🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.41 AU - 0.63 AU

Year: 133 Days

Day: 21.3 Hours

Environment

Temp: 229 °C

Axial Tilt: 8.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 95,123,778 km

• M1: 129,103 km (0.091 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.27

Radius: 1.61

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.28 AU - 1.58 AU

Year: 607 Days

Day: 37.3 Hours

Environment

Temp: -15 °C

Axial Tilt: 1.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.49 AU - 1.63 AU

Year: 691 Days

Day: 47.7 Hours

Environment

Temp: -25 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.97 AU - 2.75 AU

Year: 1286 Days

Day: 47.7 Hours

Environment

Temp: -69 °C

Axial Tilt: 27.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.36 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.1

Radius: 8.3

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 7.14 AU - 9.56 AU

Year: 8560 Days

Day: 12.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 95,123,778 km

• M1: 104,569 km (0.101 R)
• M2: 554,859 km (0.046 R)
• M3: 1,123,630 km (0.119 R)
• M4: 2,398,503 km (0.053 R)
• M5: 4,069,361 km (0.096 R)
• M6: 4,742,402 km (0.11 R)
• M7: 5,917,793 km (0.101 R)
• M8: 6,748,809 km (0.094 R)
• M9: 7,620,366 km (0.064 R)
• M10: 8,489,829 km (0.026 R)
• M11: 12,489,328 km (0.113 R)
• M12: 14,166,918 km (0.117 R)
• M13: 14,757,980 km (0.073 R)
• M14: 15,309,547 km (0.108 R)
• M15: 15,932,024 km (0.062 R)
• M16: 18,401,884 km (0.105 R)
• M17: 19,170,369 km (0.049 R)
• M18: 19,628,587 km (0.055 R)
• M19: 24,542,877 km (0.107 R)
• M20: 24,850,600 km (0.112 R)
• M21: 26,428,109 km (0.093 R)
• M22: 27,406,031 km (0.113 R)
• M23: 27,820,417 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 12.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.4

Radius: 10.8

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 10.41 AU - 14.99 AU

Year: 16056 Days

Day: 11.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 95,123,778 km

• M1: 155,881 km (0.095 R)
• M2: 933,042 km (0.12 R)
• M3: 1,694,196 km (0.071 R)
• M4: 2,492,450 km (0.093 R)
• M5: 6,486,863 km (0.052 R)
• M6: 8,071,852 km (0.052 R)
• M7: 10,097,557 km (0.071 R)
• M8: 17,379,383 km (0.104 R)
• M9: 18,848,285 km (0.071 R)
• M10: 20,081,869 km (0.115 R)
• M11: 23,575,128 km (0.048 R)
• M12: 25,006,182 km (0.089 R)
• M13: 27,067,491 km (0.092 R)
• M14: 31,312,779 km (0.06 R)
• M15: 45,575,440 km (0.048 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 868.9

Radius: 5.5

Gravity: 28.72 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 15.43 AU - 18.53 AU

Year: 24822 Days

Day: 20.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 95,123,778 km

• M1: 68,516 km (0.099 R)
• M2: 408,851 km (0.11 R)
• M3: 641,476 km (0.07 R)
• M4: 936,183 km (0.096 R)
• M5: 1,398,890 km (0.072 R)
• M6: 1,960,181 km (0.1 R)
• M7: 3,642,110 km (0.05 R)
• M8: 4,615,094 km (0.036 R)
• M9: 4,961,713 km (0.119 R)
• M10: 5,450,748 km (0.116 R)
• M11: 6,619,706 km (0.058 R)
• M12: 7,785,223 km (0.049 R)
• M13: 8,001,093 km (0.055 R)
• M14: 10,320,159 km (0.085 R)
• M15: 10,646,581 km (0.086 R)
• M16: 14,300,210 km (0.088 R)
• M17: 15,371,331 km (0.048 R)
• M18: 15,711,367 km (0.088 R)
• M19: 17,031,418 km (0.071 R)
• M20: 17,212,731 km (0.099 R)
• M21: 17,764,747 km (0.094 R)
• M22: 21,222,552 km (0.114 R)
• M23: 23,950,021 km (0.079 R)
• M24: 30,088,919 km (0.085 R)
• M25: 34,667,960 km (0.114 R)
• M26: 35,399,943 km (0.068 R)
• M27: 37,198,707 km (0.087 R)
• M28: 40,653,072 km (0.059 R)
• M29: 41,303,224 km (0.061 R)
• M30: 42,791,573 km (0.037 R)
• M31: 55,408,059 km (0.07 R)
• M32: 57,828,403 km (0.051 R)
• M33: 64,625,383 km (0.097 R)
• M34: 65,066,995 km (0.099 R)
• M35: 68,215,283 km (0.111 R)
• M36: 71,228,184 km (0.103 R)
• M37: 77,766,658 km (0.099 R)
• M38: 84,167,352 km (0.053 R)
• M39: 84,430,345 km (0.108 R)
• M40: 87,900,567 km (0.116 R)

Kuiper Belt

Range: 30.9 - 60.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 17,018 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit