🌌 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: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.58 AU - 0.94 AU

Year: 240 Days

Day: 43.6 Hours

Environment

Temp: 129 °C

Axial Tilt: 28.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.19

Radius: 0.51

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.85 AU - 1.33 AU

Year: 412 Days

Day: 46 Hours

Environment

Temp: 27 °C

Axial Tilt: 24.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 54,829,970 km

• M1: 11,968 km (0.09 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.27 AU - 2.63 AU

Year: 1387 Days

Day: 31.5 Hours

Environment

Temp: -92 °C

Axial Tilt: 4.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.93 AU - 4.49 AU

Year: 2584 Days

Day: 39.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 49.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Ice Giant

Semi-Major Axis: 16.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 627.9

Radius: 5.9

Gravity: 18.04 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 13.97 AU - 19.37 AU

Year: 24615 Days

Day: 22.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,829,970 km

• M1: 73,303 km (0.077 R)
• M2: 311,164 km (0.044 R)
• M3: 527,931 km (0.055 R)
• M4: 4,163,758 km (0.087 R)
• M5: 4,439,317 km (0.105 R)
• M6: 5,380,138 km (0.107 R)
• M7: 12,275,852 km (0.08 R)
• M8: 17,403,468 km (0.094 R)
• M9: 17,848,522 km (0.084 R)
• M10: 18,854,418 km (0.089 R)
• M11: 19,513,845 km (0.086 R)
• M12: 24,456,260 km (0.064 R)
• M13: 34,301,745 km (0.092 R)
• M14: 37,303,426 km (0.075 R)
• M15: 37,598,134 km (0.096 R)
• M16: 38,192,187 km (0.116 R)
• M17: 47,178,531 km (0.094 R)
• M18: 52,896,909 km (0.097 R)
• M19: 83,870,999 km (0.096 R)
• M20: 84,376,789 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 17.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 143.3

Radius: 7.6

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 17 AU - 18.24 AU

Year: 26748 Days

Day: 17.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,829,970 km

• M1: 106,962 km (0.071 R)
• M2: 889,659 km (0.056 R)
• M3: 1,159,982 km (0.056 R)
• M4: 1,471,295 km (0.093 R)
• M5: 1,921,884 km (0.106 R)
• M6: 2,957,999 km (0.084 R)
• M7: 3,366,401 km (0.074 R)
• M8: 3,894,631 km (0.091 R)
• M9: 4,355,841 km (0.112 R)
• M10: 4,662,367 km (0.03 R)
• M11: 5,633,407 km (0.055 R)
• M12: 12,155,425 km (0.105 R)
• M13: 21,387,559 km (0.105 R)
• M14: 23,186,024 km (0.119 R)
• M15: 23,650,975 km (0.106 R)
• M16: 28,968,281 km (0.111 R)
• M17: 29,943,809 km (0.1 R)
• M18: 34,909,262 km (0.069 R)
• M19: 42,300,743 km (0.029 R)

Kuiper Belt

Range: 30.3 - 56.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 253 - 12,648 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit