🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.5 AU - 0.8 AU

Year: 344 Days

Day: 15 Hours

Environment

Temp: -134 °C

Axial Tilt: 20.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.5

Radius: 11.9

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.63 AU - 0.79 AU

Year: 392 Days

Day: 14.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,252,198 km

• M1: 147,952 km (0.088 R)
• M2: 692,339 km (0.083 R)
• M3: 1,159,383 km (0.115 R)
• M4: 1,665,922 km (0.077 R)
• M5: 2,063,852 km (0.086 R)
• M6: 2,477,640 km (0.069 R)
• M7: 3,203,788 km (0.067 R)
• M8: 3,611,143 km (0.118 R)
• M9: 4,148,798 km (0.06 R)
• M10: 4,784,738 km (0.1 R)
• M11: 5,877,252 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.3

Radius: 10.8

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.76 AU - 1.04 AU

Year: 560 Days

Day: 12.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,252,198 km

• M1: 134,788 km (0.061 R)
• M2: 546,182 km (0.097 R)
• M3: 936,333 km (0.117 R)
• M4: 1,621,491 km (0.037 R)
• M5: 1,964,070 km (0.092 R)
• M6: 2,526,558 km (0.107 R)
• M7: 3,047,309 km (0.084 R)
• M8: 3,688,934 km (0.118 R)
• M9: 4,375,588 km (0.11 R)
• M10: 4,848,617 km (0.098 R)
• M11: 5,209,596 km (0.118 R)
• M12: 5,605,283 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.5

Radius: 8.8

Gravity: 8.99 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.36 AU - 2.86 AU

Year: 2766 Days

Day: 9.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,252,198 km

• M1: 109,506 km (0.113 R)
• M2: 405,111 km (0.064 R)
• M3: 788,979 km (0.083 R)
• M4: 1,091,017 km (0.113 R)
• M5: 1,392,607 km (0.048 R)
• M6: 2,263,266 km (0.093 R)
• M7: 3,105,353 km (0.079 R)
• M8: 4,080,581 km (0.072 R)
• M9: 4,572,010 km (0.086 R)
• M10: 7,120,410 km (0.06 R)
• M11: 7,674,520 km (0.118 R)
• M12: 8,799,347 km (0.069 R)
• M13: 11,006,215 km (0.112 R)
• M14: 11,496,447 km (0.077 R)
• M15: 12,302,480 km (0.057 R)
• M16: 13,744,304 km (0.114 R)
• M17: 14,554,676 km (0.06 R)
• M18: 15,958,054 km (0.119 R)
• M19: 19,738,541 km (0.117 R)
• M20: 20,038,036 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604

Radius: 13

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.26 AU - 3.28 AU

Year: 3024 Days

Day: 9.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,252,198 km

• M1: 161,715 km (0.104 R)
• M2: 575,204 km (0.06 R)
• M3: 990,787 km (0.1 R)
• M4: 1,506,600 km (0.044 R)
• M5: 1,935,946 km (0.068 R)
• M6: 4,555,704 km (0.112 R)
• M7: 5,058,802 km (0.119 R)
• M8: 7,767,421 km (0.12 R)
• M9: 9,039,900 km (0.099 R)
• M10: 11,244,225 km (0.074 R)
• M11: 12,253,562 km (0.034 R)
• M12: 12,691,734 km (0.096 R)
• M13: 13,974,386 km (0.062 R)
• M14: 19,918,508 km (0.04 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.8

Radius: 3.9

Gravity: 33.52 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 7.2 AU - 8.44 AU

Year: 14346 Days

Day: 18.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 55,252,198 km

• M1: 48,470 km (0.102 R)
• M2: 184,305 km (0.066 R)
• M3: 365,168 km (0.11 R)
• M4: 496,815 km (0.056 R)
• M5: 911,051 km (0.116 R)
• M6: 1,614,759 km (0.114 R)
• M7: 2,032,287 km (0.117 R)
• M8: 2,456,098 km (0.061 R)
• M9: 2,844,753 km (0.104 R)
• M10: 3,030,105 km (0.067 R)
• M11: 3,424,894 km (0.085 R)
• M12: 3,608,151 km (0.114 R)
• M13: 3,965,690 km (0.064 R)
• M14: 8,128,251 km (0.069 R)
• M15: 8,454,524 km (0.114 R)
• M16: 8,741,153 km (0.098 R)
• M17: 10,271,839 km (0.092 R)
• M18: 15,775,544 km (0.053 R)
• M19: 18,821,507 km (0.026 R)
• M20: 20,911,838 km (0.079 R)
• M21: 28,312,743 km (0.062 R)
• M22: 29,713,129 km (0.042 R)
• M23: 31,499,328 km (0.115 R)
• M24: 32,418,607 km (0.114 R)
• M25: 33,592,800 km (0.112 R)
• M26: 35,653,361 km (0.068 R)
• M27: 37,030,709 km (0.118 R)
• M28: 38,965,458 km (0.099 R)
• M29: 40,830,944 km (0.109 R)
• M30: 42,061,237 km (0.114 R)
• M31: 50,743,747 km (0.104 R)
• M32: 51,846,882 km (0.086 R)
• M33: 55,252,178 km (0.042 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 309 - 10,956 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit