🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.45 AU - 0.65 AU

Year: 143 Days

Day: 40.2 Hours

Environment

Temp: 192 °C

Axial Tilt: 31.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.56 AU - 0.66 AU

Year: 167 Days

Day: 16.1 Hours

Environment

Temp: 169 °C

Axial Tilt: 4.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.8 AU - 0.94 AU

Year: 285 Days

Day: 22.6 Hours

Environment

Temp: 141 °C

Axial Tilt: 45.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.71 AU - 1.15 AU

Year: 315 Days

Day: 47.5 Hours

Environment

Temp: 141 °C

Axial Tilt: 34.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 60,238,198 km

• M1: 27,526 km (0.089 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.84 AU - 1.36 AU

Year: 405 Days

Day: 31.4 Hours

Environment

Temp: 28 °C

Axial Tilt: 28.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4.1 AU - 4.92 AU

Year: 3366 Days

Day: 22.3 Hours

Environment

Temp: -123 °C

Axial Tilt: 41.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.6

Radius: 9.9

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.03 AU - 9.23 AU

Year: 9696 Days

Day: 5.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,238,198 km

• M1: 123,119 km (0.092 R)
• M2: 686,654 km (0.095 R)
• M3: 1,011,880 km (0.094 R)
• M4: 1,407,566 km (0.086 R)
• M5: 2,414,061 km (0.061 R)
• M6: 3,237,448 km (0.037 R)
• M7: 3,565,516 km (0.115 R)
• M8: 4,685,705 km (0.104 R)
• M9: 5,432,048 km (0.119 R)
• M10: 6,837,670 km (0.085 R)
• M11: 8,635,836 km (0.099 R)
• M12: 9,141,477 km (0.119 R)
• M13: 10,634,165 km (0.112 R)
• M14: 11,165,985 km (0.079 R)
• M15: 16,396,974 km (0.04 R)
• M16: 17,107,265 km (0.08 R)
• M17: 20,596,784 km (0.076 R)
• M18: 22,429,209 km (0.091 R)
• M19: 25,548,923 km (0.096 R)
• M20: 27,843,006 km (0.064 R)
• M21: 28,299,429 km (0.078 R)
• M22: 29,888,607 km (0.085 R)
• M23: 33,244,088 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.2

Radius: 8.2

Gravity: 14.85 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 7.45 AU - 11.99 AU

Year: 10651 Days

Day: 5.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 60,238,198 km

• M1: 102,325 km (0.085 R)
• M2: 389,852 km (0.114 R)
• M3: 2,062,057 km (0.052 R)
• M4: 2,654,465 km (0.118 R)
• M5: 4,058,441 km (0.11 R)
• M6: 4,383,816 km (0.098 R)
• M7: 8,288,320 km (0.089 R)
• M8: 9,059,797 km (0.069 R)
• M9: 10,037,120 km (0.104 R)
• M10: 10,801,116 km (0.093 R)
• M11: 12,079,130 km (0.066 R)
• M12: 13,133,496 km (0.101 R)
• M13: 14,655,954 km (0.106 R)
• M14: 15,141,848 km (0.087 R)
• M15: 17,969,098 km (0.068 R)
• M16: 21,306,028 km (0.033 R)
• M17: 29,724,199 km (0.036 R)
• M18: 35,835,422 km (0.116 R)
• M19: 40,932,969 km (0.091 R)
• M20: 41,481,545 km (0.098 R)
• M21: 46,345,121 km (0.097 R)
• M22: 51,734,983 km (0.098 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.8

Radius: 13.3

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 10.77 AU - 12.39 AU

Year: 13850 Days

Day: 9.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 60,238,198 km

• M1: 165,455 km (0.108 R)
• M2: 868,116 km (0.098 R)
• M3: 1,600,398 km (0.069 R)
• M4: 2,170,964 km (0.105 R)
• M5: 2,968,171 km (0.117 R)
• M6: 4,680,020 km (0.113 R)
• M7: 5,317,606 km (0.075 R)
• M8: 6,127,828 km (0.107 R)
• M9: 6,563,008 km (0.111 R)
• M10: 7,319,824 km (0.056 R)
• M11: 8,858,139 km (0.115 R)
• M12: 9,364,378 km (0.066 R)
• M13: 9,836,509 km (0.119 R)
• M14: 11,231,958 km (0.069 R)
• M15: 14,413,306 km (0.044 R)
• M16: 18,805,350 km (0.088 R)
• M17: 21,125,613 km (0.116 R)
• M18: 22,123,580 km (0.082 R)
• M19: 25,407,403 km (0.098 R)
• M20: 27,271,243 km (0.109 R)
• M21: 36,797,785 km (0.047 R)
• M22: 38,508,437 km (0.098 R)
• M23: 39,723,471 km (0.116 R)
• M24: 42,514,817 km (0.087 R)
• M25: 43,232,588 km (0.107 R)
• M26: 45,583,967 km (0.101 R)
• M27: 49,268,862 km (0.112 R)
• M28: 50,700,514 km (0.044 R)

Kuiper Belt

Range: 31.2 - 48.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 424 - 19,501 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit