🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.59 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.16 AU - 1.2 AU

Year: 446 Days

Day: 45.4 Hours

Environment

Temp: 43 °C

Axial Tilt: 26.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.35 AU - 2.45 AU

Year: 1295 Days

Day: 28 Hours

Environment

Temp: -61 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.5 AU - 3.06 AU

Year: 1614 Days

Day: 18.8 Hours

Environment

Temp: -81 °C

Axial Tilt: 44.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,163,136 km

• M1: 38,746 km (0.106 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.28 AU - 3.6 AU

Year: 1756 Days

Day: 31.1 Hours

Environment

Temp: -88 °C

Axial Tilt: 14.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.1 AU - 3.26 AU

Year: 1975 Days

Day: 24.8 Hours

Environment

Temp: -94 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.96 AU - 4.28 AU

Year: 2399 Days

Day: 23 Hours

Environment

Temp: -106 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,163,136 km

• M1: 1,252,284 km (0.119 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 4.21 AU - 4.33 AU

Year: 3073 Days

Day: 34 Hours

Environment

Temp: -116 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 8.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.2

Radius: 12

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 7.25 AU - 10.67 AU

Year: 9340 Days

Day: 13.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,163,136 km

• M1: 149,299 km (0.117 R)
• M2: 1,007,990 km (0.107 R)
• M3: 1,726,659 km (0.056 R)
• M4: 2,361,103 km (0.092 R)
• M5: 3,168,483 km (0.082 R)
• M6: 5,654,351 km (0.071 R)
• M7: 7,253,103 km (0.087 R)
• M8: 7,945,442 km (0.115 R)
• M9: 8,815,803 km (0.112 R)
• M10: 13,002,000 km (0.101 R)
• M11: 13,657,388 km (0.12 R)
• M12: 14,841,306 km (0.094 R)
• M13: 18,579,457 km (0.085 R)
• M14: 27,369,230 km (0.118 R)
• M15: 31,633,068 km (0.067 R)
• M16: 37,740,401 km (0.119 R)
• M17: 39,690,709 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.9

Radius: 10.9

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 11.27 AU - 12.61 AU

Year: 14368 Days

Day: 7.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,163,136 km

• M1: 142,417 km (0.116 R)
• M2: 490,531 km (0.113 R)
• M3: 948,899 km (0.07 R)
• M4: 1,853,368 km (0.097 R)
• M5: 2,208,962 km (0.075 R)
• M6: 4,039,143 km (0.118 R)
• M7: 6,679,395 km (0.107 R)
• M8: 7,607,351 km (0.072 R)
• M9: 8,144,856 km (0.083 R)
• M10: 8,531,567 km (0.043 R)
• M11: 8,885,665 km (0.069 R)
• M12: 9,814,219 km (0.092 R)
• M13: 12,701,009 km (0.119 R)
• M14: 14,871,375 km (0.09 R)
• M15: 19,933,916 km (0.062 R)
• M16: 27,166,674 km (0.088 R)
• M17: 43,842,050 km (0.091 R)

Planet 10 - Gas Giant

Semi-Major Axis: 13.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342

Radius: 14.8

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 13.06 AU - 13.16 AU

Year: 16531 Days

Day: 12.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,163,136 km

• M1: 184,005 km (0.089 R)
• M2: 667,655 km (0.12 R)
• M3: 1,384,827 km (0.103 R)
• M4: 2,175,751 km (0.072 R)
• M5: 3,424,445 km (0.108 R)
• M6: 4,222,400 km (0.114 R)
• M7: 7,129,386 km (0.089 R)
• M8: 8,161,013 km (0.072 R)
• M9: 9,143,422 km (0.063 R)
• M10: 14,400,291 km (0.114 R)
• M11: 16,118,273 km (0.06 R)
• M12: 20,540,835 km (0.116 R)
• M13: 21,134,439 km (0.098 R)
• M14: 23,532,493 km (0.04 R)
• M15: 25,228,783 km (0.118 R)
• M16: 26,304,841 km (0.085 R)
• M17: 28,027,610 km (0.088 R)
• M18: 28,653,378 km (0.12 R)
• M19: 34,472,885 km (0.096 R)
• M20: 39,193,296 km (0.089 R)
• M21: 49,590,946 km (0.113 R)
• M22: 50,969,042 km (0.065 R)

Kuiper Belt

Range: 31.5 - 57.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 16,650 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit