🌌 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: 411.4

Radius: 12.4

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.45 AU - 0.63 AU

Year: 274 Days

Day: 7.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,454,285 km

• M1: 154,684 km (0.058 R)
• M2: 576,101 km (0.078 R)
• M3: 1,055,563 km (0.119 R)
• M4: 1,669,363 km (0.084 R)
• M5: 2,385,637 km (0.052 R)
• M6: 2,789,701 km (0.118 R)
• M7: 3,278,737 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.8

Radius: 10.4

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.62 AU - 0.64 AU

Year: 345 Days

Day: 8.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 74,454,285 km

• M1: 129,402 km (0.066 R)
• M2: 564,582 km (0.106 R)
• M3: 1,331,271 km (0.1 R)
• M4: 1,733,690 km (0.079 R)
• M5: 2,075,072 km (0.068 R)
• M6: 2,781,324 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946

Radius: 8.4

Gravity: 13.41 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.53 AU - 0.77 AU

Year: 362 Days

Day: 12 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,454,285 km

• M1: 104,569 km (0.119 R)
• M2: 401,969 km (0.084 R)
• M3: 856,149 km (0.079 R)
• M4: 1,405,921 km (0.083 R)
• M5: 1,790,687 km (0.087 R)
• M6: 2,130,722 km (0.108 R)
• M7: 2,711,910 km (0.112 R)
• M8: 3,359,370 km (0.091 R)
• M9: 4,052,008 km (0.078 R)
• M10: 4,657,281 km (0.119 R)
• M11: 5,051,621 km (0.048 R)
• M12: 5,321,495 km (0.116 R)
• M13: 5,769,840 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.1

Radius: 12.8

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.8 AU - 0.92 AU

Year: 551 Days

Day: 12.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,454,285 km

• M1: 163,361 km (0.109 R)
• M2: 578,645 km (0.041 R)
• M3: 1,045,689 km (0.087 R)
• M4: 1,461,272 km (0.106 R)
• M5: 1,866,233 km (0.116 R)
• M6: 2,707,422 km (0.12 R)
• M7: 3,840,925 km (0.065 R)
• M8: 4,989,987 km (0.026 R)
• M9: 5,575,064 km (0.117 R)
• M10: 6,261,868 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.1

Radius: 13.1

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.08 AU - 3.36 AU

Year: 3988 Days

Day: 12.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,454,285 km

• M1: 165,605 km (0.062 R)
• M2: 711,787 km (0.105 R)
• M3: 1,191,098 km (0.115 R)
• M4: 1,826,740 km (0.063 R)
• M5: 2,275,832 km (0.112 R)
• M6: 3,663,652 km (0.083 R)
• M7: 4,226,888 km (0.097 R)
• M8: 5,500,714 km (0.109 R)
• M9: 7,958,906 km (0.101 R)
• M10: 9,931,354 km (0.12 R)
• M11: 10,556,374 km (0.11 R)
• M12: 12,638,627 km (0.089 R)
• M13: 13,573,912 km (0.089 R)
• M14: 15,416,958 km (0.037 R)
• M15: 16,542,233 km (0.036 R)
• M16: 18,956,294 km (0.118 R)
• M17: 23,952,265 km (0.097 R)
• M18: 24,774,155 km (0.089 R)
• M19: 25,692,238 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.6

Radius: 12.2

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.07 AU - 4.21 AU

Year: 4794 Days

Day: 9.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,454,285 km

• M1: 151,692 km (0.03 R)
• M2: 620,382 km (0.036 R)
• M3: 1,339,051 km (0.083 R)
• M4: 2,162,587 km (0.113 R)
• M5: 2,978,344 km (0.044 R)
• M6: 3,539,635 km (0.107 R)
• M7: 7,543,024 km (0.077 R)
• M8: 10,664,683 km (0.095 R)
• M9: 11,424,939 km (0.106 R)
• M10: 11,888,842 km (0.116 R)
• M11: 13,612,209 km (0.043 R)
• M12: 15,161,894 km (0.109 R)
• M13: 15,665,889 km (0.084 R)
• M14: 17,004,940 km (0.069 R)
• M15: 17,733,182 km (0.094 R)
• M16: 21,479,861 km (0.097 R)
• M17: 23,204,425 km (0.093 R)
• M18: 27,254,787 km (0.068 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.9

Radius: 12.9

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.88 AU - 4.72 AU

Year: 5113 Days

Day: 12.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,454,285 km

• M1: 160,369 km (0.067 R)
• M2: 565,181 km (0.043 R)
• M3: 1,079,947 km (0.054 R)
• M4: 1,549,984 km (0.09 R)
• M5: 2,068,041 km (0.081 R)
• M6: 2,561,564 km (0.05 R)
• M7: 3,233,408 km (0.096 R)
• M8: 4,043,630 km (0.116 R)
• M9: 4,561,389 km (0.07 R)
• M10: 5,207,053 km (0.118 R)
• M11: 5,641,037 km (0.078 R)
• M12: 6,257,529 km (0.08 R)
• M13: 8,537,102 km (0.055 R)
• M14: 9,864,035 km (0.114 R)
• M15: 11,371,981 km (0.082 R)
• M16: 12,256,703 km (0.08 R)
• M17: 13,832,717 km (0.086 R)
• M18: 14,499,474 km (0.076 R)
• M19: 15,187,625 km (0.103 R)
• M20: 16,753,466 km (0.064 R)
• M21: 22,396,746 km (0.108 R)
• M22: 24,023,174 km (0.104 R)
• M23: 26,228,247 km (0.104 R)
• M24: 28,298,980 km (0.057 R)
• M25: 30,476,527 km (0.046 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.5

Radius: 9.8

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 3.74 AU - 5.82 AU

Year: 7214 Days

Day: 10.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,454,285 km

• M1: 125,363 km (0.116 R)
• M2: 547,528 km (0.102 R)
• M3: 929,152 km (0.116 R)
• M4: 2,150,021 km (0.044 R)
• M5: 3,285,020 km (0.029 R)
• M6: 4,948,099 km (0.087 R)
• M7: 6,409,222 km (0.105 R)
• M8: 7,443,242 km (0.088 R)
• M9: 12,283,182 km (0.091 R)
• M10: 13,701,968 km (0.095 R)
• M11: 15,226,819 km (0.06 R)
• M12: 17,789,132 km (0.113 R)
• M13: 21,995,973 km (0.083 R)
• M14: 34,470,491 km (0.095 R)
• M15: 35,211,150 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 40

Radius: 7.9

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 6.41 AU - 10.45 AU

Year: 16895 Days

Day: 15 Hours

Environment

Temp: -229 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,454,285 km

• M1: 100,380 km (0.046 R)
• M2: 352,153 km (0.095 R)
• M3: 786,735 km (0.092 R)
• M4: 1,086,230 km (0.083 R)
• M5: 1,344,885 km (0.062 R)
• M6: 1,870,123 km (0.112 R)
• M7: 2,231,851 km (0.067 R)
• M8: 3,442,845 km (0.1 R)
• M9: 4,914,140 km (0.117 R)
• M10: 7,896,823 km (0.11 R)
• M11: 11,052,889 km (0.102 R)
• M12: 15,619,364 km (0.101 R)
• M13: 17,463,906 km (0.106 R)
• M14: 21,511,276 km (0.094 R)
• M15: 24,158,261 km (0.036 R)
• M16: 24,456,858 km (0.037 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 798.8

Radius: 7.2

Gravity: 15.41 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 7.86 AU - 9.68 AU

Year: 17927 Days

Day: 23.4 Hours

Environment

Temp: -242 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,454,285 km

• M1: 89,609 km (0.068 R)
• M2: 330,611 km (0.077 R)
• M3: 1,602,642 km (0.112 R)
• M4: 2,369,929 km (0.104 R)
• M5: 3,223,535 km (0.106 R)
• M6: 3,617,277 km (0.073 R)
• M7: 4,042,583 km (0.113 R)
• M8: 5,798,264 km (0.042 R)
• M9: 6,295,527 km (0.093 R)
• M10: 7,140,755 km (0.101 R)
• M11: 8,365,214 km (0.088 R)
• M12: 9,054,561 km (0.112 R)
• M13: 9,666,865 km (0.086 R)
• M14: 10,188,064 km (0.031 R)
• M15: 11,160,749 km (0.098 R)
• M16: 13,289,676 km (0.117 R)
• M17: 17,898,637 km (0.06 R)
• M18: 18,419,836 km (0.049 R)
• M19: 21,372,001 km (0.033 R)
• M20: 23,472,205 km (0.028 R)
• M21: 24,096,627 km (0.07 R)
• M22: 27,615,318 km (0.11 R)
• M23: 30,591,867 km (0.086 R)
• M24: 34,839,399 km (0.119 R)
• M25: 35,788,299 km (0.049 R)
• M26: 36,754,252 km (0.103 R)
• M27: 41,998,555 km (0.113 R)
• M28: 44,165,779 km (0.029 R)
• M29: 45,117,072 km (0.038 R)
• M30: 54,301,484 km (0.094 R)
• M31: 58,374,884 km (0.102 R)
• M32: 59,328,272 km (0.115 R)
• M33: 60,486,009 km (0.093 R)
• M34: 64,860,102 km (0.119 R)
• M35: 65,882,753 km (0.095 R)
• M36: 69,440,190 km (0.061 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: 321 - 14,854 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit