🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339

Radius: 10.7

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.66 AU - 0.98 AU

Year: 472 Days

Day: 12.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,816,711 km

• M1: 134,189 km (0.081 R)
• M2: 484,996 km (0.073 R)
• M3: 875,297 km (0.047 R)
• M4: 1,292,825 km (0.117 R)
• M5: 1,695,841 km (0.045 R)
• M6: 2,039,019 km (0.084 R)
• M7: 2,790,449 km (0.087 R)
• M8: 3,565,216 km (0.074 R)
• M9: 4,009,821 km (0.104 R)
• M10: 4,613,898 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.5

Radius: 14.4

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.36 AU - 1.66 AU

Year: 1180 Days

Day: 9.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 169.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,816,711 km

• M1: 179,069 km (0.118 R)
• M2: 668,702 km (0.103 R)
• M3: 1,148,313 km (0.075 R)
• M4: 1,887,327 km (0.11 R)
• M5: 2,503,221 km (0.104 R)
• M6: 3,435,665 km (0.054 R)
• M7: 4,295,553 km (0.086 R)
• M8: 4,749,882 km (0.109 R)
• M9: 6,377,357 km (0.096 R)
• M10: 7,881,115 km (0.099 R)
• M11: 8,812,960 km (0.108 R)
• M12: 10,209,007 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.7

Radius: 14.1

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.35 AU - 1.71 AU

Year: 1203 Days

Day: 8.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,816,711 km

• M1: 175,478 km (0.117 R)
• M2: 633,248 km (0.115 R)
• M3: 1,350,420 km (0.09 R)
• M4: 1,853,817 km (0.091 R)
• M5: 2,735,547 km (0.074 R)
• M6: 4,992,231 km (0.118 R)
• M7: 5,640,737 km (0.118 R)
• M8: 6,365,539 km (0.061 R)
• M9: 7,789,112 km (0.118 R)
• M10: 8,242,992 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.4

Radius: 14.9

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.04 AU - 3.14 AU

Year: 2650 Days

Day: 10.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,816,711 km

• M1: 185,352 km (0.111 R)
• M2: 671,395 km (0.116 R)
• M3: 1,140,385 km (0.082 R)
• M4: 1,714,092 km (0.09 R)
• M5: 2,321,161 km (0.026 R)
• M6: 3,023,523 km (0.12 R)
• M7: 4,132,641 km (0.042 R)
• M8: 6,092,224 km (0.095 R)
• M9: 6,619,257 km (0.052 R)
• M10: 7,979,401 km (0.098 R)
• M11: 9,175,735 km (0.069 R)
• M12: 10,451,506 km (0.098 R)
• M13: 11,883,008 km (0.098 R)
• M14: 13,529,781 km (0.052 R)
• M15: 14,293,329 km (0.092 R)
• M16: 15,085,599 km (0.092 R)
• M17: 16,154,176 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.5

Radius: 10.7

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.24 AU - 5.32 AU

Year: 5630 Days

Day: 5.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 74,816,711 km

• M1: 133,740 km (0.114 R)
• M2: 711,188 km (0.087 R)
• M3: 1,346,680 km (0.11 R)
• M4: 1,936,694 km (0.106 R)
• M5: 2,607,192 km (0.1 R)
• M6: 3,167,885 km (0.12 R)
• M7: 3,571,200 km (0.096 R)
• M8: 3,918,417 km (0.119 R)
• M9: 4,860,734 km (0.072 R)
• M10: 6,313,180 km (0.097 R)
• M11: 10,095,612 km (0.105 R)
• M12: 10,572,680 km (0.095 R)
• M13: 10,929,022 km (0.108 R)
• M14: 11,385,744 km (0.111 R)
• M15: 13,705,559 km (0.097 R)
• M16: 14,893,066 km (0.045 R)
• M17: 15,511,803 km (0.084 R)
• M18: 16,265,178 km (0.118 R)
• M19: 17,348,267 km (0.111 R)
• M20: 19,062,359 km (0.107 R)
• M21: 20,402,756 km (0.083 R)
• M22: 21,307,075 km (0.078 R)
• M23: 23,420,594 km (0.055 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 239.8

Radius: 5

Gravity: 9.59 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 6.3 AU - 9 AU

Year: 13453 Days

Day: 17 Hours

Environment

Temp: -221 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 74,816,711 km

• M1: 63,729 km (0.113 R)
• M2: 651,948 km (0.082 R)
• M3: 835,803 km (0.049 R)
• M4: 1,033,871 km (0.107 R)
• M5: 1,996,084 km (0.047 R)
• M6: 3,042,970 km (0.11 R)
• M7: 3,808,014 km (0.111 R)
• M8: 4,275,806 km (0.11 R)
• M9: 4,608,213 km (0.059 R)
• M10: 5,579,402 km (0.102 R)
• M11: 6,251,545 km (0.089 R)
• M12: 8,334,097 km (0.084 R)
• M13: 8,677,574 km (0.117 R)
• M14: 15,597,822 km (0.101 R)
• M15: 16,787,275 km (0.063 R)
• M16: 17,404,067 km (0.088 R)
• M17: 18,107,027 km (0.076 R)
• M18: 21,030,020 km (0.095 R)
• M19: 21,989,092 km (0.087 R)
• M20: 22,151,705 km (0.068 R)
• M21: 28,362,709 km (0.073 R)
• M22: 28,846,209 km (0.106 R)
• M23: 29,631,299 km (0.052 R)
• M24: 31,552,435 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 287

Radius: 3.7

Gravity: 20.96 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 7.2 AU - 9.72 AU

Year: 15645 Days

Day: 15.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 74,816,711 km

• M1: 46,076 km (0.038 R)
• M2: 255,214 km (0.089 R)
• M3: 525,986 km (0.112 R)
• M4: 649,105 km (0.116 R)
• M5: 856,149 km (0.103 R)
• M6: 1,017,864 km (0.08 R)
• M7: 2,098,858 km (0.03 R)
• M8: 3,044,915 km (0.104 R)
• M9: 3,301,775 km (0.119 R)
• M10: 3,572,996 km (0.114 R)
• M11: 4,216,117 km (0.104 R)
• M12: 4,777,258 km (0.083 R)
• M13: 5,555,317 km (0.076 R)
• M14: 5,938,736 km (0.098 R)
• M15: 6,527,703 km (0.098 R)
• M16: 7,074,035 km (0.111 R)
• M17: 7,650,286 km (0.116 R)
• M18: 7,863,462 km (0.072 R)
• M19: 8,802,339 km (0.113 R)
• M20: 9,036,459 km (0.113 R)
• M21: 10,581,805 km (0.094 R)
• M22: 11,779,636 km (0.097 R)
• M23: 12,528,373 km (0.086 R)
• M24: 12,884,416 km (0.105 R)
• M25: 14,376,206 km (0.07 R)
• M26: 16,187,986 km (0.119 R)
• M27: 16,752,568 km (0.078 R)
• M28: 17,039,796 km (0.088 R)
• M29: 17,698,026 km (0.08 R)
• M30: 18,987,261 km (0.108 R)
• M31: 25,805,633 km (0.054 R)
• M32: 26,966,063 km (0.103 R)
• M33: 30,762,558 km (0.03 R)
• M34: 32,066,304 km (0.108 R)
• M35: 39,646,727 km (0.113 R)
• M36: 39,901,193 km (0.099 R)
• M37: 45,637,374 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 431.5

Radius: 3.4

Gravity: 37.33 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 8.62 AU - 14.24 AU

Year: 24570 Days

Day: 20.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 74,816,711 km

• M1: 42,336 km (0.063 R)
• M2: 354,397 km (0.108 R)
• M3: 464,053 km (0.085 R)
• M4: 686,505 km (0.043 R)
• M5: 1,311,525 km (0.081 R)
• M6: 1,465,610 km (0.12 R)
• M7: 2,632,923 km (0.109 R)
• M8: 5,195,833 km (0.119 R)
• M9: 5,542,751 km (0.102 R)
• M10: 9,166,610 km (0.114 R)
• M11: 9,501,709 km (0.104 R)
• M12: 10,739,182 km (0.118 R)
• M13: 15,166,382 km (0.037 R)
• M14: 15,556,084 km (0.031 R)
• M15: 16,848,311 km (0.091 R)
• M16: 19,278,678 km (0.063 R)
• M17: 22,733,640 km (0.096 R)
• M18: 25,252,719 km (0.064 R)
• M19: 28,301,972 km (0.082 R)
• M20: 31,085,690 km (0.075 R)
• M21: 40,520,977 km (0.116 R)
• M22: 46,614,547 km (0.098 R)
• M23: 48,437,397 km (0.101 R)
• M24: 51,872,463 km (0.084 R)
• M25: 57,136,513 km (0.101 R)
• M26: 61,555,933 km (0.069 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 179 - 17,500 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit