🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.48 AU - 0.62 AU

Year: 128 Days

Day: 45.1 Hours

Environment

Temp: 297 °C

Axial Tilt: 25.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 57,461,123 km

• M1: 119,230 km (0.063 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.65 AU - 0.81 AU

Year: 195 Days

Day: 26.7 Hours

Environment

Temp: 266 °C

Axial Tilt: 8.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 57,461,123 km

• M1: 142,268 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.73 AU - 1.11 AU

Year: 276 Days

Day: 20.7 Hours

Environment

Temp: 189 °C

Axial Tilt: 0 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.89 AU - 2.59 AU

Year: 1050 Days

Day: 39.3 Hours

Environment

Temp: -8 °C

Axial Tilt: 27.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.38 AU - 3.66 AU

Year: 1644 Days

Day: 33.5 Hours

Environment

Temp: -57 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.28 AU - 5.82 AU

Year: 3554 Days

Day: 36.8 Hours

Environment

Temp: -94 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,461,123 km

• M1: 1,990,549 km (0.093 R)

Planet 7 - Terrestrial

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.38

Radius: 1.14

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 6.18 AU - 6.88 AU

Year: 5226 Days

Day: 17.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,461,123 km

• M1: 3,456,608 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 20.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 32.1

Radius: 4.1

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 18.19 AU - 23.49 AU

Year: 29797 Days

Day: 16.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,461,123 km

• M1: 51,312 km (0.077 R)
• M2: 1,015,770 km (0.075 R)
• M3: 2,236,488 km (0.109 R)
• M4: 5,310,724 km (0.061 R)
• M5: 6,703,331 km (0.115 R)
• M6: 7,168,132 km (0.025 R)
• M7: 9,683,919 km (0.092 R)
• M8: 10,046,245 km (0.105 R)
• M9: 17,007,932 km (0.027 R)

Planet 9 - Ice Giant

Semi-Major Axis: 21.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 110.7

Radius: 3.6

Gravity: 8.54 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 20.34 AU - 22 AU

Year: 30507 Days

Day: 18.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,461,123 km

• M1: 46,226 km (0.094 R)
• M2: 343,926 km (0.107 R)
• M3: 575,054 km (0.095 R)
• M4: 1,411,007 km (0.101 R)
• M5: 1,526,347 km (0.106 R)
• M6: 1,711,400 km (0.117 R)
• M7: 3,151,878 km (0.099 R)
• M8: 4,468,788 km (0.119 R)
• M9: 5,145,868 km (0.099 R)
• M10: 5,351,265 km (0.085 R)
• M11: 6,781,271 km (0.112 R)
• M12: 19,934,814 km (0.063 R)
• M13: 20,271,409 km (0.093 R)
• M14: 23,754,795 km (0.116 R)
• M15: 26,386,970 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 22.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 107.9

Radius: 7.9

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 17.36 AU - 27.32 AU

Year: 33071 Days

Day: 22.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,461,123 km

• M1: 98,435 km (0.057 R)
• M2: 395,238 km (0.075 R)
• M3: 660,475 km (0.074 R)
• M4: 1,278,314 km (0.118 R)
• M5: 2,413,014 km (0.045 R)
• M6: 2,910,576 km (0.104 R)
• M7: 3,633,583 km (0.046 R)
• M8: 4,348,212 km (0.096 R)
• M9: 4,787,431 km (0.103 R)
• M10: 6,723,676 km (0.029 R)
• M11: 8,257,354 km (0.06 R)
• M12: 9,486,749 km (0.098 R)
• M13: 9,957,683 km (0.069 R)
• M14: 10,833,728 km (0.106 R)
• M15: 16,815,698 km (0.108 R)
• M16: 23,343,102 km (0.097 R)
• M17: 27,952,961 km (0.067 R)
• M18: 30,696,286 km (0.098 R)
• M19: 34,831,171 km (0.11 R)
• M20: 42,757,764 km (0.105 R)
• M21: 49,435,215 km (0.118 R)
• M22: 52,451,856 km (0.097 R)
• M23: 54,418,918 km (0.118 R)

Kuiper Belt

Range: 35 - 61 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 182 - 11,355 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit