🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.43 AU - 0.63 AU

Year: 253 Days

Day: 19.7 Hours

Environment

Temp: -128 °C

Axial Tilt: 29.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.6 AU - 0.7 AU

Year: 344 Days

Day: 46.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 47.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 25,429,872 km

• M1: 537,804 km (0.112 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.62 AU - 0.7 AU

Year: 352 Days

Day: 41.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 36.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 25,429,872 km

• M1: 459,415 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.1

Radius: 14.7

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.65 AU - 0.71 AU

Year: 368 Days

Day: 8.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,429,872 km

• M1: 182,809 km (0.082 R)
• M2: 730,187 km (0.084 R)
• M3: 1,367,325 km (0.108 R)
• M4: 2,018,524 km (0.091 R)
• M5: 2,659,850 km (0.045 R)
• M6: 3,214,858 km (0.098 R)
• M7: 5,061,494 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.5

Radius: 11

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.03 AU - 2.15 AU

Year: 1982 Days

Day: 6 Hours

Environment

Temp: -193 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,429,872 km

• M1: 138,827 km (0.106 R)
• M2: 747,241 km (0.114 R)
• M3: 1,369,120 km (0.065 R)
• M4: 1,739,674 km (0.083 R)
• M5: 2,215,993 km (0.092 R)
• M6: 2,756,042 km (0.111 R)
• M7: 3,382,258 km (0.059 R)
• M8: 5,208,848 km (0.113 R)
• M9: 5,860,945 km (0.087 R)
• M10: 6,325,447 km (0.069 R)
• M11: 6,731,156 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.2

Radius: 15

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 4.96 AU - 5.52 AU

Year: 7869 Days

Day: 7.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,429,872 km

• M1: 186,549 km (0.062 R)
• M2: 1,061,098 km (0.066 R)
• M3: 1,549,984 km (0.079 R)
• M4: 2,471,506 km (0.1 R)
• M5: 3,614,434 km (0.115 R)
• M6: 5,086,328 km (0.066 R)
• M7: 5,557,710 km (0.085 R)
• M8: 7,510,112 km (0.114 R)
• M9: 9,069,521 km (0.084 R)
• M10: 10,128,225 km (0.11 R)
• M11: 11,050,496 km (0.086 R)
• M12: 11,801,028 km (0.082 R)
• M13: 12,966,246 km (0.056 R)
• M14: 14,003,258 km (0.071 R)
• M15: 16,019,688 km (0.104 R)
• M16: 16,694,973 km (0.045 R)
• M17: 17,862,584 km (0.109 R)
• M18: 18,835,419 km (0.111 R)
• M19: 19,843,260 km (0.098 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 267 - 20,235 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit