🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.9

Radius: 8.6

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.58 AU - 0.82 AU

Year: 391 Days

Day: 12.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 78.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,997,996 km

• M1: 107,411 km (0.106 R)
• M2: 430,543 km (0.053 R)
• M3: 820,694 km (0.091 R)
• M4: 1,240,316 km (0.068 R)
• M5: 1,663,977 km (0.086 R)
• M6: 1,933,403 km (0.077 R)
• M7: 2,813,338 km (0.102 R)
• M8: 3,221,291 km (0.057 R)
• M9: 4,546,578 km (0.062 R)
• M10: 5,124,924 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.8

Radius: 10.4

Gravity: 8.42 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.77 AU - 1.27 AU

Year: 687 Days

Day: 9.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,997,996 km

• M1: 129,402 km (0.113 R)
• M2: 765,642 km (0.091 R)
• M3: 1,092,812 km (0.114 R)
• M4: 1,433,596 km (0.091 R)
• M5: 2,370,528 km (0.091 R)
• M6: 3,394,525 km (0.087 R)
• M7: 3,834,044 km (0.112 R)
• M8: 4,168,694 km (0.108 R)
• M9: 4,707,845 km (0.079 R)
• M10: 5,146,616 km (0.111 R)
• M11: 5,479,321 km (0.062 R)
• M12: 7,159,156 km (0.074 R)
• M13: 7,836,834 km (0.035 R)
• M14: 8,531,118 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.4

Radius: 14.1

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.11 AU - 1.77 AU

Year: 1152 Days

Day: 7.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,997,996 km

• M1: 175,329 km (0.093 R)
• M2: 629,358 km (0.097 R)
• M3: 1,307,186 km (0.086 R)
• M4: 2,021,217 km (0.102 R)
• M5: 2,498,434 km (0.119 R)
• M6: 3,421,902 km (0.104 R)
• M7: 3,995,310 km (0.089 R)
• M8: 5,013,473 km (0.114 R)
• M9: 6,394,262 km (0.12 R)
• M10: 7,512,506 km (0.079 R)
• M11: 9,201,765 km (0.046 R)
• M12: 9,778,465 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.1

Radius: 14.1

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.14 AU - 2.66 AU

Year: 2479 Days

Day: 9.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 35,997,996 km

• M1: 176,226 km (0.091 R)
• M2: 690,544 km (0.111 R)
• M3: 1,161,179 km (0.086 R)
• M4: 1,803,402 km (0.055 R)
• M5: 2,337,317 km (0.106 R)
• M6: 3,096,826 km (0.057 R)
• M7: 3,543,974 km (0.104 R)
• M8: 4,239,604 km (0.115 R)
• M9: 4,982,357 km (0.098 R)
• M10: 5,486,801 km (0.07 R)
• M11: 6,196,194 km (0.094 R)
• M12: 7,770,263 km (0.079 R)
• M13: 8,239,851 km (0.11 R)
• M14: 8,916,631 km (0.106 R)
• M15: 9,764,103 km (0.076 R)
• M16: 11,098,666 km (0.101 R)
• M17: 13,117,788 km (0.064 R)
• M18: 14,874,666 km (0.115 R)
• M19: 15,463,184 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.7

Radius: 8

Gravity: 15.29 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 3.37 AU - 4.15 AU

Year: 4862 Days

Day: 9.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 35,997,996 km

• M1: 109,506 km (0.099 R)
• M2: 373,845 km (0.095 R)
• M3: 671,096 km (0.076 R)
• M4: 1,091,017 km (0.097 R)
• M5: 1,489,995 km (0.089 R)
• M6: 2,636,363 km (0.119 R)
• M7: 3,424,146 km (0.104 R)
• M8: 4,136,082 km (0.113 R)
• M9: 4,385,611 km (0.087 R)
• M10: 4,671,942 km (0.054 R)
• M11: 5,398,538 km (0.109 R)
• M12: 7,432,920 km (0.116 R)
• M13: 8,701,809 km (0.092 R)
• M14: 8,988,588 km (0.109 R)
• M15: 10,199,134 km (0.112 R)
• M16: 11,368,840 km (0.099 R)
• M17: 13,422,370 km (0.054 R)
• M18: 14,479,578 km (0.112 R)
• M19: 15,471,711 km (0.112 R)
• M20: 17,851,963 km (0.03 R)
• M21: 19,544,812 km (0.034 R)
• M22: 21,120,826 km (0.097 R)
• M23: 22,090,818 km (0.098 R)
• M24: 24,361,415 km (0.097 R)
• M25: 24,849,852 km (0.104 R)
• M26: 26,697,086 km (0.047 R)
• M27: 27,390,921 km (0.09 R)
• M28: 27,830,589 km (0.079 R)
• M29: 29,544,532 km (0.06 R)
• M30: 31,711,906 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.7

Radius: 11.3

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.07 AU - 5.07 AU

Year: 5475 Days

Day: 10.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,997,996 km

• M1: 141,071 km (0.12 R)
• M2: 518,207 km (0.072 R)
• M3: 1,056,161 km (0.11 R)
• M4: 1,600,697 km (0.091 R)
• M5: 2,082,552 km (0.05 R)
• M6: 2,456,397 km (0.091 R)
• M7: 3,404,100 km (0.025 R)
• M8: 5,109,515 km (0.115 R)
• M9: 5,708,655 km (0.064 R)
• M10: 7,609,146 km (0.114 R)
• M11: 8,902,120 km (0.1 R)
• M12: 10,247,903 km (0.12 R)
• M13: 10,831,634 km (0.073 R)
• M14: 13,603,982 km (0.109 R)
• M15: 14,643,388 km (0.031 R)
• M16: 17,378,485 km (0.097 R)
• M17: 19,133,568 km (0.113 R)
• M18: 20,367,301 km (0.101 R)
• M19: 20,932,482 km (0.054 R)
• M20: 21,363,025 km (0.108 R)
• M21: 24,545,271 km (0.06 R)
• M22: 26,499,019 km (0.111 R)
• M23: 27,513,741 km (0.066 R)
• M24: 30,621,487 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 86.3

Radius: 7.3

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 8.34 AU - 9.88 AU

Year: 18336 Days

Day: 17.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,997,996 km

• M1: 91,703 km (0.094 R)
• M2: 686,205 km (0.081 R)
• M3: 1,552,527 km (0.119 R)
• M4: 2,030,193 km (0.098 R)
• M5: 3,428,634 km (0.095 R)
• M6: 4,238,108 km (0.087 R)
• M7: 4,825,878 km (0.064 R)
• M8: 5,081,540 km (0.083 R)
• M9: 7,540,630 km (0.109 R)
• M10: 9,371,858 km (0.115 R)
• M11: 11,183,039 km (0.074 R)
• M12: 11,631,982 km (0.11 R)
• M13: 12,092,893 km (0.052 R)
• M14: 12,406,899 km (0.108 R)
• M15: 17,593,458 km (0.098 R)
• M16: 18,475,337 km (0.091 R)
• M17: 19,386,089 km (0.117 R)
• M18: 19,961,442 km (0.108 R)
• M19: 26,971,449 km (0.1 R)
• M20: 29,914,787 km (0.041 R)
• M21: 32,963,741 km (0.077 R)
• M22: 34,301,894 km (0.086 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: 187 - 17,527 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit