🌌 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: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.3 AU - 1.48 AU

Year: 513 Days

Day: 47.1 Hours

Environment

Temp: 143 °C

Axial Tilt: 138.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 101,644,436 km

• M1: 191,635 km (0.084 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.7 AU - 2.34 AU

Year: 899 Days

Day: 17.9 Hours

Environment

Temp: 9 °C

Axial Tilt: 17.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 101,644,436 km

• M1: 46,824 km (0.119 R)
• M2: 675,285 km (0.12 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.15 AU - 2.29 AU

Year: 1036 Days

Day: 38.9 Hours

Environment

Temp: -1 °C

Axial Tilt: 2.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 101,644,436 km

• M1: 480,359 km (0.087 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.78 AU - 5.36 AU

Year: 3060 Days

Day: 16.2 Hours

Environment

Temp: -86 °C

Axial Tilt: 7.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.71 AU - 5.87 AU

Year: 3283 Days

Day: 22.5 Hours

Environment

Temp: -94 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 101,644,436 km

• M1: 447,447 km (0.056 R)

Planet 6 - Terrestrial

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 7.31 AU - 8.89 AU

Year: 7220 Days

Day: 36.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 19.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 101,644,436 km

• M1: 306,676 km (0.111 R)

Asteroid Belt

Center: 8.62 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686

Radius: 10.4

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 7.45 AU - 10.81 AU

Year: 8640 Days

Day: 12.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 101,644,436 km

• M1: 129,402 km (0.1 R)
• M2: 514,018 km (0.078 R)
• M3: 1,021,604 km (0.056 R)
• M4: 2,221,229 km (0.073 R)
• M5: 2,566,202 km (0.079 R)
• M6: 3,626,252 km (0.104 R)
• M7: 4,690,342 km (0.095 R)
• M8: 5,047,133 km (0.102 R)
• M9: 5,518,665 km (0.115 R)
• M10: 7,665,245 km (0.111 R)
• M11: 8,119,873 km (0.09 R)
• M12: 9,404,919 km (0.085 R)
• M13: 10,617,559 km (0.076 R)
• M14: 12,318,038 km (0.099 R)
• M15: 12,770,273 km (0.111 R)
• M16: 15,392,723 km (0.103 R)
• M17: 16,454,120 km (0.111 R)
• M18: 19,169,770 km (0.038 R)
• M19: 20,163,699 km (0.051 R)
• M20: 22,005,697 km (0.104 R)
• M21: 23,609,985 km (0.097 R)
• M22: 24,308,158 km (0.059 R)
• M23: 25,837,647 km (0.076 R)
• M24: 30,913,802 km (0.118 R)
• M25: 32,815,191 km (0.084 R)
• M26: 33,904,712 km (0.066 R)
• M27: 37,671,137 km (0.116 R)
• M28: 40,084,600 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.4

Radius: 11.4

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 9.93 AU - 11.11 AU

Year: 10687 Days

Day: 7.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 101,644,436 km

• M1: 141,819 km (0.063 R)
• M2: 503,546 km (0.05 R)
• M3: 864,077 km (0.108 R)
• M4: 1,292,974 km (0.102 R)
• M5: 1,913,955 km (0.119 R)
• M6: 2,498,584 km (0.111 R)
• M7: 3,152,027 km (0.101 R)
• M8: 5,255,672 km (0.1 R)
• M9: 6,839,315 km (0.077 R)
• M10: 7,545,866 km (0.119 R)
• M11: 9,601,790 km (0.101 R)
• M12: 10,169,214 km (0.083 R)
• M13: 14,653,261 km (0.119 R)
• M14: 15,545,762 km (0.115 R)
• M15: 17,666,761 km (0.045 R)
• M16: 22,296,665 km (0.098 R)
• M17: 23,109,430 km (0.115 R)
• M18: 25,178,967 km (0.032 R)
• M19: 26,659,089 km (0.118 R)
• M20: 28,721,894 km (0.036 R)
• M21: 29,576,097 km (0.105 R)
• M22: 39,593,320 km (0.119 R)
• M23: 40,517,985 km (0.082 R)
• M24: 42,273,217 km (0.059 R)
• M25: 43,378,296 km (0.086 R)
• M26: 44,219,635 km (0.091 R)
• M27: 47,102,685 km (0.058 R)
• M28: 49,194,063 km (0.101 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.4

Radius: 11.1

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 9.68 AU - 12.52 AU

Year: 11583 Days

Day: 5.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 101,644,436 km

• M1: 138,079 km (0.077 R)
• M2: 767,437 km (0.101 R)
• M3: 1,152,203 km (0.119 R)
• M4: 1,884,185 km (0.073 R)
• M5: 2,298,870 km (0.041 R)
• M6: 4,061,732 km (0.112 R)
• M7: 4,916,684 km (0.049 R)
• M8: 10,754,142 km (0.086 R)
• M9: 11,133,373 km (0.092 R)
• M10: 14,235,733 km (0.026 R)
• M11: 16,266,225 km (0.037 R)
• M12: 18,252,436 km (0.082 R)
• M13: 20,067,956 km (0.098 R)
• M14: 21,399,826 km (0.108 R)
• M15: 21,827,975 km (0.093 R)
• M16: 23,416,555 km (0.109 R)
• M17: 24,517,595 km (0.114 R)
• M18: 26,038,856 km (0.07 R)
• M19: 28,437,508 km (0.072 R)
• M20: 34,132,998 km (0.114 R)
• M21: 35,547,596 km (0.067 R)
• M22: 39,382,537 km (0.11 R)
• M23: 45,146,543 km (0.113 R)
• M24: 46,420,369 km (0.082 R)
• M25: 48,009,547 km (0.081 R)
• M26: 48,449,066 km (0.117 R)
• M27: 49,933,974 km (0.106 R)

Planet 10 - Ice Giant

Semi-Major Axis: 21.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 633.1

Radius: 7.1

Gravity: 12.56 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 20.95 AU - 22.87 AU

Year: 32121 Days

Day: 22.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 101,644,436 km

• M1: 118,781 km (0.101 R)
• M2: 752,328 km (0.081 R)
• M3: 2,043,208 km (0.041 R)
• M4: 2,317,720 km (0.062 R)
• M5: 3,172,672 km (0.114 R)
• M6: 7,666,292 km (0.12 R)
• M7: 10,299,215 km (0.086 R)
• M8: 11,818,232 km (0.119 R)
• M9: 12,706,843 km (0.085 R)
• M10: 16,984,744 km (0.116 R)
• M11: 23,026,403 km (0.095 R)
• M12: 24,645,052 km (0.094 R)
• M13: 36,899,063 km (0.114 R)
• M14: 37,678,916 km (0.059 R)
• M15: 41,241,291 km (0.117 R)
• M16: 46,271,669 km (0.087 R)
• M17: 55,065,031 km (0.107 R)
• M18: 55,674,344 km (0.108 R)
• M19: 74,617,324 km (0.104 R)

Kuiper Belt

Range: 35 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 17,311 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit