🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.6 AU - 0.66 AU

Year: 323 Days

Day: 29 Hours

Environment

Temp: -130 °C

Axial Tilt: 31.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.6

Radius: 11.7

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.67 AU - 0.71 AU

Year: 370 Days

Day: 9.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,369,469 km

• M1: 145,559 km (0.088 R)
• M2: 524,041 km (0.1 R)
• M3: 895,493 km (0.09 R)
• M4: 1,285,644 km (0.09 R)
• M5: 1,713,793 km (0.056 R)
• M6: 2,413,014 km (0.111 R)
• M7: 2,998,091 km (0.116 R)
• M8: 3,492,213 km (0.085 R)
• M9: 3,866,656 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995

Radius: 10.1

Gravity: 9.75 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.69 AU - 0.95 AU

Year: 479 Days

Day: 14.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,369,469 km

• M1: 125,662 km (0.107 R)
• M2: 443,109 km (0.098 R)
• M3: 889,509 km (0.086 R)
• M4: 1,227,750 km (0.029 R)
• M5: 1,578,557 km (0.031 R)
• M6: 1,996,832 km (0.1 R)
• M7: 2,458,043 km (0.108 R)
• M8: 3,071,394 km (0.107 R)
• M9: 3,427,437 km (0.107 R)
• M10: 4,357,337 km (0.06 R)
• M11: 4,681,067 km (0.053 R)
• M12: 5,732,590 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.6

Radius: 8.5

Gravity: 8.42 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.06 AU - 1.4 AU

Year: 881 Days

Day: 14.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 78,369,469 km

• M1: 105,766 km (0.079 R)
• M2: 412,441 km (0.077 R)
• M3: 709,094 km (0.095 R)
• M4: 1,246,300 km (0.083 R)
• M5: 1,775,428 km (0.106 R)
• M6: 2,381,748 km (0.047 R)
• M7: 2,651,024 km (0.083 R)
• M8: 3,016,491 km (0.106 R)
• M9: 3,346,504 km (0.114 R)
• M10: 3,924,700 km (0.103 R)
• M11: 4,400,870 km (0.055 R)
• M12: 4,739,410 km (0.103 R)
• M13: 5,279,907 km (0.107 R)
• M14: 6,462,030 km (0.11 R)
• M15: 7,358,121 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.3

Radius: 13.4

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 3.98 AU - 4.38 AU

Year: 5518 Days

Day: 10.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,369,469 km

• M1: 166,951 km (0.042 R)
• M2: 662,868 km (0.071 R)
• M3: 1,609,823 km (0.113 R)
• M4: 2,186,971 km (0.117 R)
• M5: 2,629,033 km (0.117 R)
• M6: 3,111,486 km (0.053 R)
• M7: 3,631,339 km (0.04 R)
• M8: 7,123,851 km (0.089 R)
• M9: 8,775,261 km (0.086 R)
• M10: 9,734,034 km (0.108 R)
• M11: 12,770,871 km (0.036 R)
• M12: 13,564,937 km (0.103 R)
• M13: 15,019,327 km (0.035 R)
• M14: 16,329,056 km (0.059 R)
• M15: 19,518,333 km (0.118 R)
• M16: 20,075,885 km (0.101 R)
• M17: 20,572,400 km (0.11 R)
• M18: 21,738,216 km (0.117 R)
• M19: 22,793,928 km (0.116 R)
• M20: 25,582,732 km (0.107 R)
• M21: 27,274,833 km (0.104 R)
• M22: 28,681,203 km (0.117 R)
• M23: 30,135,444 km (0.115 R)
• M24: 32,700,150 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159

Radius: 10.4

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 3.28 AU - 5.24 AU

Year: 5677 Days

Day: 8.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 78,369,469 km

• M1: 130,300 km (0.071 R)
• M2: 1,073,514 km (0.072 R)
• M3: 1,945,820 km (0.106 R)
• M4: 3,271,705 km (0.034 R)
• M5: 8,393,787 km (0.089 R)
• M6: 9,434,390 km (0.093 R)
• M7: 9,874,058 km (0.066 R)
• M8: 10,288,893 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 995

Radius: 6.2

Gravity: 25.88 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 7.41 AU - 10.53 AU

Year: 17346 Days

Day: 20.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 78,369,469 km

• M1: 132,245 km (0.119 R)
• M2: 945,309 km (0.117 R)
• M3: 1,567,337 km (0.093 R)
• M4: 1,851,573 km (0.109 R)
• M5: 2,524,165 km (0.111 R)
• M6: 4,238,856 km (0.102 R)
• M7: 4,475,669 km (0.098 R)
• M8: 6,477,289 km (0.064 R)
• M9: 6,883,746 km (0.082 R)
• M10: 7,451,919 km (0.098 R)
• M11: 8,102,370 km (0.12 R)
• M12: 11,022,222 km (0.085 R)
• M13: 12,611,998 km (0.084 R)
• M14: 13,606,674 km (0.048 R)
• M15: 16,819,737 km (0.072 R)
• M16: 17,243,249 km (0.092 R)
• M17: 18,377,500 km (0.095 R)
• M18: 21,677,479 km (0.092 R)
• M19: 22,997,531 km (0.104 R)
• M20: 25,131,694 km (0.103 R)
• M21: 26,246,797 km (0.046 R)
• M22: 26,816,466 km (0.095 R)
• M23: 27,278,125 km (0.096 R)
• M24: 38,385,916 km (0.061 R)
• M25: 39,564,448 km (0.101 R)
• M26: 43,403,129 km (0.116 R)
• M27: 44,520,775 km (0.099 R)
• M28: 55,084,928 km (0.116 R)
• M29: 59,270,676 km (0.087 R)
• M30: 60,843,848 km (0.053 R)
• M31: 65,105,442 km (0.093 R)
• M32: 65,313,234 km (0.119 R)
• M33: 66,148,738 km (0.085 R)
• M34: 72,866,580 km (0.07 R)
• M35: 75,584,623 km (0.069 R)
• M36: 77,433,653 km (0.038 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: 497 - 17,438 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit