🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.63 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.2

Radius: 14.1

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.03 AU - 1.49 AU

Year: 943 Days

Day: 7.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 84,356,192 km

• M1: 175,329 km (0.108 R)
• M2: 670,647 km (0.1 R)
• M3: 1,432,549 km (0.086 R)
• M4: 2,170,366 km (0.084 R)
• M5: 3,353,386 km (0.104 R)
• M6: 4,665,958 km (0.082 R)
• M7: 5,422,624 km (0.094 R)
• M8: 6,602,951 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.4

Radius: 12.8

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.25 AU - 1.59 AU

Year: 1128 Days

Day: 7.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 84,356,192 km

• M1: 159,322 km (0.114 R)
• M2: 863,479 km (0.101 R)
• M3: 1,275,322 km (0.08 R)
• M4: 2,052,034 km (0.051 R)
• M5: 2,500,229 km (0.031 R)
• M6: 2,932,567 km (0.118 R)
• M7: 3,460,199 km (0.105 R)
• M8: 4,433,482 km (0.106 R)
• M9: 4,897,685 km (0.113 R)
• M10: 6,821,214 km (0.096 R)
• M11: 8,155,029 km (0.069 R)
• M12: 9,205,505 km (0.091 R)
• M13: 9,686,761 km (0.078 R)
• M14: 10,831,484 km (0.085 R)
• M15: 11,608,795 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.1

Radius: 13.7

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.54 AU - 1.86 AU

Year: 1478 Days

Day: 13.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,356,192 km

• M1: 170,542 km (0.049 R)
• M2: 677,379 km (0.088 R)
• M3: 1,158,935 km (0.081 R)
• M4: 2,426,178 km (0.084 R)
• M5: 3,326,458 km (0.062 R)
• M6: 3,904,205 km (0.053 R)
• M7: 4,829,468 km (0.095 R)
• M8: 5,447,756 km (0.116 R)
• M9: 7,290,503 km (0.105 R)
• M10: 7,836,684 km (0.076 R)
• M11: 8,721,406 km (0.072 R)
• M12: 9,610,466 km (0.091 R)
• M13: 10,657,352 km (0.11 R)
• M14: 11,743,732 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.7

Radius: 9.7

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.67 AU - 2.33 AU

Year: 1886 Days

Day: 10.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,356,192 km

• M1: 120,725 km (0.093 R)
• M2: 458,817 km (0.033 R)
• M3: 779,704 km (0.107 R)
• M4: 1,357,900 km (0.115 R)
• M5: 1,753,885 km (0.115 R)
• M6: 2,178,145 km (0.108 R)
• M7: 2,547,203 km (0.055 R)
• M8: 3,125,100 km (0.089 R)
• M9: 3,931,432 km (0.039 R)
• M10: 4,248,280 km (0.105 R)
• M11: 4,912,644 km (0.117 R)
• M12: 6,575,874 km (0.118 R)
• M13: 6,997,291 km (0.087 R)
• M14: 8,709,438 km (0.095 R)
• M15: 9,480,017 km (0.068 R)
• M16: 10,052,827 km (0.11 R)
• M17: 12,182,503 km (0.109 R)
• M18: 13,394,545 km (0.075 R)
• M19: 14,159,438 km (0.111 R)
• M20: 14,908,176 km (0.119 R)
• M21: 15,360,859 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.9

Radius: 8.4

Gravity: 12.91 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.84 AU - 6.04 AU

Year: 8461 Days

Day: 13.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,356,192 km

• M1: 155,881 km (0.088 R)
• M2: 437,424 km (0.075 R)
• M3: 1,182,122 km (0.108 R)
• M4: 1,492,538 km (0.094 R)
• M5: 3,923,952 km (0.069 R)
• M6: 4,896,338 km (0.078 R)
• M7: 5,742,015 km (0.095 R)
• M8: 6,568,394 km (0.111 R)
• M9: 8,104,315 km (0.061 R)
• M10: 9,915,496 km (0.075 R)
• M11: 12,847,166 km (0.084 R)
• M12: 21,667,606 km (0.038 R)
• M13: 27,299,218 km (0.113 R)
• M14: 40,826,306 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 102.3

Radius: 7.4

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 7.92 AU - 9.32 AU

Year: 16877 Days

Day: 20.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,356,192 km

• M1: 92,003 km (0.068 R)
• M2: 384,018 km (0.107 R)
• M3: 959,970 km (0.091 R)
• M4: 1,194,539 km (0.098 R)
• M5: 1,555,668 km (0.076 R)
• M6: 1,898,547 km (0.055 R)
• M7: 2,756,042 km (0.041 R)
• M8: 3,501,338 km (0.114 R)
• M9: 3,945,494 km (0.052 R)
• M10: 5,118,641 km (0.116 R)
• M11: 6,474,446 km (0.098 R)
• M12: 10,012,286 km (0.12 R)
• M13: 11,649,186 km (0.079 R)
• M14: 17,752,779 km (0.059 R)
• M15: 19,844,906 km (0.119 R)
• M16: 22,487,103 km (0.101 R)
• M17: 23,444,530 km (0.11 R)
• M18: 30,920,384 km (0.078 R)
• M19: 31,409,719 km (0.078 R)
• M20: 31,804,807 km (0.12 R)
• M21: 32,203,335 km (0.045 R)
• M22: 35,405,328 km (0.068 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 857.5

Radius: 6.6

Gravity: 19.69 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 8.98 AU - 10.88 AU

Year: 20867 Days

Day: 21.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 84,356,192 km

• M1: 86,767 km (0.097 R)
• M2: 328,517 km (0.104 R)
• M3: 1,094,159 km (0.088 R)
• M4: 1,367,474 km (0.054 R)
• M5: 2,095,268 km (0.11 R)
• M6: 2,334,774 km (0.053 R)
• M7: 3,083,212 km (0.118 R)
• M8: 3,453,168 km (0.071 R)
• M9: 4,385,462 km (0.114 R)
• M10: 4,706,349 km (0.101 R)
• M11: 7,309,950 km (0.102 R)
• M12: 9,171,097 km (0.05 R)
• M13: 9,756,025 km (0.105 R)
• M14: 12,487,084 km (0.116 R)
• M15: 17,655,541 km (0.063 R)
• M16: 18,194,392 km (0.052 R)
• M17: 18,467,857 km (0.032 R)
• M18: 19,399,403 km (0.066 R)
• M19: 21,864,776 km (0.086 R)
• M20: 23,012,940 km (0.094 R)
• M21: 23,332,780 km (0.098 R)
• M22: 24,642,509 km (0.056 R)
• M23: 24,865,410 km (0.074 R)
• M24: 27,288,148 km (0.093 R)
• M25: 29,486,488 km (0.111 R)
• M26: 29,863,924 km (0.082 R)
• M27: 30,757,322 km (0.075 R)
• M28: 35,635,260 km (0.091 R)
• M29: 42,746,844 km (0.114 R)
• M30: 78,915,570 km (0.08 R)
• M31: 84,356,145 km (0.092 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: 286 - 17,179 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit