🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.43 AU - 0.67 AU

Year: 259 Days

Day: 38.1 Hours

Environment

Temp: -132 °C

Axial Tilt: 12.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.3

Radius: 10.4

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.56 AU - 0.88 AU

Year: 388 Days

Day: 6.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 16,980,733 km

• M1: 129,402 km (0.083 R)
• M2: 592,108 km (0.079 R)
• M3: 1,161,328 km (0.095 R)
• M4: 1,558,361 km (0.068 R)
• M5: 1,964,968 km (0.059 R)
• M6: 2,322,507 km (0.091 R)
• M7: 2,888,735 km (0.11 R)
• M8: 3,680,108 km (0.081 R)
• M9: 4,494,518 km (0.066 R)
• M10: 4,937,179 km (0.114 R)
• M11: 5,506,548 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.2

Radius: 13.5

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.85 AU - 0.95 AU

Year: 543 Days

Day: 13.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 16,980,733 km

• M1: 168,148 km (0.108 R)
• M2: 605,273 km (0.068 R)
• M3: 1,076,656 km (0.064 R)
• M4: 1,661,883 km (0.085 R)
• M5: 2,094,370 km (0.065 R)
• M6: 2,914,915 km (0.058 R)
• M7: 3,541,281 km (0.072 R)
• M8: 5,259,113 km (0.102 R)
• M9: 6,265,458 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.1

Radius: 9

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.19 AU - 1.43 AU

Year: 953 Days

Day: 5.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 16,980,733 km

• M1: 222,602 km (0.098 R)
• M2: 953,537 km (0.061 R)
• M3: 1,708,557 km (0.105 R)
• M4: 2,167,972 km (0.12 R)
• M5: 2,450,712 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.4

Radius: 10.1

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.22 AU - 2.8 AU

Year: 2528 Days

Day: 13.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 16,980,733 km

• M1: 125,662 km (0.115 R)
• M2: 528,230 km (0.082 R)
• M3: 1,007,392 km (0.092 R)
• M4: 1,330,224 km (0.091 R)
• M5: 2,750,357 km (0.093 R)
• M6: 3,165,641 km (0.048 R)
• M7: 5,172,346 km (0.101 R)
• M8: 5,808,437 km (0.108 R)
• M9: 6,790,846 km (0.067 R)
• M10: 7,350,791 km (0.039 R)
• M11: 7,671,528 km (0.106 R)
• M12: 8,155,029 km (0.075 R)
• M13: 9,418,981 km (0.088 R)
• M14: 12,785,382 km (0.104 R)
• M15: 13,595,903 km (0.078 R)
• M16: 16,529,667 km (0.044 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 319 - 16,631 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit