🌌 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: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.82

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.77 AU - 0.99 AU

Year: 289 Days

Day: 47 Hours

Environment

Temp: 136 °C

Axial Tilt: 12.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.2 AU - 1.26 AU

Year: 477 Days

Day: 41.7 Hours

Environment

Temp: 19 °C

Axial Tilt: 7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.11 AU - 2.45 AU

Year: 1204 Days

Day: 22.2 Hours

Environment

Temp: -68 °C

Axial Tilt: 28.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 95,540,144 km

• M1: 111,899 km (0.055 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.29 AU - 3.45 AU

Year: 2164 Days

Day: 24.5 Hours

Environment

Temp: -102 °C

Axial Tilt: 19.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.14 AU - 3.88 AU

Year: 2301 Days

Day: 43.6 Hours

Environment

Temp: -95 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 95,540,144 km

• M1: 1,401,732 km (0.069 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 3.63 AU - 3.97 AU

Year: 2592 Days

Day: 36.6 Hours

Environment

Temp: -119 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 95,540,144 km

• M1: 324,627 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.2

Radius: 11.6

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 6.37 AU - 10.25 AU

Year: 8381 Days

Day: 5.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 95,540,144 km

• M1: 144,362 km (0.053 R)
• M2: 630,705 km (0.088 R)
• M3: 2,408,227 km (0.068 R)
• M4: 2,800,323 km (0.069 R)
• M5: 3,170,428 km (0.094 R)
• M6: 5,293,521 km (0.101 R)
• M7: 6,301,212 km (0.104 R)
• M8: 7,666,292 km (0.045 R)
• M9: 10,285,302 km (0.12 R)
• M10: 13,624,626 km (0.104 R)
• M11: 14,334,019 km (0.1 R)
• M12: 15,380,905 km (0.075 R)
• M13: 18,326,786 km (0.118 R)
• M14: 21,788,780 km (0.066 R)
• M15: 23,673,414 km (0.093 R)
• M16: 25,398,577 km (0.112 R)
• M17: 28,426,139 km (0.102 R)
• M18: 34,533,023 km (0.089 R)
• M19: 36,185,930 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 158.1

Radius: 7.5

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 14 AU - 17.6 AU

Year: 21972 Days

Day: 15.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 95,540,144 km

• M1: 93,349 km (0.094 R)
• M2: 945,010 km (0.074 R)
• M3: 1,891,964 km (0.099 R)
• M4: 2,465,672 km (0.097 R)
• M5: 2,793,441 km (0.11 R)
• M6: 3,126,895 km (0.083 R)
• M7: 7,270,457 km (0.047 R)
• M8: 7,603,461 km (0.102 R)
• M9: 9,086,575 km (0.111 R)
• M10: 11,914,124 km (0.043 R)
• M11: 17,621,283 km (0.11 R)
• M12: 18,683,278 km (0.049 R)
• M13: 19,787,310 km (0.095 R)
• M14: 24,086,155 km (0.108 R)
• M15: 24,454,764 km (0.108 R)
• M16: 28,658,913 km (0.117 R)
• M17: 34,356,647 km (0.106 R)
• M18: 35,770,945 km (0.108 R)
• M19: 37,346,510 km (0.107 R)
• M20: 49,099,517 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607

Radius: 8

Gravity: 9.48 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 16.53 AU - 22.27 AU

Year: 29894 Days

Day: 17.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 95,540,144 km

• M1: 99,483 km (0.117 R)
• M2: 897,886 km (0.077 R)
• M3: 1,322,296 km (0.112 R)
• M4: 3,719,901 km (0.077 R)
• M5: 4,369,455 km (0.119 R)
• M6: 6,207,713 km (0.039 R)
• M7: 10,654,510 km (0.1 R)
• M8: 12,611,400 km (0.07 R)
• M9: 14,068,483 km (0.078 R)
• M10: 15,805,763 km (0.049 R)
• M11: 20,001,535 km (0.08 R)
• M12: 25,828,970 km (0.09 R)
• M13: 29,451,931 km (0.066 R)
• M14: 29,976,870 km (0.092 R)
• M15: 35,426,421 km (0.119 R)
• M16: 42,827,926 km (0.063 R)
• M17: 51,386,270 km (0.071 R)
• M18: 52,915,160 km (0.045 R)
• M19: 53,302,170 km (0.08 R)
• M20: 62,731,025 km (0.055 R)
• M21: 71,311,809 km (0.059 R)
• M22: 82,705,632 km (0.067 R)
• M23: 86,132,470 km (0.115 R)
• M24: 92,705,501 km (0.089 R)

Kuiper Belt

Range: 31.4 - 50.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 13,169 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit