🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.43 AU - 0.65 AU

Year: 149 Days

Day: 21.6 Hours

Environment

Temp: 141 °C

Axial Tilt: 30 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.49 AU - 0.59 AU

Year: 149 Days

Day: 33.2 Hours

Environment

Temp: 234 °C

Axial Tilt: 2.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 38,669,024 km

• M1: 32,164 km (0.097 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.46 AU - 0.76 AU

Year: 179 Days

Day: 19.8 Hours

Environment

Temp: 204 °C

Axial Tilt: 36.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.11 AU - 1.35 AU

Year: 511 Days

Day: 45.7 Hours

Environment

Temp: 7 °C

Axial Tilt: 6.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.4 AU - 1.66 AU

Year: 709 Days

Day: 48 Hours

Environment

Temp: -53 °C

Axial Tilt: 16.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.9 AU - 1.96 AU

Year: 1005 Days

Day: 25.3 Hours

Environment

Temp: -76 °C

Axial Tilt: 23.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.38 AU - 2.84 AU

Year: 1580 Days

Day: 13.1 Hours

Environment

Temp: -97 °C

Axial Tilt: 36.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.31 AU - 3.71 AU

Year: 1957 Days

Day: 17 Hours

Environment

Temp: -110 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.1

Radius: 10.7

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 6.38 AU - 6.48 AU

Year: 6110 Days

Day: 7.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 38,669,024 km

• M1: 133,142 km (0.117 R)
• M2: 483,650 km (0.106 R)
• M3: 857,345 km (0.058 R)
• M4: 1,208,152 km (0.066 R)
• M5: 1,605,036 km (0.119 R)
• M6: 2,744,074 km (0.079 R)
• M7: 3,530,959 km (0.103 R)
• M8: 3,880,718 km (0.105 R)
• M9: 4,985,499 km (0.104 R)
• M10: 6,089,531 km (0.087 R)
• M11: 8,120,920 km (0.104 R)
• M12: 10,006,901 km (0.118 R)
• M13: 10,425,924 km (0.098 R)
• M14: 11,908,290 km (0.089 R)
• M15: 13,191,839 km (0.092 R)
• M16: 14,624,688 km (0.098 R)
• M17: 15,104,299 km (0.096 R)
• M18: 15,532,597 km (0.079 R)
• M19: 15,906,143 km (0.08 R)
• M20: 16,542,084 km (0.087 R)
• M21: 17,128,807 km (0.115 R)
• M22: 17,797,060 km (0.075 R)
• M23: 18,275,025 km (0.108 R)
• M24: 25,123,317 km (0.091 R)
• M25: 25,985,898 km (0.097 R)
• M26: 27,497,585 km (0.095 R)
• M27: 29,350,055 km (0.106 R)
• M28: 33,302,281 km (0.041 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 56.6

Radius: 6.5

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 13.5 AU - 19.58 AU

Year: 25208 Days

Day: 23.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,669,024 km

• M1: 87,664 km (0.043 R)
• M2: 358,287 km (0.031 R)
• M3: 983,606 km (0.06 R)
• M4: 2,740,334 km (0.083 R)
• M5: 3,504,181 km (0.111 R)
• M6: 3,739,648 km (0.088 R)
• M7: 5,444,315 km (0.04 R)
• M8: 8,969,440 km (0.111 R)
• M9: 9,821,848 km (0.101 R)
• M10: 11,634,825 km (0.074 R)
• M11: 12,538,246 km (0.102 R)
• M12: 23,116,013 km (0.12 R)
• M13: 26,198,776 km (0.113 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: 501 - 14,228 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit