🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.43 AU - 0.59 AU

Year: 129 Days

Day: 17.6 Hours

Environment

Temp: 251 °C

Axial Tilt: 10.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.62 AU - 0.8 AU

Year: 211 Days

Day: 13.8 Hours

Environment

Temp: 180 °C

Axial Tilt: 33.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 36,465,009 km

• M1: 78,389 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.04 AU - 1.72 AU

Year: 572 Days

Day: 42 Hours

Environment

Temp: 5 °C

Axial Tilt: 29.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 36,465,009 km

• M1: 133,441 km (0.114 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.38 AU - 2.16 AU

Year: 831 Days

Day: 27.4 Hours

Environment

Temp: -41 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.7 AU - 4.24 AU

Year: 2282 Days

Day: 35 Hours

Environment

Temp: -115 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.91 AU - 5.97 AU

Year: 3877 Days

Day: 36.2 Hours

Environment

Temp: -133 °C

Axial Tilt: 10 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.2

Radius: 12.7

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 6.28 AU - 6.44 AU

Year: 5663 Days

Day: 11.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,465,009 km

• M1: 158,574 km (0.116 R)
• M2: 758,461 km (0.087 R)
• M3: 1,162,226 km (0.118 R)
• M4: 1,797,418 km (0.033 R)
• M5: 2,533,889 km (0.11 R)
• M6: 2,957,999 km (0.114 R)
• M7: 3,513,456 km (0.027 R)
• M8: 5,380,138 km (0.036 R)
• M9: 5,965,813 km (0.115 R)
• M10: 8,841,085 km (0.088 R)
• M11: 10,997,388 km (0.077 R)
• M12: 12,576,543 km (0.106 R)
• M13: 13,824,489 km (0.104 R)
• M14: 14,746,012 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.3

Radius: 11.7

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 6.46 AU - 7.14 AU

Year: 6261 Days

Day: 11.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,465,009 km

• M1: 145,559 km (0.114 R)
• M2: 666,608 km (0.118 R)
• M3: 1,059,003 km (0.111 R)
• M4: 1,897,200 km (0.109 R)
• M5: 2,267,006 km (0.083 R)
• M6: 2,817,227 km (0.104 R)
• M7: 3,367,598 km (0.114 R)
• M8: 4,935,084 km (0.107 R)
• M9: 6,188,116 km (0.115 R)
• M10: 7,379,513 km (0.079 R)
• M11: 14,449,359 km (0.036 R)
• M12: 19,662,396 km (0.078 R)
• M13: 20,317,784 km (0.081 R)
• M14: 24,227,375 km (0.045 R)
• M15: 25,150,244 km (0.05 R)
• M16: 32,682,048 km (0.113 R)
• M17: 34,538,857 km (0.059 R)
• M18: 35,066,938 km (0.072 R)

Kuiper Belt

Range: 31.1 - 53.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 14,953 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit