🌌 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: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.59 AU - 0.61 AU

Year: 212 Days

Day: 38.8 Hours

Environment

Temp: -20 °C

Axial Tilt: 3.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 90,389,402 km

• M1: 140,921 km (0.104 R)
• M2: 392,096 km (0.051 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.44 AU - 1.66 AU

Year: 881 Days

Day: 47.9 Hours

Environment

Temp: -111 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,389,402 km

• M1: 697,874 km (0.098 R)

Planet 3 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 72.7

Radius: 4.7

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 9.75 AU - 9.95 AU

Year: 14114 Days

Day: 20.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 90,389,402 km

• M1: 58,642 km (0.109 R)
• M2: 213,775 km (0.09 R)
• M3: 387,458 km (0.114 R)
• M4: 1,091,915 km (0.111 R)
• M5: 1,355,058 km (0.056 R)
• M6: 1,501,963 km (0.094 R)
• M7: 2,080,458 km (0.069 R)
• M8: 2,620,805 km (0.118 R)
• M9: 6,121,844 km (0.109 R)
• M10: 7,116,371 km (0.115 R)
• M11: 10,474,693 km (0.054 R)
• M12: 12,666,901 km (0.096 R)
• M13: 14,703,526 km (0.073 R)
• M14: 15,146,784 km (0.111 R)
• M15: 18,630,171 km (0.059 R)
• M16: 19,018,377 km (0.093 R)
• M17: 20,694,322 km (0.119 R)

Planet 4 - Ice Giant

Semi-Major Axis: 16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 538

Radius: 5.6

Gravity: 17.16 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 13.2 AU - 18.8 AU

Year: 29220 Days

Day: 23.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 176.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 90,389,402 km

• M1: 73,153 km (0.033 R)
• M2: 268,079 km (0.066 R)
• M3: 453,581 km (0.082 R)
• M4: 632,350 km (0.114 R)
• M5: 1,333,964 km (0.076 R)
• M6: 1,731,446 km (0.099 R)
• M7: 2,295,280 km (0.06 R)
• M8: 2,734,350 km (0.076 R)
• M9: 3,256,746 km (0.105 R)
• M10: 3,810,856 km (0.09 R)
• M11: 4,534,162 km (0.102 R)
• M12: 4,832,610 km (0.092 R)
• M13: 5,025,740 km (0.042 R)
• M14: 6,069,634 km (0.118 R)
• M15: 6,294,630 km (0.04 R)
• M16: 7,250,710 km (0.083 R)
• M17: 10,246,706 km (0.097 R)
• M18: 11,024,316 km (0.091 R)
• M19: 12,406,451 km (0.118 R)
• M20: 12,842,678 km (0.061 R)
• M21: 13,289,078 km (0.113 R)
• M22: 14,291,683 km (0.118 R)
• M23: 17,330,016 km (0.115 R)
• M24: 17,692,043 km (0.1 R)
• M25: 26,391,907 km (0.108 R)
• M26: 30,521,257 km (0.067 R)
• M27: 36,669,430 km (0.094 R)
• M28: 42,930,999 km (0.057 R)
• M29: 46,486,940 km (0.085 R)
• M30: 49,143,798 km (0.09 R)
• M31: 55,929,707 km (0.106 R)
• M32: 72,718,927 km (0.119 R)
• M33: 73,660,496 km (0.08 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 16,688 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit