🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.97 AU - 1.01 AU

Year: 346 Days

Day: 30.7 Hours

Environment

Temp: 154 °C

Axial Tilt: 34.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 81,809,028 km

• M1: 62,532 km (0.03 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.17 AU - 1.59 AU

Year: 570 Days

Day: 12.8 Hours

Environment

Temp: -3 °C

Axial Tilt: 18.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.6 AU - 2.04 AU

Year: 863 Days

Day: 16.7 Hours

Environment

Temp: -47 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,809,028 km

• M1: 30,967 km (0.067 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.56 AU - 2.44 AU

Year: 994 Days

Day: 35.8 Hours

Environment

Temp: -56 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.31

Radius: 1.79

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.91 AU - 3.01 AU

Year: 1356 Days

Day: 31.6 Hours

Environment

Temp: -79 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,809,028 km

• M1: 1,431,502 km (0.113 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.12 AU - 3.48 AU

Year: 2107 Days

Day: 16.1 Hours

Environment

Temp: -91 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 9.69 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 16.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 663.1

Radius: 7.8

Gravity: 10.9 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 13.39 AU - 18.77 AU

Year: 22662 Days

Day: 17.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 81,809,028 km

• M1: 104,270 km (0.113 R)
• M2: 166,802 km (0.113 R)
• M3: 262,395 km (0.081 R)
• M4: 345,721 km (0.092 R)
• M5: 750,682 km (0.113 R)
• M6: 877,092 km (0.086 R)
• M7: 929,601 km (0.117 R)
• M8: 1,297,911 km (0.057 R)
• M9: 1,451,099 km (0.081 R)
• M10: 2,642,347 km (0.086 R)
• M11: 3,242,235 km (0.056 R)
• M12: 3,367,149 km (0.095 R)
• M13: 3,621,914 km (0.108 R)
• M14: 3,882,962 km (0.088 R)
• M15: 4,515,612 km (0.071 R)
• M16: 5,673,499 km (0.095 R)
• M17: 9,346,277 km (0.103 R)
• M18: 9,524,747 km (0.072 R)
• M19: 10,006,153 km (0.116 R)
• M20: 10,311,033 km (0.081 R)
• M21: 11,055,133 km (0.12 R)
• M22: 11,945,091 km (0.101 R)
• M23: 12,594,794 km (0.111 R)
• M24: 12,660,468 km (0.087 R)
• M25: 12,924,059 km (0.069 R)
• M26: 13,658,136 km (0.092 R)
• M27: 14,750,051 km (0.073 R)
• M28: 14,819,165 km (0.119 R)
• M29: 15,657,661 km (0.08 R)
• M30: 16,011,610 km (0.113 R)
• M31: 16,944,053 km (0.102 R)
• M32: 18,264,105 km (0.071 R)
• M33: 19,464,927 km (0.07 R)
• M34: 20,536,646 km (0.092 R)
• M35: 21,548,676 km (0.087 R)
• M36: 22,577,011 km (0.118 R)
• M37: 23,459,639 km (0.092 R)
• M38: 23,540,422 km (0.083 R)
• M39: 24,027,064 km (0.093 R)
• M40: 25,756,565 km (0.069 R)
• M41: 27,781,671 km (0.068 R)
• M42: 28,554,344 km (0.1 R)
• M43: 29,246,982 km (0.117 R)
• M44: 29,508,180 km (0.095 R)
• M45: 29,682,611 km (0.106 R)
• M46: 30,472,338 km (0.083 R)
• M47: 31,625,289 km (0.104 R)
• M48: 32,431,771 km (0.059 R)
• M49: 33,517,553 km (0.051 R)
• M50: 33,608,508 km (0.111 R)
• M51: 33,699,613 km (0.1 R)
• M52: 33,882,123 km (0.115 R)
• M53: 34,615,302 km (0.085 R)
• M54: 35,353,567 km (0.108 R)
• M55: 35,446,168 km (0.115 R)
• M56: 38,168,251 km (0.094 R)
• M57: 39,410,213 km (0.082 R)
• M58: 39,506,254 km (0.09 R)
• M59: 40,181,090 km (0.117 R)
• M60: 40,277,731 km (0.118 R)
• M61: 40,471,460 km (0.067 R)
• M62: 40,859,666 km (0.07 R)
• M63: 41,541,982 km (0.107 R)
• M64: 43,512,186 km (0.107 R)
• M65: 43,710,852 km (0.088 R)
• M66: 44,308,795 km (0.1 R)
• M67: 45,411,930 km (0.111 R)
• M68: 45,714,417 km (0.061 R)
• M69: 45,815,395 km (0.116 R)
• M70: 48,569,193 km (0.119 R)
• M71: 49,291,900 km (0.058 R)
• M72: 50,122,168 km (0.094 R)
• M73: 54,663,511 km (0.095 R)
• M74: 54,985,146 km (0.039 R)
• M75: 56,386,579 km (0.072 R)
• M76: 58,565,322 km (0.096 R)
• M77: 63,454,779 km (0.074 R)
• M78: 65,378,608 km (0.066 R)
• M79: 68,357,849 km (0.116 R)
• M80: 70,562,772 km (0.034 R)
• M81: 73,499,379 km (0.108 R)
• M82: 73,617,711 km (0.096 R)
• M83: 76,236,272 km (0.042 R)
• M84: 77,436,495 km (0.036 R)
• M85: 78,159,652 km (0.068 R)
• M86: 78,522,127 km (0.074 R)
• M87: 80,099,038 km (0.106 R)
• M88: 80,220,811 km (0.117 R)
• M89: 80,464,506 km (0.12 R)
• M90: 81,809,092 km (0.054 R)

Kuiper Belt

Range: 31.2 - 51.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 13,295 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit