🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.02 AU - 1.4 AU

Year: 474 Days

Day: 35.6 Hours

Environment

Temp: 2 °C

Axial Tilt: 1.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 70,992,713 km

• M1: 887,115 km (0.098 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.6 AU - 2.18 AU

Year: 926 Days

Day: 31.8 Hours

Environment

Temp: -53 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.07 AU - 2.81 AU

Year: 1359 Days

Day: 17.1 Hours

Environment

Temp: -68 °C

Axial Tilt: 7.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.58 AU - 4 AU

Year: 2127 Days

Day: 40.7 Hours

Environment

Temp: -108 °C

Axial Tilt: 20.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.2

Radius: 11.1

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 7.19 AU - 9.01 AU

Year: 8217 Days

Day: 7.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,992,713 km

• M1: 142,118 km (0.076 R)
• M2: 550,969 km (0.109 R)
• M3: 973,733 km (0.061 R)
• M4: 1,507,797 km (0.091 R)
• M5: 2,310,539 km (0.08 R)
• M6: 3,093,983 km (0.092 R)
• M7: 3,906,000 km (0.106 R)
• M8: 4,263,390 km (0.118 R)
• M9: 5,827,435 km (0.064 R)
• M10: 6,655,609 km (0.097 R)
• M11: 8,906,010 km (0.074 R)
• M12: 11,622,558 km (0.107 R)
• M13: 12,265,978 km (0.103 R)
• M14: 14,006,101 km (0.079 R)
• M15: 15,905,096 km (0.099 R)
• M16: 16,885,261 km (0.093 R)
• M17: 20,349,350 km (0.086 R)
• M18: 22,473,939 km (0.089 R)
• M19: 24,985,388 km (0.068 R)
• M20: 29,821,288 km (0.072 R)
• M21: 30,559,554 km (0.066 R)
• M22: 31,976,395 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.9

Radius: 12.3

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 9.76 AU - 10.48 AU

Year: 11475 Days

Day: 6.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,992,713 km

• M1: 159,621 km (0.115 R)
• M2: 1,254,528 km (0.08 R)
• M3: 2,295,280 km (0.107 R)
• M4: 3,742,041 km (0.071 R)
• M5: 4,274,310 km (0.071 R)
• M6: 6,509,751 km (0.099 R)
• M7: 6,966,324 km (0.078 R)
• M8: 9,627,969 km (0.035 R)
• M9: 10,528,249 km (0.12 R)
• M10: 13,445,258 km (0.092 R)
• M11: 22,155,445 km (0.067 R)
• M12: 29,893,395 km (0.083 R)
• M13: 30,416,389 km (0.117 R)
• M14: 41,421,855 km (0.087 R)
• M15: 43,259,515 km (0.117 R)
• M16: 46,535,559 km (0.087 R)
• M17: 47,097,299 km (0.028 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.9

Radius: 12.8

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 11.59 AU - 12.97 AU

Year: 15339 Days

Day: 6.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,992,713 km

• M1: 160,967 km (0.063 R)
• M2: 769,382 km (0.11 R)
• M3: 1,292,675 km (0.072 R)
• M4: 1,996,234 km (0.118 R)
• M5: 3,170,278 km (0.082 R)
• M6: 4,360,928 km (0.09 R)
• M7: 4,864,624 km (0.099 R)
• M8: 5,482,463 km (0.112 R)
• M9: 6,070,532 km (0.092 R)
• M10: 7,655,073 km (0.088 R)
• M11: 8,240,150 km (0.115 R)
• M12: 9,390,408 km (0.064 R)
• M13: 13,208,146 km (0.055 R)
• M14: 14,486,160 km (0.113 R)
• M15: 17,535,713 km (0.034 R)
• M16: 19,078,067 km (0.092 R)
• M17: 21,273,116 km (0.074 R)
• M18: 22,138,091 km (0.051 R)
• M19: 22,628,623 km (0.062 R)
• M20: 27,828,046 km (0.099 R)
• M21: 28,399,660 km (0.063 R)
• M22: 29,803,636 km (0.078 R)
• M23: 32,876,526 km (0.106 R)
• M24: 44,276,781 km (0.115 R)
• M25: 59,936,237 km (0.066 R)
• M26: 62,437,364 km (0.071 R)
• M27: 63,024,237 km (0.074 R)
• M28: 67,852,807 km (0.076 R)

Kuiper Belt

Range: 30.8 - 46.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 532 - 12,164 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit