🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.49 AU - 0.77 AU

Year: 181 Days

Day: 21.9 Hours

Environment

Temp: 162 °C

Axial Tilt: 41.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 93,165,661 km

• M1: 17,653 km (0.11 R)
• M2: 154,834 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.56 AU - 0.8 AU

Year: 203 Days

Day: 41 Hours

Environment

Temp: 219 °C

Axial Tilt: 32.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.87 AU - 0.93 AU

Year: 309 Days

Day: 39.3 Hours

Environment

Temp: 161 °C

Axial Tilt: 24 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.85 AU - 2.77 AU

Year: 1270 Days

Day: 33.4 Hours

Environment

Temp: -73 °C

Axial Tilt: 4.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.92 AU - 4.24 AU

Year: 2450 Days

Day: 37 Hours

Environment

Temp: -119 °C

Axial Tilt: 125.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.61 AU - 5.43 AU

Year: 3475 Days

Day: 35.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,165,661 km

• M1: 1,510,639 km (0.037 R)

Asteroid Belt

Center: 5.7 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.3

Radius: 11.6

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 5.48 AU - 8.28 AU

Year: 6526 Days

Day: 5.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 93,165,661 km

• M1: 147,952 km (0.106 R)
• M2: 634,295 km (0.083 R)
• M3: 1,052,571 km (0.065 R)
• M4: 1,574,817 km (0.056 R)
• M5: 2,015,532 km (0.088 R)
• M6: 2,522,071 km (0.116 R)
• M7: 3,151,279 km (0.12 R)
• M8: 3,995,909 km (0.107 R)
• M9: 4,647,258 km (0.086 R)
• M10: 5,065,982 km (0.061 R)
• M11: 5,481,266 km (0.075 R)
• M12: 6,412,214 km (0.117 R)
• M13: 7,100,813 km (0.043 R)
• M14: 9,018,807 km (0.093 R)
• M15: 12,411,238 km (0.114 R)
• M16: 12,862,425 km (0.084 R)
• M17: 13,744,604 km (0.064 R)
• M18: 16,274,603 km (0.092 R)
• M19: 16,694,374 km (0.11 R)
• M20: 19,838,024 km (0.055 R)
• M21: 23,280,720 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 718.8

Radius: 7.8

Gravity: 11.81 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 16.93 AU - 18.05 AU

Year: 26453 Days

Day: 22 Hours

Environment

Temp: -200 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 93,165,661 km

• M1: 100,979 km (0.112 R)
• M2: 658,081 km (0.069 R)
• M3: 1,200,074 km (0.067 R)
• M4: 1,482,515 km (0.104 R)
• M5: 2,251,448 km (0.082 R)
• M6: 2,816,330 km (0.025 R)
• M7: 3,472,167 km (0.057 R)
• M8: 3,918,716 km (0.103 R)
• M9: 5,920,336 km (0.112 R)
• M10: 6,605,644 km (0.109 R)
• M11: 8,243,142 km (0.119 R)
• M12: 8,863,674 km (0.104 R)
• M13: 11,046,456 km (0.109 R)
• M14: 12,154,378 km (0.098 R)
• M15: 12,515,358 km (0.069 R)
• M16: 15,496,993 km (0.061 R)
• M17: 16,794,156 km (0.053 R)
• M18: 17,514,769 km (0.034 R)
• M19: 19,899,808 km (0.108 R)
• M20: 23,037,623 km (0.065 R)
• M21: 25,892,699 km (0.032 R)
• M22: 28,975,163 km (0.108 R)
• M23: 31,071,478 km (0.099 R)
• M24: 33,126,653 km (0.115 R)
• M25: 33,973,527 km (0.046 R)
• M26: 36,005,515 km (0.069 R)
• M27: 40,951,968 km (0.085 R)
• M28: 41,927,197 km (0.086 R)
• M29: 47,391,708 km (0.066 R)
• M30: 48,286,303 km (0.111 R)
• M31: 51,412,151 km (0.096 R)
• M32: 64,826,891 km (0.106 R)
• M33: 71,159,818 km (0.094 R)
• M34: 75,441,458 km (0.117 R)
• M35: 77,645,334 km (0.102 R)
• M36: 85,564,746 km (0.069 R)
• M37: 87,960,855 km (0.082 R)

Kuiper Belt

Range: 30.3 - 46.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 359 - 18,243 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit