🌌 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: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.45 AU - 0.71 AU

Year: 285 Days

Day: 20.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.56 AU - 0.74 AU

Year: 338 Days

Day: 29.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 14.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 83,407,543 km

• M1: 87,664 km (0.085 R)
• M2: 107,710 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.8

Radius: 8.8

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.66 AU - 1.86 AU

Year: 1508 Days

Day: 8.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 148.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 83,407,543 km

• M1: 109,805 km (0.072 R)
• M2: 417,079 km (0.104 R)
• M3: 752,328 km (0.07 R)
• M4: 1,504,356 km (0.066 R)
• M5: 1,914,554 km (0.095 R)
• M6: 2,234,394 km (0.081 R)
• M7: 3,524,376 km (0.08 R)
• M8: 4,336,543 km (0.077 R)
• M9: 5,268,388 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348

Radius: 10.8

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.02 AU - 2.44 AU

Year: 2150 Days

Day: 13.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,407,543 km

• M1: 134,937 km (0.103 R)
• M2: 505,042 km (0.085 R)
• M3: 1,483,412 km (0.117 R)
• M4: 4,796,557 km (0.041 R)
• M5: 5,271,530 km (0.056 R)
• M6: 7,683,945 km (0.06 R)
• M7: 8,481,900 km (0.106 R)
• M8: 9,209,245 km (0.065 R)
• M9: 10,377,455 km (0.078 R)
• M10: 11,569,002 km (0.095 R)
• M11: 13,645,719 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462

Radius: 9.3

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.17 AU - 2.29 AU

Year: 2150 Days

Day: 13.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,407,543 km

• M1: 115,789 km (0.069 R)
• M2: 673,490 km (0.038 R)
• M3: 1,066,633 km (0.092 R)
• M4: 1,408,464 km (0.119 R)
• M5: 3,006,618 km (0.101 R)
• M6: 3,414,571 km (0.095 R)
• M7: 3,930,983 km (0.043 R)
• M8: 5,339,298 km (0.073 R)
• M9: 7,003,873 km (0.11 R)
• M10: 8,430,887 km (0.102 R)
• M11: 8,800,394 km (0.034 R)
• M12: 10,634,314 km (0.101 R)
• M13: 11,849,797 km (0.111 R)
• M14: 13,361,184 km (0.118 R)
• M15: 14,907,877 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.8

Radius: 11.1

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 3.27 AU - 3.59 AU

Year: 4102 Days

Day: 8.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 83,407,543 km

• M1: 156,779 km (0.071 R)
• M2: 545,883 km (0.059 R)
• M3: 1,530,685 km (0.11 R)
• M4: 2,284,060 km (0.099 R)
• M5: 3,879,671 km (0.099 R)
• M6: 4,973,232 km (0.054 R)
• M7: 5,672,901 km (0.098 R)
• M8: 6,348,784 km (0.09 R)
• M9: 10,356,212 km (0.109 R)
• M10: 11,584,560 km (0.031 R)
• M11: 14,842,353 km (0.097 R)
• M12: 15,851,839 km (0.03 R)
• M13: 18,909,620 km (0.089 R)
• M14: 21,000,549 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.1

Radius: 4.5

Gravity: 11.02 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 6.71 AU - 10.47 AU

Year: 16256 Days

Day: 16.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,407,543 km

• M1: 57,595 km (0.07 R)
• M2: 454,030 km (0.116 R)
• M3: 632,051 km (0.073 R)
• M4: 838,047 km (0.073 R)
• M5: 1,237,025 km (0.117 R)
• M6: 1,677,591 km (0.082 R)
• M7: 2,574,430 km (0.077 R)
• M8: 2,862,406 km (0.106 R)
• M9: 4,123,217 km (0.099 R)
• M10: 5,219,021 km (0.105 R)
• M11: 5,612,613 km (0.113 R)
• M12: 6,061,107 km (0.052 R)
• M13: 7,387,143 km (0.109 R)
• M14: 10,494,141 km (0.055 R)
• M15: 13,508,239 km (0.086 R)
• M16: 14,821,259 km (0.099 R)
• M17: 17,843,884 km (0.084 R)
• M18: 21,335,349 km (0.053 R)
• M19: 30,458,276 km (0.109 R)
• M20: 32,158,755 km (0.026 R)
• M21: 34,258,960 km (0.034 R)
• M22: 38,730,290 km (0.114 R)
• M23: 45,457,407 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 914.2

Radius: 6

Gravity: 25.39 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 8.81 AU - 10.83 AU

Year: 19869 Days

Day: 17.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 83,407,543 km

• M1: 92,601 km (0.075 R)
• M2: 279,598 km (0.104 R)
• M3: 513,569 km (0.061 R)
• M4: 998,715 km (0.07 R)
• M5: 1,556,267 km (0.112 R)
• M6: 2,024,059 km (0.105 R)
• M7: 2,279,872 km (0.09 R)
• M8: 2,557,226 km (0.1 R)
• M9: 3,466,931 km (0.079 R)
• M10: 4,793,116 km (0.081 R)
• M11: 5,094,256 km (0.119 R)
• M12: 8,507,481 km (0.117 R)
• M13: 9,348,221 km (0.067 R)
• M14: 10,934,856 km (0.086 R)
• M15: 13,638,838 km (0.084 R)
• M16: 17,895,196 km (0.12 R)
• M17: 20,127,945 km (0.06 R)
• M18: 20,322,123 km (0.111 R)
• M19: 21,110,803 km (0.027 R)
• M20: 22,022,452 km (0.088 R)
• M21: 22,540,061 km (0.061 R)
• M22: 23,278,326 km (0.105 R)
• M23: 23,492,102 km (0.118 R)
• M24: 30,153,096 km (0.098 R)
• M25: 30,919,935 km (0.087 R)
• M26: 31,568,891 km (0.088 R)
• M27: 39,165,919 km (0.059 R)
• M28: 41,005,225 km (0.093 R)
• M29: 44,361,154 km (0.092 R)
• M30: 45,020,432 km (0.053 R)
• M31: 45,519,341 km (0.118 R)
• M32: 49,466,331 km (0.07 R)
• M33: 58,821,733 km (0.114 R)
• M34: 61,433,862 km (0.032 R)
• M35: 61,637,913 km (0.094 R)
• M36: 67,320,538 km (0.089 R)
• M37: 72,656,245 km (0.118 R)
• M38: 75,660,918 km (0.101 R)
• M39: 76,365,823 km (0.084 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 337 - 14,211 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit