🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.7 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.35 AU - 1.43 AU

Year: 602 Days

Day: 28.8 Hours

Environment

Temp: -35 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 107,656,065 km

• M1: 35,305 km (0.109 R)
• M2: 167,998 km (0.077 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.65 AU - 1.93 AU

Year: 879 Days

Day: 46.4 Hours

Environment

Temp: -60 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 107,656,065 km

• M1: 38,147 km (0.052 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.81 AU - 1.83 AU

Year: 901 Days

Day: 16.7 Hours

Environment

Temp: -63 °C

Axial Tilt: 28.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.73 AU - 2.29 AU

Year: 1046 Days

Day: 19.6 Hours

Environment

Temp: -62 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.96 AU - 2.56 AU

Year: 1247 Days

Day: 23.3 Hours

Environment

Temp: -90 °C

Axial Tilt: 46 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.94 AU - 2.82 AU

Year: 1348 Days

Day: 23.8 Hours

Environment

Temp: -89 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 107,656,065 km

• M1: 63,130 km (0.088 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 3.39 AU - 5.15 AU

Year: 3239 Days

Day: 19.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 2.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.06 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 11.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.3

Radius: 13.2

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 10.87 AU - 12.81 AU

Year: 14955 Days

Day: 13.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 107,656,065 km

• M1: 165,455 km (0.079 R)
• M2: 621,430 km (0.119 R)
• M3: 1,465,311 km (0.077 R)
• M4: 2,128,479 km (0.064 R)
• M5: 2,542,266 km (0.03 R)
• M6: 5,344,384 km (0.058 R)
• M7: 7,239,639 km (0.042 R)
• M8: 8,593,201 km (0.055 R)
• M9: 9,115,597 km (0.106 R)
• M10: 11,113,027 km (0.094 R)
• M11: 13,112,852 km (0.089 R)
• M12: 13,665,765 km (0.099 R)
• M13: 20,083,664 km (0.09 R)
• M14: 21,955,731 km (0.111 R)
• M15: 25,295,205 km (0.104 R)
• M16: 27,926,931 km (0.073 R)
• M17: 28,382,755 km (0.105 R)
• M18: 31,713,253 km (0.055 R)
• M19: 37,185,094 km (0.092 R)
• M20: 38,014,913 km (0.109 R)
• M21: 43,103,784 km (0.101 R)
• M22: 45,889,895 km (0.082 R)
• M23: 54,609,955 km (0.069 R)
• M24: 65,972,212 km (0.042 R)
• M25: 66,984,691 km (0.04 R)
• M26: 67,596,995 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.9

Radius: 3.9

Gravity: 19.32 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 11.74 AU - 14.5 AU

Year: 17445 Days

Day: 24.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 107,656,065 km

• M1: 48,919 km (0.036 R)
• M2: 379,979 km (0.117 R)
• M3: 519,553 km (0.044 R)
• M4: 856,597 km (0.052 R)
• M5: 1,172,997 km (0.102 R)
• M6: 1,653,505 km (0.095 R)
• M7: 2,311,885 km (0.092 R)
• M8: 6,552,088 km (0.106 R)
• M9: 9,792,976 km (0.11 R)
• M10: 10,366,983 km (0.089 R)
• M11: 11,467,724 km (0.101 R)
• M12: 14,093,765 km (0.06 R)
• M13: 17,468,543 km (0.108 R)
• M14: 19,830,245 km (0.084 R)
• M15: 22,042,049 km (0.107 R)
• M16: 23,573,782 km (0.117 R)
• M17: 27,251,646 km (0.042 R)
• M18: 30,740,567 km (0.094 R)
• M19: 31,853,875 km (0.111 R)
• M20: 32,193,013 km (0.025 R)
• M21: 37,951,933 km (0.088 R)
• M22: 38,716,827 km (0.083 R)
• M23: 39,232,341 km (0.063 R)
• M24: 41,206,584 km (0.061 R)
• M25: 44,501,327 km (0.037 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 862.6

Radius: 7.9

Gravity: 13.82 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 17.04 AU - 20.62 AU

Year: 29995 Days

Day: 16.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 107,656,065 km

• M1: 98,735 km (0.096 R)
• M2: 704,905 km (0.119 R)
• M3: 1,458,729 km (0.118 R)
• M4: 1,966,913 km (0.101 R)
• M5: 2,409,124 km (0.118 R)
• M6: 3,060,772 km (0.108 R)
• M7: 3,524,526 km (0.062 R)
• M8: 4,325,772 km (0.107 R)
• M9: 5,033,220 km (0.108 R)
• M10: 5,285,592 km (0.057 R)
• M11: 6,140,993 km (0.093 R)
• M12: 8,890,751 km (0.04 R)
• M13: 10,499,377 km (0.115 R)
• M14: 10,982,578 km (0.095 R)
• M15: 13,143,669 km (0.063 R)
• M16: 16,847,263 km (0.111 R)
• M17: 17,605,575 km (0.107 R)
• M18: 18,189,156 km (0.106 R)
• M19: 19,808,254 km (0.087 R)
• M20: 22,076,158 km (0.086 R)
• M21: 33,177,367 km (0.117 R)
• M22: 33,620,326 km (0.079 R)
• M23: 33,917,876 km (0.08 R)
• M24: 35,585,743 km (0.108 R)
• M25: 39,910,318 km (0.068 R)
• M26: 41,086,158 km (0.03 R)
• M27: 48,062,953 km (0.08 R)
• M28: 52,326,942 km (0.098 R)
• M29: 57,047,502 km (0.102 R)
• M30: 63,620,833 km (0.098 R)
• M31: 68,034,868 km (0.052 R)
• M32: 69,470,110 km (0.112 R)
• M33: 81,954,949 km (0.108 R)
• M34: 85,501,616 km (0.067 R)
• M35: 98,871,776 km (0.113 R)
• M36: 101,021,198 km (0.049 R)
• M37: 102,263,309 km (0.105 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 214 - 16,248 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit