🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.7

Radius: 11

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.79 AU - 0.81 AU

Year: 503 Days

Day: 7.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,265,336 km

• M1: 137,630 km (0.093 R)
• M2: 543,938 km (0.103 R)
• M3: 925,263 km (0.105 R)
• M4: 1,285,644 km (0.032 R)
• M5: 1,832,125 km (0.055 R)
• M6: 2,665,984 km (0.096 R)
• M7: 3,086,054 km (0.081 R)
• M8: 3,513,904 km (0.066 R)
• M9: 5,423,072 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234

Radius: 12.9

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.81 AU - 0.95 AU

Year: 580 Days

Day: 11 Hours

Environment

Temp: -163 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,265,336 km

• M1: 160,369 km (0.118 R)
• M2: 698,173 km (0.102 R)
• M3: 1,148,762 km (0.077 R)
• M4: 1,813,725 km (0.041 R)
• M5: 2,269,400 km (0.068 R)
• M6: 2,687,227 km (0.069 R)
• M7: 3,114,628 km (0.08 R)
• M8: 4,109,005 km (0.111 R)
• M9: 4,597,591 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.4

Radius: 10.5

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.95 AU - 1.45 AU

Year: 924 Days

Day: 5.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,265,336 km

• M1: 136,284 km (0.083 R)
• M2: 491,728 km (0.071 R)
• M3: 929,452 km (0.119 R)
• M4: 1,606,083 km (0.085 R)
• M5: 2,018,973 km (0.096 R)
• M6: 2,448,169 km (0.069 R)
• M7: 2,876,917 km (0.109 R)
• M8: 3,526,620 km (0.048 R)
• M9: 4,063,228 km (0.092 R)
• M10: 4,556,003 km (0.099 R)
• M11: 4,940,320 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.8

Radius: 13

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.26 AU - 1.32 AU

Year: 1030 Days

Day: 12.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,265,336 km

• M1: 161,715 km (0.07 R)
• M2: 758,012 km (0.119 R)
• M3: 1,202,916 km (0.031 R)
• M4: 1,678,339 km (0.117 R)
• M5: 2,456,547 km (0.113 R)
• M6: 3,044,167 km (0.113 R)
• M7: 3,748,623 km (0.047 R)
• M8: 4,205,944 km (0.027 R)
• M9: 5,007,041 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.1

Radius: 11.1

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.63 AU - 4.29 AU

Year: 4524 Days

Day: 12 Hours

Environment

Temp: -207 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,265,336 km

• M1: 182,210 km (0.081 R)
• M2: 559,945 km (0.061 R)
• M3: 1,068,578 km (0.048 R)
• M4: 1,890,468 km (0.05 R)
• M5: 3,189,576 km (0.079 R)
• M6: 3,727,081 km (0.115 R)
• M7: 5,536,168 km (0.054 R)
• M8: 6,098,208 km (0.104 R)
• M9: 7,582,069 km (0.113 R)
• M10: 10,262,115 km (0.092 R)
• M11: 10,929,022 km (0.116 R)
• M12: 11,436,159 km (0.06 R)
• M13: 12,201,950 km (0.113 R)
• M14: 13,518,711 km (0.077 R)
• M15: 15,437,902 km (0.099 R)
• M16: 16,135,926 km (0.111 R)
• M17: 16,915,630 km (0.056 R)
• M18: 19,272,843 km (0.114 R)
• M19: 19,809,900 km (0.107 R)
• M20: 22,424,870 km (0.102 R)
• M21: 23,169,419 km (0.092 R)
• M22: 26,807,938 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 733.1

Radius: 5.2

Gravity: 27.11 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 5.45 AU - 5.75 AU

Year: 9315 Days

Day: 17.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,265,336 km

• M1: 64,626 km (0.08 R)
• M2: 360,381 km (0.117 R)
• M3: 726,597 km (0.114 R)
• M4: 973,733 km (0.117 R)
• M5: 1,712,596 km (0.1 R)
• M6: 1,916,349 km (0.076 R)
• M7: 3,283,224 km (0.119 R)
• M8: 4,760,055 km (0.109 R)
• M9: 6,745,368 km (0.11 R)
• M10: 12,537,798 km (0.086 R)
• M11: 16,151,484 km (0.116 R)
• M12: 18,607,582 km (0.107 R)
• M13: 22,568,933 km (0.037 R)
• M14: 25,813,561 km (0.119 R)
• M15: 26,574,566 km (0.087 R)
• M16: 31,998,087 km (0.106 R)
• M17: 46,764,743 km (0.065 R)

Asteroid Belt

Center: 6.74 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 353.5

Radius: 4.5

Gravity: 17.46 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 6.27 AU - 9.47 AU

Year: 15519 Days

Day: 23.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 73,265,336 km

• M1: 56,099 km (0.097 R)
• M2: 266,883 km (0.076 R)
• M3: 604,076 km (0.089 R)
• M4: 1,174,044 km (0.054 R)
• M5: 1,574,817 km (0.103 R)
• M6: 1,806,993 km (0.079 R)
• M7: 2,097,213 km (0.079 R)
• M8: 2,600,609 km (0.113 R)
• M9: 3,501,189 km (0.11 R)
• M10: 4,592,505 km (0.105 R)
• M11: 5,001,805 km (0.111 R)
• M12: 7,462,839 km (0.101 R)
• M13: 13,934,294 km (0.073 R)
• M14: 14,655,505 km (0.071 R)
• M15: 15,401,101 km (0.065 R)
• M16: 15,748,317 km (0.056 R)
• M17: 15,888,640 km (0.073 R)
• M18: 25,825,230 km (0.091 R)
• M19: 27,822,062 km (0.08 R)
• M20: 31,116,656 km (0.076 R)
• M21: 31,783,115 km (0.115 R)
• M22: 34,190,294 km (0.049 R)
• M23: 36,347,944 km (0.074 R)
• M24: 37,460,204 km (0.041 R)
• M25: 39,622,492 km (0.04 R)
• M26: 40,536,535 km (0.108 R)
• M27: 47,040,751 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 699.9

Radius: 7.1

Gravity: 13.88 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 8.06 AU - 9.76 AU

Year: 18695 Days

Day: 18.1 Hours

Environment

Temp: -244 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 73,265,336 km

• M1: 100,530 km (0.062 R)
• M2: 340,186 km (0.1 R)
• M3: 700,417 km (0.093 R)
• M4: 1,087,277 km (0.12 R)
• M5: 1,928,915 km (0.087 R)
• M6: 2,247,259 km (0.106 R)
• M7: 3,067,205 km (0.092 R)
• M8: 12,802,137 km (0.109 R)
• M9: 13,927,412 km (0.101 R)
• M10: 14,439,934 km (0.032 R)
• M11: 16,616,583 km (0.115 R)
• M12: 18,212,344 km (0.104 R)
• M13: 18,913,808 km (0.107 R)
• M14: 21,030,917 km (0.104 R)
• M15: 21,705,454 km (0.097 R)
• M16: 32,211,264 km (0.11 R)
• M17: 34,681,274 km (0.105 R)
• M18: 36,579,971 km (0.098 R)
• M19: 43,771,140 km (0.081 R)
• M20: 50,811,216 km (0.119 R)
• M21: 55,050,820 km (0.117 R)
• M22: 58,759,052 km (0.085 R)
• M23: 60,674,204 km (0.104 R)
• M24: 65,033,186 km (0.082 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 15,308 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit