🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.1 AU - 1.1 AU

Year: 437 Days

Day: 43.8 Hours

Environment

Temp: 4 °C

Axial Tilt: 25.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.46 AU - 1.48 AU

Year: 675 Days

Day: 23.8 Hours

Environment

Temp: -54 °C

Axial Tilt: 23.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.59 AU - 4.17 AU

Year: 2354 Days

Day: 27 Hours

Environment

Temp: -117 °C

Axial Tilt: 1.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 99,762,460 km

• M1: 211,681 km (0.101 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.6 AU - 3.62 AU

Year: 2598 Days

Day: 21.6 Hours

Environment

Temp: -124 °C

Axial Tilt: 173.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957

Radius: 10

Gravity: 9.57 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 7.16 AU - 7.24 AU

Year: 7317 Days

Day: 12 Hours

Environment

Temp: -160 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 99,762,460 km

• M1: 124,316 km (0.084 R)
• M2: 531,970 km (0.12 R)
• M3: 959,521 km (0.117 R)
• M4: 1,331,271 km (0.067 R)
• M5: 3,361,913 km (0.079 R)
• M6: 4,104,517 km (0.093 R)
• M7: 4,600,284 km (0.028 R)
• M8: 5,260,160 km (0.112 R)
• M9: 6,547,300 km (0.066 R)
• M10: 6,918,453 km (0.108 R)
• M11: 7,991,369 km (0.05 R)
• M12: 8,329,759 km (0.07 R)
• M13: 13,115,245 km (0.112 R)
• M14: 14,377,552 km (0.08 R)
• M15: 15,587,649 km (0.118 R)
• M16: 16,453,971 km (0.073 R)
• M17: 20,086,805 km (0.036 R)
• M18: 21,353,899 km (0.111 R)
• M19: 23,182,135 km (0.061 R)
• M20: 23,872,080 km (0.074 R)
• M21: 25,383,767 km (0.108 R)
• M22: 26,024,345 km (0.091 R)
• M23: 27,147,526 km (0.1 R)
• M24: 28,892,585 km (0.092 R)
• M25: 29,994,971 km (0.081 R)
• M26: 32,497,445 km (0.045 R)
• M27: 33,252,764 km (0.073 R)
• M28: 33,689,740 km (0.076 R)
• M29: 37,441,205 km (0.047 R)
• M30: 39,356,507 km (0.109 R)
• M31: 40,214,600 km (0.113 R)
• M32: 41,968,336 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.4

Radius: 14

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 6.52 AU - 9.08 AU

Year: 8251 Days

Day: 9.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 99,762,460 km

• M1: 174,282 km (0.104 R)
• M2: 1,491,192 km (0.046 R)
• M3: 1,993,990 km (0.075 R)
• M4: 3,118,068 km (0.098 R)
• M5: 3,654,826 km (0.051 R)
• M6: 4,152,238 km (0.09 R)
• M7: 5,029,480 km (0.086 R)
• M8: 5,747,101 km (0.086 R)
• M9: 6,586,944 km (0.111 R)
• M10: 7,328,500 km (0.11 R)
• M11: 9,710,847 km (0.044 R)
• M12: 11,334,881 km (0.12 R)
• M13: 11,942,099 km (0.119 R)
• M14: 12,613,644 km (0.097 R)
• M15: 13,221,759 km (0.099 R)
• M16: 14,543,755 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 409

Radius: 5.2

Gravity: 15.13 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 9.56 AU - 15.34 AU

Year: 16638 Days

Day: 21.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 99,762,460 km

• M1: 68,516 km (0.098 R)
• M2: 709,543 km (0.112 R)
• M3: 1,593,068 km (0.118 R)
• M4: 2,173,956 km (0.107 R)
• M5: 5,610,818 km (0.104 R)
• M6: 5,904,478 km (0.094 R)
• M7: 6,562,859 km (0.087 R)
• M8: 13,818,954 km (0.11 R)
• M9: 15,396,613 km (0.104 R)
• M10: 16,637,228 km (0.103 R)
• M11: 24,234,257 km (0.103 R)
• M12: 35,198,883 km (0.068 R)
• M13: 39,037,864 km (0.108 R)
• M14: 44,867,842 km (0.044 R)
• M15: 54,659,920 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 898.3

Radius: 6.2

Gravity: 23.37 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 13.49 AU - 20.23 AU

Year: 26220 Days

Day: 16.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 99,762,460 km

• M1: 77,043 km (0.071 R)
• M2: 322,383 km (0.117 R)
• M3: 935,884 km (0.113 R)
• M4: 1,289,982 km (0.104 R)
• M5: 1,730,099 km (0.089 R)
• M6: 2,017,477 km (0.097 R)
• M7: 2,242,023 km (0.069 R)
• M8: 2,822,762 km (0.088 R)
• M9: 3,594,687 km (0.112 R)
• M10: 4,099,730 km (0.091 R)
• M11: 4,689,444 km (0.104 R)
• M12: 5,945,019 km (0.101 R)
• M13: 6,797,877 km (0.117 R)
• M14: 7,150,629 km (0.109 R)
• M15: 7,568,605 km (0.055 R)
• M16: 8,226,088 km (0.039 R)
• M17: 9,591,467 km (0.04 R)
• M18: 11,032,693 km (0.118 R)
• M19: 14,667,323 km (0.048 R)
• M20: 17,026,781 km (0.082 R)
• M21: 17,961,319 km (0.114 R)
• M22: 19,627,689 km (0.099 R)
• M23: 20,342,917 km (0.082 R)
• M24: 21,825,133 km (0.107 R)
• M25: 29,392,541 km (0.117 R)
• M26: 31,283,308 km (0.094 R)
• M27: 39,658,695 km (0.105 R)
• M28: 42,978,571 km (0.039 R)
• M29: 57,696,159 km (0.066 R)
• M30: 61,080,511 km (0.065 R)
• M31: 67,087,764 km (0.065 R)
• M32: 70,826,962 km (0.066 R)
• M33: 73,720,933 km (0.075 R)
• M34: 83,138,717 km (0.094 R)
• M35: 86,901,403 km (0.091 R)
• M36: 87,448,034 km (0.06 R)
• M37: 91,903,956 km (0.074 R)
• M38: 95,053,739 km (0.119 R)
• M39: 95,924,997 km (0.062 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 18,454 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit