🌌 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: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.45 AU - 0.65 AU

Year: 147 Days

Day: 38 Hours

Environment

Temp: 217 °C

Axial Tilt: 37.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.27 AU - 1.79 AU

Year: 681 Days

Day: 20.9 Hours

Environment

Temp: -41 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.3 AU - 1.96 AU

Year: 749 Days

Day: 20 Hours

Environment

Temp: -40 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.54 AU - 2.12 AU

Year: 891 Days

Day: 46.3 Hours

Environment

Temp: -62 °C

Axial Tilt: 41 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.62 AU - 2.74 AU

Year: 1579 Days

Day: 44.3 Hours

Environment

Temp: -86 °C

Axial Tilt: 27.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,507,066 km

• M1: 53,556 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.9

Radius: 10.3

Gravity: 9.37 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 4.89 AU - 6.33 AU

Year: 4782 Days

Day: 13.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 62,507,066 km

• M1: 147,055 km (0.088 R)
• M2: 861,534 km (0.108 R)
• M3: 1,326,784 km (0.025 R)
• M4: 1,885,232 km (0.111 R)
• M5: 2,340,309 km (0.104 R)
• M6: 2,886,790 km (0.119 R)
• M7: 3,516,448 km (0.11 R)
• M8: 4,088,959 km (0.111 R)
• M9: 4,512,919 km (0.074 R)
• M10: 4,911,448 km (0.084 R)
• M11: 5,275,569 km (0.037 R)
• M12: 6,814,033 km (0.056 R)
• M13: 7,161,549 km (0.071 R)
• M14: 7,930,183 km (0.101 R)
• M15: 9,588,326 km (0.066 R)
• M16: 11,417,758 km (0.087 R)
• M17: 11,859,521 km (0.077 R)
• M18: 14,927,175 km (0.102 R)
• M19: 15,277,982 km (0.069 R)
• M20: 15,634,473 km (0.055 R)
• M21: 16,179,608 km (0.049 R)
• M22: 16,989,232 km (0.116 R)
• M23: 17,695,334 km (0.1 R)
• M24: 25,038,046 km (0.095 R)
• M25: 25,784,390 km (0.072 R)
• M26: 29,465,245 km (0.104 R)
• M27: 32,008,110 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.2

Radius: 8.3

Gravity: 12.56 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 7.59 AU - 10.93 AU

Year: 10141 Days

Day: 10.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,507,066 km

• M1: 103,223 km (0.044 R)
• M2: 889,808 km (0.028 R)
• M3: 1,337,106 km (0.083 R)
• M4: 2,303,059 km (0.083 R)
• M5: 2,944,834 km (0.1 R)
• M6: 3,570,602 km (0.116 R)
• M7: 4,827,972 km (0.084 R)
• M8: 5,557,112 km (0.077 R)
• M9: 5,948,161 km (0.076 R)
• M10: 11,490,762 km (0.108 R)
• M11: 17,027,678 km (0.072 R)
• M12: 19,748,265 km (0.047 R)
• M13: 22,123,730 km (0.101 R)
• M14: 22,566,988 km (0.081 R)
• M15: 25,160,118 km (0.056 R)
• M16: 27,637,758 km (0.115 R)
• M17: 30,056,606 km (0.109 R)
• M18: 40,351,782 km (0.105 R)
• M19: 44,714,205 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 431.1

Radius: 5.3

Gravity: 15.35 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 12.66 AU - 15.26 AU

Year: 18772 Days

Day: 21.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 62,507,066 km

• M1: 68,217 km (0.111 R)
• M2: 302,936 km (0.072 R)
• M3: 739,911 km (0.082 R)
• M4: 1,018,313 km (0.091 R)
• M5: 1,364,482 km (0.111 R)
• M6: 1,908,121 km (0.114 R)
• M7: 2,350,931 km (0.112 R)
• M8: 2,607,790 km (0.102 R)
• M9: 3,769,866 km (0.062 R)
• M10: 5,680,381 km (0.046 R)
• M11: 6,104,192 km (0.116 R)
• M12: 8,203,498 km (0.103 R)
• M13: 8,594,846 km (0.104 R)
• M14: 12,248,924 km (0.08 R)
• M15: 12,760,100 km (0.111 R)
• M16: 17,134,791 km (0.029 R)
• M17: 18,017,568 km (0.079 R)
• M18: 19,960,395 km (0.114 R)
• M19: 21,118,133 km (0.116 R)
• M20: 24,157,513 km (0.095 R)
• M21: 27,802,016 km (0.089 R)
• M22: 28,683,597 km (0.113 R)
• M23: 29,356,937 km (0.118 R)
• M24: 30,502,407 km (0.076 R)
• M25: 31,558,568 km (0.093 R)
• M26: 34,746,499 km (0.034 R)
• M27: 36,811,249 km (0.115 R)
• M28: 37,074,990 km (0.055 R)
• M29: 37,472,920 km (0.117 R)
• M30: 49,165,340 km (0.102 R)
• M31: 52,760,476 km (0.06 R)
• M32: 54,280,540 km (0.112 R)
• M33: 58,655,231 km (0.093 R)
• M34: 59,376,442 km (0.118 R)

Kuiper Belt

Range: 30.5 - 60.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 13,333 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit