🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967.9

Radius: 14.2

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.43 AU - 0.67 AU

Year: 287 Days

Day: 6.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,515,629 km

• M1: 176,675 km (0.046 R)
• M2: 622,626 km (0.098 R)
• M3: 1,140,085 km (0.077 R)
• M4: 1,837,211 km (0.087 R)
• M5: 2,310,988 km (0.098 R)
• M6: 2,916,710 km (0.107 R)
• M7: 3,400,360 km (0.079 R)
• M8: 3,950,281 km (0.115 R)
• M9: 4,398,028 km (0.061 R)
• M10: 4,894,244 km (0.058 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.9

Radius: 11.8

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.68 AU - 0.78 AU

Year: 438 Days

Day: 13.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,515,629 km

• M1: 146,756 km (0.1 R)
• M2: 536,009 km (0.1 R)
• M3: 1,053,917 km (0.106 R)
• M4: 1,546,094 km (0.1 R)
• M5: 1,982,471 km (0.118 R)
• M6: 2,581,012 km (0.076 R)
• M7: 3,040,876 km (0.114 R)
• M8: 3,568,208 km (0.099 R)
• M9: 4,030,466 km (0.053 R)
• M10: 5,108,917 km (0.102 R)
• M11: 5,576,859 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.3

Radius: 15

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.87 AU - 1.29 AU

Year: 789 Days

Day: 8 Hours

Environment

Temp: -178 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,515,629 km

• M1: 186,698 km (0.109 R)
• M2: 804,537 km (0.116 R)
• M3: 1,304,493 km (0.111 R)
• M4: 1,983,069 km (0.065 R)
• M5: 2,773,694 km (0.071 R)
• M6: 3,512,558 km (0.102 R)
• M7: 4,020,144 km (0.119 R)
• M8: 4,796,557 km (0.107 R)
• M9: 5,349,919 km (0.109 R)
• M10: 6,046,148 km (0.047 R)
• M11: 6,671,915 km (0.1 R)
• M12: 7,691,874 km (0.109 R)
• M13: 8,606,366 km (0.043 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393

Radius: 11.5

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.04 AU - 4.78 AU

Year: 5435 Days

Day: 5.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 46,515,629 km

• M1: 144,212 km (0.028 R)
• M2: 580,440 km (0.116 R)
• M3: 975,528 km (0.048 R)
• M4: 1,602,044 km (0.07 R)
• M5: 2,499,332 km (0.112 R)
• M6: 4,004,286 km (0.102 R)
• M7: 5,479,022 km (0.111 R)
• M8: 6,014,134 km (0.118 R)
• M9: 6,961,986 km (0.061 R)
• M10: 7,354,680 km (0.066 R)
• M11: 9,545,391 km (0.12 R)
• M12: 10,363,841 km (0.101 R)
• M13: 11,542,074 km (0.065 R)
• M14: 12,234,114 km (0.112 R)
• M15: 13,348,768 km (0.105 R)
• M16: 14,372,017 km (0.114 R)
• M17: 15,064,655 km (0.109 R)
• M18: 15,779,583 km (0.098 R)
• M19: 16,632,291 km (0.114 R)
• M20: 17,158,427 km (0.087 R)
• M21: 17,575,356 km (0.116 R)
• M22: 17,938,131 km (0.103 R)
• M23: 18,678,641 km (0.118 R)
• M24: 19,183,533 km (0.074 R)
• M25: 20,485,783 km (0.104 R)
• M26: 24,220,793 km (0.089 R)
• M27: 24,595,087 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275

Radius: 13.8

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 4.14 AU - 4.64 AU

Year: 6466 Days

Day: 14.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,515,629 km

• M1: 172,636 km (0.082 R)
• M2: 773,271 km (0.08 R)
• M3: 1,827,637 km (0.092 R)
• M4: 2,916,261 km (0.096 R)
• M5: 5,511,784 km (0.072 R)
• M6: 8,467,539 km (0.089 R)
• M7: 10,474,394 km (0.11 R)
• M8: 13,874,455 km (0.086 R)
• M9: 17,768,936 km (0.072 R)
• M10: 18,627,179 km (0.097 R)
• M11: 20,294,298 km (0.056 R)
• M12: 24,743,488 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 443.7

Radius: 4.4

Gravity: 22.92 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 5.68 AU - 6 AU

Year: 9920 Days

Day: 18.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 46,515,629 km

• M1: 54,753 km (0.097 R)
• M2: 199,414 km (0.069 R)
• M3: 603,179 km (0.087 R)
• M4: 762,201 km (0.097 R)
• M5: 1,018,462 km (0.04 R)
• M6: 1,178,233 km (0.075 R)
• M7: 1,508,545 km (0.117 R)
• M8: 3,063,615 km (0.077 R)
• M9: 3,239,691 km (0.081 R)
• M10: 3,859,176 km (0.038 R)
• M11: 4,012,664 km (0.082 R)
• M12: 5,392,106 km (0.09 R)
• M13: 6,050,336 km (0.033 R)
• M14: 7,135,818 km (0.095 R)
• M15: 7,724,486 km (0.102 R)
• M16: 7,886,800 km (0.069 R)
• M17: 9,314,113 km (0.118 R)
• M18: 9,451,893 km (0.096 R)
• M19: 10,504,014 km (0.105 R)
• M20: 10,905,236 km (0.105 R)
• M21: 12,007,024 km (0.116 R)
• M22: 12,668,845 km (0.08 R)
• M23: 14,675,701 km (0.085 R)
• M24: 16,884,812 km (0.032 R)
• M25: 17,158,427 km (0.087 R)
• M26: 17,926,313 km (0.104 R)
• M27: 18,211,147 km (0.12 R)
• M28: 18,354,612 km (0.117 R)
• M29: 21,227,190 km (0.1 R)
• M30: 23,103,895 km (0.097 R)
• M31: 24,911,486 km (0.12 R)
• M32: 26,442,172 km (0.068 R)
• M33: 32,239,688 km (0.079 R)
• M34: 32,979,150 km (0.117 R)
• M35: 34,491,883 km (0.103 R)
• M36: 36,390,131 km (0.051 R)
• M37: 36,732,261 km (0.055 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 413.8

Radius: 4.8

Gravity: 17.96 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 5.49 AU - 7.99 AU

Year: 12300 Days

Day: 22.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 103.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 46,515,629 km

• M1: 60,288 km (0.085 R)
• M2: 253,568 km (0.104 R)
• M3: 483,800 km (0.078 R)
• M4: 742,903 km (0.101 R)
• M5: 914,492 km (0.07 R)
• M6: 1,135,149 km (0.102 R)
• M7: 1,364,781 km (0.094 R)
• M8: 2,318,767 km (0.092 R)
• M9: 2,509,504 km (0.117 R)
• M10: 3,625,953 km (0.035 R)
• M11: 4,264,886 km (0.096 R)
• M12: 4,944,658 km (0.094 R)
• M13: 6,042,707 km (0.064 R)
• M14: 7,456,407 km (0.087 R)
• M15: 8,937,575 km (0.028 R)
• M16: 10,398,249 km (0.069 R)
• M17: 11,842,616 km (0.085 R)
• M18: 12,641,768 km (0.098 R)
• M19: 16,268,768 km (0.1 R)
• M20: 16,686,745 km (0.116 R)
• M21: 18,505,705 km (0.084 R)
• M22: 19,424,087 km (0.1 R)
• M23: 19,815,435 km (0.068 R)
• M24: 20,452,722 km (0.068 R)
• M25: 26,622,587 km (0.087 R)
• M26: 27,202,877 km (0.117 R)
• M27: 29,918,527 km (0.08 R)
• M28: 30,126,618 km (0.1 R)
• M29: 32,589,447 km (0.106 R)
• M30: 33,813,308 km (0.07 R)
• M31: 38,645,319 km (0.026 R)
• M32: 39,264,205 km (0.102 R)
• M33: 41,032,602 km (0.109 R)
• M34: 42,721,562 km (0.117 R)
• M35: 43,117,846 km (0.065 R)
• M36: 44,727,370 km (0.116 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: 232 - 15,983 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit