🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.64 AU - 0.86 AU

Year: 237 Days

Day: 22.8 Hours

Environment

Temp: 109 °C

Axial Tilt: 36.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 94,652,401 km

• M1: 77,940 km (0.089 R)
• M2: 565,630 km (0.085 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.43 AU - 1.55 AU

Year: 664 Days

Day: 32.1 Hours

Environment

Temp: -27 °C

Axial Tilt: 2.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.67 AU - 2.25 AU

Year: 1002 Days

Day: 32.9 Hours

Environment

Temp: -55 °C

Axial Tilt: 46.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.67 AU - 2.91 AU

Year: 1702 Days

Day: 35 Hours

Environment

Temp: -96 °C

Axial Tilt: 18.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Ice Giant

Semi-Major Axis: 18.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 198.8

Radius: 6.3

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 16.88 AU - 19.46 AU

Year: 28289 Days

Day: 24.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 94,652,401 km

• M1: 129,402 km (0.114 R)
• M2: 347,965 km (0.08 R)
• M3: 1,455,288 km (0.117 R)
• M4: 2,796,583 km (0.092 R)
• M5: 7,177,855 km (0.071 R)
• M6: 9,044,388 km (0.094 R)
• M7: 9,463,711 km (0.066 R)
• M8: 11,034,339 km (0.074 R)
• M9: 16,932,983 km (0.052 R)
• M10: 20,456,162 km (0.044 R)
• M11: 23,939,848 km (0.072 R)
• M12: 28,462,192 km (0.111 R)
• M13: 30,164,765 km (0.062 R)
• M14: 42,843,185 km (0.102 R)
• M15: 47,071,419 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 19.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 558.6

Radius: 4.7

Gravity: 25.29 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 18.26 AU - 20.14 AU

Year: 30729 Days

Day: 21.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 162.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 94,652,401 km

• M1: 61,784 km (0.092 R)
• M2: 286,031 km (0.116 R)
• M3: 515,065 km (0.096 R)
• M4: 1,664,127 km (0.097 R)
• M5: 2,271,344 km (0.097 R)
• M6: 4,620,629 km (0.101 R)
• M7: 6,249,750 km (0.114 R)
• M8: 11,671,177 km (0.101 R)
• M9: 19,585,054 km (0.031 R)
• M10: 24,278,986 km (0.029 R)
• M11: 29,280,043 km (0.107 R)
• M12: 32,783,027 km (0.117 R)
• M13: 34,345,577 km (0.096 R)
• M14: 43,243,658 km (0.102 R)
• M15: 54,146,052 km (0.087 R)
• M16: 54,734,719 km (0.117 R)
• M17: 68,787,794 km (0.102 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: 538 - 12,903 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit