🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.58 AU - 0.64 AU

Year: 303 Days

Day: 39.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 27,330,581 km

• M1: 98,435 km (0.092 R)
• M2: 168,447 km (0.069 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.54 AU - 0.74 AU

Year: 326 Days

Day: 22.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 47 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.7

Radius: 14

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.73 AU - 0.87 AU

Year: 455 Days

Day: 5.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 27,330,581 km

• M1: 175,329 km (0.058 R)
• M2: 746,045 km (0.1 R)
• M3: 1,203,365 km (0.102 R)
• M4: 2,176,200 km (0.109 R)
• M5: 3,128,091 km (0.115 R)
• M6: 4,034,206 km (0.084 R)
• M7: 4,763,645 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.2

Radius: 14

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.88 AU - 1.26 AU

Year: 704 Days

Day: 9.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 27,330,581 km

• M1: 174,132 km (0.115 R)
• M2: 917,633 km (0.094 R)
• M3: 1,413,999 km (0.114 R)
• M4: 2,164,232 km (0.026 R)
• M5: 3,285,768 km (0.085 R)
• M6: 4,398,327 km (0.068 R)

Asteroid Belt

Center: 3.46 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.7

Radius: 12.8

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.71 AU - 5.97 AU

Year: 8973 Days

Day: 14.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,330,581 km

• M1: 159,172 km (0.107 R)
• M2: 647,908 km (0.064 R)
• M3: 1,437,486 km (0.102 R)
• M4: 2,319,515 km (0.085 R)
• M5: 2,821,266 km (0.116 R)
• M6: 3,474,710 km (0.067 R)
• M7: 4,001,743 km (0.076 R)
• M8: 4,437,671 km (0.089 R)
• M9: 5,324,787 km (0.087 R)
• M10: 5,882,637 km (0.117 R)
• M11: 7,450,273 km (0.116 R)
• M12: 8,627,608 km (0.107 R)
• M13: 9,720,720 km (0.067 R)
• M14: 11,304,214 km (0.103 R)
• M15: 14,706,368 km (0.101 R)
• M16: 15,140,651 km (0.068 R)
• M17: 17,867,222 km (0.12 R)
• M18: 18,361,942 km (0.118 R)
• M19: 18,929,367 km (0.077 R)
• M20: 21,733,878 km (0.084 R)
• M21: 22,369,070 km (0.09 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 383 - 16,581 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit