🌌 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: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.47 AU - 0.57 AU

Year: 141 Days

Day: 18.6 Hours

Environment

Temp: 208 °C

Axial Tilt: 16.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.05 AU - 1.31 AU

Year: 483 Days

Day: 14.9 Hours

Environment

Temp: -14 °C

Axial Tilt: 32.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 84,640,442 km

• M1: 519,853 km (0.084 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.7 AU - 2.1 AU

Year: 987 Days

Day: 33 Hours

Environment

Temp: -62 °C

Axial Tilt: 1.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.19 AU - 2.97 AU

Year: 1561 Days

Day: 46.6 Hours

Environment

Temp: -105 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,640,442 km

• M1: 146,905 km (0.069 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.56 AU - 2.64 AU

Year: 1579 Days

Day: 41.8 Hours

Environment

Temp: -107 °C

Axial Tilt: 23.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,640,442 km

• M1: 113,096 km (0.067 R)

Asteroid Belt

Center: 4.03 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.6

Radius: 13.4

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 5.13 AU - 5.77 AU

Year: 4793 Days

Day: 5.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,640,442 km

• M1: 166,652 km (0.115 R)
• M2: 965,953 km (0.118 R)
• M3: 1,522,308 km (0.109 R)
• M4: 2,139,250 km (0.115 R)
• M5: 2,975,202 km (0.079 R)
• M6: 3,770,614 km (0.074 R)
• M7: 4,575,750 km (0.036 R)
• M8: 6,056,619 km (0.114 R)
• M9: 6,757,635 km (0.09 R)
• M10: 7,727,478 km (0.12 R)
• M11: 8,630,900 km (0.104 R)
• M12: 9,108,416 km (0.119 R)
• M13: 9,645,622 km (0.044 R)
• M14: 10,468,709 km (0.103 R)
• M15: 14,347,483 km (0.099 R)
• M16: 15,828,951 km (0.083 R)
• M17: 18,110,169 km (0.087 R)
• M18: 20,885,209 km (0.119 R)
• M19: 23,087,589 km (0.117 R)
• M20: 24,166,638 km (0.073 R)
• M21: 25,118,081 km (0.069 R)
• M22: 26,342,390 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.3

Radius: 14.1

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.31 AU - 6.77 AU

Year: 5592 Days

Day: 9.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,640,442 km

• M1: 187,596 km (0.12 R)
• M2: 723,605 km (0.069 R)
• M3: 2,135,958 km (0.065 R)
• M4: 4,103,769 km (0.119 R)
• M5: 5,275,419 km (0.116 R)
• M6: 8,172,532 km (0.117 R)
• M7: 11,695,861 km (0.081 R)
• M8: 13,175,384 km (0.057 R)
• M9: 15,234,748 km (0.105 R)
• M10: 21,116,637 km (0.046 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.1

Radius: 9.7

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 6.02 AU - 6.64 AU

Year: 6000 Days

Day: 7.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,640,442 km

• M1: 121,025 km (0.088 R)
• M2: 556,055 km (0.114 R)
• M3: 885,619 km (0.117 R)
• M4: 1,649,616 km (0.096 R)
• M5: 2,401,195 km (0.071 R)
• M6: 2,847,745 km (0.113 R)
• M7: 3,415,768 km (0.112 R)
• M8: 3,853,342 km (0.091 R)
• M9: 5,258,515 km (0.066 R)
• M10: 5,651,808 km (0.067 R)
• M11: 8,501,647 km (0.064 R)
• M12: 12,033,952 km (0.091 R)
• M13: 13,049,871 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 901.3

Radius: 7.3

Gravity: 16.91 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 13.88 AU - 14.04 AU

Year: 19650 Days

Day: 21.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 84,640,442 km

• M1: 93,499 km (0.111 R)
• M2: 379,829 km (0.088 R)
• M3: 646,412 km (0.107 R)
• M4: 1,158,935 km (0.063 R)
• M5: 1,747,154 km (0.033 R)
• M6: 2,995,249 km (0.115 R)
• M7: 3,297,436 km (0.097 R)
• M8: 3,804,423 km (0.118 R)
• M9: 4,715,026 km (0.084 R)
• M10: 7,295,140 km (0.109 R)
• M11: 7,742,288 km (0.084 R)
• M12: 10,691,311 km (0.095 R)
• M13: 11,268,160 km (0.105 R)
• M14: 12,908,052 km (0.081 R)
• M15: 13,488,492 km (0.028 R)
• M16: 14,314,571 km (0.082 R)
• M17: 15,414,265 km (0.029 R)
• M18: 26,779,066 km (0.077 R)
• M19: 28,444,090 km (0.033 R)
• M20: 29,550,367 km (0.096 R)
• M21: 30,177,032 km (0.066 R)
• M22: 30,557,310 km (0.062 R)
• M23: 32,242,380 km (0.037 R)
• M24: 34,676,487 km (0.117 R)
• M25: 45,973,670 km (0.116 R)
• M26: 47,154,296 km (0.059 R)
• M27: 51,898,344 km (0.095 R)
• M28: 52,810,442 km (0.059 R)
• M29: 59,496,420 km (0.119 R)
• M30: 69,773,344 km (0.089 R)
• M31: 70,216,154 km (0.106 R)
• M32: 75,212,573 km (0.105 R)
• M33: 77,086,586 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 966.4

Radius: 6.7

Gravity: 21.53 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 10.89 AU - 17.13 AU

Year: 19755 Days

Day: 21.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 84,640,442 km

• M1: 83,476 km (0.059 R)
• M2: 357,389 km (0.117 R)
• M3: 1,208,900 km (0.106 R)
• M4: 1,501,963 km (0.115 R)
• M5: 1,999,824 km (0.1 R)
• M6: 2,985,973 km (0.116 R)
• M7: 6,083,248 km (0.102 R)
• M8: 6,947,924 km (0.066 R)
• M9: 7,788,664 km (0.116 R)
• M10: 9,376,346 km (0.074 R)
• M11: 10,589,734 km (0.068 R)
• M12: 13,771,382 km (0.115 R)
• M13: 20,333,343 km (0.089 R)
• M14: 21,025,831 km (0.035 R)
• M15: 25,401,270 km (0.114 R)
• M16: 26,906,075 km (0.093 R)
• M17: 27,500,277 km (0.103 R)
• M18: 28,962,297 km (0.106 R)
• M19: 35,613,419 km (0.058 R)
• M20: 39,443,274 km (0.06 R)
• M21: 40,830,644 km (0.073 R)
• M22: 55,381,281 km (0.106 R)
• M23: 67,006,382 km (0.111 R)
• M24: 69,200,385 km (0.069 R)
• M25: 72,580,549 km (0.077 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 441 - 14,599 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit