🌌 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: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.69 AU - 0.73 AU

Year: 208 Days

Day: 28.4 Hours

Environment

Temp: 188 °C

Axial Tilt: 13.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.67 AU - 0.81 AU

Year: 222 Days

Day: 22.6 Hours

Environment

Temp: 173 °C

Axial Tilt: 23.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.94 AU - 1.12 AU

Year: 364 Days

Day: 36.1 Hours

Environment

Temp: 153 °C

Axial Tilt: 31.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 79,182,118 km

• M1: 401,371 km (0.087 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.36 AU - 2.18 AU

Year: 820 Days

Day: 40.5 Hours

Environment

Temp: -37 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 79,182,118 km

• M1: 29,620 km (0.052 R)
• M2: 78,988 km (0.074 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.47 AU - 2.35 AU

Year: 919 Days

Day: 23.4 Hours

Environment

Temp: -47 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.29 AU - 3.23 AU

Year: 1597 Days

Day: 47 Hours

Environment

Temp: -74 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,182,118 km

• M1: 1,853,368 km (0.116 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.53 AU - 3.71 AU

Year: 1919 Days

Day: 17.7 Hours

Environment

Temp: -94 °C

Axial Tilt: 35.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 79,182,118 km

• M1: 157,975 km (0.049 R)
• M2: 180,415 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24

Radius: 5.1

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 12.57 AU - 15.27 AU

Year: 18086 Days

Day: 19.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 79,182,118 km

• M1: 65,524 km (0.106 R)
• M2: 457,620 km (0.073 R)
• M3: 968,048 km (0.051 R)
• M4: 1,155,793 km (0.115 R)
• M5: 2,631,277 km (0.103 R)
• M6: 3,481,292 km (0.08 R)
• M7: 4,500,802 km (0.083 R)
• M8: 5,103,980 km (0.074 R)
• M9: 6,953,608 km (0.081 R)
• M10: 12,041,282 km (0.063 R)
• M11: 13,924,420 km (0.106 R)
• M12: 14,424,077 km (0.063 R)
• M13: 19,971,465 km (0.043 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 644.3

Radius: 5

Gravity: 25.77 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 14.15 AU - 17.47 AU

Year: 21892 Days

Day: 24.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 79,182,118 km

• M1: 62,233 km (0.114 R)
• M2: 464,801 km (0.044 R)
• M3: 657,931 km (0.079 R)
• M4: 939,624 km (0.104 R)
• M5: 1,313,320 km (0.108 R)
• M6: 1,534,575 km (0.066 R)
• M7: 3,117,320 km (0.095 R)
• M8: 3,662,156 km (0.085 R)
• M9: 4,168,096 km (0.117 R)
• M10: 4,648,006 km (0.064 R)
• M11: 4,901,425 km (0.074 R)
• M12: 5,318,055 km (0.06 R)
• M13: 6,178,841 km (0.089 R)
• M14: 6,574,826 km (0.066 R)
• M15: 11,123,050 km (0.067 R)
• M16: 12,659,720 km (0.083 R)
• M17: 14,408,369 km (0.053 R)
• M18: 16,812,557 km (0.118 R)
• M19: 17,669,902 km (0.079 R)
• M20: 19,010,000 km (0.109 R)
• M21: 19,378,609 km (0.089 R)
• M22: 22,295,767 km (0.089 R)
• M23: 22,500,118 km (0.11 R)
• M24: 23,540,272 km (0.092 R)
• M25: 29,104,116 km (0.113 R)
• M26: 32,777,791 km (0.05 R)
• M27: 35,902,292 km (0.071 R)
• M28: 37,898,227 km (0.041 R)
• M29: 41,954,274 km (0.061 R)
• M30: 43,051,126 km (0.111 R)
• M31: 43,367,974 km (0.077 R)
• M32: 72,720,423 km (0.07 R)
• M33: 74,074,283 km (0.119 R)

Kuiper Belt

Range: 31.5 - 57.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 15,187 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit