🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.46

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.47 AU - 0.73 AU

Year: 174 Days

Day: 22.1 Hours

Environment

Temp: 211 °C

Axial Tilt: 33.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 91,535,337 km

• M1: 37,250 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.72 AU - 1.18 AU

Year: 347 Days

Day: 42.8 Hours

Environment

Temp: 15 °C

Axial Tilt: 27.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.97 AU - 1.09 AU

Year: 392 Days

Day: 25.5 Hours

Environment

Temp: 23 °C

Axial Tilt: 12.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 91,535,337 km

• M1: 44,281 km (0.08 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.11 AU - 1.13 AU

Year: 444 Days

Day: 46.6 Hours

Environment

Temp: -4 °C

Axial Tilt: 25.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.02 AU - 1.36 AU

Year: 486 Days

Day: 33.2 Hours

Environment

Temp: 8 °C

Axial Tilt: 24.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.31 AU - 1.57 AU

Year: 648 Days

Day: 22.3 Hours

Environment

Temp: -48 °C

Axial Tilt: 47.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,535,337 km

• M1: 152,739 km (0.115 R)
• M2: 317,596 km (0.1 R)

Planet 7 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.67 AU - 2.01 AU

Year: 935 Days

Day: 36.2 Hours

Environment

Temp: -68 °C

Axial Tilt: 27.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.4

Radius: 12.8

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 6 AU - 9.66 AU

Year: 8211 Days

Day: 5.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 91,535,337 km

• M1: 159,471 km (0.078 R)
• M2: 562,787 km (0.107 R)
• M3: 1,119,291 km (0.043 R)
• M4: 1,572,124 km (0.098 R)
• M5: 2,181,137 km (0.056 R)
• M6: 2,728,216 km (0.12 R)
• M7: 3,344,111 km (0.079 R)
• M8: 4,001,145 km (0.053 R)
• M9: 5,117,444 km (0.112 R)
• M10: 5,829,231 km (0.096 R)
• M11: 6,328,289 km (0.1 R)
• M12: 11,616,873 km (0.074 R)
• M13: 12,518,200 km (0.058 R)
• M14: 14,822,905 km (0.057 R)
• M15: 15,440,595 km (0.039 R)
• M16: 16,926,849 km (0.088 R)
• M17: 19,441,590 km (0.074 R)
• M18: 21,484,349 km (0.049 R)
• M19: 23,251,548 km (0.116 R)
• M20: 23,750,008 km (0.081 R)
• M21: 24,425,592 km (0.051 R)
• M22: 25,375,389 km (0.066 R)
• M23: 25,815,207 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.7

Radius: 12.5

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 7.77 AU - 12.69 AU

Year: 12261 Days

Day: 7.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 91,535,337 km

• M1: 155,432 km (0.066 R)
• M2: 1,244,355 km (0.098 R)
• M3: 1,756,129 km (0.07 R)
• M4: 2,241,574 km (0.074 R)
• M5: 9,570,524 km (0.117 R)
• M6: 10,957,595 km (0.088 R)
• M7: 13,158,778 km (0.118 R)
• M8: 14,127,275 km (0.056 R)
• M9: 20,556,842 km (0.105 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 775.8

Radius: 4.7

Gravity: 35.12 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 14.15 AU - 18.57 AU

Year: 24797 Days

Day: 22.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 148.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 91,535,337 km

• M1: 58,493 km (0.084 R)
• M2: 314,904 km (0.093 R)
• M3: 476,918 km (0.065 R)
• M4: 726,298 km (0.078 R)
• M5: 1,006,195 km (0.115 R)
• M6: 1,276,219 km (0.098 R)
• M7: 1,703,621 km (0.043 R)
• M8: 2,066,545 km (0.108 R)
• M9: 2,266,408 km (0.112 R)
• M10: 2,553,037 km (0.055 R)
• M11: 4,580,238 km (0.113 R)
• M12: 5,238,169 km (0.068 R)
• M13: 6,455,896 km (0.113 R)
• M14: 6,982,032 km (0.12 R)
• M15: 7,382,356 km (0.111 R)
• M16: 9,079,095 km (0.102 R)
• M17: 10,365,936 km (0.104 R)
• M18: 13,831,969 km (0.1 R)
• M19: 14,704,124 km (0.037 R)
• M20: 16,733,270 km (0.092 R)
• M21: 19,230,657 km (0.1 R)
• M22: 20,215,310 km (0.063 R)
• M23: 21,129,802 km (0.05 R)
• M24: 29,978,964 km (0.102 R)
• M25: 33,495,562 km (0.084 R)
• M26: 38,342,383 km (0.082 R)
• M27: 40,056,326 km (0.112 R)
• M28: 40,532,496 km (0.063 R)
• M29: 40,691,967 km (0.029 R)
• M30: 43,971,751 km (0.064 R)
• M31: 51,051,470 km (0.11 R)
• M32: 53,123,550 km (0.107 R)
• M33: 59,881,784 km (0.11 R)
• M34: 60,921,489 km (0.094 R)
• M35: 69,905,739 km (0.047 R)
• M36: 85,367,427 km (0.1 R)
• M37: 88,281,593 km (0.094 R)
• M38: 89,627,675 km (0.096 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 467 - 12,134 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit