🌌 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: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.47 AU - 0.79 AU

Year: 183 Days

Day: 34.4 Hours

Environment

Temp: 148 °C

Axial Tilt: 17.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 79,256,452 km

• M1: 18,550 km (0.107 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.6

Radius: 1.47

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.7 AU - 1.04 AU

Year: 296 Days

Day: 14.9 Hours

Environment

Temp: 146 °C

Axial Tilt: 26.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 79,256,452 km

• M1: 67,169 km (0.054 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.74 AU - 1 AU

Year: 296 Days

Day: 33.9 Hours

Environment

Temp: 163 °C

Axial Tilt: 9.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 79,256,452 km

• M1: 42,336 km (0.106 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.92 AU - 1.34 AU

Year: 439 Days

Day: 36 Hours

Environment

Temp: 12 °C

Axial Tilt: 23.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.49 AU - 3.45 AU

Year: 1869 Days

Day: 16.3 Hours

Environment

Temp: -101 °C

Axial Tilt: 15.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,256,452 km

• M1: 540,348 km (0.108 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 4.25 AU - 4.93 AU

Year: 3592 Days

Day: 15.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 29.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.8 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.2

Radius: 13.7

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 8.26 AU - 13.74 AU

Year: 13325 Days

Day: 6.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 79,256,452 km

• M1: 172,486 km (0.112 R)
• M2: 1,108,969 km (0.11 R)
• M3: 1,645,427 km (0.091 R)
• M4: 2,255,936 km (0.119 R)
• M5: 2,714,753 km (0.067 R)
• M6: 3,575,838 km (0.107 R)
• M7: 4,328,016 km (0.118 R)
• M8: 5,183,417 km (0.059 R)
• M9: 5,726,606 km (0.078 R)
• M10: 8,934,134 km (0.103 R)
• M11: 9,557,359 km (0.103 R)
• M12: 10,660,643 km (0.109 R)
• M13: 11,362,407 km (0.053 R)
• M14: 13,653,798 km (0.085 R)
• M15: 14,341,649 km (0.074 R)
• M16: 15,052,388 km (0.082 R)
• M17: 18,712,599 km (0.116 R)
• M18: 22,737,380 km (0.112 R)
• M19: 24,497,549 km (0.095 R)
• M20: 25,206,044 km (0.118 R)
• M21: 29,293,357 km (0.086 R)
• M22: 29,976,870 km (0.105 R)
• M23: 30,904,527 km (0.105 R)
• M24: 35,318,112 km (0.092 R)
• M25: 35,962,580 km (0.087 R)
• M26: 37,010,064 km (0.053 R)
• M27: 41,690,234 km (0.104 R)
• M28: 42,410,248 km (0.025 R)
• M29: 46,905,515 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 477.5

Radius: 5.2

Gravity: 17.66 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 13.16 AU - 20.72 AU

Year: 25466 Days

Day: 20.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 79,256,452 km

• M1: 68,965 km (0.106 R)
• M2: 246,836 km (0.058 R)
• M3: 736,919 km (0.09 R)
• M4: 978,819 km (0.085 R)
• M5: 1,243,607 km (0.113 R)
• M6: 1,505,254 km (0.079 R)
• M7: 1,711,549 km (0.102 R)
• M8: 2,988,965 km (0.101 R)
• M9: 3,177,160 km (0.101 R)
• M10: 3,759,394 km (0.076 R)
• M11: 5,057,306 km (0.117 R)
• M12: 5,482,762 km (0.113 R)
• M13: 5,765,801 km (0.094 R)
• M14: 7,573,542 km (0.075 R)
• M15: 9,381,432 km (0.109 R)
• M16: 12,123,411 km (0.032 R)
• M17: 14,576,667 km (0.103 R)
• M18: 16,164,200 km (0.06 R)
• M19: 19,491,555 km (0.082 R)
• M20: 29,993,924 km (0.117 R)
• M21: 36,784,770 km (0.097 R)
• M22: 41,839,383 km (0.081 R)
• M23: 44,532,145 km (0.076 R)
• M24: 50,259,499 km (0.07 R)
• M25: 50,787,280 km (0.077 R)
• M26: 51,141,229 km (0.103 R)
• M27: 58,374,735 km (0.079 R)
• M28: 58,957,867 km (0.1 R)
• M29: 64,381,538 km (0.089 R)
• M30: 68,606,930 km (0.069 R)
• M31: 69,256,334 km (0.099 R)
• M32: 73,464,373 km (0.113 R)
• M33: 74,143,996 km (0.104 R)
• M34: 74,827,808 km (0.096 R)
• M35: 77,605,092 km (0.095 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 434 - 16,508 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit