🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.54 AU - 0.6 AU

Year: 156 Days

Day: 26.5 Hours

Environment

Temp: 202 °C

Axial Tilt: 23.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.56 AU - 0.64 AU

Year: 168 Days

Day: 29.3 Hours

Environment

Temp: 242 °C

Axial Tilt: 14.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,725,848 km

• M1: 153,936 km (0.111 R)

Asteroid Belt

Center: 2.95 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.2

Radius: 14.3

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.37 AU - 6.21 AU

Year: 4400 Days

Day: 10.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,725,848 km

• M1: 182,659 km (0.059 R)
• M2: 947,403 km (0.057 R)
• M3: 1,396,646 km (0.077 R)
• M4: 2,458,342 km (0.104 R)
• M5: 3,120,462 km (0.062 R)
• M6: 3,633,134 km (0.075 R)
• M7: 4,614,047 km (0.112 R)
• M8: 5,467,353 km (0.08 R)
• M9: 6,217,886 km (0.117 R)
• M10: 8,415,628 km (0.078 R)
• M11: 9,612,112 km (0.073 R)
• M12: 10,707,468 km (0.085 R)
• M13: 11,263,672 km (0.077 R)
• M14: 12,065,966 km (0.109 R)
• M15: 16,547,768 km (0.087 R)
• M16: 17,702,963 km (0.059 R)
• M17: 18,300,308 km (0.058 R)
• M18: 19,346,745 km (0.114 R)
• M19: 19,852,834 km (0.055 R)
• M20: 21,694,234 km (0.076 R)
• M21: 23,077,566 km (0.033 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.4

Radius: 12.4

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 6.22 AU - 8.44 AU

Year: 7177 Days

Day: 6.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,725,848 km

• M1: 154,684 km (0.087 R)
• M2: 642,672 km (0.111 R)
• M3: 1,390,811 km (0.09 R)
• M4: 1,788,443 km (0.098 R)
• M5: 2,297,973 km (0.067 R)
• M6: 2,723,130 km (0.083 R)
• M7: 3,542,627 km (0.087 R)
• M8: 3,959,556 km (0.069 R)
• M9: 4,492,274 km (0.049 R)
• M10: 7,233,955 km (0.054 R)
• M11: 9,950,652 km (0.084 R)
• M12: 10,837,767 km (0.055 R)
• M13: 13,757,319 km (0.075 R)
• M14: 17,234,572 km (0.037 R)
• M15: 17,724,505 km (0.108 R)
• M16: 19,702,189 km (0.047 R)
• M17: 21,179,468 km (0.054 R)
• M18: 21,580,091 km (0.11 R)
• M19: 22,231,740 km (0.119 R)
• M20: 24,091,839 km (0.119 R)
• M21: 25,689,096 km (0.082 R)
• M22: 26,606,430 km (0.085 R)
• M23: 31,732,252 km (0.069 R)
• M24: 33,002,337 km (0.105 R)
• M25: 42,349,212 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.2

Radius: 13

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 8.07 AU - 12.77 AU

Year: 12164 Days

Day: 9.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,725,848 km

• M1: 163,660 km (0.059 R)
• M2: 637,586 km (0.063 R)
• M3: 1,158,486 km (0.052 R)
• M4: 1,752,389 km (0.105 R)
• M5: 2,712,658 km (0.119 R)
• M6: 3,311,498 km (0.091 R)
• M7: 7,382,206 km (0.091 R)
• M8: 9,746,152 km (0.107 R)
• M9: 10,435,648 km (0.115 R)
• M10: 11,971,570 km (0.066 R)
• M11: 15,772,702 km (0.12 R)
• M12: 17,099,635 km (0.052 R)
• M13: 22,061,647 km (0.064 R)
• M14: 22,972,847 km (0.088 R)
• M15: 24,194,613 km (0.062 R)
• M16: 26,057,556 km (0.113 R)
• M17: 30,400,531 km (0.1 R)
• M18: 35,326,939 km (0.068 R)
• M19: 35,946,723 km (0.108 R)
• M20: 41,033,200 km (0.101 R)
• M21: 41,443,248 km (0.055 R)
• M22: 48,993,452 km (0.066 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 224.6

Radius: 5

Gravity: 8.98 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 12.41 AU - 17.87 AU

Year: 21305 Days

Day: 23 Hours

Environment

Temp: -189 °C

Axial Tilt: 88.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 54,725,848 km

• M1: 62,233 km (0.115 R)
• M2: 298,897 km (0.056 R)
• M3: 467,493 km (0.091 R)
• M4: 668,403 km (0.113 R)
• M5: 856,298 km (0.109 R)
• M6: 1,288,038 km (0.082 R)
• M7: 1,674,898 km (0.114 R)
• M8: 1,836,613 km (0.094 R)
• M9: 2,306,799 km (0.109 R)
• M10: 2,466,719 km (0.12 R)
• M11: 3,586,908 km (0.077 R)
• M12: 4,258,453 km (0.093 R)
• M13: 5,487,699 km (0.102 R)
• M14: 5,957,735 km (0.112 R)
• M15: 7,018,833 km (0.084 R)
• M16: 7,748,272 km (0.1 R)
• M17: 8,339,333 km (0.101 R)
• M18: 11,751,810 km (0.09 R)
• M19: 20,979,605 km (0.118 R)
• M20: 21,240,055 km (0.088 R)
• M21: 25,408,899 km (0.104 R)
• M22: 26,911,311 km (0.062 R)
• M23: 27,321,658 km (0.085 R)
• M24: 28,050,050 km (0.11 R)
• M25: 29,763,095 km (0.111 R)
• M26: 32,230,712 km (0.109 R)
• M27: 36,934,218 km (0.105 R)
• M28: 38,468,644 km (0.078 R)
• M29: 43,466,409 km (0.103 R)
• M30: 45,901,115 km (0.116 R)
• M31: 54,072,450 km (0.06 R)

Kuiper Belt

Range: 30.3 - 46.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 494 - 13,836 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit