🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.7

Radius: 10.3

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.53 AU - 0.67 AU

Year: 315 Days

Day: 12.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,265,730 km

• M1: 128,355 km (0.102 R)
• M2: 465,997 km (0.103 R)
• M3: 810,372 km (0.054 R)
• M4: 1,133,353 km (0.05 R)
• M5: 1,557,912 km (0.035 R)
• M6: 1,978,881 km (0.094 R)
• M7: 2,360,954 km (0.12 R)
• M8: 2,734,350 km (0.119 R)
• M9: 3,264,974 km (0.114 R)
• M10: 3,719,003 km (0.104 R)
• M11: 4,201,905 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.2

Radius: 13.2

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.98 AU - 1.34 AU

Year: 847 Days

Day: 7.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,265,730 km

• M1: 164,109 km (0.105 R)
• M2: 743,202 km (0.101 R)
• M3: 1,251,087 km (0.114 R)
• M4: 1,917,695 km (0.108 R)
• M5: 2,431,713 km (0.116 R)
• M6: 3,742,490 km (0.075 R)
• M7: 4,206,692 km (0.102 R)
• M8: 4,622,873 km (0.1 R)
• M9: 6,249,750 km (0.028 R)
• M10: 6,884,195 km (0.101 R)
• M11: 8,699,266 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.6

Radius: 13

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.27 AU - 1.31 AU

Year: 994 Days

Day: 13.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,265,730 km

• M1: 162,164 km (0.046 R)
• M2: 606,171 km (0.052 R)
• M3: 1,026,840 km (0.088 R)
• M4: 1,467,406 km (0.056 R)
• M5: 1,968,708 km (0.076 R)
• M6: 2,788,056 km (0.096 R)
• M7: 3,687,288 km (0.086 R)
• M8: 4,188,740 km (0.099 R)
• M9: 4,735,670 km (0.087 R)
• M10: 6,646,035 km (0.079 R)
• M11: 7,248,615 km (0.083 R)
• M12: 8,915,435 km (0.078 R)
• M13: 9,505,150 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.6

Radius: 13.2

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.23 AU - 2.89 AU

Year: 2778 Days

Day: 12.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,265,730 km

• M1: 164,109 km (0.077 R)
• M2: 608,265 km (0.1 R)
• M3: 1,069,176 km (0.05 R)
• M4: 1,772,585 km (0.104 R)
• M5: 2,373,520 km (0.071 R)
• M6: 2,911,324 km (0.118 R)
• M7: 3,511,660 km (0.061 R)
• M8: 4,276,854 km (0.083 R)
• M9: 5,246,697 km (0.114 R)
• M10: 5,875,008 km (0.046 R)
• M11: 7,252,804 km (0.093 R)
• M12: 9,617,348 km (0.095 R)
• M13: 10,444,475 km (0.109 R)
• M14: 11,400,106 km (0.119 R)
• M15: 11,941,650 km (0.108 R)
• M16: 12,544,081 km (0.085 R)
• M17: 14,139,093 km (0.076 R)
• M18: 15,459,145 km (0.116 R)
• M19: 20,212,617 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.8

Radius: 14.7

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.3 AU - 3.08 AU

Year: 2992 Days

Day: 5.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,265,730 km

• M1: 183,108 km (0.049 R)
• M2: 665,262 km (0.083 R)
• M3: 1,246,898 km (0.101 R)
• M4: 2,040,216 km (0.056 R)
• M5: 2,729,114 km (0.053 R)
• M6: 3,948,785 km (0.058 R)
• M7: 4,896,488 km (0.106 R)
• M8: 6,825,852 km (0.056 R)
• M9: 8,440,910 km (0.068 R)
• M10: 9,187,404 km (0.099 R)
• M11: 10,700,885 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 146.3

Radius: 7.3

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 6.86 AU - 10.04 AU

Year: 16660 Days

Day: 22.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,265,730 km

• M1: 99,034 km (0.118 R)
• M2: 536,308 km (0.063 R)
• M3: 1,001,408 km (0.106 R)
• M4: 1,798,615 km (0.061 R)
• M5: 2,401,345 km (0.119 R)
• M6: 2,661,945 km (0.081 R)
• M7: 3,262,730 km (0.071 R)
• M8: 3,727,381 km (0.109 R)
• M9: 4,589,513 km (0.047 R)
• M10: 4,963,508 km (0.107 R)
• M11: 6,004,410 km (0.06 R)
• M12: 7,070,893 km (0.079 R)
• M13: 7,491,861 km (0.111 R)
• M14: 8,812,063 km (0.092 R)
• M15: 9,164,964 km (0.032 R)
• M16: 11,588,449 km (0.076 R)
• M17: 14,048,736 km (0.118 R)
• M18: 17,039,646 km (0.041 R)
• M19: 20,892,689 km (0.059 R)
• M20: 25,466,494 km (0.101 R)
• M21: 25,733,527 km (0.103 R)
• M22: 29,770,575 km (0.087 R)
• M23: 32,197,800 km (0.082 R)
• M24: 33,141,015 km (0.117 R)
• M25: 33,994,770 km (0.098 R)
• M26: 35,082,496 km (0.111 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: 306 - 10,386 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit