🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.56

Radius: 1.19

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.57 AU - 0.65 AU

Year: 167 Days

Day: 32.2 Hours

Environment

Temp: 248 °C

Axial Tilt: 39.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.73 AU - 0.77 AU

Year: 227 Days

Day: 12.8 Hours

Environment

Temp: 215 °C

Axial Tilt: 45.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 79,410,484 km

• M1: 37,399 km (0.086 R)
• M2: 258,356 km (0.064 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.92 AU - 1.06 AU

Year: 345 Days

Day: 12.3 Hours

Environment

Temp: 115 °C

Axial Tilt: 24 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.16 AU - 3.52 AU

Year: 1674 Days

Day: 45.9 Hours

Environment

Temp: -82 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,410,484 km

• M1: 271,670 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.1

Radius: 13.6

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 8.26 AU - 10.62 AU

Year: 10147 Days

Day: 7.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 79,410,484 km

• M1: 170,542 km (0.066 R)
• M2: 692,040 km (0.04 R)
• M3: 1,187,657 km (0.057 R)
• M4: 1,683,275 km (0.089 R)
• M5: 2,354,970 km (0.103 R)
• M6: 3,435,216 km (0.106 R)
• M7: 3,940,857 km (0.078 R)
• M8: 4,409,547 km (0.119 R)
• M9: 5,799,161 km (0.038 R)
• M10: 8,722,603 km (0.079 R)
• M11: 11,659,209 km (0.053 R)
• M12: 13,720,668 km (0.05 R)
• M13: 14,480,326 km (0.055 R)
• M14: 15,002,273 km (0.082 R)
• M15: 16,153,279 km (0.106 R)
• M16: 18,937,894 km (0.11 R)
• M17: 19,483,776 km (0.073 R)
• M18: 21,773,072 km (0.115 R)
• M19: 22,545,596 km (0.077 R)
• M20: 25,724,850 km (0.11 R)
• M21: 26,880,493 km (0.109 R)
• M22: 29,295,153 km (0.103 R)
• M23: 37,770,171 km (0.046 R)
• M24: 39,641,641 km (0.106 R)
• M25: 41,052,797 km (0.098 R)
• M26: 42,364,471 km (0.097 R)
• M27: 43,568,585 km (0.108 R)
• M28: 48,614,670 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 12.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.5

Radius: 14

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 11.35 AU - 13.17 AU

Year: 15018 Days

Day: 14.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 79,410,484 km

• M1: 174,132 km (0.116 R)
• M2: 748,887 km (0.109 R)
• M3: 1,655,001 km (0.095 R)
• M4: 2,903,246 km (0.048 R)
• M5: 3,515,849 km (0.109 R)
• M6: 4,805,084 km (0.104 R)
• M7: 5,345,431 km (0.116 R)
• M8: 7,880,217 km (0.062 R)
• M9: 8,586,020 km (0.041 R)
• M10: 10,397,800 km (0.03 R)
• M11: 11,482,235 km (0.079 R)
• M12: 12,266,577 km (0.097 R)
• M13: 13,942,671 km (0.117 R)
• M14: 16,358,976 km (0.099 R)
• M15: 17,745,599 km (0.047 R)
• M16: 19,544,962 km (0.103 R)
• M17: 22,468,254 km (0.047 R)
• M18: 23,599,962 km (0.097 R)
• M19: 25,469,337 km (0.056 R)
• M20: 27,118,504 km (0.099 R)
• M21: 28,076,977 km (0.111 R)
• M22: 30,972,743 km (0.064 R)
• M23: 42,674,887 km (0.103 R)
• M24: 44,409,474 km (0.116 R)
• M25: 45,145,795 km (0.09 R)
• M26: 45,740,895 km (0.084 R)
• M27: 47,557,313 km (0.083 R)
• M28: 50,212,226 km (0.091 R)
• M29: 51,657,042 km (0.116 R)
• M30: 55,305,435 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 389.8

Radius: 5.8

Gravity: 11.59 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 17.66 AU - 19.72 AU

Year: 28268 Days

Day: 23.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 79,410,484 km

• M1: 72,405 km (0.066 R)
• M2: 490,083 km (0.101 R)
• M3: 987,944 km (0.027 R)
• M4: 1,297,014 km (0.092 R)
• M5: 1,795,174 km (0.092 R)
• M6: 2,192,955 km (0.053 R)
• M7: 3,358,472 km (0.068 R)
• M8: 3,835,839 km (0.05 R)
• M9: 6,292,535 km (0.115 R)
• M10: 6,969,615 km (0.054 R)
• M11: 7,694,267 km (0.099 R)
• M12: 7,946,639 km (0.058 R)
• M13: 8,204,546 km (0.094 R)
• M14: 9,636,646 km (0.097 R)
• M15: 9,870,916 km (0.079 R)
• M16: 13,128,560 km (0.114 R)
• M17: 13,344,130 km (0.086 R)
• M18: 14,457,886 km (0.104 R)
• M19: 16,201,449 km (0.096 R)
• M20: 18,347,431 km (0.094 R)
• M21: 19,534,939 km (0.073 R)
• M22: 21,460,712 km (0.091 R)
• M23: 25,573,008 km (0.028 R)
• M24: 26,022,400 km (0.117 R)
• M25: 26,936,742 km (0.118 R)
• M26: 27,168,768 km (0.05 R)
• M27: 36,433,963 km (0.098 R)
• M28: 39,040,706 km (0.111 R)
• M29: 44,137,655 km (0.105 R)
• M30: 60,651,016 km (0.057 R)
• M31: 61,650,778 km (0.115 R)
• M32: 63,682,916 km (0.119 R)
• M33: 65,340,311 km (0.107 R)
• M34: 78,226,372 km (0.099 R)

Kuiper Belt

Range: 31.4 - 53.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 377 - 19,296 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit