🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.58 AU - 0.62 AU

Year: 170 Days

Day: 34.5 Hours

Environment

Temp: 167 °C

Axial Tilt: 41.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 62,644,813 km

• M1: 45,029 km (0.028 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.72

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.76 AU - 1.12 AU

Year: 333 Days

Day: 31 Hours

Environment

Temp: 149 °C

Axial Tilt: 16.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 62,644,813 km

• M1: 34,707 km (0.098 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.75 AU - 1.21 AU

Year: 354 Days

Day: 35.6 Hours

Environment

Temp: 38 °C

Axial Tilt: 22.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 62,644,813 km

• M1: 96,640 km (0.075 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.95 AU - 1.57 AU

Year: 517 Days

Day: 33.7 Hours

Environment

Temp: 2 °C

Axial Tilt: 13.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.27 AU - 3.75 AU

Year: 1907 Days

Day: 27.5 Hours

Environment

Temp: -93 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 4.58 AU - 4.74 AU

Year: 3674 Days

Day: 23.4 Hours

Environment

Temp: -124 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 62,644,813 km

• M1: 39,793 km (0.117 R)
• M2: 436,826 km (0.115 R)

Asteroid Belt

Center: 6.14 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.3

Radius: 14.9

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 6.71 AU - 8.51 AU

Year: 7668 Days

Day: 13.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 62,644,813 km

• M1: 199,863 km (0.115 R)
• M2: 718,668 km (0.068 R)
• M3: 1,246,150 km (0.114 R)
• M4: 1,709,904 km (0.091 R)
• M5: 2,205,970 km (0.114 R)
• M6: 2,839,966 km (0.032 R)
• M7: 3,765,827 km (0.069 R)
• M8: 4,884,969 km (0.044 R)
• M9: 5,539,160 km (0.098 R)
• M10: 6,076,366 km (0.12 R)
• M11: 6,872,227 km (0.079 R)
• M12: 7,859,872 km (0.063 R)
• M13: 9,213,882 km (0.098 R)
• M14: 11,184,685 km (0.041 R)
• M15: 13,011,275 km (0.106 R)
• M16: 14,648,025 km (0.113 R)
• M17: 19,603,604 km (0.045 R)
• M18: 21,098,685 km (0.112 R)
• M19: 21,750,633 km (0.105 R)
• M20: 23,525,612 km (0.082 R)
• M21: 25,762,698 km (0.118 R)
• M22: 26,696,189 km (0.041 R)
• M23: 27,845,848 km (0.111 R)
• M24: 29,329,111 km (0.096 R)
• M25: 30,346,826 km (0.09 R)
• M26: 32,130,930 km (0.104 R)
• M27: 32,777,043 km (0.091 R)
• M28: 43,801,359 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 350.2

Radius: 7.1

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 11.68 AU - 16.4 AU

Year: 19215 Days

Day: 19.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 62,644,813 km

• M1: 88,263 km (0.085 R)
• M2: 444,904 km (0.118 R)
• M3: 735,423 km (0.057 R)
• M4: 1,414,747 km (0.074 R)
• M5: 2,475,246 km (0.08 R)
• M6: 3,902,410 km (0.118 R)
• M7: 5,959,082 km (0.037 R)
• M8: 6,268,749 km (0.043 R)
• M9: 6,589,038 km (0.1 R)
• M10: 7,218,995 km (0.085 R)
• M11: 7,934,671 km (0.096 R)
• M12: 9,247,991 km (0.032 R)
• M13: 11,748,968 km (0.092 R)
• M14: 13,514,223 km (0.083 R)
• M15: 19,859,566 km (0.063 R)
• M16: 22,910,016 km (0.082 R)
• M17: 23,670,721 km (0.084 R)
• M18: 26,156,290 km (0.065 R)
• M19: 27,409,023 km (0.095 R)
• M20: 34,524,346 km (0.105 R)
• M21: 36,030,498 km (0.066 R)
• M22: 36,542,122 km (0.038 R)
• M23: 36,799,730 km (0.054 R)
• M24: 51,931,405 km (0.064 R)
• M25: 52,748,209 km (0.076 R)
• M26: 55,250,084 km (0.106 R)
• M27: 55,930,455 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 952.5

Radius: 7.7

Gravity: 16.07 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 11.4 AU - 16.78 AU

Year: 19318 Days

Day: 15.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,644,813 km

• M1: 96,790 km (0.062 R)
• M2: 510,278 km (0.095 R)
• M3: 2,223,772 km (0.07 R)
• M4: 3,898,969 km (0.089 R)
• M5: 4,294,356 km (0.075 R)
• M6: 5,282,151 km (0.104 R)
• M7: 6,063,052 km (0.071 R)
• M8: 7,750,067 km (0.092 R)
• M9: 8,483,695 km (0.112 R)
• M10: 10,834,327 km (0.037 R)
• M11: 11,220,887 km (0.1 R)
• M12: 12,227,532 km (0.116 R)
• M13: 12,859,882 km (0.098 R)
• M14: 13,220,413 km (0.085 R)
• M15: 14,574,423 km (0.112 R)
• M16: 16,436,168 km (0.112 R)
• M17: 18,909,919 km (0.114 R)
• M18: 20,527,072 km (0.088 R)
• M19: 21,119,330 km (0.062 R)
• M20: 23,602,355 km (0.04 R)
• M21: 54,866,515 km (0.11 R)
• M22: 60,521,464 km (0.084 R)
• M23: 67,848,917 km (0.106 R)
• M24: 69,161,639 km (0.1 R)
• M25: 75,278,995 km (0.059 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 375.2

Radius: 4.1

Gravity: 22.32 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 12.88 AU - 16.14 AU

Year: 20188 Days

Day: 21.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,644,813 km

• M1: 51,013 km (0.067 R)
• M2: 375,042 km (0.102 R)
• M3: 590,313 km (0.101 R)
• M4: 1,500,018 km (0.098 R)
• M5: 1,774,979 km (0.111 R)
• M6: 2,320,861 km (0.117 R)
• M7: 3,431,626 km (0.089 R)
• M8: 4,589,812 km (0.075 R)
• M9: 5,566,836 km (0.078 R)
• M10: 6,425,977 km (0.097 R)
• M11: 7,735,257 km (0.084 R)
• M12: 8,903,018 km (0.085 R)
• M13: 11,765,424 km (0.096 R)
• M14: 18,541,758 km (0.078 R)
• M15: 19,732,558 km (0.114 R)
• M16: 21,154,784 km (0.077 R)
• M17: 25,210,383 km (0.072 R)
• M18: 25,933,090 km (0.109 R)
• M19: 30,445,710 km (0.084 R)
• M20: 41,269,265 km (0.059 R)
• M21: 43,291,230 km (0.1 R)
• M22: 50,561,388 km (0.096 R)
• M23: 59,144,266 km (0.071 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 448 - 16,828 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit