🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.4

Radius: 12.5

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.52 AU - 0.54 AU

Year: 262 Days

Day: 8.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 58,741,880 km

• M1: 156,180 km (0.073 R)
• M2: 635,342 km (0.06 R)
• M3: 1,128,417 km (0.064 R)
• M4: 1,798,466 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667

Radius: 13.2

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.45 AU - 0.65 AU

Year: 277 Days

Day: 5.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,741,880 km

• M1: 164,258 km (0.062 R)
• M2: 606,619 km (0.072 R)
• M3: 1,122,732 km (0.057 R)
• M4: 1,797,568 km (0.106 R)
• M5: 2,225,867 km (0.101 R)
• M6: 3,043,120 km (0.072 R)
• M7: 4,123,965 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.9

Radius: 12.7

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.52 AU - 0.76 AU

Year: 347 Days

Day: 11.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,741,880 km

• M1: 157,975 km (0.118 R)
• M2: 695,630 km (0.097 R)
• M3: 1,114,504 km (0.035 R)
• M4: 1,695,093 km (0.086 R)
• M5: 2,124,888 km (0.069 R)
• M6: 2,609,585 km (0.099 R)
• M7: 3,168,034 km (0.077 R)
• M8: 3,709,429 km (0.104 R)
• M9: 4,116,784 km (0.049 R)
• M10: 4,568,121 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.3

Radius: 12.3

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.52 AU - 0.84 AU

Year: 380 Days

Day: 13.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,741,880 km

• M1: 153,188 km (0.063 R)
• M2: 545,284 km (0.027 R)
• M3: 989,440 km (0.103 R)
• M4: 1,441,675 km (0.11 R)
• M5: 1,969,007 km (0.067 R)
• M6: 2,489,159 km (0.102 R)
• M7: 3,430,578 km (0.112 R)
• M8: 3,835,091 km (0.112 R)
• M9: 4,523,989 km (0.06 R)
• M10: 5,167,410 km (0.104 R)
• M11: 5,769,092 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.4

Radius: 10.9

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.6 AU - 0.88 AU

Year: 432 Days

Day: 8.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 58,741,880 km

• M1: 135,536 km (0.096 R)
• M2: 517,758 km (0.118 R)
• M3: 918,082 km (0.115 R)
• M4: 1,335,460 km (0.061 R)
• M5: 2,204,624 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.5

Radius: 12

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.88 AU - 0.88 AU

Year: 560 Days

Day: 8.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,741,880 km

• M1: 149,299 km (0.109 R)
• M2: 635,193 km (0.056 R)
• M3: 1,015,171 km (0.064 R)
• M4: 1,655,899 km (0.099 R)
• M5: 2,127,132 km (0.066 R)
• M6: 2,656,110 km (0.093 R)
• M7: 3,620,867 km (0.078 R)
• M8: 4,064,425 km (0.061 R)
• M9: 4,529,076 km (0.083 R)
• M10: 5,013,025 km (0.101 R)
• M11: 5,496,824 km (0.079 R)
• M12: 6,085,193 km (0.105 R)
• M13: 6,578,118 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 988.8

Radius: 6.3

Gravity: 24.91 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 5.52 AU - 7.52 AU

Year: 11292 Days

Day: 21.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 58,741,880 km

• M1: 78,389 km (0.06 R)
• M2: 356,492 km (0.098 R)
• M3: 591,211 km (0.106 R)
• M4: 820,395 km (0.047 R)
• M5: 1,085,781 km (0.106 R)
• M6: 1,538,913 km (0.074 R)
• M7: 2,303,658 km (0.098 R)
• M8: 2,615,120 km (0.075 R)
• M9: 3,452,270 km (0.077 R)
• M10: 4,613,598 km (0.099 R)
• M11: 6,445,125 km (0.087 R)
• M12: 7,588,651 km (0.025 R)
• M13: 7,860,171 km (0.039 R)
• M14: 8,861,579 km (0.082 R)
• M15: 9,264,447 km (0.061 R)
• M16: 10,052,977 km (0.05 R)
• M17: 15,170,122 km (0.03 R)
• M18: 16,867,310 km (0.116 R)
• M19: 17,097,690 km (0.119 R)
• M20: 19,686,930 km (0.116 R)
• M21: 26,239,018 km (0.099 R)
• M22: 27,069,436 km (0.075 R)
• M23: 30,001,554 km (0.12 R)
• M24: 34,231,284 km (0.101 R)
• M25: 35,851,429 km (0.11 R)
• M26: 41,017,492 km (0.074 R)
• M27: 46,207,342 km (0.117 R)
• M28: 46,961,016 km (0.03 R)
• M29: 54,618,631 km (0.078 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 348 - 12,949 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit