🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.6

Radius: 12.4

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.51 AU - 0.59 AU

Year: 272 Days

Day: 10.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,667,087 km

• M1: 154,235 km (0.106 R)
• M2: 607,367 km (0.118 R)
• M3: 1,033,721 km (0.108 R)
• M4: 1,436,439 km (0.088 R)
• M5: 1,863,690 km (0.073 R)
• M6: 2,344,199 km (0.105 R)
• M7: 2,916,710 km (0.104 R)
• M8: 3,349,048 km (0.077 R)
• M9: 3,847,059 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.9

Radius: 14

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.5 AU - 0.74 AU

Year: 326 Days

Day: 13.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,667,087 km

• M1: 174,132 km (0.114 R)
• M2: 746,344 km (0.097 R)
• M3: 1,556,566 km (0.096 R)
• M4: 3,030,404 km (0.113 R)
• M5: 3,548,611 km (0.079 R)
• M6: 3,993,665 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.8

Radius: 11.2

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.63 AU - 1.01 AU

Year: 495 Days

Day: 6.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,667,087 km

• M1: 139,874 km (0.097 R)
• M2: 571,314 km (0.07 R)
• M3: 969,245 km (0.118 R)
• M4: 1,590,824 km (0.041 R)
• M5: 2,164,831 km (0.09 R)
• M6: 2,605,247 km (0.087 R)
• M7: 3,259,588 km (0.087 R)
• M8: 4,151,491 km (0.091 R)
• M9: 4,866,269 km (0.111 R)
• M10: 5,214,683 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.3

Radius: 12.8

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.22 AU - 1.38 AU

Year: 988 Days

Day: 6.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,667,087 km

• M1: 159,172 km (0.097 R)
• M2: 670,049 km (0.045 R)
• M3: 1,270,684 km (0.091 R)
• M4: 1,819,409 km (0.078 R)
• M5: 2,264,613 km (0.079 R)
• M6: 2,826,053 km (0.108 R)
• M7: 3,710,177 km (0.056 R)
• M8: 4,662,367 km (0.064 R)
• M9: 5,389,114 km (0.11 R)
• M10: 6,512,893 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.2

Radius: 10

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.26 AU - 1.6 AU

Year: 1140 Days

Day: 13.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,667,087 km

• M1: 126,410 km (0.116 R)
• M2: 536,608 km (0.12 R)
• M3: 1,910,365 km (0.074 R)
• M4: 2,610,782 km (0.104 R)
• M5: 3,134,674 km (0.102 R)
• M6: 4,138,475 km (0.104 R)
• M7: 5,274,073 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.1

Radius: 12.1

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 3.62 AU - 5.3 AU

Year: 6281 Days

Day: 12.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,667,087 km

• M1: 153,338 km (0.073 R)
• M2: 847,173 km (0.086 R)
• M3: 1,248,394 km (0.054 R)
• M4: 1,704,369 km (0.089 R)
• M5: 2,405,235 km (0.049 R)
• M6: 2,869,437 km (0.117 R)
• M7: 4,078,038 km (0.109 R)
• M8: 4,464,449 km (0.091 R)
• M9: 6,531,593 km (0.117 R)
• M10: 12,795,106 km (0.112 R)
• M11: 17,069,117 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.6

Radius: 12.3

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 4.05 AU - 5.39 AU

Year: 6838 Days

Day: 8.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,667,087 km

• M1: 155,133 km (0.114 R)
• M2: 622,028 km (0.08 R)
• M3: 1,132,157 km (0.089 R)
• M4: 2,065,498 km (0.12 R)
• M5: 2,565,753 km (0.09 R)
• M6: 3,086,354 km (0.119 R)
• M7: 4,217,762 km (0.054 R)
• M8: 4,919,975 km (0.099 R)
• M9: 6,966,324 km (0.102 R)
• M10: 10,924,983 km (0.093 R)
• M11: 11,747,173 km (0.106 R)
• M12: 12,454,771 km (0.114 R)
• M13: 13,190,493 km (0.089 R)
• M14: 15,098,315 km (0.09 R)
• M15: 18,095,957 km (0.091 R)
• M16: 20,159,211 km (0.092 R)
• M17: 21,768,585 km (0.071 R)
• M18: 26,080,145 km (0.095 R)
• M19: 27,372,072 km (0.06 R)
• M20: 28,978,005 km (0.049 R)
• M21: 31,792,839 km (0.059 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 11,787 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit