🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.58 AU - 0.9 AU

Year: 241 Days

Day: 31.2 Hours

Environment

Temp: 110 °C

Axial Tilt: 42.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.94 AU - 2.98 AU

Year: 1929 Days

Day: 20.6 Hours

Environment

Temp: -109 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 40,965,332 km

• M1: 63,579 km (0.096 R)
• M2: 322,084 km (0.028 R)

Asteroid Belt

Center: 4 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904

Radius: 9.2

Gravity: 10.68 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4 AU - 6.06 AU

Year: 4273 Days

Day: 13.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,965,332 km

• M1: 158,424 km (0.065 R)
• M2: 475,871 km (0.09 R)
• M3: 787,782 km (0.118 R)
• M4: 2,222,725 km (0.049 R)
• M5: 2,662,693 km (0.116 R)
• M6: 3,025,318 km (0.109 R)
• M7: 3,718,105 km (0.106 R)
• M8: 4,055,598 km (0.087 R)
• M9: 4,664,162 km (0.102 R)
• M10: 6,891,525 km (0.102 R)
• M11: 7,721,943 km (0.087 R)
• M12: 9,960,077 km (0.114 R)
• M13: 10,261,816 km (0.085 R)
• M14: 13,678,631 km (0.103 R)
• M15: 14,652,363 km (0.106 R)
• M16: 15,156,209 km (0.102 R)
• M17: 17,850,616 km (0.061 R)
• M18: 18,619,849 km (0.03 R)
• M19: 20,224,136 km (0.053 R)
• M20: 20,639,270 km (0.066 R)
• M21: 23,024,758 km (0.085 R)
• M22: 24,322,669 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.5

Radius: 12

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 6.38 AU - 7.92 AU

Year: 7241 Days

Day: 12.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,965,332 km

• M1: 149,299 km (0.117 R)
• M2: 549,174 km (0.093 R)
• M3: 1,026,092 km (0.117 R)
• M4: 1,753,437 km (0.12 R)
• M5: 2,353,773 km (0.07 R)
• M6: 3,532,155 km (0.059 R)
• M7: 3,993,964 km (0.08 R)
• M8: 8,362,671 km (0.036 R)
• M9: 9,413,745 km (0.093 R)
• M10: 9,924,024 km (0.043 R)
• M11: 11,306,757 km (0.103 R)
• M12: 13,499,413 km (0.085 R)
• M13: 15,703,288 km (0.058 R)
• M14: 17,925,415 km (0.042 R)
• M15: 18,422,529 km (0.106 R)
• M16: 20,735,162 km (0.034 R)
• M17: 21,282,990 km (0.11 R)
• M18: 21,680,322 km (0.118 R)
• M19: 22,082,441 km (0.081 R)
• M20: 23,068,141 km (0.039 R)
• M21: 23,571,837 km (0.112 R)
• M22: 26,383,230 km (0.117 R)
• M23: 32,558,181 km (0.07 R)
• M24: 33,405,354 km (0.105 R)
• M25: 34,376,095 km (0.092 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 154 - 13,864 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit