🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933

Radius: 10.6

Gravity: 8.3 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.78 AU - 0.8 AU

Year: 446 Days

Day: 13.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,492,451 km

• M1: 132,095 km (0.101 R)
• M2: 663,915 km (0.105 R)
• M3: 2,007,753 km (0.119 R)
• M4: 2,853,131 km (0.087 R)
• M5: 3,706,437 km (0.037 R)
• M6: 4,185,898 km (0.063 R)
• M7: 5,071,368 km (0.114 R)
• M8: 5,593,614 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.1

Radius: 12.2

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.83 AU - 0.83 AU

Year: 481 Days

Day: 14.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 39,492,451 km

• M1: 176,376 km (0.114 R)
• M2: 559,197 km (0.072 R)
• M3: 1,594,564 km (0.097 R)
• M4: 2,838,171 km (0.096 R)
• M5: 3,401,407 km (0.056 R)
• M6: 4,322,182 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.5

Radius: 11

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.9 AU - 0.94 AU

Year: 561 Days

Day: 11.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,492,451 km

• M1: 136,732 km (0.109 R)
• M2: 486,193 km (0.054 R)
• M3: 854,503 km (0.092 R)
• M4: 1,325,736 km (0.116 R)
• M5: 1,735,784 km (0.089 R)
• M6: 2,376,063 km (0.086 R)
• M7: 2,818,573 km (0.12 R)
• M8: 3,167,885 km (0.12 R)
• M9: 3,546,367 km (0.106 R)
• M10: 3,983,492 km (0.098 R)
• M11: 4,410,444 km (0.105 R)
• M12: 5,133,900 km (0.075 R)
• M13: 5,640,737 km (0.111 R)
• M14: 6,374,964 km (0.094 R)
• M15: 6,961,387 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.8

Radius: 10.1

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.63 AU - 1.69 AU

Year: 1360 Days

Day: 10.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,492,451 km

• M1: 126,410 km (0.052 R)
• M2: 530,624 km (0.089 R)
• M3: 870,959 km (0.072 R)
• M4: 1,480,271 km (0.104 R)
• M5: 2,562,911 km (0.071 R)
• M6: 3,817,438 km (0.085 R)
• M7: 4,430,640 km (0.083 R)
• M8: 5,089,020 km (0.098 R)
• M9: 8,663,961 km (0.03 R)
• M10: 10,206,614 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.5

Radius: 8.6

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.95 AU - 3.15 AU

Year: 2589 Days

Day: 13.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 141.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,492,451 km

• M1: 107,710 km (0.071 R)
• M2: 512,223 km (0.036 R)
• M3: 892,650 km (0.11 R)
• M4: 1,181,524 km (0.072 R)
• M5: 1,482,964 km (0.097 R)
• M6: 2,649,977 km (0.108 R)
• M7: 2,924,190 km (0.102 R)
• M8: 4,113,941 km (0.117 R)
• M9: 4,411,192 km (0.053 R)
• M10: 4,741,804 km (0.096 R)
• M11: 5,390,759 km (0.109 R)
• M12: 6,255,435 km (0.116 R)
• M13: 6,865,046 km (0.045 R)
• M14: 8,257,503 km (0.11 R)
• M15: 9,255,171 km (0.085 R)
• M16: 9,798,511 km (0.108 R)
• M17: 10,299,065 km (0.102 R)
• M18: 10,718,388 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.9

Radius: 12.1

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.3 AU - 6.4 AU

Year: 7868 Days

Day: 6.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 39,492,451 km

• M1: 150,944 km (0.092 R)
• M2: 577,897 km (0.118 R)
• M3: 1,073,963 km (0.114 R)
• M4: 1,491,491 km (0.1 R)
• M5: 2,034,531 km (0.09 R)
• M6: 2,882,452 km (0.106 R)
• M7: 3,592,892 km (0.118 R)
• M8: 6,165,975 km (0.057 R)
• M9: 8,092,048 km (0.075 R)
• M10: 8,504,190 km (0.113 R)
• M11: 9,326,081 km (0.082 R)
• M12: 10,438,939 km (0.106 R)
• M13: 14,131,912 km (0.099 R)
• M14: 15,036,980 km (0.062 R)
• M15: 15,598,271 km (0.102 R)
• M16: 15,980,194 km (0.069 R)
• M17: 19,927,035 km (0.064 R)
• M18: 26,141,181 km (0.082 R)
• M19: 26,590,423 km (0.098 R)
• M20: 27,227,860 km (0.11 R)
• M21: 29,105,463 km (0.113 R)
• M22: 29,880,080 km (0.116 R)
• M23: 31,979,088 km (0.075 R)
• M24: 32,700,000 km (0.112 R)
• M25: 33,854,896 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 464.2

Radius: 5.4

Gravity: 15.92 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 5.13 AU - 7.79 AU

Year: 10440 Days

Day: 16.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 39,492,451 km

• M1: 92,751 km (0.046 R)
• M2: 727,046 km (0.063 R)
• M3: 1,026,989 km (0.079 R)
• M4: 1,235,230 km (0.107 R)
• M5: 2,018,973 km (0.112 R)
• M6: 3,388,093 km (0.108 R)
• M7: 3,752,214 km (0.075 R)
• M8: 4,277,901 km (0.112 R)
• M9: 5,605,432 km (0.099 R)
• M10: 7,542,874 km (0.111 R)
• M11: 7,994,510 km (0.111 R)
• M12: 10,228,306 km (0.104 R)
• M13: 10,427,121 km (0.082 R)
• M14: 11,091,485 km (0.108 R)
• M15: 11,892,732 km (0.081 R)
• M16: 12,504,288 km (0.107 R)
• M17: 14,093,915 km (0.096 R)
• M18: 16,965,296 km (0.063 R)
• M19: 17,455,379 km (0.083 R)
• M20: 18,244,508 km (0.069 R)
• M21: 19,663,294 km (0.108 R)
• M22: 20,517,348 km (0.037 R)
• M23: 25,252,420 km (0.113 R)
• M24: 25,524,837 km (0.096 R)
• M25: 26,822,150 km (0.083 R)
• M26: 29,850,161 km (0.049 R)
• M27: 30,977,081 km (0.063 R)
• M28: 33,973,377 km (0.057 R)
• M29: 40,162,989 km (0.119 R)
• M30: 40,783,072 km (0.09 R)
• M31: 42,810,123 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 310.9

Radius: 3.3

Gravity: 28.55 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 6.32 AU - 7.14 AU

Year: 11101 Days

Day: 23.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,492,451 km

• M1: 50,863 km (0.072 R)
• M2: 166,353 km (0.094 R)
• M3: 870,510 km (0.106 R)
• M4: 1,959,433 km (0.11 R)
• M5: 2,528,204 km (0.046 R)
• M6: 4,855,049 km (0.111 R)
• M7: 5,305,189 km (0.069 R)
• M8: 6,150,268 km (0.068 R)
• M9: 8,393,189 km (0.087 R)
• M10: 10,047,292 km (0.094 R)
• M11: 10,334,520 km (0.118 R)
• M12: 11,383,201 km (0.112 R)
• M13: 11,695,262 km (0.117 R)
• M14: 13,227,893 km (0.041 R)
• M15: 13,982,913 km (0.065 R)
• M16: 14,704,872 km (0.112 R)
• M17: 15,262,573 km (0.053 R)
• M18: 16,751,222 km (0.093 R)
• M19: 17,703,262 km (0.115 R)
• M20: 23,759,732 km (0.077 R)
• M21: 26,834,567 km (0.11 R)
• M22: 28,419,407 km (0.095 R)
• M23: 34,945,165 km (0.098 R)
• M24: 36,719,545 km (0.06 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: 462 - 15,713 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit