🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.6 AU - 0.9 AU

Year: 242 Days

Day: 35.2 Hours

Environment

Temp: 100 °C

Axial Tilt: 11.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 106,386,208 km

• M1: 29,022 km (0.098 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.05 AU - 1.39 AU

Year: 502 Days

Day: 37.1 Hours

Environment

Temp: 5 °C

Axial Tilt: 15.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.1 AU - 1.4 AU

Year: 521 Days

Day: 12.3 Hours

Environment

Temp: -8 °C

Axial Tilt: 17.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 106,386,208 km

• M1: 287,976 km (0.108 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.55 AU - 1.73 AU

Year: 783 Days

Day: 43.9 Hours

Environment

Temp: -50 °C

Axial Tilt: 42.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 106,386,208 km

• M1: 134,339 km (0.097 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.77 AU - 2.93 AU

Year: 1343 Days

Day: 16.8 Hours

Environment

Temp: -96 °C

Axial Tilt: 0.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 106,386,208 km

• M1: 251,923 km (0.091 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.77 AU - 4.29 AU

Year: 2472 Days

Day: 20.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 22.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.91 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.8

Radius: 14.1

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 8.28 AU - 8.28 AU

Year: 8882 Days

Day: 5.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 106,386,208 km

• M1: 175,329 km (0.107 R)
• M2: 1,039,855 km (0.098 R)
• M3: 1,483,712 km (0.088 R)
• M4: 2,872,728 km (0.093 R)
• M5: 5,059,998 km (0.051 R)
• M6: 5,635,202 km (0.111 R)
• M7: 6,986,669 km (0.113 R)
• M8: 8,153,982 km (0.089 R)
• M9: 9,278,808 km (0.051 R)
• M10: 10,368,479 km (0.072 R)
• M11: 11,541,625 km (0.084 R)
• M12: 16,629,898 km (0.081 R)
• M13: 20,871,297 km (0.107 R)
• M14: 22,204,513 km (0.1 R)
• M15: 29,642,968 km (0.112 R)
• M16: 31,326,393 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 210.3

Radius: 8

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 9.29 AU - 15.13 AU

Year: 15905 Days

Day: 18.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 106,386,208 km

• M1: 99,782 km (0.081 R)
• M2: 461,809 km (0.095 R)
• M3: 745,895 km (0.056 R)
• M4: 1,074,861 km (0.066 R)
• M5: 1,936,245 km (0.097 R)
• M6: 3,041,474 km (0.101 R)
• M7: 3,570,303 km (0.059 R)
• M8: 4,350,456 km (0.038 R)
• M9: 5,271,231 km (0.098 R)
• M10: 5,862,441 km (0.091 R)
• M11: 7,060,122 km (0.095 R)
• M12: 7,333,736 km (0.115 R)
• M13: 9,737,924 km (0.066 R)
• M14: 13,085,475 km (0.096 R)
• M15: 13,619,091 km (0.053 R)
• M16: 14,540,614 km (0.041 R)
• M17: 17,697,129 km (0.064 R)
• M18: 18,943,279 km (0.117 R)
• M19: 20,403,953 km (0.069 R)
• M20: 24,248,768 km (0.074 R)
• M21: 25,417,127 km (0.043 R)
• M22: 28,255,747 km (0.058 R)
• M23: 38,870,613 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 963.7

Radius: 4.1

Gravity: 57.33 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 16.95 AU - 18.55 AU

Year: 27877 Days

Day: 20.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 106,386,208 km

• M1: 51,013 km (0.107 R)
• M2: 306,825 km (0.095 R)
• M3: 454,628 km (0.075 R)
• M4: 681,568 km (0.072 R)
• M5: 839,394 km (0.071 R)
• M6: 1,078,601 km (0.089 R)
• M7: 1,230,143 km (0.07 R)
• M8: 1,431,053 km (0.096 R)
• M9: 2,007,603 km (0.093 R)
• M10: 2,461,035 km (0.088 R)
• M11: 3,067,953 km (0.087 R)
• M12: 3,343,064 km (0.041 R)
• M13: 3,568,208 km (0.096 R)
• M14: 4,267,429 km (0.051 R)
• M15: 4,768,283 km (0.102 R)
• M16: 6,407,277 km (0.095 R)
• M17: 6,654,263 km (0.09 R)
• M18: 7,114,875 km (0.106 R)
• M19: 7,817,087 km (0.112 R)
• M20: 8,387,953 km (0.108 R)
• M21: 8,623,868 km (0.084 R)
• M22: 9,047,380 km (0.118 R)
• M23: 10,673,658 km (0.1 R)
• M24: 10,950,714 km (0.081 R)
• M25: 12,638,028 km (0.104 R)
• M26: 13,026,384 km (0.11 R)
• M27: 13,263,347 km (0.089 R)
• M28: 13,664,419 km (0.055 R)
• M29: 15,971,667 km (0.091 R)
• M30: 16,702,153 km (0.092 R)
• M31: 21,668,653 km (0.053 R)
• M32: 26,639,790 km (0.109 R)
• M33: 34,079,741 km (0.117 R)
• M34: 41,929,291 km (0.119 R)
• M35: 42,966,154 km (0.104 R)
• M36: 45,271,008 km (0.084 R)
• M37: 46,545,582 km (0.038 R)
• M38: 63,753,975 km (0.101 R)
• M39: 76,796,815 km (0.074 R)
• M40: 80,711,642 km (0.097 R)
• M41: 85,858,706 km (0.094 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 225 - 18,969 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit