🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.5 AU - 0.54 AU

Year: 242 Days

Day: 14.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.5

Radius: 8

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.96 AU - 0.96 AU

Year: 607 Days

Day: 7.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,816,299 km

• M1: 99,483 km (0.066 R)
• M2: 427,401 km (0.059 R)
• M3: 731,982 km (0.089 R)
• M4: 998,267 km (0.053 R)
• M5: 1,270,086 km (0.106 R)
• M6: 1,706,164 km (0.099 R)
• M7: 2,283,312 km (0.107 R)
• M8: 2,573,532 km (0.108 R)
• M9: 2,835,927 km (0.056 R)
• M10: 3,183,443 km (0.058 R)
• M11: 3,498,645 km (0.094 R)
• M12: 4,070,408 km (0.102 R)
• M13: 4,442,458 km (0.077 R)
• M14: 4,732,529 km (0.113 R)
• M15: 5,050,723 km (0.058 R)
• M16: 5,596,307 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.7

Radius: 10.7

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.77 AU - 1.83 AU

Year: 1559 Days

Day: 12.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,816,299 km

• M1: 133,142 km (0.083 R)
• M2: 475,721 km (0.099 R)
• M3: 1,073,066 km (0.062 R)
• M4: 1,463,666 km (0.064 R)
• M5: 2,489,309 km (0.088 R)
• M6: 3,643,007 km (0.095 R)
• M7: 4,141,168 km (0.099 R)
• M8: 4,604,024 km (0.117 R)
• M9: 5,407,365 km (0.09 R)
• M10: 5,913,753 km (0.115 R)
• M11: 6,252,293 km (0.057 R)
• M12: 7,048,453 km (0.083 R)
• M13: 7,681,701 km (0.041 R)
• M14: 8,144,258 km (0.113 R)
• M15: 8,779,749 km (0.082 R)
• M16: 9,253,526 km (0.107 R)
• M17: 10,081,101 km (0.105 R)
• M18: 12,503,390 km (0.058 R)
• M19: 13,144,417 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759

Radius: 11.9

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.36 AU - 2.94 AU

Year: 2785 Days

Day: 12.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 77,816,299 km

• M1: 150,196 km (0.114 R)
• M2: 709,543 km (0.03 R)
• M3: 1,462,469 km (0.054 R)
• M4: 2,024,209 km (0.108 R)
• M5: 2,515,039 km (0.057 R)
• M6: 3,118,816 km (0.051 R)
• M7: 5,106,224 km (0.117 R)
• M8: 8,054,200 km (0.116 R)
• M9: 8,904,215 km (0.026 R)
• M10: 9,626,623 km (0.033 R)
• M11: 10,078,409 km (0.117 R)
• M12: 12,333,896 km (0.105 R)
• M13: 15,157,705 km (0.113 R)
• M14: 16,452,325 km (0.099 R)
• M15: 17,540,201 km (0.071 R)
• M16: 20,223,538 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.3

Radius: 13.8

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 4.58 AU - 6.88 AU

Year: 8856 Days

Day: 8.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 77,816,299 km

• M1: 171,738 km (0.116 R)
• M2: 813,663 km (0.036 R)
• M3: 1,808,189 km (0.107 R)
• M4: 2,338,514 km (0.042 R)
• M5: 2,955,904 km (0.096 R)
• M6: 4,634,841 km (0.104 R)
• M7: 5,158,434 km (0.12 R)
• M8: 5,748,149 km (0.094 R)
• M9: 7,342,563 km (0.087 R)
• M10: 9,400,132 km (0.088 R)
• M11: 11,303,914 km (0.078 R)
• M12: 12,436,669 km (0.111 R)
• M13: 14,030,635 km (0.076 R)
• M14: 15,390,330 km (0.078 R)
• M15: 16,236,605 km (0.053 R)
• M16: 17,563,987 km (0.113 R)
• M17: 19,262,970 km (0.108 R)
• M18: 20,121,362 km (0.111 R)
• M19: 21,262,196 km (0.118 R)
• M20: 22,312,223 km (0.047 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 62.7

Radius: 4

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 7.11 AU - 8.25 AU

Year: 13742 Days

Day: 23.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 77,816,299 km

• M1: 50,564 km (0.118 R)
• M2: 221,255 km (0.095 R)
• M3: 568,472 km (0.086 R)
• M4: 828,473 km (0.03 R)
• M5: 1,025,045 km (0.083 R)
• M6: 1,455,138 km (0.102 R)
• M7: 2,258,629 km (0.069 R)
• M8: 3,341,418 km (0.064 R)
• M9: 3,647,794 km (0.061 R)
• M10: 3,840,626 km (0.086 R)
• M11: 3,972,721 km (0.06 R)
• M12: 4,508,132 km (0.083 R)
• M13: 6,777,532 km (0.098 R)
• M14: 10,122,241 km (0.12 R)
• M15: 11,293,293 km (0.106 R)
• M16: 12,794,807 km (0.101 R)
• M17: 15,733,657 km (0.117 R)
• M18: 17,179,520 km (0.076 R)
• M19: 17,721,065 km (0.059 R)
• M20: 18,838,112 km (0.057 R)
• M21: 19,673,616 km (0.099 R)
• M22: 21,143,116 km (0.116 R)
• M23: 21,974,730 km (0.119 R)
• M24: 22,327,632 km (0.077 R)
• M25: 24,148,836 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 695.9

Radius: 4

Gravity: 43.49 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 7.95 AU - 13.15 AU

Year: 22126 Days

Day: 18.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 77,816,299 km

• M1: 49,966 km (0.096 R)
• M2: 177,423 km (0.072 R)
• M3: 378,483 km (0.117 R)
• M4: 593,006 km (0.045 R)
• M5: 920,476 km (0.12 R)
• M6: 1,554,322 km (0.102 R)
• M7: 1,713,494 km (0.1 R)
• M8: 2,392,668 km (0.1 R)
• M9: 3,466,183 km (0.082 R)
• M10: 5,726,606 km (0.09 R)
• M11: 7,905,350 km (0.108 R)
• M12: 12,500,847 km (0.12 R)
• M13: 14,256,228 km (0.08 R)
• M14: 15,432,965 km (0.044 R)
• M15: 18,246,901 km (0.09 R)
• M16: 20,012,605 km (0.088 R)
• M17: 20,691,031 km (0.067 R)
• M18: 22,298,610 km (0.093 R)
• M19: 27,618,160 km (0.082 R)
• M20: 30,569,577 km (0.078 R)
• M21: 31,598,212 km (0.069 R)
• M22: 32,121,056 km (0.091 R)
• M23: 33,050,059 km (0.067 R)
• M24: 34,683,818 km (0.105 R)
• M25: 37,089,501 km (0.107 R)
• M26: 37,671,287 km (0.093 R)
• M27: 44,805,011 km (0.112 R)
• M28: 52,240,474 km (0.088 R)
• M29: 55,015,963 km (0.084 R)
• M30: 60,657,748 km (0.086 R)
• M31: 61,871,136 km (0.075 R)
• M32: 63,514,170 km (0.065 R)
• M33: 72,846,085 km (0.063 R)
• M34: 74,908,291 km (0.061 R)
• M35: 76,539,058 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 505.8

Radius: 3.1

Gravity: 52.63 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 9.15 AU - 13.17 AU

Year: 24072 Days

Day: 20 Hours

Environment

Temp: -229 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 77,816,299 km

• M1: 39,793 km (0.104 R)
• M2: 156,779 km (0.102 R)
• M3: 275,709 km (0.112 R)
• M4: 660,774 km (0.105 R)
• M5: 2,683,935 km (0.118 R)
• M6: 4,010,270 km (0.099 R)
• M7: 7,220,940 km (0.114 R)
• M8: 8,911,695 km (0.119 R)
• M9: 12,978,812 km (0.083 R)
• M10: 13,191,690 km (0.097 R)
• M11: 13,624,476 km (0.112 R)
• M12: 14,066,688 km (0.093 R)
• M13: 19,027,204 km (0.057 R)
• M14: 23,431,215 km (0.117 R)
• M15: 24,494,407 km (0.11 R)
• M16: 26,716,385 km (0.054 R)
• M17: 35,546,698 km (0.101 R)
• M18: 45,809,262 km (0.086 R)
• M19: 47,467,404 km (0.092 R)
• M20: 55,798,809 km (0.059 R)
• M21: 55,985,956 km (0.103 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: 287 - 17,144 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit