🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.5 AU - 0.7 AU

Year: 305 Days

Day: 21.2 Hours

Environment

Temp: -133 °C

Axial Tilt: 7.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.4

Radius: 11

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.71 AU - 0.95 AU

Year: 496 Days

Day: 5.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 47,850,641 km

• M1: 136,882 km (0.102 R)
• M2: 774,917 km (0.075 R)
• M3: 1,497,774 km (0.119 R)
• M4: 1,897,200 km (0.071 R)
• M5: 2,627,088 km (0.066 R)
• M6: 3,319,577 km (0.093 R)
• M7: 3,981,697 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.2

Radius: 13.2

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.18 AU - 1.84 AU

Year: 1217 Days

Day: 11 Hours

Environment

Temp: -177 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,850,641 km

• M1: 164,109 km (0.093 R)
• M2: 578,794 km (0.103 R)
• M3: 1,049,728 km (0.112 R)
• M4: 1,618,051 km (0.077 R)
• M5: 2,117,857 km (0.113 R)
• M6: 2,586,697 km (0.1 R)
• M7: 3,043,868 km (0.105 R)
• M8: 4,607,166 km (0.105 R)
• M9: 5,206,455 km (0.111 R)
• M10: 6,699,741 km (0.057 R)
• M11: 7,199,248 km (0.057 R)
• M12: 9,363,780 km (0.091 R)
• M13: 10,204,071 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.5

Radius: 8.8

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.31 AU - 2.55 AU

Year: 2485 Days

Day: 11.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,850,641 km

• M1: 109,506 km (0.079 R)
• M2: 438,322 km (0.113 R)
• M3: 716,424 km (0.112 R)
• M4: 1,212,341 km (0.102 R)
• M5: 1,811,630 km (0.099 R)
• M6: 2,491,104 km (0.055 R)
• M7: 3,894,182 km (0.105 R)
• M8: 6,798,924 km (0.083 R)
• M9: 7,804,371 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.6

Radius: 11.1

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 4.28 AU - 4.78 AU

Year: 6325 Days

Day: 10 Hours

Environment

Temp: -217 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 47,850,641 km

• M1: 138,528 km (0.047 R)
• M2: 561,441 km (0.093 R)
• M3: 1,024,446 km (0.072 R)
• M4: 1,619,098 km (0.111 R)
• M5: 2,082,253 km (0.116 R)
• M6: 3,783,031 km (0.111 R)
• M7: 4,471,331 km (0.066 R)
• M8: 6,970,214 km (0.079 R)
• M9: 7,533,001 km (0.106 R)
• M10: 8,835,250 km (0.108 R)
• M11: 10,863,498 km (0.113 R)
• M12: 11,466,527 km (0.118 R)
• M13: 12,039,038 km (0.028 R)
• M14: 12,739,904 km (0.09 R)
• M15: 13,410,851 km (0.093 R)
• M16: 14,762,617 km (0.071 R)
• M17: 15,377,913 km (0.109 R)
• M18: 17,191,937 km (0.107 R)
• M19: 17,598,544 km (0.064 R)
• M20: 19,000,276 km (0.119 R)
• M21: 19,362,153 km (0.067 R)
• M22: 19,728,518 km (0.108 R)
• M23: 21,630,506 km (0.104 R)
• M24: 24,665,398 km (0.086 R)
• M25: 29,011,066 km (0.117 R)
• M26: 31,063,399 km (0.105 R)
• M27: 33,210,727 km (0.069 R)
• M28: 35,346,087 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.1

Radius: 10

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.74 AU - 5.32 AU

Year: 6325 Days

Day: 10.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 47,850,641 km

• M1: 124,316 km (0.12 R)
• M2: 510,278 km (0.058 R)
• M3: 837,748 km (0.083 R)
• M4: 1,162,974 km (0.067 R)
• M5: 1,599,949 km (0.083 R)
• M6: 2,274,486 km (0.101 R)
• M7: 2,659,252 km (0.099 R)
• M8: 3,233,109 km (0.061 R)
• M9: 3,561,327 km (0.092 R)
• M10: 4,336,842 km (0.095 R)
• M11: 5,191,645 km (0.064 R)
• M12: 5,643,879 km (0.066 R)
• M13: 6,490,004 km (0.092 R)
• M14: 7,051,296 km (0.064 R)
• M15: 8,151,139 km (0.07 R)
• M16: 8,804,882 km (0.059 R)
• M17: 10,310,285 km (0.084 R)
• M18: 11,321,716 km (0.088 R)
• M19: 11,673,122 km (0.102 R)
• M20: 12,503,988 km (0.105 R)
• M21: 15,600,365 km (0.072 R)
• M22: 17,725,553 km (0.098 R)
• M23: 19,103,648 km (0.079 R)
• M24: 22,621,143 km (0.11 R)
• M25: 23,828,996 km (0.101 R)
• M26: 25,164,157 km (0.092 R)
• M27: 31,398,499 km (0.109 R)
• M28: 32,093,381 km (0.097 R)
• M29: 35,508,551 km (0.047 R)
• M30: 36,262,823 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 759.4

Radius: 4.8

Gravity: 32.96 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 5.17 AU - 6.69 AU

Year: 9473 Days

Day: 17.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,850,641 km

• M1: 59,839 km (0.078 R)
• M2: 294,558 km (0.097 R)
• M3: 515,065 km (0.06 R)
• M4: 1,189,453 km (0.076 R)
• M5: 2,808,251 km (0.108 R)
• M6: 3,234,456 km (0.106 R)
• M7: 4,711,435 km (0.087 R)
• M8: 7,214,956 km (0.064 R)
• M9: 9,627,521 km (0.107 R)
• M10: 14,954,551 km (0.053 R)
• M11: 17,897,590 km (0.075 R)
• M12: 18,727,709 km (0.114 R)
• M13: 20,221,443 km (0.114 R)
• M14: 20,709,282 km (0.093 R)
• M15: 20,873,540 km (0.088 R)
• M16: 24,436,962 km (0.106 R)
• M17: 27,287,250 km (0.062 R)
• M18: 29,099,628 km (0.108 R)
• M19: 32,075,878 km (0.052 R)
• M20: 44,491,604 km (0.113 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 400 - 18,936 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit