🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.49 AU - 0.67 AU

Year: 290 Days

Day: 16.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 41 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.8

Radius: 12.2

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.07 AU - 1.07 AU

Year: 726 Days

Day: 11.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 26,711,449 km

• M1: 153,338 km (0.059 R)
• M2: 570,566 km (0.102 R)
• M3: 1,165,218 km (0.106 R)
• M4: 2,097,512 km (0.104 R)
• M5: 3,093,834 km (0.085 R)
• M6: 4,415,232 km (0.062 R)
• M7: 4,918,928 km (0.088 R)
• M8: 5,498,320 km (0.075 R)
• M9: 6,925,633 km (0.102 R)
• M10: 7,965,488 km (0.115 R)
• M11: 8,561,187 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.4

Radius: 10.5

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.18 AU - 2.98 AU

Year: 2719 Days

Day: 14.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 65.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 26,711,449 km

• M1: 130,599 km (0.041 R)
• M2: 540,647 km (0.112 R)
• M3: 1,016,817 km (0.118 R)
• M4: 1,475,633 km (0.049 R)
• M5: 1,810,433 km (0.11 R)
• M6: 2,550,943 km (0.12 R)
• M7: 2,991,509 km (0.116 R)
• M8: 3,682,352 km (0.1 R)
• M9: 4,145,806 km (0.049 R)
• M10: 4,959,618 km (0.117 R)
• M11: 5,850,922 km (0.104 R)
• M12: 6,375,263 km (0.085 R)
• M13: 7,670,631 km (0.069 R)
• M14: 8,396,779 km (0.118 R)
• M15: 10,169,962 km (0.071 R)
• M16: 12,180,408 km (0.088 R)
• M17: 17,340,338 km (0.118 R)
• M18: 18,589,929 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.5

Radius: 9.2

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.42 AU - 4 AU

Year: 3773 Days

Day: 5.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 66 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 26,711,449 km

• M1: 121,174 km (0.066 R)
• M2: 1,483,113 km (0.115 R)
• M3: 3,390,187 km (0.078 R)
• M4: 5,605,731 km (0.063 R)
• M5: 6,612,824 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.1

Radius: 15

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.97 AU - 4.47 AU

Year: 4707 Days

Day: 11.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 26,711,449 km

• M1: 186,549 km (0.112 R)
• M2: 881,431 km (0.089 R)
• M3: 1,530,087 km (0.103 R)
• M4: 2,028,098 km (0.113 R)
• M5: 2,539,723 km (0.084 R)
• M6: 3,138,414 km (0.116 R)
• M7: 4,294,057 km (0.079 R)
• M8: 5,388,665 km (0.106 R)
• M9: 5,915,997 km (0.12 R)
• M10: 6,538,773 km (0.099 R)
• M11: 7,304,116 km (0.058 R)
• M12: 8,057,641 km (0.112 R)
• M13: 8,637,631 km (0.109 R)
• M14: 11,154,466 km (0.11 R)
• M15: 12,154,977 km (0.118 R)
• M16: 13,165,211 km (0.104 R)
• M17: 14,545,551 km (0.068 R)
• M18: 15,851,839 km (0.083 R)
• M19: 17,956,232 km (0.086 R)
• M20: 20,841,227 km (0.052 R)
• M21: 22,500,118 km (0.105 R)
• M22: 25,535,609 km (0.079 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 14,752 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit