🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.46 AU - 0.72 AU

Year: 288 Days

Day: 21.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 14.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.51 AU - 0.71 AU

Year: 303 Days

Day: 22.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 24.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,913,762 km

• M1: 55,950 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.4

Radius: 8.4

Gravity: 9.69 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.82 AU - 0.86 AU

Year: 489 Days

Day: 7.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,913,762 km

• M1: 106,813 km (0.054 R)
• M2: 297,550 km (0.111 R)
• M3: 473,627 km (0.088 R)
• M4: 638,334 km (0.067 R)
• M5: 995,723 km (0.049 R)
• M6: 1,248,544 km (0.025 R)
• M7: 1,467,705 km (0.077 R)
• M8: 1,636,750 km (0.098 R)
• M9: 1,862,045 km (0.05 R)
• M10: 2,203,427 km (0.06 R)
• M11: 2,366,638 km (0.111 R)
• M12: 2,598,814 km (0.107 R)
• M13: 3,088,747 km (0.112 R)
• M14: 3,336,631 km (0.083 R)
• M15: 3,510,314 km (0.078 R)
• M16: 4,210,282 km (0.108 R)
• M17: 4,563,633 km (0.111 R)
• M18: 5,064,786 km (0.034 R)
• M19: 5,406,018 km (0.109 R)
• M20: 5,639,690 km (0.077 R)
• M21: 6,346,241 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.2

Radius: 11.5

Gravity: 5.23 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.77 AU - 6.17 AU

Year: 8134 Days

Day: 8.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 41,913,762 km

• M1: 231,428 km (0.042 R)
• M2: 527,931 km (0.115 R)
• M3: 795,711 km (0.116 R)
• M4: 1,146,518 km (0.107 R)
• M5: 1,572,573 km (0.077 R)
• M6: 3,120,761 km (0.11 R)
• M7: 4,261,445 km (0.094 R)
• M8: 4,664,312 km (0.074 R)
• M9: 5,086,028 km (0.116 R)
• M10: 6,302,409 km (0.109 R)
• M11: 7,302,321 km (0.106 R)
• M12: 8,526,630 km (0.084 R)
• M13: 8,828,668 km (0.108 R)
• M14: 9,647,118 km (0.115 R)
• M15: 10,049,686 km (0.093 R)
• M16: 12,233,366 km (0.09 R)
• M17: 12,870,802 km (0.076 R)
• M18: 14,437,990 km (0.087 R)
• M19: 17,198,818 km (0.106 R)
• M20: 17,574,608 km (0.095 R)
• M21: 19,344,351 km (0.099 R)
• M22: 20,261,236 km (0.074 R)
• M23: 21,437,524 km (0.115 R)
• M24: 23,953,312 km (0.078 R)
• M25: 25,037,747 km (0.105 R)
• M26: 25,817,601 km (0.103 R)
• M27: 27,820,118 km (0.042 R)
• M28: 28,573,193 km (0.079 R)
• M29: 28,918,914 km (0.114 R)
• M30: 30,464,559 km (0.08 R)
• M31: 32,490,264 km (0.12 R)
• M32: 33,752,122 km (0.056 R)
• M33: 36,660,005 km (0.082 R)
• M34: 38,318,747 km (0.102 R)
• M35: 39,526,151 km (0.105 R)
• M36: 40,259,629 km (0.052 R)
• M37: 40,834,833 km (0.039 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 18,381 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit