🌌 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: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.51 AU - 0.59 AU

Year: 268 Days

Day: 36.5 Hours

Environment

Temp: -116 °C

Axial Tilt: 43.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,169,804 km

• M1: 292,314 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.6

Radius: 11.3

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.97 AU - 1.11 AU

Year: 696 Days

Day: 7.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 19,169,804 km

• M1: 140,472 km (0.061 R)
• M2: 1,152,053 km (0.091 R)
• M3: 1,674,599 km (0.106 R)
• M4: 2,625,293 km (0.048 R)
• M5: 3,238,345 km (0.049 R)
• M6: 3,604,860 km (0.102 R)
• M7: 5,375,949 km (0.107 R)
• M8: 6,163,582 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.7

Radius: 15

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.1 AU - 1.6 AU

Year: 1029 Days

Day: 9.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 19,169,804 km

• M1: 186,549 km (0.029 R)
• M2: 695,181 km (0.098 R)
• M3: 1,198,279 km (0.117 R)
• M4: 1,821,952 km (0.115 R)
• M5: 2,314,429 km (0.058 R)
• M6: 2,816,479 km (0.112 R)
• M7: 3,818,934 km (0.098 R)
• M8: 4,335,795 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.2

Radius: 13.5

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.83 AU - 1.85 AU

Year: 1637 Days

Day: 11.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 19,169,804 km

• M1: 168,148 km (0.074 R)
• M2: 654,042 km (0.108 R)
• M3: 1,130,810 km (0.116 R)
• M4: 1,723,367 km (0.098 R)
• M5: 3,410,383 km (0.111 R)
• M6: 3,921,559 km (0.116 R)
• M7: 4,520,548 km (0.101 R)
• M8: 5,925,572 km (0.052 R)
• M9: 6,814,632 km (0.108 R)
• M10: 7,710,573 km (0.097 R)
• M11: 8,145,604 km (0.115 R)
• M12: 8,829,117 km (0.072 R)
• M13: 11,667,736 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.4

Radius: 9.8

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.83 AU - 2.99 AU

Year: 2454 Days

Day: 8.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 19,169,804 km

• M1: 121,922 km (0.036 R)
• M2: 460,612 km (0.072 R)
• M3: 800,199 km (0.04 R)
• M4: 1,217,427 km (0.095 R)
• M5: 1,800,410 km (0.079 R)
• M6: 2,769,356 km (0.102 R)
• M7: 3,308,357 km (0.088 R)
• M8: 4,215,668 km (0.116 R)
• M9: 4,727,742 km (0.104 R)
• M10: 5,068,525 km (0.086 R)
• M11: 5,573,269 km (0.087 R)
• M12: 6,433,905 km (0.113 R)
• M13: 7,172,320 km (0.078 R)
• M14: 8,417,573 km (0.115 R)
• M15: 9,620,639 km (0.092 R)
• M16: 11,614,479 km (0.028 R)
• M17: 11,985,632 km (0.066 R)
• M18: 12,492,769 km (0.11 R)
• M19: 13,369,861 km (0.083 R)
• M20: 15,942,795 km (0.069 R)
• M21: 17,238,911 km (0.033 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: 521 - 11,992 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit