🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.44 AU - 0.58 AU

Year: 139 Days

Day: 39.5 Hours

Environment

Temp: 224 °C

Axial Tilt: 46.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.66 AU - 0.78 AU

Year: 233 Days

Day: 47.4 Hours

Environment

Temp: 164 °C

Axial Tilt: 5.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.64 AU - 0.92 AU

Year: 262 Days

Day: 14.4 Hours

Environment

Temp: 97 °C

Axial Tilt: 0.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 55,900,317 km

• M1: 196,422 km (0.09 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.02 AU - 1.06 AU

Year: 404 Days

Day: 15.8 Hours

Environment

Temp: -0 °C

Axial Tilt: 48.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.86 AU - 1.3 AU

Year: 427 Days

Day: 17.8 Hours

Environment

Temp: -14 °C

Axial Tilt: 31.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 55,900,317 km

• M1: 30,069 km (0.055 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.28 AU - 1.62 AU

Year: 665 Days

Day: 14.7 Hours

Environment

Temp: -38 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.92 AU - 2.28 AU

Year: 1159 Days

Day: 16.2 Hours

Environment

Temp: -90 °C

Axial Tilt: 43.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,900,317 km

• M1: 1,107,323 km (0.098 R)

Planet 8 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.77 AU - 2.45 AU

Year: 1167 Days

Day: 30.5 Hours

Environment

Temp: -88 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.9

Radius: 11.2

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.44 AU - 5.46 AU

Year: 3575 Days

Day: 8.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 120.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,900,317 km

• M1: 139,276 km (0.085 R)
• M2: 832,213 km (0.057 R)
• M3: 1,176,737 km (0.041 R)
• M4: 1,573,171 km (0.12 R)
• M5: 2,043,657 km (0.06 R)
• M6: 2,434,705 km (0.049 R)
• M7: 2,996,445 km (0.095 R)
• M8: 3,646,897 km (0.106 R)
• M9: 4,156,427 km (0.05 R)
• M10: 5,262,703 km (0.118 R)
• M11: 5,581,497 km (0.11 R)
• M12: 5,909,864 km (0.09 R)
• M13: 8,062,128 km (0.084 R)
• M14: 8,605,468 km (0.037 R)
• M15: 8,905,561 km (0.096 R)
• M16: 9,166,909 km (0.093 R)
• M17: 10,204,220 km (0.105 R)
• M18: 10,744,119 km (0.114 R)
• M19: 11,055,432 km (0.093 R)

Planet 10 - Ice Giant

Semi-Major Axis: 12.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 429.3

Radius: 6.7

Gravity: 9.56 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 9.56 AU - 14.52 AU

Year: 15909 Days

Day: 21.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 55,900,317 km

• M1: 85,271 km (0.044 R)
• M2: 333,902 km (0.101 R)
• M3: 1,339,200 km (0.112 R)
• M4: 1,973,046 km (0.082 R)
• M5: 2,406,132 km (0.069 R)
• M6: 3,036,089 km (0.101 R)
• M7: 3,973,469 km (0.114 R)
• M8: 5,006,891 km (0.116 R)
• M9: 5,621,738 km (0.038 R)
• M10: 5,978,978 km (0.095 R)
• M11: 7,357,522 km (0.108 R)
• M12: 7,519,537 km (0.059 R)
• M13: 8,969,440 km (0.104 R)
• M14: 10,500,125 km (0.09 R)
• M15: 11,086,848 km (0.105 R)
• M16: 12,204,344 km (0.038 R)
• M17: 13,050,918 km (0.12 R)
• M18: 16,662,360 km (0.093 R)
• M19: 17,214,377 km (0.114 R)
• M20: 17,525,091 km (0.082 R)
• M21: 18,091,170 km (0.093 R)
• M22: 19,910,429 km (0.102 R)
• M23: 20,110,442 km (0.069 R)
• M24: 21,126,062 km (0.092 R)
• M25: 22,874,562 km (0.064 R)
• M26: 24,250,114 km (0.101 R)
• M27: 24,618,723 km (0.12 R)
• M28: 25,064,824 km (0.062 R)
• M29: 25,741,455 km (0.048 R)
• M30: 29,991,381 km (0.113 R)
• M31: 30,566,136 km (0.087 R)
• M32: 31,313,228 km (0.091 R)
• M33: 32,153,818 km (0.092 R)
• M34: 32,663,498 km (0.104 R)
• M35: 33,608,358 km (0.073 R)
• M36: 35,985,020 km (0.094 R)
• M37: 37,067,510 km (0.086 R)
• M38: 38,814,065 km (0.113 R)
• M39: 39,749,650 km (0.117 R)
• M40: 40,411,172 km (0.104 R)
• M41: 41,943,653 km (0.051 R)
• M42: 42,428,350 km (0.107 R)
• M43: 44,694,309 km (0.1 R)
• M44: 48,984,327 km (0.082 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 461 - 10,760 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit