🌌 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: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.5

Radius: 13.4

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.56 AU - 0.82 AU

Year: 403 Days

Day: 9 Hours

Environment

Temp: -159 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,979,573 km

• M1: 166,802 km (0.11 R)
• M2: 641,326 km (0.087 R)
• M3: 1,626,727 km (0.113 R)
• M4: 2,348,687 km (0.082 R)
• M5: 2,821,865 km (0.033 R)
• M6: 3,430,728 km (0.064 R)
• M7: 4,044,378 km (0.099 R)
• M8: 4,464,599 km (0.118 R)
• M9: 4,913,991 km (0.104 R)
• M10: 5,443,418 km (0.093 R)
• M11: 5,869,622 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81

Radius: 13.2

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.72 AU - 0.9 AU

Year: 512 Days

Day: 12 Hours

Environment

Temp: -161 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 59,979,573 km

• M1: 168,597 km (0.111 R)
• M2: 641,326 km (0.079 R)
• M3: 1,172,099 km (0.04 R)
• M4: 1,951,803 km (0.106 R)
• M5: 2,509,504 km (0.104 R)
• M6: 3,127,194 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.3

Radius: 13

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.98 AU - 3.06 AU

Year: 2812 Days

Day: 11.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,979,573 km

• M1: 161,715 km (0.091 R)
• M2: 584,628 km (0.118 R)
• M3: 1,086,529 km (0.048 R)
• M4: 1,646,474 km (0.041 R)
• M5: 2,663,889 km (0.062 R)
• M6: 3,592,294 km (0.04 R)
• M7: 4,253,516 km (0.084 R)
• M8: 4,725,946 km (0.1 R)
• M9: 5,314,614 km (0.11 R)
• M10: 5,996,032 km (0.057 R)
• M11: 7,482,287 km (0.103 R)
• M12: 8,479,357 km (0.115 R)
• M13: 9,142,524 km (0.117 R)
• M14: 10,249,848 km (0.116 R)
• M15: 10,969,413 km (0.054 R)
• M16: 11,722,340 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.2

Radius: 8.6

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.22 AU - 3 AU

Year: 2964 Days

Day: 7.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,979,573 km

• M1: 106,962 km (0.086 R)
• M2: 390,600 km (0.039 R)
• M3: 963,261 km (0.056 R)
• M4: 1,293,573 km (0.041 R)
• M5: 1,624,334 km (0.1 R)
• M6: 2,459,688 km (0.037 R)
• M7: 2,753,498 km (0.11 R)
• M8: 3,221,441 km (0.071 R)
• M9: 3,779,291 km (0.059 R)
• M10: 4,192,780 km (0.083 R)
• M11: 5,518,217 km (0.065 R)
• M12: 6,371,074 km (0.116 R)
• M13: 8,766,884 km (0.041 R)
• M14: 9,246,644 km (0.038 R)
• M15: 10,560,862 km (0.105 R)
• M16: 11,342,660 km (0.102 R)
• M17: 12,036,944 km (0.116 R)
• M18: 13,109,261 km (0.113 R)
• M19: 14,058,011 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.2

Radius: 12.3

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 4.51 AU - 5.21 AU

Year: 7531 Days

Day: 8 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,979,573 km

• M1: 174,581 km (0.039 R)
• M2: 749,934 km (0.066 R)
• M3: 1,225,207 km (0.073 R)
• M4: 4,188,890 km (0.094 R)
• M5: 4,766,487 km (0.12 R)
• M6: 6,010,842 km (0.118 R)
• M7: 7,111,135 km (0.097 R)
• M8: 7,793,750 km (0.117 R)
• M9: 10,514,935 km (0.038 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.3

Radius: 9.6

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 5.24 AU - 5.42 AU

Year: 8650 Days

Day: 10.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,979,573 km

• M1: 119,379 km (0.066 R)
• M2: 591,360 km (0.1 R)
• M3: 1,342,940 km (0.05 R)
• M4: 2,932,717 km (0.067 R)
• M5: 4,427,947 km (0.117 R)
• M6: 5,055,361 km (0.08 R)
• M7: 11,791,903 km (0.072 R)
• M8: 16,620,922 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 336.5

Radius: 3.4

Gravity: 29.11 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 5.58 AU - 6.18 AU

Year: 10022 Days

Day: 15.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 59,979,573 km

• M1: 42,336 km (0.071 R)
• M2: 194,328 km (0.029 R)
• M3: 344,973 km (0.112 R)
• M4: 552,315 km (0.104 R)
• M5: 1,529,339 km (0.07 R)
• M6: 1,974,393 km (0.083 R)
• M7: 2,574,280 km (0.093 R)
• M8: 3,513,007 km (0.057 R)
• M9: 3,821,926 km (0.068 R)
• M10: 5,061,195 km (0.104 R)
• M11: 5,771,336 km (0.115 R)
• M12: 6,651,271 km (0.094 R)
• M13: 6,794,137 km (0.084 R)
• M14: 7,462,690 km (0.12 R)
• M15: 7,971,921 km (0.118 R)
• M16: 10,480,827 km (0.096 R)
• M17: 12,853,599 km (0.114 R)
• M18: 14,580,108 km (0.079 R)
• M19: 16,585,617 km (0.086 R)
• M20: 18,066,187 km (0.105 R)
• M21: 20,298,785 km (0.085 R)
• M22: 22,547,541 km (0.09 R)
• M23: 26,895,154 km (0.061 R)
• M24: 27,258,078 km (0.079 R)
• M25: 31,267,451 km (0.114 R)
• M26: 33,307,667 km (0.084 R)
• M27: 34,787,489 km (0.057 R)
• M28: 35,761,670 km (0.064 R)
• M29: 37,312,851 km (0.077 R)

Asteroid Belt

Center: 7.55 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 9.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.7

Radius: 4.3

Gravity: 18.8 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 8.52 AU - 9.9 AU

Year: 19647 Days

Day: 23.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 59,979,573 km

• M1: 53,406 km (0.039 R)
• M2: 224,995 km (0.103 R)
• M3: 385,813 km (0.12 R)
• M4: 577,298 km (0.083 R)
• M5: 861,385 km (0.088 R)
• M6: 1,156,092 km (0.063 R)
• M7: 1,530,237 km (0.065 R)
• M8: 2,148,824 km (0.11 R)
• M9: 2,326,696 km (0.112 R)
• M10: 3,290,106 km (0.079 R)
• M11: 5,698,332 km (0.043 R)
• M12: 6,764,068 km (0.08 R)
• M13: 8,286,675 km (0.116 R)
• M14: 9,127,415 km (0.104 R)
• M15: 9,385,172 km (0.032 R)
• M16: 11,209,817 km (0.04 R)
• M17: 14,060,853 km (0.103 R)
• M18: 24,337,030 km (0.113 R)
• M19: 25,741,455 km (0.115 R)
• M20: 29,487,386 km (0.12 R)
• M21: 32,853,637 km (0.07 R)
• M22: 33,337,137 km (0.058 R)
• M23: 36,081,810 km (0.095 R)
• M24: 37,640,470 km (0.073 R)
• M25: 42,442,113 km (0.057 R)
• M26: 49,668,438 km (0.096 R)
• M27: 55,425,861 km (0.108 R)
• M28: 56,974,947 km (0.087 R)
• M29: 57,323,211 km (0.111 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 241 - 19,803 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit