🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.4

Radius: 9.9

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.84 AU - 0.96 AU

Year: 569 Days

Day: 11.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,140,275 km

• M1: 123,119 km (0.082 R)
• M2: 463,753 km (0.098 R)
• M3: 820,245 km (0.101 R)
• M4: 1,250,489 km (0.104 R)
• M5: 1,645,277 km (0.106 R)
• M6: 1,979,778 km (0.114 R)
• M7: 2,503,371 km (0.098 R)
• M8: 2,939,598 km (0.081 R)
• M9: 3,659,164 km (0.1 R)
• M10: 4,157,624 km (0.118 R)
• M11: 4,574,703 km (0.061 R)
• M12: 4,989,987 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.3

Radius: 11.5

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.99 AU - 1.03 AU

Year: 677 Days

Day: 8.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,140,275 km

• M1: 146,905 km (0.114 R)
• M2: 519,404 km (0.11 R)
• M3: 1,239,418 km (0.081 R)
• M4: 1,780,813 km (0.04 R)
• M5: 2,311,736 km (0.051 R)
• M6: 2,841,013 km (0.107 R)
• M7: 3,331,993 km (0.118 R)
• M8: 4,025,080 km (0.082 R)
• M9: 4,946,902 km (0.087 R)
• M10: 5,367,422 km (0.044 R)
• M11: 5,773,879 km (0.103 R)
• M12: 6,361,350 km (0.117 R)
• M13: 6,795,932 km (0.118 R)
• M14: 7,339,272 km (0.1 R)
• M15: 7,958,457 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.9

Radius: 12.2

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.88 AU - 1.46 AU

Year: 844 Days

Day: 7.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,140,275 km

• M1: 159,322 km (0.117 R)
• M2: 569,968 km (0.074 R)
• M3: 1,160,131 km (0.11 R)
• M4: 1,545,196 km (0.116 R)
• M5: 2,009,099 km (0.114 R)
• M6: 2,555,580 km (0.069 R)
• M7: 3,069,898 km (0.108 R)
• M8: 3,922,755 km (0.079 R)
• M9: 4,352,999 km (0.118 R)
• M10: 5,604,535 km (0.041 R)
• M11: 6,285,504 km (0.09 R)
• M12: 6,676,104 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.9

Radius: 10.5

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.3 AU - 1.84 AU

Year: 1312 Days

Day: 8 Hours

Environment

Temp: -202 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,140,275 km

• M1: 131,497 km (0.08 R)
• M2: 514,617 km (0.113 R)
• M3: 902,823 km (0.048 R)
• M4: 1,403,228 km (0.107 R)
• M5: 2,411,518 km (0.079 R)
• M6: 3,815,793 km (0.103 R)
• M7: 5,723,764 km (0.107 R)
• M8: 6,308,692 km (0.118 R)
• M9: 6,885,392 km (0.109 R)
• M10: 7,471,666 km (0.086 R)
• M11: 8,800,244 km (0.111 R)
• M12: 10,626,834 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.2

Radius: 12.1

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.71 AU - 1.97 AU

Year: 1664 Days

Day: 12.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,140,275 km

• M1: 150,495 km (0.058 R)
• M2: 810,820 km (0.111 R)
• M3: 2,011,942 km (0.083 R)
• M4: 3,403,052 km (0.066 R)
• M5: 4,246,485 km (0.099 R)
• M6: 4,984,900 km (0.094 R)
• M7: 6,585,149 km (0.116 R)
• M8: 8,635,537 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.8

Radius: 10.5

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.52 AU - 3.44 AU

Year: 3430 Days

Day: 7.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 82,140,275 km

• M1: 131,347 km (0.102 R)
• M2: 491,279 km (0.109 R)
• M3: 856,448 km (0.111 R)
• M4: 1,199,177 km (0.098 R)
• M5: 1,959,882 km (0.083 R)
• M6: 2,313,531 km (0.11 R)
• M7: 3,795,747 km (0.115 R)
• M8: 4,773,219 km (0.063 R)
• M9: 5,778,966 km (0.086 R)
• M10: 6,180,486 km (0.087 R)
• M11: 6,744,620 km (0.094 R)
• M12: 7,404,496 km (0.111 R)
• M13: 11,492,856 km (0.035 R)
• M14: 12,789,421 km (0.088 R)
• M15: 15,773,899 km (0.08 R)
• M16: 17,872,607 km (0.111 R)
• M17: 19,908,933 km (0.086 R)
• M18: 20,272,905 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 727.1

Radius: 7.2

Gravity: 14.03 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 8.02 AU - 9 AU

Year: 16555 Days

Day: 21.4 Hours

Environment

Temp: -240 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 82,140,275 km

• M1: 91,853 km (0.09 R)
• M2: 390,899 km (0.062 R)
• M3: 636,240 km (0.028 R)
• M4: 1,332,618 km (0.113 R)
• M5: 1,773,483 km (0.101 R)
• M6: 2,545,258 km (0.099 R)
• M7: 3,958,958 km (0.071 R)
• M8: 4,237,360 km (0.082 R)
• M9: 4,595,497 km (0.103 R)
• M10: 7,552,897 km (0.084 R)
• M11: 8,428,194 km (0.112 R)
• M12: 9,154,343 km (0.033 R)
• M13: 10,495,338 km (0.067 R)
• M14: 11,090,887 km (0.093 R)
• M15: 12,284,379 km (0.093 R)
• M16: 16,218,803 km (0.075 R)
• M17: 17,835,956 km (0.086 R)
• M18: 20,919,766 km (0.069 R)
• M19: 21,671,496 km (0.112 R)
• M20: 23,428,373 km (0.082 R)
• M21: 27,002,416 km (0.117 R)
• M22: 33,526,528 km (0.066 R)
• M23: 38,044,085 km (0.11 R)
• M24: 39,873,517 km (0.112 R)
• M25: 40,737,295 km (0.116 R)
• M26: 43,403,578 km (0.093 R)
• M27: 49,080,668 km (0.095 R)
• M28: 50,573,505 km (0.072 R)
• M29: 54,349,804 km (0.111 R)
• M30: 62,265,177 km (0.059 R)
• M31: 64,406,670 km (0.083 R)
• M32: 65,794,789 km (0.116 R)
• M33: 67,000,398 km (0.105 R)
• M34: 68,425,318 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 613.9

Radius: 3.1

Gravity: 63.88 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 8.74 AU - 10.94 AU

Year: 20584 Days

Day: 17.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 82,140,275 km

• M1: 38,746 km (0.101 R)
• M2: 239,207 km (0.042 R)
• M3: 559,346 km (0.112 R)
• M4: 1,058,854 km (0.076 R)
• M5: 1,429,408 km (0.113 R)
• M6: 1,576,014 km (0.102 R)
• M7: 1,768,696 km (0.119 R)
• M8: 2,557,226 km (0.083 R)
• M9: 3,948,486 km (0.077 R)
• M10: 6,580,511 km (0.097 R)
• M11: 7,408,835 km (0.089 R)
• M12: 8,252,716 km (0.066 R)
• M13: 11,292,246 km (0.112 R)
• M14: 11,419,703 km (0.094 R)
• M15: 12,071,052 km (0.101 R)
• M16: 12,678,270 km (0.12 R)
• M17: 14,321,752 km (0.062 R)
• M18: 17,339,291 km (0.104 R)
• M19: 17,851,514 km (0.039 R)
• M20: 18,285,946 km (0.061 R)
• M21: 18,549,986 km (0.084 R)
• M22: 21,722,209 km (0.09 R)
• M23: 23,436,002 km (0.096 R)
• M24: 25,346,517 km (0.066 R)
• M25: 27,243,867 km (0.103 R)
• M26: 28,285,666 km (0.029 R)
• M27: 30,202,913 km (0.116 R)
• M28: 32,332,887 km (0.065 R)
• M29: 32,848,102 km (0.039 R)
• M30: 33,238,253 km (0.081 R)
• M31: 34,027,532 km (0.088 R)
• M32: 40,202,034 km (0.111 R)
• M33: 45,938,963 km (0.116 R)
• M34: 59,384,820 km (0.119 R)
• M35: 60,740,775 km (0.034 R)
• M36: 62,514,557 km (0.063 R)
• M37: 68,252,832 km (0.063 R)
• M38: 68,464,064 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 582.4

Radius: 4.3

Gravity: 31.5 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 10.82 AU - 11.18 AU

Year: 24329 Days

Day: 17.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 82,140,275 km

• M1: 54,603 km (0.09 R)
• M2: 278,701 km (0.056 R)
• M3: 671,545 km (0.109 R)
• M4: 1,039,256 km (0.037 R)
• M5: 1,496,278 km (0.097 R)
• M6: 1,913,955 km (0.085 R)
• M7: 2,819,621 km (0.092 R)
• M8: 3,603,214 km (0.103 R)
• M9: 9,360,488 km (0.111 R)
• M10: 9,651,905 km (0.072 R)
• M11: 10,070,031 km (0.109 R)
• M12: 10,751,300 km (0.071 R)
• M13: 11,529,059 km (0.076 R)
• M14: 12,136,426 km (0.104 R)
• M15: 12,274,356 km (0.108 R)
• M16: 13,488,342 km (0.044 R)
• M17: 14,392,213 km (0.091 R)
• M18: 14,624,239 km (0.083 R)
• M19: 16,069,654 km (0.094 R)
• M20: 20,287,266 km (0.055 R)
• M21: 21,270,872 km (0.062 R)
• M22: 23,120,800 km (0.099 R)
• M23: 23,976,350 km (0.113 R)
• M24: 24,631,738 km (0.108 R)
• M25: 25,637,185 km (0.089 R)
• M26: 26,785,948 km (0.117 R)
• M27: 29,682,162 km (0.095 R)
• M28: 31,986,568 km (0.117 R)
• M29: 33,182,304 km (0.032 R)
• M30: 35,521,566 km (0.11 R)
• M31: 35,803,857 km (0.113 R)
• M32: 36,087,644 km (0.091 R)
• M33: 37,968,538 km (0.112 R)
• M34: 38,115,892 km (0.077 R)
• M35: 38,411,647 km (0.112 R)
• M36: 38,709,047 km (0.118 R)
• M37: 39,610,375 km (0.099 R)
• M38: 40,371,977 km (0.098 R)
• M39: 48,359,905 km (0.088 R)
• M40: 54,669,046 km (0.114 R)
• M41: 59,496,719 km (0.045 R)
• M42: 65,867,793 km (0.088 R)
• M43: 72,225,702 km (0.123 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 232 - 15,865 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit