🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.66 AU - 0.78 AU

Year: 215 Days

Day: 26.4 Hours

Environment

Temp: 209 °C

Axial Tilt: 43.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.69 AU - 0.77 AU

Year: 219 Days

Day: 34.9 Hours

Environment

Temp: 188 °C

Axial Tilt: 24.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 35,859,591 km

• M1: 372,200 km (0.046 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.5 AU - 2.22 AU

Year: 892 Days

Day: 26.4 Hours

Environment

Temp: -52 °C

Axial Tilt: 0.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.71 AU - 2.77 AU

Year: 1178 Days

Day: 32.9 Hours

Environment

Temp: -74 °C

Axial Tilt: 47.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 35,859,591 km

• M1: 889,210 km (0.114 R)
• M2: 1,205,160 km (0.108 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.83 AU - 2.91 AU

Year: 1282 Days

Day: 38.7 Hours

Environment

Temp: -61 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.23 AU - 3.67 AU

Year: 1781 Days

Day: 41 Hours

Environment

Temp: -90 °C

Axial Tilt: 4.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.66 AU - 4.16 AU

Year: 2213 Days

Day: 47.4 Hours

Environment

Temp: -111 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.51 AU - 4.43 AU

Year: 2780 Days

Day: 36.1 Hours

Environment

Temp: -123 °C

Axial Tilt: 44.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 10.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.4

Radius: 9.8

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 10.24 AU - 10.94 AU

Year: 12112 Days

Day: 7.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 35,859,591 km

• M1: 121,922 km (0.115 R)
• M2: 429,645 km (0.107 R)
• M3: 771,476 km (0.115 R)
• M4: 1,081,144 km (0.067 R)
• M5: 2,015,682 km (0.064 R)
• M6: 2,701,887 km (0.03 R)
• M7: 3,210,819 km (0.113 R)
• M8: 3,782,732 km (0.097 R)
• M9: 4,766,487 km (0.077 R)
• M10: 5,844,340 km (0.043 R)
• M11: 6,513,491 km (0.112 R)
• M12: 7,272,102 km (0.111 R)
• M13: 7,754,854 km (0.107 R)
• M14: 8,784,686 km (0.078 R)
• M15: 9,285,989 km (0.09 R)
• M16: 10,699,838 km (0.094 R)
• M17: 11,378,115 km (0.078 R)
• M18: 11,700,797 km (0.118 R)
• M19: 13,111,356 km (0.037 R)
• M20: 14,071,774 km (0.105 R)
• M21: 14,949,914 km (0.095 R)
• M22: 19,511,452 km (0.116 R)
• M23: 20,444,494 km (0.045 R)
• M24: 20,762,090 km (0.079 R)
• M25: 21,082,828 km (0.107 R)
• M26: 22,992,295 km (0.098 R)
• M27: 25,104,916 km (0.112 R)
• M28: 25,744,597 km (0.083 R)
• M29: 27,923,490 km (0.088 R)
• M30: 31,470,754 km (0.099 R)
• M31: 32,644,948 km (0.083 R)
• M32: 33,627,058 km (0.042 R)
• M33: 36,691,870 km (0.082 R)
• M34: 40,935,513 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 90.3

Radius: 6.3

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 12.74 AU - 14.66 AU

Year: 17822 Days

Day: 16.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,859,591 km

• M1: 78,688 km (0.025 R)
• M2: 331,658 km (0.104 R)
• M3: 598,092 km (0.068 R)
• M4: 847,173 km (0.095 R)
• M5: 1,165,068 km (0.064 R)
• M6: 1,720,076 km (0.097 R)
• M7: 2,010,895 km (0.053 R)
• M8: 2,351,230 km (0.108 R)
• M9: 4,497,510 km (0.109 R)
• M10: 4,909,054 km (0.114 R)
• M11: 5,226,501 km (0.113 R)
• M12: 5,681,428 km (0.098 R)
• M13: 5,934,548 km (0.083 R)
• M14: 9,590,719 km (0.096 R)
• M15: 16,477,457 km (0.097 R)
• M16: 17,189,394 km (0.071 R)
• M17: 18,953,452 km (0.066 R)
• M18: 26,249,938 km (0.115 R)
• M19: 27,850,037 km (0.083 R)
• M20: 30,274,420 km (0.108 R)
• M21: 32,835,985 km (0.028 R)

Kuiper Belt

Range: 31.2 - 53.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 477 - 18,431 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit