🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.2

Radius: 15

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.48 AU - 0.74 AU

Year: 329 Days

Day: 12.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 90.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 49,923,403 km

• M1: 186,698 km (0.071 R)
• M2: 785,090 km (0.107 R)
• M3: 1,506,451 km (0.047 R)
• M4: 2,398,203 km (0.081 R)
• M5: 3,137,516 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.5

Radius: 14.2

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.68 AU - 0.84 AU

Year: 457 Days

Day: 6.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,923,403 km

• M1: 176,525 km (0.091 R)
• M2: 636,988 km (0.114 R)
• M3: 1,115,402 km (0.112 R)
• M4: 1,564,644 km (0.11 R)
• M5: 2,146,281 km (0.03 R)
• M6: 3,136,918 km (0.092 R)
• M7: 4,002,341 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743.6

Radius: 12.6

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.83 AU - 0.95 AU

Year: 580 Days

Day: 6.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,923,403 km

• M1: 156,629 km (0.118 R)
• M2: 622,327 km (0.08 R)
• M3: 1,043,146 km (0.088 R)
• M4: 1,962,275 km (0.102 R)
• M5: 2,387,283 km (0.12 R)
• M6: 3,530,959 km (0.119 R)
• M7: 4,749,583 km (0.038 R)
• M8: 5,562,348 km (0.119 R)
• M9: 6,154,307 km (0.07 R)
• M10: 6,665,782 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.2

Radius: 10

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.77 AU - 1.03 AU

Year: 589 Days

Day: 14.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,923,403 km

• M1: 124,316 km (0.078 R)
• M2: 451,337 km (0.069 R)
• M3: 804,837 km (0.118 R)
• M4: 1,133,204 km (0.093 R)
• M5: 1,528,890 km (0.104 R)
• M6: 1,922,482 km (0.05 R)
• M7: 2,285,706 km (0.062 R)
• M8: 3,213,213 km (0.031 R)
• M9: 3,605,907 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.3

Radius: 13.7

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.16 AU - 1.52 AU

Year: 1071 Days

Day: 11.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,923,403 km

• M1: 178,470 km (0.086 R)
• M2: 649,704 km (0.12 R)
• M3: 1,210,396 km (0.11 R)
• M4: 2,592,830 km (0.109 R)
• M5: 3,087,550 km (0.074 R)
• M6: 3,882,364 km (0.078 R)
• M7: 4,507,533 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.8

Radius: 14.4

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.92 AU - 3.36 AU

Year: 3841 Days

Day: 8.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,923,403 km

• M1: 181,911 km (0.099 R)
• M2: 1,156,541 km (0.068 R)
• M3: 2,234,095 km (0.094 R)
• M4: 3,300,578 km (0.088 R)
• M5: 4,104,666 km (0.067 R)
• M6: 4,563,782 km (0.117 R)
• M7: 5,518,665 km (0.08 R)
• M8: 7,128,339 km (0.075 R)
• M9: 8,474,570 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601

Radius: 8.1

Gravity: 9.16 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 4.42 AU - 5.62 AU

Year: 7764 Days

Day: 14.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,923,403 km

• M1: 100,679 km (0.083 R)
• M2: 621,878 km (0.03 R)
• M3: 1,208,452 km (0.117 R)
• M4: 1,620,295 km (0.067 R)
• M5: 2,107,086 km (0.081 R)
• M6: 2,649,977 km (0.097 R)
• M7: 2,904,143 km (0.097 R)
• M8: 3,371,637 km (0.088 R)
• M9: 6,188,415 km (0.105 R)
• M10: 7,960,402 km (0.079 R)
• M11: 9,225,850 km (0.088 R)
• M12: 9,630,363 km (0.096 R)
• M13: 12,581,630 km (0.027 R)
• M14: 13,705,409 km (0.103 R)
• M15: 14,114,110 km (0.112 R)
• M16: 15,577,477 km (0.088 R)
• M17: 16,541,785 km (0.059 R)
• M18: 18,377,051 km (0.032 R)
• M19: 20,723,045 km (0.104 R)
• M20: 22,286,792 km (0.031 R)
• M21: 25,911,997 km (0.107 R)
• M22: 29,717,617 km (0.103 R)
• M23: 31,500,076 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 985.4

Radius: 5.8

Gravity: 29.29 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 5.38 AU - 7 AU

Year: 10630 Days

Day: 17 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 49,923,403 km

• M1: 74,500 km (0.117 R)
• M2: 265,985 km (0.098 R)
• M3: 522,396 km (0.101 R)
• M4: 1,131,558 km (0.094 R)
• M5: 1,546,842 km (0.114 R)
• M6: 1,969,007 km (0.107 R)
• M7: 2,548,101 km (0.063 R)
• M8: 2,742,279 km (0.084 R)
• M9: 3,040,427 km (0.058 R)
• M10: 3,567,610 km (0.107 R)
• M11: 3,783,779 km (0.119 R)
• M12: 4,423,759 km (0.032 R)
• M13: 4,834,405 km (0.11 R)
• M14: 5,032,323 km (0.112 R)
• M15: 5,622,786 km (0.067 R)
• M16: 6,982,181 km (0.109 R)
• M17: 8,032,358 km (0.086 R)
• M18: 9,746,900 km (0.12 R)
• M19: 11,111,531 km (0.09 R)
• M20: 13,037,903 km (0.117 R)
• M21: 14,552,731 km (0.106 R)
• M22: 22,331,073 km (0.031 R)
• M23: 23,440,790 km (0.106 R)
• M24: 27,614,121 km (0.108 R)
• M25: 28,461,444 km (0.116 R)
• M26: 28,999,846 km (0.109 R)
• M27: 32,607,100 km (0.093 R)
• M28: 34,275,266 km (0.077 R)
• M29: 40,697,203 km (0.082 R)
• M30: 42,210,086 km (0.065 R)
• M31: 42,910,055 km (0.098 R)
• M32: 53,049,948 km (0.112 R)
• M33: 53,375,024 km (0.072 R)
• M34: 55,186,355 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 217.7

Radius: 4.9

Gravity: 9.07 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 7.48 AU - 10.66 AU

Year: 18855 Days

Day: 18 Hours

Environment

Temp: -241 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,923,403 km

• M1: 109,356 km (0.118 R)
• M2: 459,864 km (0.085 R)
• M3: 667,655 km (0.094 R)
• M4: 877,990 km (0.103 R)
• M5: 1,340,995 km (0.112 R)
• M6: 1,694,794 km (0.08 R)
• M7: 2,108,432 km (0.071 R)
• M8: 2,648,630 km (0.052 R)
• M9: 2,884,247 km (0.114 R)
• M10: 4,788,777 km (0.114 R)
• M11: 5,855,709 km (0.102 R)
• M12: 6,991,456 km (0.098 R)
• M13: 11,716,056 km (0.081 R)
• M14: 16,228,527 km (0.114 R)
• M15: 19,141,197 km (0.09 R)
• M16: 20,845,266 km (0.09 R)
• M17: 21,096,591 km (0.099 R)
• M18: 22,913,607 km (0.08 R)
• M19: 27,053,578 km (0.102 R)
• M20: 34,040,846 km (0.1 R)
• M21: 35,808,195 km (0.095 R)
• M22: 46,418,723 km (0.111 R)
• M23: 48,589,239 km (0.062 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 14,577 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit