🌌 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: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.5

Radius: 10.2

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.53 AU - 0.87 AU

Year: 404 Days

Day: 13.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 73,448,934 km

• M1: 126,859 km (0.12 R)
• M2: 483,351 km (0.117 R)
• M3: 818,450 km (0.117 R)
• M4: 1,258,567 km (0.119 R)
• M5: 1,806,544 km (0.029 R)
• M6: 2,373,969 km (0.086 R)
• M7: 3,246,573 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.1

Radius: 12

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.1 AU - 1.46 AU

Year: 1000 Days

Day: 7.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,448,934 km

• M1: 149,299 km (0.118 R)
• M2: 524,490 km (0.111 R)
• M3: 1,188,405 km (0.079 R)
• M4: 1,586,934 km (0.059 R)
• M5: 1,984,565 km (0.072 R)
• M6: 2,842,509 km (0.047 R)
• M7: 3,408,139 km (0.086 R)
• M8: 3,820,730 km (0.111 R)
• M9: 4,284,034 km (0.119 R)
• M10: 4,915,786 km (0.114 R)
• M11: 5,797,516 km (0.103 R)
• M12: 8,380,473 km (0.08 R)
• M13: 9,458,924 km (0.101 R)
• M14: 10,001,216 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.1

Radius: 11.4

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.3 AU - 1.66 AU

Year: 1243 Days

Day: 12 Hours

Environment

Temp: -195 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,448,934 km

• M1: 141,819 km (0.037 R)
• M2: 613,202 km (0.086 R)
• M3: 1,491,940 km (0.087 R)
• M4: 1,850,526 km (0.075 R)
• M5: 2,580,264 km (0.088 R)
• M6: 3,092,038 km (0.042 R)
• M7: 3,533,203 km (0.077 R)
• M8: 4,641,124 km (0.099 R)
• M9: 5,475,132 km (0.085 R)
• M10: 6,104,491 km (0.113 R)
• M11: 6,633,918 km (0.111 R)
• M12: 7,668,836 km (0.093 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 106

Radius: 7.8

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 6.46 AU - 6.66 AU

Year: 11598 Days

Day: 16.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,448,934 km

• M1: 97,687 km (0.112 R)
• M2: 355,445 km (0.081 R)
• M3: 831,166 km (0.055 R)
• M4: 1,352,814 km (0.076 R)
• M5: 1,750,594 km (0.039 R)
• M6: 2,005,659 km (0.12 R)
• M7: 2,332,081 km (0.1 R)
• M8: 3,721,247 km (0.077 R)
• M9: 4,335,496 km (0.091 R)
• M10: 6,242,420 km (0.117 R)
• M11: 8,272,912 km (0.118 R)
• M12: 9,396,841 km (0.112 R)
• M13: 10,358,306 km (0.113 R)
• M14: 11,755,700 km (0.1 R)
• M15: 12,280,489 km (0.103 R)
• M16: 14,809,890 km (0.104 R)
• M17: 17,978,074 km (0.098 R)
• M18: 18,292,528 km (0.09 R)
• M19: 25,536,805 km (0.083 R)
• M20: 27,151,565 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 86.5

Radius: 5.2

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 9.02 AU - 9.98 AU

Year: 20211 Days

Day: 19.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,448,934 km

• M1: 64,626 km (0.079 R)
• M2: 446,101 km (0.088 R)
• M3: 1,370,017 km (0.076 R)
• M4: 1,915,601 km (0.097 R)
• M5: 2,153,910 km (0.11 R)
• M6: 3,158,759 km (0.093 R)
• M7: 4,203,700 km (0.048 R)
• M8: 5,713,741 km (0.062 R)
• M9: 5,908,518 km (0.031 R)
• M10: 8,563,132 km (0.119 R)
• M11: 8,775,561 km (0.043 R)
• M12: 9,035,113 km (0.063 R)
• M13: 12,454,023 km (0.079 R)
• M14: 12,726,889 km (0.118 R)
• M15: 12,892,494 km (0.067 R)
• M16: 15,427,729 km (0.091 R)
• M17: 15,679,203 km (0.103 R)
• M18: 17,044,733 km (0.08 R)
• M19: 18,206,809 km (0.062 R)
• M20: 18,487,604 km (0.114 R)
• M21: 23,384,541 km (0.117 R)
• M22: 26,128,764 km (0.082 R)
• M23: 29,080,180 km (0.107 R)
• M24: 31,636,060 km (0.093 R)
• M25: 36,185,182 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 531.5

Radius: 6.9

Gravity: 11.16 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 9.31 AU - 10.51 AU

Year: 21534 Days

Day: 18.9 Hours

Environment

Temp: -241 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 73,448,934 km

• M1: 85,869 km (0.113 R)
• M2: 459,116 km (0.03 R)
• M3: 784,790 km (0.097 R)
• M4: 1,875,060 km (0.114 R)
• M5: 2,943,936 km (0.036 R)
• M6: 3,368,046 km (0.064 R)
• M7: 3,741,892 km (0.115 R)
• M8: 4,048,118 km (0.081 R)
• M9: 5,717,631 km (0.105 R)
• M10: 6,463,825 km (0.081 R)
• M11: 9,146,563 km (0.074 R)
• M12: 16,574,546 km (0.033 R)
• M13: 17,910,904 km (0.118 R)
• M14: 18,430,009 km (0.11 R)
• M15: 19,680,348 km (0.028 R)
• M16: 26,901,886 km (0.037 R)
• M17: 28,860,571 km (0.09 R)
• M18: 32,673,372 km (0.09 R)
• M19: 36,119,508 km (0.118 R)
• M20: 38,214,028 km (0.104 R)
• M21: 40,684,039 km (0.082 R)
• M22: 41,130,738 km (0.093 R)
• M23: 54,463,798 km (0.067 R)
• M24: 61,997,546 km (0.075 R)
• M25: 63,383,571 km (0.113 R)
• M26: 68,923,479 km (0.063 R)
• M27: 70,196,856 km (0.101 R)
• M28: 71,054,501 km (0.11 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 420 - 16,168 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit