🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.49 AU - 0.79 AU

Year: 191 Days

Day: 17.6 Hours

Environment

Temp: 180 °C

Axial Tilt: 38.7 °

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: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.61 AU - 0.87 AU

Year: 237 Days

Day: 44.1 Hours

Environment

Temp: 161 °C

Axial Tilt: 9.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 40,367,515 km

• M1: 36,502 km (0.098 R)
• M2: 59,690 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.84 AU - 1 AU

Year: 329 Days

Day: 16 Hours

Environment

Temp: 29 °C

Axial Tilt: 18.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 40,367,515 km

• M1: 28,573 km (0.068 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.01 AU - 1.07 AU

Year: 395 Days

Day: 16.3 Hours

Environment

Temp: 19 °C

Axial Tilt: 48.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.07 AU - 1.21 AU

Year: 454 Days

Day: 42.8 Hours

Environment

Temp: -10 °C

Axial Tilt: 24.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 40,367,515 km

• M1: 317,895 km (0.114 R)
• M2: 518,207 km (0.083 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.57 AU - 3.79 AU

Year: 2114 Days

Day: 28.5 Hours

Environment

Temp: -108 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 7.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.9

Radius: 13.7

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.68 AU - 8.32 AU

Year: 7657 Days

Day: 5.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 40,367,515 km

• M1: 170,392 km (0.057 R)
• M2: 944,112 km (0.117 R)
• M3: 2,061,459 km (0.042 R)
• M4: 2,573,233 km (0.117 R)
• M5: 4,238,108 km (0.108 R)
• M6: 5,533,924 km (0.048 R)
• M7: 6,291,338 km (0.086 R)
• M8: 6,858,165 km (0.101 R)
• M9: 7,852,243 km (0.098 R)
• M10: 9,612,112 km (0.098 R)
• M11: 10,317,616 km (0.103 R)
• M12: 10,856,766 km (0.042 R)
• M13: 11,466,228 km (0.081 R)
• M14: 13,432,991 km (0.112 R)
• M15: 14,375,757 km (0.096 R)
• M16: 14,863,446 km (0.081 R)
• M17: 15,807,708 km (0.091 R)
• M18: 17,264,641 km (0.07 R)
• M19: 18,809,239 km (0.088 R)
• M20: 20,064,515 km (0.067 R)
• M21: 20,520,639 km (0.045 R)
• M22: 24,080,620 km (0.101 R)
• M23: 28,603,711 km (0.107 R)
• M24: 29,474,072 km (0.064 R)
• M25: 31,676,003 km (0.065 R)
• M26: 34,308,925 km (0.119 R)
• M27: 38,820,049 km (0.081 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 12,611 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit