🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.58 AU - 0.9 AU

Year: 224 Days

Day: 28.7 Hours

Environment

Temp: 126 °C

Axial Tilt: 0.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.02 AU - 1.02 AU

Year: 362 Days

Day: 22.8 Hours

Environment

Temp: 129 °C

Axial Tilt: 13.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 91,994,236 km

• M1: 309,668 km (0.071 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.25 AU - 2.69 AU

Year: 1364 Days

Day: 33.7 Hours

Environment

Temp: -67 °C

Axial Tilt: 13.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 12.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.1

Radius: 11

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 11.59 AU - 13.55 AU

Year: 15663 Days

Day: 14.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 91,994,236 km

• M1: 137,331 km (0.077 R)
• M2: 503,696 km (0.077 R)
• M3: 1,098,048 km (0.094 R)
• M4: 1,605,036 km (0.12 R)
• M5: 2,345,994 km (0.101 R)
• M6: 3,570,752 km (0.09 R)
• M7: 4,153,286 km (0.094 R)
• M8: 4,630,952 km (0.091 R)
• M9: 5,696,986 km (0.073 R)
• M10: 6,046,746 km (0.099 R)
• M11: 6,747,014 km (0.088 R)
• M12: 10,498,479 km (0.09 R)
• M13: 10,848,389 km (0.076 R)
• M14: 12,782,091 km (0.078 R)
• M15: 14,501,120 km (0.117 R)
• M16: 18,308,685 km (0.057 R)
• M17: 20,217,105 km (0.075 R)
• M18: 22,254,478 km (0.102 R)
• M19: 25,983,953 km (0.11 R)
• M20: 28,614,333 km (0.068 R)
• M21: 30,228,045 km (0.12 R)
• M22: 33,510,222 km (0.1 R)
• M23: 49,020,829 km (0.1 R)
• M24: 51,494,729 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 261.1

Radius: 7.3

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 12.65 AU - 14.65 AU

Year: 17725 Days

Day: 23.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 91,994,236 km

• M1: 90,806 km (0.112 R)
• M2: 397,033 km (0.115 R)
• M3: 646,712 km (0.106 R)
• M4: 963,410 km (0.104 R)
• M5: 1,983,967 km (0.088 R)
• M6: 2,344,797 km (0.108 R)
• M7: 3,104,754 km (0.108 R)
• M8: 4,751,827 km (0.075 R)
• M9: 5,166,512 km (0.108 R)
• M10: 5,536,168 km (0.079 R)
• M11: 6,673,411 km (0.069 R)
• M12: 6,990,559 km (0.052 R)
• M13: 8,002,888 km (0.098 R)
• M14: 8,452,429 km (0.093 R)
• M15: 11,680,452 km (0.068 R)
• M16: 14,173,650 km (0.098 R)
• M17: 15,786,764 km (0.071 R)
• M18: 20,763,736 km (0.113 R)
• M19: 23,559,421 km (0.059 R)
• M20: 24,388,642 km (0.084 R)
• M21: 25,142,017 km (0.114 R)
• M22: 30,638,242 km (0.099 R)
• M23: 32,183,738 km (0.065 R)
• M24: 35,190,655 km (0.119 R)
• M25: 39,014,227 km (0.109 R)
• M26: 43,929,714 km (0.067 R)
• M27: 47,766,451 km (0.118 R)
• M28: 48,500,677 km (0.118 R)
• M29: 49,541,130 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.8

Radius: 3.6

Gravity: 13.87 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 12.71 AU - 14.59 AU

Year: 17725 Days

Day: 21.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 91,994,236 km

• M1: 46,824 km (0.093 R)
• M2: 162,762 km (0.077 R)
• M3: 311,014 km (0.055 R)
• M4: 443,109 km (0.063 R)
• M5: 1,369,569 km (0.116 R)
• M6: 4,796,706 km (0.101 R)
• M7: 5,327,629 km (0.044 R)
• M8: 5,966,412 km (0.097 R)
• M9: 6,322,305 km (0.097 R)
• M10: 8,186,893 km (0.044 R)
• M11: 8,536,952 km (0.068 R)
• M12: 11,113,177 km (0.065 R)
• M13: 11,380,209 km (0.079 R)
• M14: 15,249,708 km (0.043 R)
• M15: 16,596,537 km (0.098 R)
• M16: 23,469,363 km (0.108 R)
• M17: 24,712,970 km (0.093 R)
• M18: 29,107,258 km (0.118 R)
• M19: 29,818,596 km (0.087 R)
• M20: 31,275,828 km (0.111 R)
• M21: 37,222,493 km (0.051 R)
• M22: 40,021,769 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 543.2

Radius: 7.4

Gravity: 9.92 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 12.81 AU - 19.59 AU

Year: 22917 Days

Day: 23.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 91,994,236 km

• M1: 117,285 km (0.112 R)
• M2: 2,860,162 km (0.034 R)
• M3: 3,567,311 km (0.104 R)
• M4: 4,487,637 km (0.106 R)
• M5: 5,597,354 km (0.069 R)
• M6: 7,110,985 km (0.1 R)
• M7: 7,395,520 km (0.081 R)
• M8: 12,356,186 km (0.047 R)
• M9: 16,563,925 km (0.079 R)
• M10: 18,096,555 km (0.095 R)
• M11: 20,189,429 km (0.094 R)
• M12: 35,946,573 km (0.076 R)
• M13: 36,645,046 km (0.073 R)
• M14: 39,825,945 km (0.06 R)
• M15: 40,123,944 km (0.09 R)
• M16: 54,760,001 km (0.098 R)
• M17: 56,431,458 km (0.116 R)
• M18: 61,054,631 km (0.11 R)
• M19: 62,449,182 km (0.114 R)
• M20: 66,132,432 km (0.037 R)

Planet 8 - Ice Giant

Semi-Major Axis: 20.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 445.2

Radius: 7

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 16.23 AU - 25.07 AU

Year: 32981 Days

Day: 19 Hours

Environment

Temp: -206 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 91,994,236 km

• M1: 87,066 km (0.117 R)
• M2: 605,423 km (0.089 R)
• M3: 987,795 km (0.097 R)
• M4: 1,739,973 km (0.076 R)
• M5: 2,305,453 km (0.09 R)
• M6: 3,731,270 km (0.113 R)
• M7: 3,960,454 km (0.085 R)
• M8: 4,630,054 km (0.045 R)
• M9: 8,406,353 km (0.115 R)
• M10: 11,234,202 km (0.091 R)
• M11: 12,861,378 km (0.067 R)
• M12: 13,925,467 km (0.052 R)
• M13: 16,055,143 km (0.09 R)
• M14: 18,487,006 km (0.111 R)
• M15: 20,138,117 km (0.108 R)
• M16: 22,310,578 km (0.071 R)
• M17: 23,068,141 km (0.062 R)
• M18: 24,634,581 km (0.082 R)
• M19: 29,113,242 km (0.049 R)
• M20: 31,476,290 km (0.104 R)
• M21: 39,015,723 km (0.062 R)
• M22: 44,206,919 km (0.115 R)
• M23: 49,475,008 km (0.097 R)
• M24: 50,761,699 km (0.094 R)
• M25: 59,984,258 km (0.039 R)
• M26: 62,719,206 km (0.094 R)
• M27: 65,976,850 km (0.086 R)
• M28: 68,436,388 km (0.104 R)
• M29: 74,731,018 km (0.103 R)
• M30: 80,893,553 km (0.109 R)
• M31: 81,655,006 km (0.099 R)
• M32: 87,120,115 km (0.047 R)

Kuiper Belt

Range: 31.2 - 46.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 17,788 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit