🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.8

Radius: 12.3

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.87 AU - 1.31 AU

Year: 724 Days

Day: 6.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,175,498 km

• M1: 153,039 km (0.076 R)
• M2: 545,284 km (0.106 R)
• M3: 1,379,741 km (0.091 R)
• M4: 1,807,142 km (0.118 R)
• M5: 2,202,978 km (0.085 R)
• M6: 3,277,839 km (0.116 R)
• M7: 3,729,475 km (0.095 R)
• M8: 4,160,616 km (0.115 R)
• M9: 4,913,392 km (0.066 R)
• M10: 5,304,441 km (0.111 R)
• M11: 5,832,372 km (0.105 R)
• M12: 6,732,951 km (0.031 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.1

Radius: 13.6

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.37 AU - 1.59 AU

Year: 1145 Days

Day: 10.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,175,498 km

• M1: 169,195 km (0.078 R)
• M2: 1,244,654 km (0.079 R)
• M3: 1,694,495 km (0.096 R)
• M4: 2,962,038 km (0.085 R)
• M5: 3,728,129 km (0.081 R)
• M6: 4,804,934 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.3

Radius: 14.7

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.1 AU - 2.24 AU

Year: 2032 Days

Day: 6.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,175,498 km

• M1: 182,958 km (0.025 R)
• M2: 661,372 km (0.071 R)
• M3: 1,245,851 km (0.11 R)
• M4: 1,802,355 km (0.058 R)
• M5: 2,297,524 km (0.052 R)
• M6: 3,540,832 km (0.114 R)
• M7: 4,011,018 km (0.103 R)
• M8: 4,721,608 km (0.106 R)
• M9: 6,107,183 km (0.1 R)
• M10: 6,671,467 km (0.099 R)
• M11: 8,912,443 km (0.05 R)
• M12: 10,790,195 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.7

Radius: 9.7

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.45 AU - 2.57 AU

Year: 2528 Days

Day: 8.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 111.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,175,498 km

• M1: 120,725 km (0.101 R)
• M2: 480,658 km (0.099 R)
• M3: 806,632 km (0.08 R)
• M4: 1,222,963 km (0.11 R)
• M5: 1,832,424 km (0.102 R)
• M6: 2,165,728 km (0.106 R)
• M7: 2,646,686 km (0.103 R)
• M8: 3,244,329 km (0.086 R)
• M9: 3,823,422 km (0.082 R)
• M10: 4,147,451 km (0.047 R)
• M11: 4,809,721 km (0.038 R)
• M12: 5,700,277 km (0.12 R)
• M13: 6,028,495 km (0.028 R)
• M14: 6,620,454 km (0.057 R)
• M15: 7,891,886 km (0.108 R)
• M16: 10,558,019 km (0.084 R)
• M17: 11,054,385 km (0.057 R)
• M18: 12,637,430 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.4

Radius: 14.4

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 3.09 AU - 4.63 AU

Year: 4822 Days

Day: 7.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,175,498 km

• M1: 179,069 km (0.078 R)
• M2: 633,547 km (0.115 R)
• M3: 1,270,535 km (0.037 R)
• M4: 2,042,759 km (0.041 R)
• M5: 2,670,172 km (0.085 R)
• M6: 3,266,320 km (0.113 R)
• M7: 4,110,949 km (0.088 R)
• M8: 4,888,110 km (0.1 R)
• M9: 5,484,108 km (0.053 R)
• M10: 6,399,797 km (0.098 R)
• M11: 9,049,474 km (0.114 R)
• M12: 9,511,283 km (0.086 R)
• M13: 10,026,199 km (0.107 R)
• M14: 10,833,579 km (0.095 R)
• M15: 12,061,777 km (0.106 R)
• M16: 12,930,941 km (0.084 R)
• M17: 16,046,316 km (0.113 R)
• M18: 17,422,318 km (0.118 R)
• M19: 17,916,439 km (0.1 R)
• M20: 18,703,923 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200

Radius: 10.5

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.88 AU - 4.48 AU

Year: 5434 Days

Day: 11.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 129.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,175,498 km

• M1: 131,197 km (0.12 R)
• M2: 475,422 km (0.11 R)
• M3: 914,641 km (0.11 R)
• M4: 1,507,947 km (0.106 R)
• M5: 3,747,576 km (0.118 R)
• M6: 4,131,145 km (0.089 R)
• M7: 4,563,333 km (0.116 R)
• M8: 4,954,233 km (0.087 R)
• M9: 5,367,572 km (0.089 R)
• M10: 7,790,459 km (0.07 R)
• M11: 9,079,693 km (0.071 R)
• M12: 16,463,844 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 162.1

Radius: 4

Gravity: 10.13 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 5.35 AU - 8.79 AU

Year: 11953 Days

Day: 23.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 73,175,498 km

• M1: 49,816 km (0.112 R)
• M2: 219,460 km (0.063 R)
• M3: 510,727 km (0.093 R)
• M4: 677,230 km (0.082 R)
• M5: 871,408 km (0.09 R)
• M6: 1,406,968 km (0.043 R)
• M7: 2,167,673 km (0.078 R)
• M8: 2,700,690 km (0.104 R)
• M9: 3,253,006 km (0.064 R)
• M10: 4,069,212 km (0.096 R)
• M11: 4,395,036 km (0.064 R)
• M12: 5,013,623 km (0.099 R)
• M13: 5,155,442 km (0.113 R)
• M14: 5,905,077 km (0.104 R)
• M15: 6,063,351 km (0.083 R)
• M16: 6,257,081 km (0.114 R)
• M17: 6,588,889 km (0.116 R)
• M18: 6,828,096 km (0.116 R)
• M19: 7,396,568 km (0.097 R)
• M20: 9,164,066 km (0.06 R)
• M21: 9,766,796 km (0.061 R)
• M22: 11,339,668 km (0.117 R)
• M23: 13,127,213 km (0.098 R)
• M24: 13,505,995 km (0.102 R)
• M25: 16,426,295 km (0.035 R)
• M26: 20,670,835 km (0.04 R)
• M27: 21,183,208 km (0.065 R)
• M28: 22,539,762 km (0.055 R)
• M29: 25,175,377 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 510.5

Radius: 7.2

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 8.75 AU - 12.39 AU

Year: 21850 Days

Day: 18.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,175,498 km

• M1: 90,208 km (0.041 R)
• M2: 737,817 km (0.082 R)
• M3: 1,190,949 km (0.113 R)
• M4: 1,560,306 km (0.102 R)
• M5: 2,529,550 km (0.097 R)
• M6: 2,962,038 km (0.066 R)
• M7: 3,761,638 km (0.059 R)
• M8: 4,163,608 km (0.088 R)
• M9: 6,486,564 km (0.094 R)
• M10: 7,677,512 km (0.053 R)
• M11: 12,116,979 km (0.091 R)
• M12: 12,993,473 km (0.031 R)
• M13: 17,339,889 km (0.061 R)
• M14: 26,916,546 km (0.034 R)
• M15: 31,170,063 km (0.112 R)
• M16: 38,357,792 km (0.085 R)
• M17: 47,885,680 km (0.111 R)
• M18: 49,895,527 km (0.119 R)
• M19: 50,921,320 km (0.086 R)
• M20: 53,903,703 km (0.087 R)
• M21: 56,261,665 km (0.117 R)
• M22: 57,559,277 km (0.1 R)
• M23: 64,146,969 km (0.081 R)
• M24: 65,971,315 km (0.096 R)
• M25: 67,413,887 km (0.096 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 14,918 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit