: 10.2

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.81 AU - 2.61 AU

Year: 2268 Days

Day: 14 Hours

Environment

Temp: -207 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,347,710 km

• M1: 128,355 km (0.11 R)
• M2: 485,595 km (0.102 R)
• M3: 886,517 km (0.076 R)
• M4: 1,265,897 km (0.058 R)
• M5: 1,655,749 km (0.083 R)
• M6: 2,463,428 km (0.114 R)
• M7: 2,790,449 km (0.104 R)
• M8: 3,180,451 km (0.058 R)
• M9: 3,533,203 km (0.084 R)
• M10: 4,297,049 km (0.104 R)
• M11: 5,682,326 km (0.114 R)
• M12: 6,873,125 km (0.087 R)
• M13: 8,822,983 km (0.118 R)
• M14: 10,073,771 km (0.034 R)
• M15: 10,761,323 km (0.086 R)
• M16: 11,196,653 km (0.115 R)
• M17: 11,976,357 km (0.069 R)
• M18: 13,235,522 km (0.043 R)
• M19: 13,597,998 km (0.105 R)
• M20: 18,145,623 km (0.11 R)
• M21: 19,220,783 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.8

Radius: 9.1

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.42 AU - 3.66 AU

Year: 4597 Days

Day: 7.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,347,710 km

• M1: 113,994 km (0.081 R)
• M2: 444,156 km (0.096 R)
• M3: 1,309,131 km (0.11 R)
• M4: 1,884,185 km (0.062 R)
• M5: 2,976,100 km (0.106 R)
• M6: 3,291,901 km (0.115 R)
• M7: 3,688,784 km (0.101 R)
• M8: 4,160,018 km (0.095 R)
• M9: 4,624,818 km (0.086 R)
• M10: 5,298,158 km (0.061 R)
• M11: 6,400,096 km (0.036 R)
• M12: 6,989,961 km (0.106 R)
• M13: 7,712,668 km (0.111 R)
• M14: 8,415,329 km (0.066 R)
• M15: 10,220,377 km (0.066 R)
• M16: 11,276,239 km (0.093 R)
• M17: 11,874,181 km (0.066 R)
• M18: 12,358,729 km (0.066 R)
• M19: 15,236,992 km (0.077 R)
• M20: 16,288,067 km (0.083 R)
• M21: 18,651,563 km (0.074 R)
• M22: 19,548,403 km (0.074 R)
• M23: 20,348,751 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 842.2

Radius: 5.5

Gravity: 27.84 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 7.81 AU - 11.59 AU

Year: 20853 Days

Day: 20.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 76,347,710 km

• M1: 68,965 km (0.041 R)
• M2: 269,875 km (0.086 R)
• M3: 1,926,521 km (0.116 R)
• M4: 2,153,461 km (0.12 R)
• M5: 2,587,445 km (0.114 R)
• M6: 2,890,530 km (0.07 R)
• M7: 3,273,650 km (0.075 R)
• M8: 3,975,713 km (0.105 R)
• M9: 4,627,511 km (0.11 R)
• M10: 4,922,368 km (0.119 R)
• M11: 6,272,938 km (0.069 R)
• M12: 10,225,762 km (0.115 R)
• M13: 13,850,220 km (0.069 R)
• M14: 19,453,707 km (0.069 R)
• M15: 20,711,227 km (0.11 R)
• M16: 21,008,927 km (0.115 R)
• M17: 21,714,729 km (0.094 R)
• M18: 23,280,271 km (0.042 R)
• M19: 24,035,890 km (0.068 R)
• M20: 24,474,960 km (0.102 R)
• M21: 40,116,913 km (0.095 R)
• M22: 41,045,916 km (0.12 R)
• M23: 41,515,653 km (0.081 R)
• M24: 53,335,830 km (0.115 R)
• M25: 55,596,852 km (0.108 R)
• M26: 64,433,897 km (0.029 R)
• M27: 65,280,771 km (0.051 R)
• M28: 66,780,639 km (0.09 R)
• M29: 72,324,886 km (0.045 R)
• M30: 73,930,520 km (0.204 R)
• M31: 77,689,615 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.4

Radius: 3.8

Gravity: 41.72 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 8.17 AU - 11.59 AU

Year: 21436 Days

Day: 23.8 Hours

Environment

Temp: -243 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 76,347,710 km

• M1: 49,966 km (0.101 R)
• M2: 185,801 km (0.048 R)
• M3: 396,285 km (0.048 R)
• M4: 939,774 km (0.079 R)
• M5: 1,516,025 km (0.1 R)
• M6: 2,148,824 km (0.115 R)
• M7: 2,618,412 km (0.109 R)
• M8: 2,915,812 km (0.085 R)
• M9: 3,518,841 km (0.041 R)
• M10: 4,367,659 km (0.119 R)
• M11: 5,945,917 km (0.04 R)
• M12: 6,953,907 km (0.117 R)
• M13: 8,591,406 km (0.119 R)
• M14: 8,860,083 km (0.107 R)
• M15: 11,535,791 km (0.114 R)
• M16: 13,375,246 km (0.119 R)
• M17: 14,401,787 km (0.114 R)
• M18: 18,586,039 km (0.083 R)
• M19: 20,712,424 km (0.109 R)
• M20: 22,688,761 km (0.118 R)
• M21: 24,038,583 km (0.087 R)
• M22: 25,112,695 km (0.091 R)
• M23: 27,011,392 km (0.057 R)
• M24: 30,343,535 km (0.108 R)
• M25: 35,839,611 km (0.052 R)
• M26: 46,083,175 km (0.061 R)
• M27: 47,236,874 km (0.107 R)
• M28: 60,631,568 km (0.109 R)
• M29: 66,712,722 km (0.045 R)
• M30: 68,187,906 km (0.088 R)
• M31: 69,469,511 km (0.116 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 507 - 17,957 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit