🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.4 AU - 0.62 AU

Year: 235 Days

Day: 22.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.49 AU - 0.79 AU

Year: 331 Days

Day: 39.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.3

Radius: 12.8

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.75 AU - 0.83 AU

Year: 453 Days

Day: 14.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,388,112 km

• M1: 159,172 km (0.051 R)
• M2: 566,826 km (0.068 R)
• M3: 1,358,797 km (0.071 R)
• M4: 1,830,031 km (0.09 R)
• M5: 2,347,639 km (0.108 R)
• M6: 2,907,135 km (0.092 R)
• M7: 3,725,885 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.7

Radius: 14.5

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.44 AU - 3.62 AU

Year: 3405 Days

Day: 13.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 22,388,112 km

• M1: 218,712 km (0.12 R)
• M2: 707,897 km (0.098 R)
• M3: 1,441,226 km (0.106 R)
• M4: 2,574,879 km (0.063 R)
• M5: 3,138,563 km (0.046 R)
• M6: 4,470,882 km (0.087 R)
• M7: 5,033,071 km (0.081 R)
• M8: 6,725,920 km (0.064 R)
• M9: 9,036,310 km (0.061 R)
• M10: 9,778,166 km (0.065 R)
• M11: 10,730,356 km (0.075 R)
• M12: 11,251,256 km (0.118 R)
• M13: 11,743,582 km (0.103 R)
• M14: 12,771,619 km (0.077 R)
• M15: 13,556,260 km (0.094 R)
• M16: 14,165,722 km (0.084 R)
• M17: 15,060,466 km (0.105 R)
• M18: 15,714,359 km (0.119 R)
• M19: 16,904,410 km (0.099 R)
• M20: 18,521,862 km (0.111 R)
• M21: 22,202,119 km (0.102 R)
• M22: 23,845,901 km (0.105 R)
• M23: 24,436,214 km (0.109 R)
• M24: 25,569,567 km (0.119 R)
• M25: 26,032,573 km (0.047 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 58.5

Radius: 4.1

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 6.11 AU - 7.07 AU

Year: 10923 Days

Day: 19.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 22,388,112 km

• M1: 51,013 km (0.117 R)
• M2: 199,414 km (0.047 R)
• M3: 500,554 km (0.093 R)
• M4: 789,877 km (0.077 R)
• M5: 944,561 km (0.104 R)
• M6: 1,228,947 km (0.103 R)
• M7: 2,727,468 km (0.074 R)
• M8: 4,500,054 km (0.118 R)
• M9: 5,989,300 km (0.081 R)
• M10: 11,487,620 km (0.099 R)
• M11: 14,558,117 km (0.097 R)
• M12: 18,544,750 km (0.118 R)
• M13: 19,323,557 km (0.09 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 19,701 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit