🌌 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: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.7

Radius: 13.3

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.67 AU - 0.95 AU

Year: 503 Days

Day: 7.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,395,696 km

• M1: 166,203 km (0.073 R)
• M2: 583,432 km (0.059 R)
• M3: 1,111,213 km (0.1 R)
• M4: 1,543,102 km (0.052 R)
• M5: 2,057,120 km (0.079 R)
• M6: 2,685,282 km (0.059 R)
• M7: 3,288,909 km (0.115 R)
• M8: 4,008,176 km (0.081 R)
• M9: 4,934,785 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.6

Radius: 8.5

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.74 AU - 1.04 AU

Year: 580 Days

Day: 12.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,395,696 km

• M1: 105,766 km (0.055 R)
• M2: 375,640 km (0.097 R)
• M3: 703,409 km (0.088 R)
• M4: 1,243,757 km (0.109 R)
• M5: 1,973,495 km (0.047 R)
• M6: 2,509,055 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.1

Radius: 9.8

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.83 AU - 0.95 AU

Year: 580 Days

Day: 11.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,395,696 km

• M1: 122,072 km (0.06 R)
• M2: 434,432 km (0.083 R)
• M3: 848,519 km (0.036 R)
• M4: 1,299,108 km (0.091 R)
• M5: 1,747,303 km (0.104 R)
• M6: 2,149,422 km (0.049 R)
• M7: 2,545,408 km (0.118 R)
• M8: 3,380,014 km (0.059 R)
• M9: 3,716,460 km (0.09 R)
• M10: 4,485,243 km (0.113 R)
• M11: 4,952,886 km (0.084 R)
• M12: 5,324,787 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.5

Radius: 8.6

Gravity: 11.59 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.09 AU - 1.51 AU

Year: 1023 Days

Day: 10.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 36,395,696 km

• M1: 106,962 km (0.084 R)
• M2: 391,348 km (0.116 R)
• M3: 996,920 km (0.072 R)
• M4: 1,690,007 km (0.11 R)
• M5: 1,969,306 km (0.054 R)
• M6: 2,464,775 km (0.099 R)
• M7: 2,973,108 km (0.113 R)
• M8: 3,518,991 km (0.044 R)
• M9: 4,130,248 km (0.025 R)
• M10: 4,533,414 km (0.039 R)
• M11: 4,886,166 km (0.09 R)
• M12: 5,710,151 km (0.119 R)
• M13: 6,121,994 km (0.1 R)
• M14: 6,647,082 km (0.036 R)
• M15: 7,177,107 km (0.067 R)
• M16: 8,542,038 km (0.058 R)
• M17: 8,966,148 km (0.087 R)
• M18: 10,134,657 km (0.119 R)
• M19: 11,000,979 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.2

Radius: 14.1

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.25 AU - 1.39 AU

Year: 1047 Days

Day: 10.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,395,696 km

• M1: 175,628 km (0.064 R)
• M2: 709,991 km (0.09 R)
• M3: 1,548,488 km (0.058 R)
• M4: 2,279,124 km (0.059 R)
• M5: 2,779,080 km (0.112 R)
• M6: 3,675,470 km (0.116 R)
• M7: 4,435,427 km (0.098 R)
• M8: 4,986,695 km (0.106 R)
• M9: 5,448,953 km (0.069 R)
• M10: 6,503,468 km (0.105 R)
• M11: 6,943,884 km (0.037 R)
• M12: 7,909,389 km (0.083 R)
• M13: 8,592,902 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.1

Radius: 13.9

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.21 AU - 3.41 AU

Year: 4157 Days

Day: 10.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,395,696 km

• M1: 172,935 km (0.119 R)
• M2: 777,460 km (0.089 R)
• M3: 1,275,771 km (0.093 R)
• M4: 1,750,744 km (0.104 R)
• M5: 2,546,156 km (0.091 R)
• M6: 3,674,273 km (0.073 R)
• M7: 4,564,381 km (0.107 R)
• M8: 5,138,687 km (0.078 R)
• M9: 5,960,129 km (0.077 R)
• M10: 6,463,675 km (0.076 R)
• M11: 12,650,744 km (0.079 R)
• M12: 16,961,706 km (0.116 R)
• M13: 18,780,666 km (0.081 R)
• M14: 23,018,624 km (0.118 R)
• M15: 25,092,051 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 82.7

Radius: 3.8

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 7.4 AU - 10.86 AU

Year: 19042 Days

Day: 21.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,395,696 km

• M1: 50,564 km (0.107 R)
• M2: 423,811 km (0.043 R)
• M3: 549,772 km (0.034 R)
• M4: 678,726 km (0.107 R)
• M5: 1,501,215 km (0.117 R)
• M6: 2,426,328 km (0.084 R)
• M7: 2,798,378 km (0.083 R)
• M8: 4,376,187 km (0.086 R)
• M9: 4,590,859 km (0.079 R)
• M10: 6,957,498 km (0.032 R)
• M11: 7,212,861 km (0.116 R)
• M12: 7,703,842 km (0.104 R)
• M13: 8,878,933 km (0.102 R)
• M14: 12,196,864 km (0.115 R)
• M15: 12,408,246 km (0.077 R)
• M16: 13,501,507 km (0.091 R)
• M17: 14,245,607 km (0.091 R)
• M18: 18,173,449 km (0.1 R)
• M19: 21,437,674 km (0.113 R)
• M20: 34,362,930 km (0.051 R)
• M21: 35,745,364 km (0.048 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: 453 - 10,798 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit