🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.59 AU - 0.61 AU

Year: 300 Days

Day: 27.9 Hours

Environment

Temp: -126 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.1

Radius: 12.4

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.97 AU - 1.15 AU

Year: 705 Days

Day: 13.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,620,840 km

• M1: 154,235 km (0.092 R)
• M2: 566,078 km (0.056 R)
• M3: 1,130,511 km (0.068 R)
• M4: 1,572,124 km (0.097 R)
• M5: 2,052,483 km (0.086 R)
• M6: 2,681,841 km (0.069 R)
• M7: 3,449,278 km (0.077 R)
• M8: 4,548,822 km (0.036 R)
• M9: 5,220,966 km (0.059 R)
• M10: 5,641,635 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.7

Radius: 10.2

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.39 AU - 4.81 AU

Year: 5360 Days

Day: 10.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,620,840 km

• M1: 127,158 km (0.114 R)
• M2: 499,657 km (0.113 R)
• M3: 834,756 km (0.051 R)
• M4: 1,243,458 km (0.056 R)
• M5: 1,636,302 km (0.106 R)
• M6: 2,151,965 km (0.06 R)
• M7: 2,554,084 km (0.054 R)
• M8: 3,109,691 km (0.108 R)
• M9: 3,529,911 km (0.102 R)
• M10: 4,351,802 km (0.107 R)
• M11: 5,121,782 km (0.07 R)
• M12: 7,619,618 km (0.077 R)
• M13: 8,879,232 km (0.084 R)
• M14: 9,465,057 km (0.072 R)
• M15: 12,560,536 km (0.103 R)
• M16: 13,158,330 km (0.075 R)
• M17: 15,583,610 km (0.101 R)
• M18: 17,432,191 km (0.092 R)
• M19: 19,180,990 km (0.063 R)
• M20: 20,788,569 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.3

Radius: 14.6

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.19 AU - 4.63 AU

Year: 5980 Days

Day: 5.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,620,840 km

• M1: 181,612 km (0.091 R)
• M2: 789,727 km (0.089 R)
• M3: 1,257,071 km (0.038 R)
• M4: 2,347,340 km (0.089 R)
• M5: 3,539,037 km (0.098 R)
• M6: 4,024,632 km (0.086 R)
• M7: 5,305,488 km (0.077 R)
• M8: 5,788,390 km (0.105 R)
• M9: 6,948,522 km (0.107 R)
• M10: 9,077,898 km (0.094 R)
• M11: 10,831,634 km (0.105 R)
• M12: 11,915,470 km (0.067 R)
• M13: 14,127,125 km (0.108 R)
• M14: 17,180,119 km (0.118 R)
• M15: 24,394,775 km (0.088 R)
• M16: 25,738,164 km (0.109 R)
• M17: 26,341,043 km (0.052 R)
• M18: 34,748,444 km (0.096 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 239.4

Radius: 7.5

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 6.03 AU - 6.95 AU

Year: 10675 Days

Day: 19.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 32,620,840 km

• M1: 93,648 km (0.094 R)
• M2: 423,661 km (0.096 R)
• M3: 690,394 km (0.092 R)
• M4: 942,317 km (0.047 R)
• M5: 1,323,193 km (0.119 R)
• M6: 1,889,421 km (0.08 R)
• M7: 2,147,777 km (0.114 R)
• M8: 3,151,130 km (0.097 R)
• M9: 4,155,829 km (0.113 R)
• M10: 5,540,058 km (0.107 R)
• M11: 6,303,456 km (0.112 R)
• M12: 6,885,242 km (0.08 R)
• M13: 7,390,883 km (0.109 R)
• M14: 9,842,194 km (0.038 R)
• M15: 10,530,643 km (0.116 R)
• M16: 10,862,750 km (0.106 R)
• M17: 11,648,139 km (0.073 R)
• M18: 14,404,330 km (0.046 R)
• M19: 16,593,097 km (0.116 R)
• M20: 16,978,311 km (0.108 R)
• M21: 18,034,622 km (0.071 R)
• M22: 20,792,159 km (0.057 R)
• M23: 21,390,700 km (0.107 R)
• M24: 21,770,529 km (0.117 R)
• M25: 22,309,830 km (0.058 R)
• M26: 22,543,801 km (0.046 R)
• M27: 25,992,032 km (0.068 R)
• M28: 26,950,056 km (0.107 R)
• M29: 30,345,479 km (0.104 R)
• M30: 33,503,341 km (0.093 R)
• M31: 33,912,790 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 131.3

Radius: 4.1

Gravity: 7.81 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.41 AU - 8.31 AU

Year: 11601 Days

Day: 21 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,620,840 km

• M1: 51,013 km (0.098 R)
• M2: 180,565 km (0.072 R)
• M3: 317,297 km (0.077 R)
• M4: 712,535 km (0.11 R)
• M5: 841,039 km (0.116 R)
• M6: 3,054,938 km (0.096 R)
• M7: 5,343,636 km (0.113 R)
• M8: 5,545,294 km (0.101 R)
• M9: 6,025,353 km (0.112 R)
• M10: 6,796,830 km (0.065 R)
• M11: 8,689,991 km (0.083 R)
• M12: 10,014,829 km (0.093 R)
• M13: 10,862,002 km (0.048 R)
• M14: 13,265,591 km (0.12 R)
• M15: 13,582,290 km (0.095 R)
• M16: 16,240,046 km (0.055 R)
• M17: 16,970,233 km (0.117 R)
• M18: 25,677,128 km (0.06 R)
• M19: 28,198,750 km (0.116 R)
• M20: 29,698,468 km (0.114 R)
• M21: 30,240,162 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 53.7

Radius: 7.4

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 9.52 AU - 10.24 AU

Year: 20052 Days

Day: 15.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,620,840 km

• M1: 121,773 km (0.046 R)
• M2: 650,601 km (0.104 R)
• M3: 1,807,441 km (0.079 R)
• M4: 3,404,997 km (0.063 R)
• M5: 14,655,056 km (0.074 R)
• M6: 15,410,226 km (0.113 R)
• M7: 15,887,593 km (0.054 R)
• M8: 17,124,319 km (0.057 R)
• M9: 18,557,466 km (0.087 R)
• M10: 19,097,814 km (0.112 R)
• M11: 23,490,755 km (0.079 R)
• M12: 30,614,307 km (0.067 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 16,303 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit