🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.56 AU - 0.84 AU

Year: 249 Days

Day: 30.5 Hours

Environment

Temp: 22 °C

Axial Tilt: 34.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.69 AU - 1.73 AU

Year: 949 Days

Day: 47 Hours

Environment

Temp: -94 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.7 AU - 2.02 AU

Year: 1077 Days

Day: 26 Hours

Environment

Temp: -115 °C

Axial Tilt: 26.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.76 AU - 2.36 AU

Year: 1255 Days

Day: 20.5 Hours

Environment

Temp: -108 °C

Axial Tilt: 24.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.9 AU - 2.64 AU

Year: 1452 Days

Day: 18.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.6

Radius: 10

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.73 AU - 7.51 AU

Year: 7232 Days

Day: 14.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 101,115,140 km

• M1: 130,300 km (0.109 R)
• M2: 836,252 km (0.063 R)
• M3: 1,354,459 km (0.038 R)
• M4: 1,840,802 km (0.106 R)
• M5: 2,456,547 km (0.056 R)
• M6: 3,511,361 km (0.094 R)
• M7: 4,819,595 km (0.119 R)
• M8: 5,988,552 km (0.092 R)
• M9: 6,397,553 km (0.05 R)
• M10: 6,887,785 km (0.118 R)
• M11: 7,469,122 km (0.078 R)
• M12: 8,330,357 km (0.089 R)
• M13: 9,724,610 km (0.102 R)
• M14: 11,622,707 km (0.072 R)
• M15: 15,640,757 km (0.086 R)
• M16: 17,514,470 km (0.082 R)
• M17: 18,352,816 km (0.105 R)
• M18: 19,280,622 km (0.106 R)
• M19: 21,770,529 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 496.2

Radius: 3.2

Gravity: 48.46 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 10.37 AU - 12.05 AU

Year: 15936 Days

Day: 15.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 101,115,140 km

• M1: 40,541 km (0.087 R)
• M2: 194,028 km (0.104 R)
• M3: 455,226 km (0.103 R)
• M4: 913,594 km (0.118 R)
• M5: 1,024,446 km (0.119 R)
• M6: 1,234,033 km (0.094 R)
• M7: 1,427,313 km (0.118 R)
• M8: 2,054,577 km (0.115 R)
• M9: 2,732,704 km (0.08 R)
• M10: 3,909,890 km (0.057 R)
• M11: 4,870,907 km (0.088 R)
• M12: 5,246,846 km (0.06 R)
• M13: 5,940,980 km (0.098 R)
• M14: 7,332,390 km (0.116 R)
• M15: 7,871,242 km (0.091 R)
• M16: 9,593,263 km (0.082 R)
• M17: 9,965,462 km (0.101 R)
• M18: 10,738,584 km (0.068 R)
• M19: 11,491,360 km (0.08 R)
• M20: 13,166,258 km (0.051 R)
• M21: 13,758,815 km (0.089 R)
• M22: 16,913,685 km (0.11 R)
• M23: 17,144,814 km (0.061 R)
• M24: 18,494,635 km (0.099 R)
• M25: 19,999,291 km (0.106 R)
• M26: 21,403,566 km (0.098 R)
• M27: 22,966,116 km (0.057 R)
• M28: 23,344,598 km (0.071 R)
• M29: 25,500,453 km (0.106 R)
• M30: 25,906,312 km (0.103 R)
• M31: 28,867,752 km (0.115 R)
• M32: 32,047,155 km (0.107 R)
• M33: 33,720,856 km (0.099 R)
• M34: 40,173,611 km (0.091 R)
• M35: 42,117,485 km (0.111 R)
• M36: 43,688,113 km (0.102 R)
• M37: 51,805,144 km (0.116 R)
• M38: 54,105,511 km (0.089 R)
• M39: 54,439,563 km (0.102 R)
• M40: 58,556,496 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 835.5

Radius: 6.6

Gravity: 19.18 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 12.45 AU - 14.59 AU

Year: 21108 Days

Day: 16.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 101,115,140 km

• M1: 82,129 km (0.104 R)
• M2: 420,520 km (0.086 R)
• M3: 786,286 km (0.114 R)
• M4: 1,133,353 km (0.079 R)
• M5: 2,114,267 km (0.114 R)
• M6: 2,378,008 km (0.11 R)
• M7: 3,080,220 km (0.117 R)
• M8: 3,630,142 km (0.117 R)
• M9: 4,109,005 km (0.083 R)
• M10: 5,270,632 km (0.059 R)
• M11: 7,011,951 km (0.072 R)
• M12: 7,351,838 km (0.08 R)
• M13: 8,064,821 km (0.068 R)
• M14: 8,384,063 km (0.057 R)
• M15: 9,568,429 km (0.095 R)
• M16: 9,986,855 km (0.106 R)
• M17: 10,605,741 km (0.102 R)
• M18: 12,404,207 km (0.074 R)
• M19: 14,165,572 km (0.092 R)
• M20: 15,920,804 km (0.071 R)
• M21: 18,633,013 km (0.072 R)
• M22: 18,910,816 km (0.025 R)
• M23: 19,856,873 km (0.117 R)
• M24: 20,933,380 km (0.106 R)
• M25: 22,673,053 km (0.119 R)
• M26: 23,202,480 km (0.031 R)
• M27: 28,589,200 km (0.058 R)
• M28: 29,960,265 km (0.088 R)
• M29: 33,510,671 km (0.12 R)
• M30: 42,703,759 km (0.104 R)
• M31: 44,328,243 km (0.092 R)
• M32: 49,625,653 km (0.081 R)
• M33: 65,212,405 km (0.114 R)
• M34: 68,237,872 km (0.11 R)
• M35: 73,409,321 km (0.097 R)
• M36: 73,870,980 km (0.085 R)
• M37: 74,102,557 km (0.055 R)
• M38: 75,267,625 km (0.1 R)
• M39: 81,523,210 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 813.1

Radius: 5.3

Gravity: 28.95 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 16.29 AU - 16.45 AU

Year: 28122 Days

Day: 19.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 101,115,140 km

• M1: 67,169 km (0.078 R)
• M2: 544,985 km (0.052 R)
• M3: 962,214 km (0.086 R)
• M4: 1,721,871 km (0.06 R)
• M5: 2,032,885 km (0.036 R)
• M6: 2,356,166 km (0.059 R)
• M7: 3,134,973 km (0.079 R)
• M8: 4,002,641 km (0.094 R)
• M9: 5,184,314 km (0.102 R)
• M10: 5,654,500 km (0.1 R)
• M11: 8,556,849 km (0.08 R)
• M12: 12,925,854 km (0.096 R)
• M13: 14,855,817 km (0.117 R)
• M14: 18,779,470 km (0.095 R)
• M15: 19,578,621 km (0.08 R)
• M16: 23,456,348 km (0.105 R)
• M17: 38,255,766 km (0.098 R)
• M18: 42,017,554 km (0.058 R)
• M19: 42,525,738 km (0.114 R)
• M20: 52,779,326 km (0.101 R)
• M21: 55,577,703 km (0.067 R)
• M22: 56,394,957 km (0.072 R)
• M23: 57,220,288 km (0.084 R)
• M24: 59,318,847 km (0.115 R)
• M25: 64,338,903 km (0.088 R)
• M26: 67,760,954 km (0.077 R)
• M27: 91,437,809 km (0.07 R)
• M28: 96,635,737 km (0.11 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 19,365 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit