🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.83 AU - 1.03 AU

Year: 318 Days

Day: 27.6 Hours

Environment

Temp: 85 °C

Axial Tilt: 9.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 58,991,368 km

• M1: 90,806 km (0.118 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.01 AU - 1.05 AU

Year: 371 Days

Day: 31.8 Hours

Environment

Temp: 100 °C

Axial Tilt: 14.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.15 AU - 3.09 AU

Year: 1504 Days

Day: 35.4 Hours

Environment

Temp: -80 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.53 AU - 2.71 AU

Year: 1504 Days

Day: 41.8 Hours

Environment

Temp: -91 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.91 AU - 5.61 AU

Year: 3684 Days

Day: 16.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.82

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 4.42 AU - 5.54 AU

Year: 3943 Days

Day: 38.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.3

Radius: 10.3

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 4.75 AU - 5.97 AU

Year: 4402 Days

Day: 10.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,991,368 km

• M1: 128,505 km (0.076 R)
• M2: 601,234 km (0.117 R)
• M3: 1,363,285 km (0.06 R)
• M4: 2,082,702 km (0.105 R)
• M5: 2,713,107 km (0.099 R)
• M6: 3,238,046 km (0.09 R)
• M7: 5,306,386 km (0.115 R)
• M8: 6,129,922 km (0.096 R)
• M9: 6,452,455 km (0.071 R)
• M10: 10,499,227 km (0.041 R)
• M11: 11,929,233 km (0.106 R)
• M12: 13,485,201 km (0.068 R)
• M13: 14,032,579 km (0.12 R)
• M14: 18,349,675 km (0.064 R)
• M15: 19,084,200 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.4

Radius: 9.9

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 8.05 AU - 9.01 AU

Year: 8838 Days

Day: 14 Hours

Environment

Temp: -162 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,991,368 km

• M1: 232,475 km (0.098 R)
• M2: 732,282 km (0.084 R)
• M3: 1,144,573 km (0.096 R)
• M4: 1,588,879 km (0.04 R)
• M5: 1,926,970 km (0.085 R)
• M6: 2,674,960 km (0.044 R)
• M7: 3,032,349 km (0.078 R)
• M8: 3,699,705 km (0.094 R)
• M9: 4,275,208 km (0.116 R)
• M10: 5,417,537 km (0.097 R)
• M11: 6,228,358 km (0.115 R)
• M12: 6,716,496 km (0.079 R)
• M13: 7,117,867 km (0.084 R)
• M14: 7,848,802 km (0.105 R)
• M15: 8,377,182 km (0.115 R)
• M16: 9,641,732 km (0.093 R)
• M17: 10,633,716 km (0.085 R)
• M18: 11,383,052 km (0.059 R)
• M19: 12,490,674 km (0.086 R)
• M20: 13,324,832 km (0.065 R)
• M21: 13,726,652 km (0.094 R)
• M22: 18,911,116 km (0.084 R)
• M23: 20,537,544 km (0.069 R)
• M24: 24,835,341 km (0.109 R)
• M25: 25,269,324 km (0.096 R)
• M26: 38,413,592 km (0.079 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.5

Radius: 14.6

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 9.24 AU - 10.86 AU

Year: 11303 Days

Day: 14.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 58,991,368 km

• M1: 181,612 km (0.05 R)
• M2: 666,309 km (0.108 R)
• M3: 1,203,365 km (0.082 R)
• M4: 2,037,224 km (0.119 R)
• M5: 2,660,000 km (0.119 R)
• M6: 3,233,558 km (0.065 R)
• M7: 5,469,448 km (0.074 R)
• M8: 5,980,923 km (0.071 R)
• M9: 6,890,777 km (0.079 R)
• M10: 8,594,697 km (0.103 R)
• M11: 10,289,790 km (0.094 R)
• M12: 11,596,827 km (0.098 R)
• M13: 14,129,818 km (0.085 R)
• M14: 15,239,685 km (0.096 R)
• M15: 17,012,419 km (0.085 R)
• M16: 18,268,294 km (0.107 R)
• M17: 18,754,935 km (0.113 R)
• M18: 20,788,719 km (0.071 R)
• M19: 21,949,748 km (0.083 R)
• M20: 25,190,935 km (0.08 R)
• M21: 33,084,317 km (0.052 R)
• M22: 33,929,994 km (0.062 R)
• M23: 40,670,126 km (0.104 R)
• M24: 41,222,890 km (0.114 R)
• M25: 42,626,567 km (0.091 R)
• M26: 43,484,062 km (0.119 R)
• M27: 48,252,793 km (0.096 R)
• M28: 49,028,009 km (0.086 R)
• M29: 51,565,040 km (0.119 R)
• M30: 52,212,649 km (0.068 R)
• M31: 53,029,902 km (0.07 R)
• M32: 54,188,388 km (0.093 R)
• M33: 58,639,224 km (0.085 R)

Kuiper Belt

Range: 30.9 - 50.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 526 - 17,788 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit