🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.59 AU - 0.91 AU

Year: 246 Days

Day: 28.9 Hours

Environment

Temp: 149 °C

Axial Tilt: 31.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 46,371,324 km

• M1: 506,688 km (0.076 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.89

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.83 AU - 1.23 AU

Year: 396 Days

Day: 32.8 Hours

Environment

Temp: -1 °C

Axial Tilt: 19 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.04 AU - 1.68 AU

Year: 601 Days

Day: 22.3 Hours

Environment

Temp: -40 °C

Axial Tilt: 91.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.38 AU - 1.92 AU

Year: 803 Days

Day: 25 Hours

Environment

Temp: -69 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,371,324 km

• M1: 28,872 km (0.064 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.45 AU - 2.19 AU

Year: 930 Days

Day: 47.4 Hours

Environment

Temp: -64 °C

Axial Tilt: 3.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,371,324 km

• M1: 431,889 km (0.037 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.64 AU - 2.08 AU

Year: 961 Days

Day: 15.4 Hours

Environment

Temp: -81 °C

Axial Tilt: 45.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.56 AU - 2.38 AU

Year: 1047 Days

Day: 19 Hours

Environment

Temp: -68 °C

Axial Tilt: 152.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,371,324 km

• M1: 237,412 km (0.086 R)

Planet 8 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.06 AU - 2.18 AU

Year: 1169 Days

Day: 38.4 Hours

Environment

Temp: -78 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,371,324 km

• M1: 39,494 km (0.095 R)

Asteroid Belt

Center: 3.73 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690

Radius: 11.7

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 5.28 AU - 5.38 AU

Year: 4661 Days

Day: 12.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 46,371,324 km

• M1: 145,708 km (0.104 R)
• M2: 627,713 km (0.036 R)
• M3: 1,377,647 km (0.108 R)
• M4: 1,984,715 km (0.106 R)
• M5: 2,979,391 km (0.034 R)
• M6: 3,568,059 km (0.094 R)
• M7: 3,957,612 km (0.025 R)
• M8: 5,246,547 km (0.029 R)
• M9: 6,383,940 km (0.025 R)
• M10: 10,344,394 km (0.059 R)
• M11: 10,738,285 km (0.09 R)
• M12: 11,463,386 km (0.09 R)
• M13: 12,220,800 km (0.097 R)
• M14: 13,011,275 km (0.087 R)
• M15: 13,783,050 km (0.099 R)
• M16: 15,248,810 km (0.045 R)
• M17: 15,817,282 km (0.055 R)
• M18: 16,996,562 km (0.07 R)
• M19: 18,424,324 km (0.11 R)
• M20: 21,095,245 km (0.103 R)
• M21: 23,112,123 km (0.098 R)
• M22: 23,560,468 km (0.105 R)
• M23: 24,474,660 km (0.112 R)
• M24: 26,131,008 km (0.064 R)
• M25: 27,276,180 km (0.065 R)
• M26: 28,797,141 km (0.107 R)

Planet 10 - Gas Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.6

Radius: 14.2

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 6.61 AU - 10.87 AU

Year: 9786 Days

Day: 8.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 46,371,324 km

• M1: 176,675 km (0.119 R)
• M2: 979,118 km (0.064 R)
• M3: 1,552,826 km (0.096 R)
• M4: 2,040,665 km (0.109 R)
• M5: 2,593,279 km (0.076 R)
• M6: 4,585,624 km (0.105 R)
• M7: 5,253,428 km (0.063 R)
• M8: 9,956,486 km (0.093 R)
• M9: 11,186,031 km (0.089 R)
• M10: 11,948,831 km (0.116 R)
• M11: 13,517,813 km (0.101 R)
• M12: 14,959,488 km (0.103 R)
• M13: 15,953,566 km (0.081 R)
• M14: 18,221,021 km (0.051 R)
• M15: 23,828,248 km (0.108 R)
• M16: 25,368,358 km (0.116 R)
• M17: 26,973,842 km (0.068 R)
• M18: 28,646,197 km (0.101 R)
• M19: 29,764,441 km (0.1 R)
• M20: 33,183,500 km (0.085 R)
• M21: 34,987,651 km (0.046 R)
• M22: 39,533,182 km (0.076 R)
• M23: 45,544,773 km (0.114 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: 554 - 18,411 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit