🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.52 AU - 0.72 AU

Year: 181 Days

Day: 33.7 Hours

Environment

Temp: 196 °C

Axial Tilt: 2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 28,197,663 km

• M1: 413,489 km (0.093 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.81 AU - 1.19 AU

Year: 371 Days

Day: 35.1 Hours

Environment

Temp: 22 °C

Axial Tilt: 37.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.76 AU - 1.25 AU

Year: 371 Days

Day: 39.3 Hours

Environment

Temp: 10 °C

Axial Tilt: 3.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.77 AU - 1.27 AU

Year: 382 Days

Day: 18.3 Hours

Environment

Temp: 11 °C

Axial Tilt: 23.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.28 AU - 1.68 AU

Year: 668 Days

Day: 37 Hours

Environment

Temp: -37 °C

Axial Tilt: 20.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 28,197,663 km

• M1: 878,738 km (0.081 R)

Asteroid Belt

Center: 6.65 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 11.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.4

Radius: 12.8

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 9.28 AU - 14.36 AU

Year: 15071 Days

Day: 11.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 28,197,663 km

• M1: 560,992 km (0.12 R)
• M2: 678,426 km (0.061 R)
• M3: 781,798 km (0.094 R)
• M4: 1,140,534 km (0.06 R)
• M5: 2,481,230 km (0.082 R)
• M6: 3,032,798 km (0.093 R)
• M7: 4,858,789 km (0.076 R)
• M8: 5,306,236 km (0.096 R)
• M9: 6,039,715 km (0.039 R)
• M10: 6,342,052 km (0.043 R)
• M11: 6,495,240 km (0.116 R)
• M12: 6,597,864 km (0.066 R)
• M13: 7,655,073 km (0.111 R)
• M14: 9,107,219 km (0.059 R)
• M15: 9,864,783 km (0.042 R)
• M16: 11,069,644 km (0.085 R)
• M17: 11,502,431 km (0.055 R)
• M18: 11,658,312 km (0.044 R)
• M19: 11,846,207 km (0.101 R)
• M20: 12,576,244 km (0.102 R)
• M21: 13,288,180 km (0.094 R)
• M22: 13,484,602 km (0.085 R)
• M23: 14,514,883 km (0.115 R)
• M24: 15,364,150 km (0.073 R)
• M25: 15,985,729 km (0.082 R)
• M26: 16,474,765 km (0.072 R)
• M27: 16,862,522 km (0.065 R)
• M28: 17,755,023 km (0.066 R)
• M29: 18,080,099 km (0.053 R)
• M30: 18,261,562 km (0.11 R)
• M31: 18,699,435 km (0.081 R)
• M32: 19,623,052 km (0.057 R)
• M33: 19,959,198 km (0.111 R)
• M34: 20,221,892 km (0.108 R)
• M35: 21,514,418 km (0.068 R)
• M36: 24,981,947 km (0.102 R)
• M37: 26,697,236 km (0.038 R)
• M38: 27,111,323 km (0.116 R)
• M39: 27,360,703 km (0.081 R)
• M40: 27,527,504 km (0.113 R)
• M41: 27,694,455 km (0.032 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 12,547 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit