🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.03 AU - 1.05 AU

Year: 384 Days

Day: 40.2 Hours

Environment

Temp: 21 °C

Axial Tilt: 2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.36

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.82 AU - 1.34 AU

Year: 406 Days

Day: 39.5 Hours

Environment

Temp: 37 °C

Axial Tilt: 36.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 98,768,752 km

• M1: 40,990 km (0.081 R)
• M2: 58,642 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.46 AU - 1.52 AU

Year: 658 Days

Day: 41 Hours

Environment

Temp: -29 °C

Axial Tilt: 45.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 98,768,752 km

• M1: 135,087 km (0.114 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.72 AU - 2.12 AU

Year: 962 Days

Day: 27.5 Hours

Environment

Temp: -65 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.54 AU - 2.36 AU

Year: 985 Days

Day: 32.3 Hours

Environment

Temp: -67 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Ice Giant

Semi-Major Axis: 12.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 495.4

Radius: 7.6

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 9.68 AU - 16.04 AU

Year: 16678 Days

Day: 15.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 98,768,752 km

• M1: 94,546 km (0.107 R)
• M2: 720,463 km (0.096 R)
• M3: 1,016,069 km (0.094 R)
• M4: 1,859,651 km (0.117 R)
• M5: 2,597,019 km (0.112 R)
• M6: 3,080,819 km (0.047 R)
• M7: 5,747,999 km (0.069 R)
• M8: 6,692,710 km (0.109 R)
• M9: 7,289,605 km (0.096 R)
• M10: 9,449,948 km (0.119 R)
• M11: 17,227,840 km (0.098 R)
• M12: 19,941,396 km (0.118 R)
• M13: 23,887,938 km (0.119 R)
• M14: 28,107,944 km (0.109 R)
• M15: 29,207,937 km (0.086 R)
• M16: 31,376,209 km (0.037 R)
• M17: 32,439,849 km (0.086 R)
• M18: 36,159,002 km (0.12 R)
• M19: 39,195,989 km (0.064 R)
• M20: 48,065,347 km (0.082 R)
• M21: 53,212,411 km (0.096 R)
• M22: 56,090,674 km (0.079 R)
• M23: 60,509,496 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 266.1

Radius: 4.5

Gravity: 13.14 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 14.38 AU - 22.58 AU

Year: 28730 Days

Day: 18.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 98,768,752 km

• M1: 60,438 km (0.074 R)
• M2: 245,640 km (0.109 R)
• M3: 595,998 km (0.041 R)
• M4: 915,240 km (0.084 R)
• M5: 1,107,323 km (0.089 R)
• M6: 1,415,495 km (0.071 R)
• M7: 18,744,464 km (0.047 R)
• M8: 19,451,912 km (0.112 R)
• M9: 22,956,242 km (0.065 R)
• M10: 25,121,073 km (0.039 R)
• M11: 27,871,130 km (0.117 R)
• M12: 29,025,128 km (0.101 R)
• M13: 32,425,189 km (0.088 R)
• M14: 36,216,897 km (0.109 R)
• M15: 46,084,522 km (0.116 R)
• M16: 62,152,380 km (0.091 R)
• M17: 62,737,457 km (0.088 R)
• M18: 63,918,981 km (0.091 R)
• M19: 65,517,135 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 635.4

Radius: 3.4

Gravity: 54.97 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 17.04 AU - 21.6 AU

Year: 30711 Days

Day: 18.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 98,768,752 km

• M1: 43,084 km (0.12 R)
• M2: 163,211 km (0.046 R)
• M3: 279,898 km (0.098 R)
• M4: 657,333 km (0.045 R)
• M5: 1,424,172 km (0.117 R)
• M6: 1,584,840 km (0.112 R)
• M7: 1,797,568 km (0.037 R)
• M8: 2,815,881 km (0.113 R)
• M9: 3,069,599 km (0.099 R)
• M10: 3,338,426 km (0.094 R)
• M11: 4,385,013 km (0.036 R)
• M12: 4,764,543 km (0.047 R)
• M13: 5,809,035 km (0.084 R)
• M14: 7,149,731 km (0.11 R)
• M15: 7,674,670 km (0.054 R)
• M16: 8,394,984 km (0.098 R)
• M17: 8,683,708 km (0.038 R)
• M18: 10,622,945 km (0.026 R)
• M19: 12,531,814 km (0.049 R)
• M20: 14,410,164 km (0.108 R)
• M21: 14,574,573 km (0.047 R)
• M22: 14,740,327 km (0.119 R)
• M23: 16,467,883 km (0.107 R)
• M24: 17,380,281 km (0.05 R)
• M25: 21,048,869 km (0.088 R)
• M26: 21,367,213 km (0.039 R)
• M27: 21,688,699 km (0.117 R)
• M28: 23,685,532 km (0.093 R)
• M29: 25,801,743 km (0.118 R)
• M30: 26,905,476 km (0.108 R)
• M31: 28,425,690 km (0.116 R)
• M32: 33,905,460 km (0.107 R)
• M33: 37,977,065 km (0.031 R)
• M34: 49,461,394 km (0.1 R)
• M35: 50,023,733 km (0.06 R)
• M36: 66,181,350 km (0.097 R)
• M37: 67,321,585 km (0.111 R)
• M38: 73,950,267 km (0.086 R)
• M39: 74,685,241 km (0.049 R)
• M40: 78,179,698 km (0.093 R)
• M41: 79,197,711 km (0.119 R)
• M42: 91,829,606 km (0.081 R)
• M43: 98,472,798 km (0.082 R)

Kuiper Belt

Range: 30.3 - 49.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 171 - 17,433 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit