🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.3

Radius: 8.2

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.58 AU - 0.58 AU

Year: 310 Days

Day: 14.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,456,062 km

• M1: 102,026 km (0.103 R)
• M2: 366,964 km (0.106 R)
• M3: 699,819 km (0.11 R)
• M4: 1,064,389 km (0.119 R)
• M5: 1,593,816 km (0.086 R)
• M6: 2,531,046 km (0.101 R)
• M7: 2,887,239 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.1

Radius: 14.9

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.81 AU - 0.93 AU

Year: 570 Days

Day: 14.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,456,062 km

• M1: 185,651 km (0.054 R)
• M2: 722,259 km (0.091 R)
• M3: 1,494,483 km (0.034 R)
• M4: 2,046,349 km (0.03 R)
• M5: 2,806,606 km (0.114 R)
• M6: 3,346,953 km (0.111 R)
• M7: 3,917,519 km (0.1 R)
• M8: 4,972,783 km (0.043 R)
• M9: 5,568,033 km (0.116 R)
• M10: 6,120,797 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.8

Radius: 15

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.83 AU - 0.95 AU

Year: 590 Days

Day: 10.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,456,062 km

• M1: 186,698 km (0.037 R)
• M2: 655,388 km (0.098 R)
• M3: 1,167,761 km (0.093 R)
• M4: 1,808,788 km (0.081 R)
• M5: 2,558,273 km (0.099 R)
• M6: 3,307,908 km (0.12 R)
• M7: 3,913,779 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.3

Radius: 9.4

Gravity: 8.55 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.58 AU - 2.1 AU

Year: 1754 Days

Day: 8 Hours

Environment

Temp: -205 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,456,062 km

• M1: 135,835 km (0.09 R)
• M2: 635,941 km (0.053 R)
• M3: 1,023,549 km (0.094 R)
• M4: 1,341,444 km (0.063 R)
• M5: 1,906,924 km (0.051 R)
• M6: 2,475,396 km (0.042 R)
• M7: 3,312,396 km (0.086 R)
• M8: 4,116,784 km (0.062 R)
• M9: 4,790,872 km (0.107 R)
• M10: 5,794,225 km (0.054 R)
• M11: 6,614,769 km (0.105 R)
• M12: 7,012,400 km (0.034 R)
• M13: 10,435,199 km (0.118 R)
• M14: 10,829,240 km (0.08 R)
• M15: 12,071,351 km (0.091 R)
• M16: 12,991,528 km (0.077 R)
• M17: 14,480,625 km (0.096 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 307.8

Radius: 6.7

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.71 AU - 6.55 AU

Year: 9390 Days

Day: 18.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 64,456,062 km

• M1: 83,625 km (0.095 R)
• M2: 437,275 km (0.099 R)
• M3: 922,271 km (0.112 R)
• M4: 1,234,182 km (0.062 R)
• M5: 1,668,016 km (0.105 R)
• M6: 2,166,776 km (0.118 R)
• M7: 2,575,477 km (0.063 R)
• M8: 3,157,413 km (0.059 R)
• M9: 4,291,664 km (0.091 R)
• M10: 4,936,730 km (0.119 R)
• M11: 6,760,328 km (0.036 R)
• M12: 7,631,735 km (0.114 R)
• M13: 8,823,731 km (0.083 R)
• M14: 9,247,243 km (0.03 R)
• M15: 9,998,224 km (0.05 R)
• M16: 11,721,741 km (0.073 R)
• M17: 13,467,548 km (0.111 R)
• M18: 13,802,498 km (0.097 R)
• M19: 19,307,101 km (0.043 R)
• M20: 21,958,424 km (0.066 R)
• M21: 23,371,077 km (0.071 R)
• M22: 25,010,520 km (0.074 R)
• M23: 25,347,265 km (0.096 R)
• M24: 26,988,802 km (0.098 R)
• M25: 28,608,050 km (0.104 R)
• M26: 29,162,011 km (0.071 R)
• M27: 30,291,175 km (0.094 R)
• M28: 31,059,959 km (0.059 R)
• M29: 31,449,063 km (0.078 R)
• M30: 32,937,711 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 379.6

Radius: 3.1

Gravity: 39.5 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 5.31 AU - 6.77 AU

Year: 10434 Days

Day: 17.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,456,062 km

• M1: 44,879 km (0.116 R)
• M2: 505,641 km (0.096 R)
• M3: 835,055 km (0.045 R)
• M4: 2,608,837 km (0.099 R)
• M5: 2,847,895 km (0.046 R)
• M6: 4,028,820 km (0.096 R)
• M7: 4,513,667 km (0.083 R)
• M8: 5,312,071 km (0.055 R)
• M9: 9,870,168 km (0.096 R)
• M10: 16,636,031 km (0.087 R)
• M11: 22,024,547 km (0.114 R)
• M12: 26,136,992 km (0.085 R)
• M13: 28,372,882 km (0.105 R)
• M14: 31,857,016 km (0.117 R)
• M15: 32,796,940 km (0.11 R)
• M16: 34,622,333 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 201.9

Radius: 6.6

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 7.66 AU - 7.74 AU

Year: 15019 Days

Day: 23.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 64,456,062 km

• M1: 82,129 km (0.05 R)
• M2: 325,525 km (0.093 R)
• M3: 576,999 km (0.072 R)
• M4: 903,870 km (0.092 R)
• M5: 1,623,885 km (0.039 R)
• M6: 2,062,805 km (0.117 R)
• M7: 2,938,701 km (0.109 R)
• M8: 4,757,661 km (0.085 R)
• M9: 5,851,970 km (0.103 R)
• M10: 6,123,938 km (0.062 R)
• M11: 8,186,594 km (0.089 R)
• M12: 8,527,228 km (0.103 R)
• M13: 8,921,718 km (0.095 R)
• M14: 10,472,749 km (0.113 R)
• M15: 10,976,295 km (0.109 R)
• M16: 12,416,324 km (0.098 R)
• M17: 12,923,162 km (0.106 R)
• M18: 13,561,346 km (0.078 R)
• M19: 14,963,078 km (0.093 R)
• M20: 17,001,499 km (0.088 R)
• M21: 18,555,970 km (0.111 R)
• M22: 19,442,487 km (0.055 R)
• M23: 21,140,722 km (0.091 R)
• M24: 21,379,780 km (0.082 R)
• M25: 23,357,164 km (0.103 R)
• M26: 23,698,247 km (0.081 R)
• M27: 27,011,840 km (0.053 R)
• M28: 31,133,112 km (0.053 R)
• M29: 36,677,658 km (0.114 R)
• M30: 38,544,041 km (0.051 R)
• M31: 38,900,832 km (0.082 R)
• M32: 40,106,292 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 572.1

Radius: 4.3

Gravity: 30.94 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 6.83 AU - 10.15 AU

Year: 17389 Days

Day: 19.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 64,456,062 km

• M1: 60,288 km (0.094 R)
• M2: 248,183 km (0.06 R)
• M3: 415,134 km (0.069 R)
• M4: 552,166 km (0.097 R)
• M5: 766,988 km (0.106 R)
• M6: 1,173,595 km (0.114 R)
• M7: 1,337,255 km (0.094 R)
• M8: 1,611,468 km (0.112 R)
• M9: 2,549,597 km (0.106 R)
• M10: 2,873,775 km (0.115 R)
• M11: 3,330,348 km (0.111 R)
• M12: 3,575,988 km (0.098 R)
• M13: 4,483,149 km (0.108 R)
• M14: 4,851,160 km (0.109 R)
• M15: 4,989,837 km (0.116 R)
• M16: 6,036,424 km (0.118 R)
• M17: 7,356,924 km (0.114 R)
• M18: 7,586,557 km (0.071 R)
• M19: 8,453,028 km (0.081 R)
• M20: 10,553,232 km (0.089 R)
• M21: 11,692,270 km (0.087 R)
• M22: 14,211,648 km (0.101 R)
• M23: 15,824,164 km (0.076 R)
• M24: 16,595,789 km (0.114 R)
• M25: 24,600,323 km (0.09 R)
• M26: 25,010,520 km (0.073 R)
• M27: 31,123,239 km (0.088 R)
• M28: 31,966,223 km (0.066 R)
• M29: 35,230,448 km (0.039 R)
• M30: 41,392,833 km (0.027 R)
• M31: 43,447,261 km (0.053 R)
• M32: 43,746,157 km (0.12 R)
• M33: 48,236,038 km (0.085 R)
• M34: 53,364,852 km (0.088 R)
• M35: 59,578,549 km (0.074 R)
• M36: 62,763,338 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 503.2

Radius: 5.3

Gravity: 17.91 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 7.77 AU - 9.73 AU

Year: 18194 Days

Day: 16.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,456,062 km

• M1: 151,543 km (0.096 R)
• M2: 480,209 km (0.084 R)
• M3: 1,250,638 km (0.094 R)
• M4: 2,898,309 km (0.036 R)
• M5: 4,634,841 km (0.12 R)
• M6: 5,513,579 km (0.11 R)
• M7: 7,923,002 km (0.088 R)
• M8: 9,815,864 km (0.114 R)
• M9: 14,324,744 km (0.082 R)
• M10: 15,786,166 km (0.053 R)
• M11: 16,866,412 km (0.046 R)
• M12: 17,424,562 km (0.106 R)
• M13: 22,151,705 km (0.118 R)
• M14: 25,424,906 km (0.117 R)
• M15: 27,777,482 km (0.061 R)
• M16: 34,412,447 km (0.089 R)
• M17: 37,283,978 km (0.112 R)
• M18: 38,366,618 km (0.1 R)
• M19: 38,915,792 km (0.063 R)
• M20: 39,889,375 km (0.098 R)
• M21: 56,856,316 km (0.039 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 253 - 16,352 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit