🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.83 AU - 0.91 AU

Year: 301 Days

Day: 27.5 Hours

Environment

Temp: 131 °C

Axial Tilt: 41.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.9 AU - 1.34 AU

Year: 440 Days

Day: 28.1 Hours

Environment

Temp: 13 °C

Axial Tilt: 17.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 100,267,506 km

• M1: 26,180 km (0.111 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.01 AU - 1.25 AU

Year: 445 Days

Day: 28.4 Hours

Environment

Temp: -8 °C

Axial Tilt: 19.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 100,267,506 km

• M1: 289,771 km (0.063 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.21 AU - 1.85 AU

Year: 702 Days

Day: 33.5 Hours

Environment

Temp: -52 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.19

Radius: 1.07

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.44 AU - 2 AU

Year: 837 Days

Day: 41.5 Hours

Environment

Temp: -64 °C

Axial Tilt: 49 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.9

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.45 AU - 4.09 AU

Year: 2715 Days

Day: 41.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 47.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 100,267,506 km

• M1: 181,013 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.7

Radius: 5.6

Gravity: 19.22 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 18.98 AU - 20.28 AU

Year: 32254 Days

Day: 16.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 100,267,506 km

• M1: 69,713 km (0.088 R)
• M2: 256,112 km (0.119 R)
• M3: 536,308 km (0.115 R)
• M4: 801,246 km (0.03 R)
• M5: 1,122,134 km (0.025 R)
• M6: 1,711,549 km (0.074 R)
• M7: 1,976,786 km (0.116 R)
• M8: 2,857,020 km (0.085 R)
• M9: 4,042,733 km (0.08 R)
• M10: 5,144,970 km (0.101 R)
• M11: 5,611,267 km (0.101 R)
• M12: 6,676,553 km (0.077 R)
• M13: 7,653,277 km (0.1 R)
• M14: 8,260,495 km (0.103 R)
• M15: 8,489,081 km (0.093 R)
• M16: 17,760,409 km (0.099 R)
• M17: 20,963,748 km (0.111 R)
• M18: 26,335,957 km (0.09 R)
• M19: 31,297,819 km (0.095 R)
• M20: 31,993,898 km (0.119 R)
• M21: 33,128,897 km (0.103 R)
• M22: 33,561,385 km (0.092 R)
• M23: 33,851,754 km (0.106 R)
• M24: 34,143,769 km (0.056 R)
• M25: 37,624,313 km (0.04 R)
• M26: 38,411,048 km (0.08 R)
• M27: 46,710,140 km (0.083 R)
• M28: 48,910,425 km (0.041 R)
• M29: 54,912,292 km (0.07 R)
• M30: 80,664,518 km (0.108 R)
• M31: 82,762,329 km (0.087 R)
• M32: 83,027,117 km (0.104 R)
• M33: 98,771,994 km (0.083 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 376 - 14,246 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit