🌌 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: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.45 AU - 0.73 AU

Year: 168 Days

Day: 27.2 Hours

Environment

Temp: 228 °C

Axial Tilt: 10.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.58 AU - 0.64 AU

Year: 177 Days

Day: 21.9 Hours

Environment

Temp: 220 °C

Axial Tilt: 8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 47,481,434 km

• M1: 226,641 km (0.094 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.56 AU - 0.72 AU

Year: 190 Days

Day: 45.7 Hours

Environment

Temp: 209 °C

Axial Tilt: 34 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.8 AU - 1.06 AU

Year: 333 Days

Day: 25.8 Hours

Environment

Temp: 30 °C

Axial Tilt: 39.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.99 AU - 1.41 AU

Year: 488 Days

Day: 38.5 Hours

Environment

Temp: -4 °C

Axial Tilt: 19.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 47,481,434 km

• M1: 59,390 km (0.12 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.81 AU - 2.59 AU

Year: 1210 Days

Day: 22.4 Hours

Environment

Temp: -85 °C

Axial Tilt: 21.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 47,481,434 km

• M1: 833,559 km (0.104 R)
• M2: 1,536,819 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396

Radius: 13.4

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.8 AU - 5.54 AU

Year: 3743 Days

Day: 5 Hours

Environment

Temp: -128 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,481,434 km

• M1: 167,250 km (0.109 R)
• M2: 738,864 km (0.077 R)
• M3: 1,340,547 km (0.083 R)
• M4: 2,275,234 km (0.039 R)
• M5: 3,514,952 km (0.089 R)
• M6: 11,591,890 km (0.107 R)
• M7: 12,755,163 km (0.092 R)
• M8: 15,262,872 km (0.092 R)
• M9: 16,819,887 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525

Radius: 14.1

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 6.65 AU - 8.39 AU

Year: 7648 Days

Day: 12.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,481,434 km

• M1: 176,675 km (0.091 R)
• M2: 631,303 km (0.102 R)
• M3: 1,394,252 km (0.112 R)
• M4: 1,936,096 km (0.061 R)
• M5: 3,990,074 km (0.06 R)
• M6: 5,765,951 km (0.115 R)
• M7: 7,115,922 km (0.041 R)
• M8: 9,479,269 km (0.105 R)
• M9: 11,057,826 km (0.041 R)
• M10: 12,484,391 km (0.064 R)
• M11: 14,088,080 km (0.116 R)
• M12: 15,577,477 km (0.077 R)
• M13: 16,201,749 km (0.104 R)
• M14: 19,362,752 km (0.082 R)
• M15: 19,939,152 km (0.091 R)
• M16: 24,050,999 km (0.098 R)
• M17: 24,717,308 km (0.109 R)
• M18: 26,524,899 km (0.088 R)
• M19: 28,419,257 km (0.113 R)
• M20: 31,378,303 km (0.093 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 212.9

Radius: 4.2

Gravity: 12.07 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 12.19 AU - 14.11 AU

Year: 17685 Days

Day: 24.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 47,481,434 km

• M1: 53,107 km (0.095 R)
• M2: 246,537 km (0.097 R)
• M3: 460,911 km (0.118 R)
• M4: 683,662 km (0.039 R)
• M5: 829,520 km (0.051 R)
• M6: 1,138,589 km (0.112 R)
• M7: 1,710,652 km (0.076 R)
• M8: 1,883,736 km (0.092 R)
• M9: 2,068,340 km (0.095 R)
• M10: 2,493,797 km (0.062 R)
• M11: 2,675,408 km (0.088 R)
• M12: 3,133,477 km (0.113 R)
• M13: 4,820,941 km (0.093 R)
• M14: 5,363,383 km (0.09 R)
• M15: 6,088,185 km (0.066 R)
• M16: 6,233,444 km (0.105 R)
• M17: 6,530,695 km (0.027 R)
• M18: 6,994,149 km (0.105 R)
• M19: 8,789,623 km (0.106 R)
• M20: 9,354,205 km (0.085 R)
• M21: 10,194,796 km (0.118 R)
• M22: 11,355,974 km (0.097 R)
• M23: 13,077,547 km (0.104 R)
• M24: 15,565,509 km (0.107 R)
• M25: 16,530,565 km (0.106 R)
• M26: 18,051,825 km (0.11 R)
• M27: 23,525,612 km (0.071 R)
• M28: 28,974,564 km (0.105 R)
• M29: 33,039,587 km (0.075 R)
• M30: 47,197,380 km (0.083 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 11,297 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit