🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507

Radius: 11.3

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.76 AU - 1.24 AU

Year: 646 Days

Day: 12.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,795,101 km

• M1: 140,622 km (0.107 R)
• M2: 639,980 km (0.118 R)
• M3: 1,211,294 km (0.104 R)
• M4: 1,595,461 km (0.109 R)
• M5: 2,009,698 km (0.053 R)
• M6: 2,485,868 km (0.045 R)
• M7: 3,286,516 km (0.07 R)
• M8: 3,993,964 km (0.05 R)
• M9: 4,674,335 km (0.08 R)
• M10: 5,125,223 km (0.102 R)
• M11: 5,640,588 km (0.106 R)
• M12: 6,400,545 km (0.098 R)
• M13: 6,815,529 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.6

Radius: 8.5

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.22 AU - 1.28 AU

Year: 902 Days

Day: 12.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,795,101 km

• M1: 106,065 km (0.101 R)
• M2: 412,292 km (0.045 R)
• M3: 681,269 km (0.096 R)
• M4: 1,051,075 km (0.101 R)
• M5: 1,328,130 km (0.103 R)
• M6: 2,285,706 km (0.11 R)
• M7: 2,690,966 km (0.093 R)
• M8: 3,143,350 km (0.113 R)
• M9: 3,454,664 km (0.097 R)
• M10: 3,829,556 km (0.115 R)
• M11: 4,109,454 km (0.115 R)
• M12: 4,498,707 km (0.097 R)
• M13: 5,015,269 km (0.108 R)
• M14: 5,720,772 km (0.085 R)
• M15: 6,147,126 km (0.086 R)
• M16: 6,449,763 km (0.09 R)
• M17: 7,761,586 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.6

Radius: 11.5

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.94 AU - 2.16 AU

Year: 1895 Days

Day: 7.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,795,101 km

• M1: 143,016 km (0.092 R)
• M2: 581,038 km (0.1 R)
• M3: 1,062,444 km (0.096 R)
• M4: 1,439,431 km (0.095 R)
• M5: 2,010,745 km (0.056 R)
• M6: 2,396,558 km (0.115 R)
• M7: 3,140,807 km (0.116 R)
• M8: 3,524,227 km (0.109 R)
• M9: 4,033,308 km (0.068 R)
• M10: 5,199,723 km (0.085 R)
• M11: 5,691,152 km (0.057 R)
• M12: 6,958,994 km (0.089 R)
• M13: 8,725,296 km (0.071 R)
• M14: 9,118,289 km (0.029 R)
• M15: 9,799,708 km (0.038 R)
• M16: 10,922,739 km (0.116 R)
• M17: 13,683,717 km (0.075 R)
• M18: 14,486,160 km (0.103 R)
• M19: 14,852,825 km (0.062 R)
• M20: 16,136,075 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.3

Radius: 13.8

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.11 AU - 2.25 AU

Year: 2078 Days

Day: 8.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,795,101 km

• M1: 171,888 km (0.072 R)
• M2: 830,268 km (0.115 R)
• M3: 2,307,996 km (0.102 R)
• M4: 2,957,251 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.8

Radius: 14.4

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.93 AU - 3.71 AU

Year: 3906 Days

Day: 6.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,795,101 km

• M1: 179,966 km (0.026 R)
• M2: 683,812 km (0.101 R)
• M3: 1,200,972 km (0.08 R)
• M4: 3,008,563 km (0.105 R)
• M5: 5,898,494 km (0.115 R)
• M6: 6,779,327 km (0.098 R)
• M7: 7,538,835 km (0.104 R)
• M8: 8,994,871 km (0.114 R)
• M9: 10,761,472 km (0.059 R)
• M10: 12,410,191 km (0.12 R)
• M11: 17,685,460 km (0.103 R)
• M12: 22,814,872 km (0.084 R)
• M13: 23,546,555 km (0.078 R)
• M14: 25,836,001 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.8

Radius: 8.9

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 4.14 AU - 4.62 AU

Year: 5919 Days

Day: 5.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 40,795,101 km

• M1: 110,702 km (0.095 R)
• M2: 416,331 km (0.116 R)
• M3: 724,652 km (0.069 R)
• M4: 1,010,833 km (0.081 R)
• M5: 1,446,761 km (0.111 R)
• M6: 2,099,157 km (0.043 R)
• M7: 2,386,236 km (0.108 R)
• M8: 2,716,099 km (0.104 R)
• M9: 3,429,681 km (0.089 R)
• M10: 3,768,670 km (0.107 R)
• M11: 4,086,266 km (0.064 R)
• M12: 5,173,842 km (0.093 R)
• M13: 6,151,464 km (0.085 R)
• M14: 7,409,134 km (0.105 R)
• M15: 7,706,834 km (0.103 R)
• M16: 9,354,953 km (0.06 R)
• M17: 9,664,022 km (0.077 R)
• M18: 9,979,824 km (0.052 R)
• M19: 11,182,740 km (0.049 R)
• M20: 12,666,153 km (0.086 R)
• M21: 12,997,063 km (0.076 R)
• M22: 13,285,189 km (0.052 R)
• M23: 15,104,598 km (0.083 R)
• M24: 16,856,090 km (0.11 R)
• M25: 17,430,246 km (0.097 R)
• M26: 19,984,630 km (0.116 R)
• M27: 20,627,751 km (0.08 R)
• M28: 21,484,349 km (0.103 R)
• M29: 23,836,775 km (0.108 R)
• M30: 24,268,963 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665

Radius: 12.6

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.64 AU - 5.5 AU

Year: 6308 Days

Day: 6.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,795,101 km

• M1: 158,125 km (0.079 R)
• M2: 760,556 km (0.097 R)
• M3: 1,451,548 km (0.055 R)
• M4: 3,344,709 km (0.096 R)
• M5: 4,931,195 km (0.07 R)
• M6: 6,798,026 km (0.098 R)
• M7: 9,481,962 km (0.119 R)
• M8: 9,877,798 km (0.112 R)
• M9: 11,132,176 km (0.075 R)
• M10: 11,672,673 km (0.091 R)
• M11: 15,593,484 km (0.034 R)
• M12: 17,486,794 km (0.104 R)
• M13: 25,915,737 km (0.105 R)
• M14: 26,518,018 km (0.114 R)
• M15: 27,217,837 km (0.105 R)
• M16: 27,750,854 km (0.095 R)
• M17: 28,654,425 km (0.097 R)
• M18: 32,070,792 km (0.03 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.4

Radius: 15

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.97 AU - 5.43 AU

Year: 7656 Days

Day: 10.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,795,101 km

• M1: 186,549 km (0.067 R)
• M2: 733,927 km (0.032 R)
• M3: 1,768,546 km (0.106 R)
• M4: 3,068,103 km (0.07 R)
• M5: 4,113,493 km (0.11 R)
• M6: 5,052,369 km (0.085 R)
• M7: 6,232,247 km (0.096 R)
• M8: 6,906,036 km (0.114 R)
• M9: 8,484,294 km (0.075 R)
• M10: 9,179,176 km (0.096 R)
• M11: 10,340,654 km (0.097 R)
• M12: 12,182,652 km (0.083 R)
• M13: 12,786,878 km (0.083 R)
• M14: 13,701,519 km (0.083 R)
• M15: 16,114,234 km (0.092 R)
• M16: 16,910,394 km (0.104 R)
• M17: 19,162,440 km (0.093 R)
• M18: 20,360,569 km (0.056 R)
• M19: 24,083,911 km (0.06 R)
• M20: 25,125,262 km (0.114 R)
• M21: 26,287,039 km (0.102 R)
• M22: 27,765,963 km (0.092 R)
• M23: 28,334,585 km (0.066 R)
• M24: 30,888,968 km (0.086 R)
• M25: 32,955,813 km (0.054 R)
• M26: 34,023,193 km (0.115 R)
• M27: 35,890,324 km (0.055 R)
• M28: 38,524,144 km (0.083 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 515 - 17,292 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit