🌌 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: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.68

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.48 AU - 0.58 AU

Year: 144 Days

Day: 23.9 Hours

Environment

Temp: 233 °C

Axial Tilt: 1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 58,330,555 km

• M1: 134,638 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.48 AU - 0.76 AU

Year: 182 Days

Day: 13.6 Hours

Environment

Temp: 150 °C

Axial Tilt: 39.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 58,330,555 km

• M1: 76,295 km (0.085 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.94 AU - 0.98 AU

Year: 351 Days

Day: 12.7 Hours

Environment

Temp: 12 °C

Axial Tilt: 42 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.24 AU - 1.48 AU

Year: 591 Days

Day: 37.4 Hours

Environment

Temp: -43 °C

Axial Tilt: 5.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.33 AU - 3.43 AU

Year: 1822 Days

Day: 23.3 Hours

Environment

Temp: -112 °C

Axial Tilt: 43.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.61 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 8.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.6

Radius: 10.4

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 7.42 AU - 9.26 AU

Year: 8978 Days

Day: 7.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,330,555 km

• M1: 129,402 km (0.099 R)
• M2: 457,171 km (0.114 R)
• M3: 984,952 km (0.118 R)
• M4: 1,397,992 km (0.108 R)
• M5: 2,001,320 km (0.113 R)
• M6: 3,966,438 km (0.044 R)
• M7: 4,293,758 km (0.095 R)
• M8: 4,974,428 km (0.056 R)
• M9: 5,725,410 km (0.113 R)
• M10: 6,759,879 km (0.085 R)
• M11: 7,415,118 km (0.072 R)
• M12: 9,863,137 km (0.054 R)
• M13: 11,145,640 km (0.056 R)
• M14: 11,596,977 km (0.088 R)
• M15: 13,024,439 km (0.12 R)
• M16: 13,638,389 km (0.077 R)
• M17: 14,388,772 km (0.063 R)
• M18: 16,870,750 km (0.101 R)
• M19: 17,939,029 km (0.049 R)
• M20: 21,033,012 km (0.088 R)
• M21: 22,112,809 km (0.113 R)
• M22: 27,614,121 km (0.105 R)
• M23: 29,856,593 km (0.112 R)
• M24: 33,340,877 km (0.069 R)
• M25: 34,701,320 km (0.047 R)
• M26: 36,535,540 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 964.9

Radius: 7

Gravity: 19.69 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 15.03 AU - 16.55 AU

Year: 23390 Days

Day: 24.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 58,330,555 km

• M1: 90,208 km (0.092 R)
• M2: 309,518 km (0.083 R)
• M3: 594,053 km (0.097 R)
• M4: 1,108,071 km (0.065 R)
• M5: 2,299,918 km (0.109 R)
• M6: 4,686,752 km (0.11 R)
• M7: 5,655,099 km (0.102 R)
• M8: 7,660,309 km (0.1 R)
• M9: 10,160,687 km (0.084 R)
• M10: 10,945,328 km (0.098 R)
• M11: 12,634,587 km (0.067 R)
• M12: 13,541,300 km (0.055 R)
• M13: 14,010,589 km (0.095 R)
• M14: 14,899,200 km (0.06 R)
• M15: 16,521,439 km (0.065 R)
• M16: 16,967,091 km (0.115 R)
• M17: 20,112,835 km (0.079 R)
• M18: 20,416,669 km (0.082 R)
• M19: 21,242,150 km (0.062 R)
• M20: 22,521,810 km (0.061 R)
• M21: 29,178,167 km (0.115 R)
• M22: 30,623,731 km (0.12 R)
• M23: 32,392,876 km (0.079 R)
• M24: 32,950,726 km (0.07 R)
• M25: 33,942,261 km (0.043 R)
• M26: 35,984,721 km (0.101 R)
• M27: 37,953,279 km (0.059 R)
• M28: 43,608,378 km (0.101 R)
• M29: 49,615,480 km (0.086 R)
• M30: 53,008,510 km (0.104 R)
• M31: 62,806,123 km (0.093 R)
• M32: 63,891,156 km (0.107 R)
• M33: 76,910,659 km (0.108 R)
• M34: 82,215,699 km (0.072 R)
• M35: 84,825,583 km (0.036 R)
• M36: 93,547,438 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 128.9

Radius: 3.6

Gravity: 9.95 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 18.78 AU - 19.28 AU

Year: 30947 Days

Day: 21.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,330,555 km

• M1: 45,029 km (0.038 R)
• M2: 432,039 km (0.087 R)
• M3: 999,912 km (0.085 R)
• M4: 1,217,727 km (0.051 R)
• M5: 3,069,449 km (0.081 R)
• M6: 5,427,261 km (0.103 R)
• M7: 10,613,221 km (0.059 R)
• M8: 11,833,790 km (0.115 R)
• M9: 13,405,166 km (0.062 R)
• M10: 16,954,525 km (0.117 R)
• M11: 34,099,787 km (0.107 R)
• M12: 34,838,352 km (0.084 R)
• M13: 43,967,263 km (0.096 R)
• M14: 55,239,463 km (0.118 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: 359 - 12,038 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit