🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.6

Radius: 1.47

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.57 AU - 0.67 AU

Year: 315 Days

Day: 33.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 0.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.8

Radius: 10.2

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.66 AU - 0.94 AU

Year: 462 Days

Day: 12.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 26,882,918 km

• M1: 127,158 km (0.116 R)
• M2: 506,688 km (0.09 R)
• M3: 850,913 km (0.089 R)
• M4: 1,172,249 km (0.109 R)
• M5: 1,524,701 km (0.093 R)
• M6: 1,933,403 km (0.09 R)
• M7: 2,300,217 km (0.112 R)
• M8: 2,627,088 km (0.083 R)
• M9: 3,154,720 km (0.093 R)
• M10: 3,850,051 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.1

Radius: 10.2

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.19 AU - 2.79 AU

Year: 2537 Days

Day: 5.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 26,882,918 km

• M1: 126,859 km (0.085 R)
• M2: 838,945 km (0.118 R)
• M3: 1,212,940 km (0.093 R)
• M4: 1,649,915 km (0.054 R)
• M5: 2,050,987 km (0.097 R)
• M6: 2,775,639 km (0.052 R)
• M7: 3,428,783 km (0.053 R)
• M8: 4,294,805 km (0.08 R)
• M9: 4,893,047 km (0.052 R)
• M10: 6,109,577 km (0.064 R)
• M11: 6,480,879 km (0.086 R)
• M12: 6,840,961 km (0.116 R)
• M13: 7,433,817 km (0.082 R)
• M14: 8,722,304 km (0.079 R)
• M15: 9,649,212 km (0.086 R)
• M16: 11,179,449 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.7

Radius: 14.8

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.9 AU - 4.32 AU

Year: 5380 Days

Day: 13.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 26,882,918 km

• M1: 187,596 km (0.083 R)
• M2: 733,778 km (0.038 R)
• M3: 1,275,471 km (0.107 R)
• M4: 2,741,231 km (0.095 R)
• M5: 3,461,695 km (0.088 R)
• M6: 4,065,023 km (0.088 R)
• M7: 7,499,640 km (0.072 R)
• M8: 8,674,732 km (0.051 R)
• M9: 9,580,696 km (0.108 R)
• M10: 14,571,132 km (0.094 R)
• M11: 18,570,182 km (0.089 R)
• M12: 23,094,470 km (0.048 R)
• M13: 23,638,708 km (0.087 R)
• M14: 26,574,117 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 801.8

Radius: 7.4

Gravity: 14.64 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 9.22 AU - 9.88 AU

Year: 19055 Days

Day: 16.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 26,882,918 km

• M1: 92,751 km (0.055 R)
• M2: 328,517 km (0.078 R)
• M3: 685,009 km (0.112 R)
• M4: 1,191,098 km (0.061 R)
• M5: 2,314,129 km (0.101 R)
• M6: 3,007,665 km (0.093 R)
• M7: 3,388,691 km (0.11 R)
• M8: 3,680,257 km (0.097 R)
• M9: 4,347,464 km (0.111 R)
• M10: 6,301,062 km (0.109 R)
• M11: 6,880,006 km (0.116 R)
• M12: 10,139,145 km (0.115 R)
• M13: 14,681,984 km (0.114 R)
• M14: 15,380,307 km (0.085 R)
• M15: 15,618,018 km (0.085 R)
• M16: 18,754,187 km (0.091 R)
• M17: 19,668,829 km (0.119 R)
• M18: 20,517,198 km (0.098 R)
• M19: 21,193,680 km (0.066 R)
• M20: 29,767,732 km (0.053 R)
• M21: 30,384,973 km (0.085 R)
• M22: 30,885,079 km (0.074 R)
• M23: 36,471,213 km (0.106 R)
• M24: 36,894,276 km (0.1 R)
• M25: 54,395,731 km (0.038 R)
• M26: 58,148,094 km (0.064 R)
• M27: 59,696,282 km (0.087 R)
• M28: 60,677,644 km (0.11 R)
• M29: 61,470,363 km (0.091 R)
• M30: 68,063,441 km (0.064 R)
• M31: 69,782,320 km (0.041 R)
• M32: 71,529,923 km (0.058 R)
• M33: 72,192,791 km (0.116 R)
• M34: 73,306,547 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24.2

Radius: 3.9

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 9.32 AU - 11.92 AU

Year: 22346 Days

Day: 21.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 26,882,918 km

• M1: 49,068 km (0.085 R)
• M2: 260,001 km (0.041 R)
• M3: 414,835 km (0.083 R)
• M4: 887,265 km (0.115 R)
• M5: 1,057,358 km (0.074 R)
• M6: 2,065,199 km (0.09 R)
• M7: 2,477,490 km (0.116 R)
• M8: 2,781,473 km (0.111 R)
• M9: 4,203,850 km (0.097 R)
• M10: 4,513,069 km (0.081 R)
• M11: 4,685,705 km (0.109 R)
• M12: 9,451,294 km (0.093 R)
• M13: 11,505,722 km (0.119 R)
• M14: 12,015,103 km (0.03 R)
• M15: 18,335,463 km (0.115 R)
• M16: 20,203,492 km (0.085 R)
• M17: 20,876,084 km (0.118 R)
• M18: 21,217,915 km (0.11 R)
• M19: 25,615,344 km (0.041 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 14,029 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit