🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.49 AU - 0.57 AU

Year: 253 Days

Day: 44.8 Hours

Environment

Temp: -118 °C

Axial Tilt: 151.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.56 AU - 0.74 AU

Year: 344 Days

Day: 46.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461

Radius: 11.7

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.71 AU - 0.79 AU

Year: 426 Days

Day: 13.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,890,081 km

• M1: 145,559 km (0.034 R)
• M2: 517,010 km (0.048 R)
• M3: 895,194 km (0.092 R)
• M4: 1,326,335 km (0.116 R)
• M5: 1,897,499 km (0.064 R)
• M6: 2,322,507 km (0.086 R)
• M7: 3,075,433 km (0.099 R)
• M8: 3,469,474 km (0.104 R)
• M9: 4,047,819 km (0.113 R)
• M10: 4,689,594 km (0.114 R)
• M11: 5,064,786 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.7

Radius: 14.3

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.9 AU - 1.48 AU

Year: 852 Days

Day: 6.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,890,081 km

• M1: 177,872 km (0.096 R)
• M2: 629,508 km (0.119 R)
• M3: 1,291,478 km (0.075 R)
• M4: 2,093,173 km (0.028 R)
• M5: 2,693,809 km (0.033 R)
• M6: 4,071,456 km (0.108 R)
• M7: 6,753,895 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.6

Radius: 8.4

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.24 AU - 2.38 AU

Year: 2303 Days

Day: 11.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,890,081 km

• M1: 104,419 km (0.071 R)
• M2: 424,559 km (0.105 R)
• M3: 804,687 km (0.056 R)
• M4: 1,109,119 km (0.052 R)
• M5: 1,539,811 km (0.105 R)
• M6: 1,971,251 km (0.075 R)
• M7: 2,241,574 km (0.081 R)
• M8: 2,650,725 km (0.077 R)
• M9: 3,044,915 km (0.1 R)
• M10: 3,512,708 km (0.047 R)
• M11: 3,894,481 km (0.112 R)
• M12: 4,323,827 km (0.08 R)
• M13: 4,655,785 km (0.088 R)
• M14: 4,960,067 km (0.108 R)
• M15: 5,441,473 km (0.099 R)
• M16: 5,953,696 km (0.093 R)
• M17: 6,260,521 km (0.068 R)
• M18: 6,713,504 km (0.096 R)
• M19: 7,595,383 km (0.048 R)
• M20: 8,018,296 km (0.064 R)
• M21: 8,746,838 km (0.104 R)
• M22: 9,484,355 km (0.103 R)
• M23: 12,727,188 km (0.113 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.2

Radius: 3.5

Gravity: 41.57 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.7 AU - 7.78 AU

Year: 10226 Days

Day: 21.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 38,890,081 km

• M1: 43,533 km (0.075 R)
• M2: 220,507 km (0.104 R)
• M3: 428,448 km (0.111 R)
• M4: 756,516 km (0.056 R)
• M5: 969,245 km (0.067 R)
• M6: 1,232,238 km (0.089 R)
• M7: 1,486,255 km (0.098 R)
• M8: 1,611,468 km (0.044 R)
• M9: 2,046,798 km (0.037 R)
• M10: 3,568,508 km (0.115 R)
• M11: 5,004,498 km (0.118 R)
• M12: 5,160,229 km (0.091 R)
• M13: 5,514,028 km (0.113 R)
• M14: 5,747,550 km (0.052 R)
• M15: 6,341,903 km (0.1 R)
• M16: 7,210,019 km (0.08 R)
• M17: 7,328,800 km (0.059 R)
• M18: 8,283,384 km (0.067 R)
• M19: 9,085,976 km (0.064 R)
• M20: 11,210,565 km (0.111 R)
• M21: 12,134,631 km (0.115 R)
• M22: 12,816,798 km (0.114 R)
• M23: 14,133,109 km (0.081 R)
• M24: 15,405,439 km (0.103 R)
• M25: 16,340,276 km (0.045 R)
• M26: 17,668,556 km (0.119 R)
• M27: 19,523,719 km (0.111 R)
• M28: 20,143,652 km (0.112 R)
• M29: 22,165,767 km (0.088 R)
• M30: 22,755,332 km (0.118 R)
• M31: 25,767,934 km (0.119 R)
• M32: 28,243,629 km (0.082 R)
• M33: 28,440,350 km (0.094 R)
• M34: 28,836,486 km (0.085 R)
• M35: 33,882,272 km (0.058 R)
• M36: 39,731,549 km (0.091 R)
• M37: 40,475,649 km (0.096 R)
• M38: 42,119,729 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 76.9

Radius: 6.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 9.34 AU - 11.34 AU

Year: 21812 Days

Day: 18.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,890,081 km

• M1: 83,924 km (0.028 R)
• M2: 587,321 km (0.045 R)
• M3: 1,146,219 km (0.034 R)
• M4: 1,813,575 km (0.085 R)
• M5: 2,469,113 km (0.091 R)
• M6: 3,141,555 km (0.06 R)
• M7: 3,854,988 km (0.065 R)
• M8: 4,342,677 km (0.098 R)
• M9: 7,264,921 km (0.088 R)
• M10: 8,757,609 km (0.105 R)
• M11: 12,389,097 km (0.113 R)
• M12: 14,383,686 km (0.107 R)
• M13: 16,385,904 km (0.102 R)
• M14: 20,551,456 km (0.041 R)
• M15: 24,764,282 km (0.084 R)
• M16: 28,371,835 km (0.073 R)
• M17: 28,750,766 km (0.104 R)
• M18: 34,523,748 km (0.096 R)
• M19: 38,195,628 km (0.091 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 545 - 12,228 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit