🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.54 AU - 0.62 AU

Year: 159 Days

Day: 36.8 Hours

Environment

Temp: 170 °C

Axial Tilt: 36 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.67 AU - 0.95 AU

Year: 262 Days

Day: 47.8 Hours

Environment

Temp: 111 °C

Axial Tilt: 32.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.14 AU - 1.48 AU

Year: 540 Days

Day: 21.5 Hours

Environment

Temp: -11 °C

Axial Tilt: 34.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 63,567,134 km

• M1: 579,393 km (0.091 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.54 AU - 3.8 AU

Year: 2530 Days

Day: 26 Hours

Environment

Temp: -120 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,567,134 km

• M1: 942,915 km (0.114 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.75 AU - 5.61 AU

Year: 3644 Days

Day: 34.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,567,134 km

• M1: 1,550,283 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557

Radius: 9.2

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 5.09 AU - 7.09 AU

Year: 5409 Days

Day: 12.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 63,567,134 km

• M1: 117,434 km (0.073 R)
• M2: 455,974 km (0.083 R)
• M3: 770,878 km (0.119 R)
• M4: 2,036,476 km (0.08 R)
• M5: 2,703,982 km (0.102 R)
• M6: 3,305,215 km (0.073 R)
• M7: 4,594,151 km (0.09 R)
• M8: 5,337,951 km (0.088 R)
• M9: 6,159,842 km (0.041 R)
• M10: 6,796,830 km (0.08 R)
• M11: 8,581,532 km (0.094 R)
• M12: 8,893,593 km (0.091 R)
• M13: 10,003,460 km (0.112 R)
• M14: 10,481,276 km (0.114 R)
• M15: 14,425,872 km (0.108 R)
• M16: 15,490,411 km (0.054 R)
• M17: 16,307,813 km (0.117 R)
• M18: 17,030,970 km (0.106 R)
• M19: 18,541,310 km (0.12 R)
• M20: 20,276,047 km (0.076 R)
• M21: 22,189,254 km (0.089 R)
• M22: 22,704,319 km (0.115 R)
• M23: 25,081,729 km (0.058 R)
• M24: 25,560,292 km (0.113 R)
• M25: 29,522,691 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.9

Radius: 12.7

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 9.32 AU - 9.82 AU

Year: 10655 Days

Day: 9.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,567,134 km

• M1: 157,975 km (0.12 R)
• M2: 762,201 km (0.099 R)
• M3: 2,914,466 km (0.098 R)
• M4: 4,447,246 km (0.12 R)
• M5: 6,011,590 km (0.071 R)
• M6: 13,932,947 km (0.054 R)
• M7: 17,293,215 km (0.116 R)
• M8: 21,882,877 km (0.111 R)
• M9: 27,320,910 km (0.11 R)
• M10: 31,894,565 km (0.036 R)
• M11: 37,768,974 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.3

Radius: 10.5

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 11.07 AU - 13.19 AU

Year: 15204 Days

Day: 9.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,567,134 km

• M1: 130,599 km (0.11 R)
• M2: 498,909 km (0.098 R)
• M3: 1,077,703 km (0.102 R)
• M4: 2,229,607 km (0.043 R)
• M5: 2,951,566 km (0.116 R)
• M6: 5,787,194 km (0.117 R)
• M7: 6,484,918 km (0.099 R)
• M8: 10,782,566 km (0.079 R)
• M9: 13,099,238 km (0.116 R)
• M10: 14,301,108 km (0.037 R)
• M11: 15,192,711 km (0.089 R)
• M12: 18,090,272 km (0.106 R)
• M13: 18,519,917 km (0.098 R)
• M14: 19,132,820 km (0.062 R)
• M15: 19,578,771 km (0.078 R)
• M16: 23,604,150 km (0.101 R)
• M17: 24,533,452 km (0.088 R)
• M18: 27,921,246 km (0.079 R)
• M19: 30,025,041 km (0.09 R)
• M20: 30,749,244 km (0.053 R)
• M21: 38,361,831 km (0.072 R)
• M22: 52,168,667 km (0.106 R)
• M23: 57,541,624 km (0.116 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.2

Radius: 11.6

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 10.83 AU - 14.07 AU

Year: 15810 Days

Day: 10.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 63,567,134 km

• M1: 144,212 km (0.11 R)
• M2: 774,618 km (0.101 R)
• M3: 1,311,225 km (0.107 R)
• M4: 2,444,280 km (0.105 R)
• M5: 2,981,785 km (0.119 R)
• M6: 3,383,006 km (0.116 R)
• M7: 4,547,476 km (0.069 R)
• M8: 8,656,780 km (0.079 R)
• M9: 11,222,832 km (0.113 R)
• M10: 13,981,118 km (0.041 R)
• M11: 14,469,405 km (0.063 R)
• M12: 17,005,089 km (0.071 R)
• M13: 20,262,882 km (0.07 R)
• M14: 20,708,684 km (0.044 R)
• M15: 21,252,173 km (0.117 R)
• M16: 22,367,874 km (0.091 R)
• M17: 24,014,497 km (0.084 R)
• M18: 24,715,513 km (0.1 R)
• M19: 28,761,836 km (0.108 R)
• M20: 38,410,450 km (0.12 R)
• M21: 40,908,435 km (0.068 R)
• M22: 45,765,729 km (0.074 R)
• M23: 46,843,432 km (0.103 R)
• M24: 51,323,589 km (0.09 R)
• M25: 55,384,572 km (0.107 R)

Kuiper Belt

Range: 30.5 - 57.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 178 - 15,695 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit