🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.54 AU - 0.74 AU

Year: 191 Days

Day: 24.9 Hours

Environment

Temp: 139 °C

Axial Tilt: 95.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.74 AU - 1.2 AU

Year: 356 Days

Day: 19.1 Hours

Environment

Temp: 31 °C

Axial Tilt: 122.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 68,320,045 km

• M1: 65,524 km (0.111 R)
• M2: 120,277 km (0.091 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.21 AU - 1.71 AU

Year: 658 Days

Day: 42.1 Hours

Environment

Temp: -41 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,320,045 km

• M1: 421,268 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.29 AU - 3.13 AU

Year: 1663 Days

Day: 19.9 Hours

Environment

Temp: -101 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 68,320,045 km

• M1: 46,824 km (0.103 R)
• M2: 201,060 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.6

Radius: 9.3

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.29 AU - 7.43 AU

Year: 5979 Days

Day: 5.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,320,045 km

• M1: 115,639 km (0.114 R)
• M2: 426,055 km (0.097 R)
• M3: 955,033 km (0.047 R)
• M4: 1,312,273 km (0.091 R)
• M5: 2,690,518 km (0.085 R)
• M6: 3,416,516 km (0.102 R)
• M7: 3,755,355 km (0.091 R)
• M8: 4,607,764 km (0.114 R)
• M9: 7,151,975 km (0.036 R)
• M10: 8,017,997 km (0.113 R)
• M11: 8,826,424 km (0.096 R)
• M12: 9,732,837 km (0.064 R)
• M13: 10,891,323 km (0.078 R)
• M14: 21,999,564 km (0.092 R)
• M15: 25,657,980 km (0.077 R)
• M16: 30,081,888 km (0.074 R)
• M17: 31,925,831 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.5

Radius: 10.3

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 7.93 AU - 11.23 AU

Year: 11054 Days

Day: 11.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 88.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,320,045 km

• M1: 131,796 km (0.104 R)
• M2: 835,055 km (0.113 R)
• M3: 1,269,787 km (0.114 R)
• M4: 1,664,576 km (0.066 R)
• M5: 2,009,847 km (0.073 R)
• M6: 2,349,135 km (0.12 R)
• M7: 2,848,194 km (0.108 R)
• M8: 3,234,156 km (0.117 R)
• M9: 4,550,618 km (0.074 R)
• M10: 5,851,222 km (0.075 R)
• M11: 6,551,340 km (0.12 R)
• M12: 7,345,555 km (0.097 R)
• M13: 7,868,549 km (0.116 R)
• M14: 8,589,760 km (0.115 R)
• M15: 9,262,203 km (0.096 R)
• M16: 11,227,470 km (0.106 R)
• M17: 12,419,615 km (0.075 R)
• M18: 12,816,050 km (0.109 R)
• M19: 13,874,455 km (0.092 R)
• M20: 14,611,822 km (0.066 R)
• M21: 14,990,155 km (0.11 R)
• M22: 16,097,928 km (0.12 R)
• M23: 16,981,153 km (0.069 R)
• M24: 20,289,062 km (0.087 R)
• M25: 21,561,990 km (0.107 R)
• M26: 22,301,003 km (0.048 R)
• M27: 23,916,660 km (0.081 R)
• M28: 26,811,678 km (0.111 R)
• M29: 30,749,094 km (0.086 R)
• M30: 36,653,872 km (0.112 R)
• M31: 40,240,182 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 206.3

Radius: 6.9

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 13.46 AU - 19.18 AU

Year: 24577 Days

Day: 15.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 65 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,320,045 km

• M1: 97,837 km (0.047 R)
• M2: 338,839 km (0.08 R)
• M3: 581,786 km (0.074 R)
• M4: 2,903,695 km (0.086 R)
• M5: 3,472,316 km (0.057 R)
• M6: 5,304,292 km (0.032 R)
• M7: 9,133,698 km (0.113 R)
• M8: 9,701,123 km (0.089 R)
• M9: 11,485,825 km (0.118 R)
• M10: 13,413,244 km (0.077 R)
• M11: 13,809,679 km (0.046 R)
• M12: 16,429,736 km (0.116 R)
• M13: 17,737,670 km (0.043 R)
• M14: 17,975,531 km (0.064 R)
• M15: 23,762,275 km (0.034 R)
• M16: 24,833,995 km (0.07 R)
• M17: 41,137,170 km (0.059 R)
• M18: 47,386,771 km (0.113 R)
• M19: 48,925,684 km (0.111 R)
• M20: 50,656,681 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 314.3

Radius: 4.6

Gravity: 14.85 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 12.73 AU - 20.39 AU

Year: 25121 Days

Day: 22.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 68,320,045 km

• M1: 57,146 km (0.117 R)
• M2: 603,328 km (0.119 R)
• M3: 1,327,532 km (0.119 R)
• M4: 2,378,905 km (0.11 R)
• M5: 3,034,443 km (0.119 R)
• M6: 3,486,977 km (0.083 R)
• M7: 4,900,976 km (0.089 R)
• M8: 5,260,609 km (0.112 R)
• M9: 6,788,751 km (0.049 R)
• M10: 6,964,978 km (0.101 R)
• M11: 8,386,905 km (0.078 R)
• M12: 8,796,504 km (0.082 R)
• M13: 9,935,094 km (0.065 R)
• M14: 10,510,298 km (0.04 R)
• M15: 11,229,564 km (0.093 R)
• M16: 12,832,505 km (0.083 R)
• M17: 16,247,526 km (0.079 R)
• M18: 16,722,948 km (0.113 R)
• M19: 17,289,176 km (0.085 R)
• M20: 17,535,713 km (0.094 R)
• M21: 20,588,108 km (0.096 R)
• M22: 21,711,139 km (0.082 R)
• M23: 22,190,899 km (0.051 R)
• M24: 31,342,998 km (0.06 R)
• M25: 33,078,483 km (0.106 R)
• M26: 35,534,730 km (0.108 R)
• M27: 37,833,002 km (0.104 R)
• M28: 39,230,246 km (0.067 R)
• M29: 41,243,684 km (0.102 R)
• M30: 45,319,179 km (0.052 R)
• M31: 47,856,658 km (0.102 R)
• M32: 49,160,254 km (0.06 R)
• M33: 52,866,691 km (0.029 R)
• M34: 53,734,358 km (0.075 R)
• M35: 55,319,946 km (0.082 R)
• M36: 57,482,084 km (0.119 R)
• M37: 65,492,901 km (0.049 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 523 - 19,140 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit