🌌 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 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.47 AU - 0.61 AU

Year: 260 Days

Day: 39.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 9.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,783,515 km

• M1: 431,590 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.2

Radius: 11.5

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.88 AU - 1 AU

Year: 598 Days

Day: 13 Hours

Environment

Temp: -145 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,783,515 km

• M1: 148,551 km (0.075 R)
• M2: 736,321 km (0.104 R)
• M3: 1,159,832 km (0.1 R)
• M4: 1,524,701 km (0.117 R)
• M5: 1,994,588 km (0.089 R)
• M6: 3,193,615 km (0.089 R)
• M7: 3,787,070 km (0.111 R)
• M8: 4,872,552 km (0.113 R)
• M9: 5,230,540 km (0.112 R)
• M10: 7,717,754 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.3

Radius: 12.2

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.71 AU - 1.87 AU

Year: 1571 Days

Day: 8.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,783,515 km

• M1: 151,842 km (0.079 R)
• M2: 596,447 km (0.101 R)
• M3: 1,109,418 km (0.088 R)
• M4: 2,465,672 km (0.12 R)
• M5: 2,967,274 km (0.089 R)
• M6: 3,790,810 km (0.102 R)
• M7: 4,573,207 km (0.115 R)
• M8: 6,181,384 km (0.099 R)
• M9: 7,039,178 km (0.055 R)
• M10: 7,575,337 km (0.105 R)
• M11: 8,248,976 km (0.105 R)
• M12: 8,932,938 km (0.086 R)
• M13: 9,934,645 km (0.093 R)
• M14: 10,709,263 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.2

Radius: 10.4

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 4.21 AU - 4.89 AU

Year: 6367 Days

Day: 7.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,783,515 km

• M1: 135,984 km (0.096 R)
• M2: 555,158 km (0.108 R)
• M3: 4,339,685 km (0.033 R)
• M4: 6,336,367 km (0.119 R)
• M5: 9,581,444 km (0.104 R)
• M6: 10,068,236 km (0.104 R)
• M7: 11,047,204 km (0.045 R)
• M8: 11,492,108 km (0.101 R)
• M9: 14,523,260 km (0.104 R)
• M10: 18,419,687 km (0.107 R)
• M11: 21,214,025 km (0.08 R)
• M12: 22,747,852 km (0.118 R)
• M13: 25,491,776 km (0.042 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 367.3

Radius: 7.5

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 5.77 AU - 6.93 AU

Year: 10497 Days

Day: 24.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,783,515 km

• M1: 93,947 km (0.109 R)
• M2: 459,565 km (0.077 R)
• M3: 891,903 km (0.065 R)
• M4: 1,698,534 km (0.059 R)
• M5: 2,528,952 km (0.108 R)
• M6: 3,003,028 km (0.072 R)
• M7: 3,701,351 km (0.045 R)
• M8: 5,019,607 km (0.062 R)
• M9: 5,866,780 km (0.067 R)
• M10: 6,553,434 km (0.097 R)
• M11: 7,369,341 km (0.083 R)
• M12: 8,418,770 km (0.041 R)
• M13: 9,796,417 km (0.105 R)
• M14: 11,788,013 km (0.119 R)
• M15: 13,161,471 km (0.09 R)
• M16: 13,564,338 km (0.109 R)
• M17: 14,638,451 km (0.079 R)
• M18: 15,703,737 km (0.04 R)
• M19: 18,199,778 km (0.107 R)
• M20: 18,556,269 km (0.114 R)
• M21: 21,182,909 km (0.079 R)
• M22: 23,877,316 km (0.037 R)
• M23: 28,861,768 km (0.07 R)
• M24: 30,133,649 km (0.045 R)
• M25: 31,749,904 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 882.7

Radius: 6.2

Gravity: 22.96 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 7.02 AU - 7.78 AU

Year: 13206 Days

Day: 22.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 62,783,515 km

• M1: 77,043 km (0.116 R)
• M2: 657,782 km (0.052 R)
• M3: 954,883 km (0.061 R)
• M4: 1,297,762 km (0.086 R)
• M5: 1,821,504 km (0.094 R)
• M6: 2,018,374 km (0.044 R)
• M7: 2,788,804 km (0.116 R)
• M8: 3,517,944 km (0.112 R)
• M9: 3,711,673 km (0.096 R)
• M10: 4,273,562 km (0.116 R)
• M11: 4,722,954 km (0.104 R)
• M12: 6,545,954 km (0.076 R)
• M13: 6,840,063 km (0.079 R)
• M14: 7,728,824 km (0.062 R)
• M15: 8,493,419 km (0.088 R)
• M16: 9,572,020 km (0.077 R)
• M17: 11,447,079 km (0.056 R)
• M18: 11,936,115 km (0.083 R)
• M19: 15,094,276 km (0.034 R)
• M20: 15,756,695 km (0.076 R)
• M21: 16,981,901 km (0.102 R)
• M22: 17,218,565 km (0.057 R)
• M23: 17,860,191 km (0.086 R)
• M24: 19,794,042 km (0.104 R)
• M25: 20,676,670 km (0.093 R)
• M26: 21,956,180 km (0.109 R)
• M27: 24,975,664 km (0.108 R)
• M28: 29,492,472 km (0.105 R)
• M29: 31,111,420 km (0.109 R)
• M30: 33,897,980 km (0.11 R)
• M31: 35,032,231 km (0.031 R)
• M32: 52,493,145 km (0.082 R)
• M33: 56,954,303 km (0.05 R)
• M34: 58,915,381 km (0.102 R)
• M35: 60,186,515 km (0.045 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 553 - 17,201 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit