🌌 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: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.5 AU - 0.56 AU

Year: 245 Days

Day: 33.6 Hours

Environment

Temp: -111 °C

Axial Tilt: 19 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325

Radius: 13.8

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.71 AU - 0.89 AU

Year: 455 Days

Day: 5.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,550,873 km

• M1: 172,486 km (0.106 R)
• M2: 489,335 km (0.059 R)
• M3: 773,421 km (0.073 R)
• M4: 1,471,445 km (0.064 R)
• M5: 1,914,404 km (0.112 R)
• M6: 2,383,692 km (0.1 R)
• M7: 3,147,838 km (0.025 R)
• M8: 3,552,650 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.9

Radius: 9.3

Gravity: 10.18 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.01 AU - 1.07 AU

Year: 674 Days

Day: 8.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,550,873 km

• M1: 261,796 km (0.077 R)
• M2: 528,080 km (0.08 R)
• M3: 709,543 km (0.092 R)
• M4: 982,708 km (0.06 R)
• M5: 1,165,367 km (0.048 R)
• M6: 1,371,962 km (0.116 R)
• M7: 1,561,951 km (0.12 R)
• M8: 1,780,215 km (0.119 R)
• M9: 2,070,584 km (0.076 R)
• M10: 2,314,429 km (0.102 R)
• M11: 2,563,509 km (0.099 R)
• M12: 3,091,590 km (0.078 R)
• M13: 3,433,122 km (0.106 R)
• M14: 3,737,553 km (0.066 R)
• M15: 3,986,185 km (0.093 R)
• M16: 4,606,418 km (0.092 R)
• M17: 5,114,901 km (0.055 R)
• M18: 5,352,612 km (0.083 R)
• M19: 5,541,255 km (0.116 R)
• M20: 5,761,014 km (0.096 R)
• M21: 5,985,112 km (0.09 R)
• M22: 7,724,336 km (0.098 R)
• M23: 8,132,290 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.3

Radius: 11.1

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 2.58 AU - 3.42 AU

Year: 3304 Days

Day: 6.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 76,550,873 km

• M1: 145,559 km (0.111 R)
• M2: 407,654 km (0.058 R)
• M3: 617,390 km (0.096 R)
• M4: 850,015 km (0.064 R)
• M5: 1,198,578 km (0.11 R)
• M6: 1,902,586 km (0.09 R)
• M7: 2,201,632 km (0.102 R)
• M8: 2,701,139 km (0.046 R)
• M9: 2,913,119 km (0.082 R)
• M10: 3,795,747 km (0.03 R)
• M11: 4,291,365 km (0.098 R)
• M12: 4,893,795 km (0.093 R)
• M13: 5,357,549 km (0.084 R)
• M14: 6,157,000 km (0.097 R)
• M15: 8,244,039 km (0.055 R)
• M16: 11,152,072 km (0.099 R)
• M17: 11,822,570 km (0.09 R)
• M18: 12,512,815 km (0.112 R)
• M19: 12,819,191 km (0.076 R)
• M20: 13,098,042 km (0.12 R)
• M21: 13,760,461 km (0.078 R)
• M22: 14,603,595 km (0.089 R)
• M23: 15,202,136 km (0.097 R)
• M24: 16,575,594 km (0.076 R)
• M25: 17,177,426 km (0.114 R)
• M26: 17,717,474 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.2

Radius: 10.5

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.54 AU - 4.14 AU

Year: 3881 Days

Day: 14.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,550,873 km

• M1: 137,630 km (0.079 R)
• M2: 497,712 km (0.115 R)
• M3: 710,590 km (0.065 R)
• M4: 956,529 km (0.091 R)
• M5: 1,272,629 km (0.039 R)
• M6: 2,023,461 km (0.105 R)
• M7: 2,686,927 km (0.107 R)
• M8: 3,526,770 km (0.079 R)
• M9: 6,313,778 km (0.082 R)
• M10: 7,268,811 km (0.071 R)
• M11: 7,959,205 km (0.086 R)
• M12: 8,879,531 km (0.068 R)
• M13: 10,983,924 km (0.101 R)
• M14: 12,179,511 km (0.055 R)
• M15: 12,681,262 km (0.085 R)
• M16: 15,839,423 km (0.088 R)
• M17: 17,201,810 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 232.2

Radius: 8

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 8.2 AU - 9.7 AU

Year: 17024 Days

Day: 16.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,550,873 km

• M1: 99,483 km (0.089 R)
• M2: 1,071,869 km (0.073 R)
• M3: 4,493,920 km (0.067 R)
• M4: 5,467,802 km (0.113 R)
• M5: 5,628,769 km (0.103 R)
• M6: 8,688,495 km (0.091 R)
• M7: 10,873,521 km (0.092 R)
• M8: 12,662,263 km (0.117 R)
• M9: 17,677,532 km (0.063 R)
• M10: 18,912,761 km (0.089 R)
• M11: 28,000,383 km (0.114 R)
• M12: 29,401,666 km (0.074 R)
• M13: 36,589,096 km (0.108 R)
• M14: 44,105,491 km (0.109 R)
• M15: 47,270,982 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 740.1

Radius: 3

Gravity: 82.23 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 8.82 AU - 10.72 AU

Year: 19417 Days

Day: 15.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 76,550,873 km

• M1: 38,596 km (0.094 R)
• M2: 1,330,374 km (0.119 R)
• M3: 1,494,483 km (0.113 R)
• M4: 2,045,302 km (0.111 R)
• M5: 3,315,837 km (0.117 R)
• M6: 5,491,887 km (0.107 R)
• M7: 6,741,179 km (0.099 R)
• M8: 8,934,434 km (0.082 R)
• M9: 9,463,860 km (0.053 R)
• M10: 11,675,067 km (0.054 R)
• M11: 12,279,442 km (0.119 R)
• M12: 12,774,013 km (0.116 R)
• M13: 13,922,625 km (0.097 R)
• M14: 14,515,631 km (0.102 R)
• M15: 14,985,368 km (0.097 R)
• M16: 15,947,283 km (0.041 R)
• M17: 18,333,369 km (0.12 R)
• M18: 20,488,476 km (0.097 R)
• M19: 20,885,957 km (0.083 R)
• M20: 25,865,322 km (0.076 R)
• M21: 27,766,113 km (0.098 R)
• M22: 30,405,468 km (0.059 R)
• M23: 33,771,869 km (0.078 R)
• M24: 36,889,040 km (0.072 R)
• M25: 39,262,410 km (0.052 R)
• M26: 41,709,981 km (0.117 R)
• M27: 50,486,140 km (0.058 R)
• M28: 52,114,363 km (0.076 R)
• M29: 62,151,034 km (0.108 R)
• M30: 63,537,507 km (0.083 R)
• M31: 67,357,339 km (0.106 R)
• M32: 72,177,382 km (0.093 R)
• M33: 74,423,445 km (0.096 R)
• M34: 75,331,504 km (0.116 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: 547 - 18,994 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit