🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.45 AU - 0.73 AU

Year: 174 Days

Day: 46.1 Hours

Environment

Temp: 174 °C

Axial Tilt: 31.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 26,145,500 km

• M1: 470,186 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.04 AU - 1.14 AU

Year: 436 Days

Day: 46.9 Hours

Environment

Temp: 11 °C

Axial Tilt: 49 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.25 AU - 1.35 AU

Year: 568 Days

Day: 25.7 Hours

Environment

Temp: -39 °C

Axial Tilt: 0.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 26,145,500 km

• M1: 467,344 km (0.109 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.27 AU - 1.65 AU

Year: 675 Days

Day: 41.6 Hours

Environment

Temp: -41 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.6

Radius: 10

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.4 AU - 4.76 AU

Year: 3155 Days

Day: 5.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,145,500 km

• M1: 124,465 km (0.104 R)
• M2: 496,366 km (0.088 R)
• M3: 847,472 km (0.109 R)
• M4: 1,312,721 km (0.067 R)
• M5: 3,846,909 km (0.085 R)
• M6: 4,920,274 km (0.088 R)
• M7: 6,017,425 km (0.057 R)
• M8: 6,350,878 km (0.067 R)
• M9: 6,785,161 km (0.027 R)
• M10: 8,446,146 km (0.09 R)
• M11: 12,109,499 km (0.094 R)
• M12: 15,034,885 km (0.104 R)
• M13: 20,885,060 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.8

Radius: 9

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 5.12 AU - 8.3 AU

Year: 6655 Days

Day: 10.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 26,145,500 km

• M1: 112,198 km (0.113 R)
• M2: 729,888 km (0.071 R)
• M3: 1,073,066 km (0.091 R)
• M4: 1,524,552 km (0.109 R)
• M5: 1,911,412 km (0.095 R)
• M6: 2,959,943 km (0.072 R)
• M7: 3,831,949 km (0.078 R)
• M8: 4,205,944 km (0.025 R)
• M9: 5,165,315 km (0.114 R)
• M10: 5,711,497 km (0.027 R)
• M11: 6,327,392 km (0.114 R)
• M12: 6,717,692 km (0.03 R)
• M13: 7,055,335 km (0.106 R)
• M14: 7,404,197 km (0.074 R)
• M15: 8,996,966 km (0.079 R)
• M16: 10,806,352 km (0.116 R)
• M17: 12,040,983 km (0.106 R)
• M18: 14,340,751 km (0.079 R)
• M19: 16,307,365 km (0.101 R)
• M20: 18,976,789 km (0.085 R)
• M21: 20,135,724 km (0.107 R)
• M22: 25,733,975 km (0.091 R)
• M23: 26,063,091 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.7

Radius: 13.5

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 8.34 AU - 9.9 AU

Year: 10545 Days

Day: 11.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 26,145,500 km

• M1: 169,345 km (0.091 R)
• M2: 676,930 km (0.08 R)
• M3: 1,179,430 km (0.063 R)
• M4: 1,608,028 km (0.1 R)
• M5: 2,037,673 km (0.077 R)
• M6: 3,354,134 km (0.045 R)
• M7: 3,846,760 km (0.086 R)
• M8: 5,838,954 km (0.113 R)
• M9: 6,362,098 km (0.104 R)
• M10: 6,795,034 km (0.073 R)
• M11: 7,289,755 km (0.095 R)
• M12: 8,444,949 km (0.102 R)
• M13: 9,263,998 km (0.105 R)
• M14: 10,294,877 km (0.115 R)
• M15: 11,286,561 km (0.12 R)
• M16: 11,747,472 km (0.078 R)
• M17: 13,396,489 km (0.072 R)
• M18: 20,686,094 km (0.113 R)
• M19: 21,729,240 km (0.045 R)
• M20: 26,054,863 km (0.089 R)
• M21: 32,749,966 km (0.082 R)
• M22: 33,335,342 km (0.111 R)
• M23: 37,885,810 km (0.111 R)
• M24: 40,914,120 km (0.068 R)
• M25: 44,814,286 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.9

Radius: 14.3

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 10.31 AU - 11.09 AU

Year: 13401 Days

Day: 9.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,145,500 km

• M1: 177,872 km (0.108 R)
• M2: 729,738 km (0.049 R)
• M3: 1,954,496 km (0.05 R)
• M4: 2,466,121 km (0.032 R)
• M5: 4,836,649 km (0.108 R)
• M6: 6,277,276 km (0.058 R)
• M7: 8,271,117 km (0.119 R)
• M8: 13,423,417 km (0.106 R)
• M9: 14,759,027 km (0.119 R)
• M10: 16,125,154 km (0.101 R)
• M11: 17,218,715 km (0.034 R)
• M12: 17,994,978 km (0.074 R)
• M13: 20,135,873 km (0.088 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 12,410 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit