🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.42 AU - 0.6 AU

Year: 139 Days

Day: 13.4 Hours

Environment

Temp: 142 °C

Axial Tilt: 2.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.84 AU - 1.34 AU

Year: 433 Days

Day: 20 Hours

Environment

Temp: -0 °C

Axial Tilt: 31.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.15 AU - 1.15 AU

Year: 470 Days

Day: 30.6 Hours

Environment

Temp: -13 °C

Axial Tilt: 32 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.95 AU - 1.45 AU

Year: 501 Days

Day: 15.5 Hours

Environment

Temp: -20 °C

Axial Tilt: 32.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 10.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.5

Radius: 11.7

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 8.03 AU - 13.39 AU

Year: 13347 Days

Day: 14.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 160.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 28,972,582 km

• M1: 147,354 km (0.12 R)
• M2: 651,499 km (0.084 R)
• M3: 1,042,398 km (0.085 R)
• M4: 1,484,310 km (0.09 R)
• M5: 2,416,305 km (0.096 R)
• M6: 2,824,557 km (0.118 R)
• M7: 3,351,441 km (0.083 R)
• M8: 3,862,168 km (0.105 R)
• M9: 4,787,431 km (0.07 R)
• M10: 8,365,363 km (0.067 R)
• M11: 8,828,818 km (0.068 R)
• M12: 10,062,850 km (0.075 R)
• M13: 10,534,084 km (0.086 R)
• M14: 12,212,721 km (0.114 R)
• M15: 15,603,208 km (0.026 R)
• M16: 16,884,812 km (0.119 R)
• M17: 17,476,322 km (0.077 R)
• M18: 19,818,876 km (0.066 R)
• M19: 21,492,427 km (0.055 R)
• M20: 25,599,038 km (0.069 R)
• M21: 26,380,089 km (0.102 R)
• M22: 31,073,273 km (0.113 R)
• M23: 32,299,826 km (0.086 R)
• M24: 32,982,291 km (0.08 R)
• M25: 34,141,226 km (0.11 R)
• M26: 43,574,718 km (0.104 R)
• M27: 43,990,151 km (0.115 R)
• M28: 44,408,128 km (0.108 R)
• M29: 49,633,133 km (0.107 R)
• M30: 50,086,265 km (0.1 R)
• M31: 50,694,679 km (0.081 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 262.3

Radius: 3.6

Gravity: 20.24 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 10.91 AU - 14.89 AU

Year: 17643 Days

Day: 17.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 28,972,582 km

• M1: 48,470 km (0.112 R)
• M2: 199,564 km (0.051 R)
• M3: 444,904 km (0.082 R)
• M4: 1,528,441 km (0.054 R)
• M5: 1,787,844 km (0.078 R)
• M6: 1,902,885 km (0.068 R)
• M7: 5,590,472 km (0.112 R)
• M8: 8,219,505 km (0.06 R)
• M9: 13,169,549 km (0.112 R)
• M10: 14,576,966 km (0.11 R)
• M11: 14,910,270 km (0.119 R)
• M12: 19,717,149 km (0.115 R)
• M13: 20,042,674 km (0.116 R)
• M14: 24,327,307 km (0.109 R)
• M15: 24,607,803 km (0.112 R)
• M16: 30,248,540 km (0.116 R)
• M17: 31,338,809 km (0.11 R)
• M18: 49,763,732 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 995.9

Radius: 6.7

Gravity: 22.19 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 13.49 AU - 14.77 AU

Year: 20226 Days

Day: 16.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 28,972,582 km

• M1: 83,326 km (0.04 R)
• M2: 614,997 km (0.107 R)
• M3: 1,679,685 km (0.098 R)
• M4: 2,008,351 km (0.109 R)
• M5: 2,333,428 km (0.032 R)
• M6: 2,569,343 km (0.055 R)
• M7: 2,979,990 km (0.112 R)
• M8: 3,374,479 km (0.112 R)
• M9: 3,615,182 km (0.111 R)
• M10: 3,932,330 km (0.11 R)
• M11: 4,881,827 km (0.07 R)
• M12: 6,603,699 km (0.089 R)
• M13: 6,885,691 km (0.11 R)
• M14: 7,324,013 km (0.057 R)
• M15: 7,575,337 km (0.103 R)
• M16: 8,256,007 km (0.114 R)
• M17: 8,528,425 km (0.105 R)
• M18: 10,104,439 km (0.092 R)
• M19: 11,059,322 km (0.102 R)
• M20: 13,443,912 km (0.12 R)
• M21: 14,361,545 km (0.093 R)
• M22: 15,157,555 km (0.077 R)
• M23: 16,837,240 km (0.051 R)
• M24: 17,721,962 km (0.089 R)
• M25: 18,917,848 km (0.051 R)
• M26: 25,713,630 km (0.115 R)
• M27: 27,848,392 km (0.067 R)
• M28: 32,064,060 km (0.118 R)
• M29: 39,539,016 km (0.045 R)
• M30: 41,098,425 km (0.066 R)
• M31: 43,023,151 km (0.103 R)
• M32: 44,007,804 km (0.086 R)
• M33: 68,307,136 km (0.043 R)
• M34: 80,995,728 km (0.109 R)
• M35: 82,244,272 km (0.106 R)
• M36: 86,845,753 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30

Radius: 6.7

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 14.76 AU - 15.54 AU

Year: 22455 Days

Day: 23.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,972,582 km

• M1: 87,814 km (0.077 R)
• M2: 407,953 km (0.069 R)
• M3: 1,238,970 km (0.073 R)
• M4: 1,656,048 km (0.047 R)
• M5: 1,988,305 km (0.106 R)
• M6: 3,608,450 km (0.109 R)
• M7: 8,351,152 km (0.089 R)
• M8: 11,932,973 km (0.102 R)
• M9: 12,615,439 km (0.117 R)
• M10: 15,607,546 km (0.08 R)
• M11: 20,656,025 km (0.09 R)
• M12: 27,273,637 km (0.069 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: 403 - 11,599 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit