🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.18 AU - 1.2 AU

Year: 489 Days

Day: 27.6 Hours

Environment

Temp: -21 °C

Axial Tilt: 9.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.03 AU - 1.35 AU

Year: 489 Days

Day: 43.2 Hours

Environment

Temp: -13 °C

Axial Tilt: 47.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 35,551,421 km

• M1: 200,611 km (0.119 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.79 AU - 4.19 AU

Year: 2456 Days

Day: 14.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,551,421 km

• M1: 46,525 km (0.047 R)

Asteroid Belt

Center: 5.58 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.4

Radius: 10.9

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 5.8 AU - 9.52 AU

Year: 7987 Days

Day: 12 Hours

Environment

Temp: -177 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,551,421 km

• M1: 135,536 km (0.095 R)
• M2: 532,718 km (0.112 R)
• M3: 886,667 km (0.056 R)
• M4: 1,337,555 km (0.098 R)
• M5: 1,812,079 km (0.083 R)
• M6: 2,518,181 km (0.053 R)
• M7: 3,004,673 km (0.11 R)
• M8: 3,947,140 km (0.086 R)
• M9: 4,293,459 km (0.113 R)
• M10: 7,655,372 km (0.106 R)
• M11: 11,594,733 km (0.079 R)
• M12: 13,603,383 km (0.111 R)
• M13: 15,345,301 km (0.098 R)
• M14: 16,906,803 km (0.09 R)
• M15: 20,416,369 km (0.105 R)
• M16: 22,302,499 km (0.039 R)
• M17: 23,088,487 km (0.118 R)
• M18: 23,892,725 km (0.038 R)
• M19: 25,387,507 km (0.071 R)
• M20: 26,592,517 km (0.106 R)
• M21: 29,302,483 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.1

Radius: 10.7

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 8.02 AU - 8.1 AU

Year: 8620 Days

Day: 5.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,551,421 km

• M1: 133,740 km (0.113 R)
• M2: 499,956 km (0.117 R)
• M3: 1,167,911 km (0.052 R)
• M4: 1,525,150 km (0.059 R)
• M5: 2,138,502 km (0.09 R)
• M6: 2,890,530 km (0.034 R)
• M7: 3,233,109 km (0.073 R)
• M8: 3,671,281 km (0.038 R)
• M9: 5,346,628 km (0.034 R)
• M10: 6,937,003 km (0.11 R)
• M11: 7,593,738 km (0.068 R)
• M12: 8,172,382 km (0.106 R)
• M13: 8,533,511 km (0.079 R)
• M14: 9,201,915 km (0.112 R)
• M15: 12,126,104 km (0.12 R)
• M16: 13,574,511 km (0.092 R)
• M17: 14,485,412 km (0.116 R)
• M18: 15,075,127 km (0.084 R)
• M19: 16,239,746 km (0.092 R)
• M20: 16,876,285 km (0.059 R)
• M21: 19,025,558 km (0.071 R)
• M22: 19,733,156 km (0.061 R)
• M23: 20,165,943 km (0.074 R)
• M24: 20,827,165 km (0.104 R)
• M25: 26,212,090 km (0.064 R)
• M26: 26,999,723 km (0.097 R)
• M27: 28,347,301 km (0.077 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: 249 - 13,419 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit