🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.71 AU - 1.01 AU

Year: 299 Days

Day: 39.7 Hours

Environment

Temp: 150 °C

Axial Tilt: 62.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.76 AU - 1.88 AU

Year: 920 Days

Day: 34.2 Hours

Environment

Temp: -74 °C

Axial Tilt: 24.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.13 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.9

Radius: 8.7

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 5.2 AU - 7.66 AU

Year: 6110 Days

Day: 6.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,703,911 km

• M1: 136,583 km (0.071 R)
• M2: 471,233 km (0.101 R)
• M3: 1,125,874 km (0.036 R)
• M4: 2,658,953 km (0.116 R)
• M5: 3,043,868 km (0.061 R)
• M6: 4,777,109 km (0.067 R)
• M7: 5,914,950 km (0.091 R)
• M8: 10,512,691 km (0.034 R)
• M9: 13,077,547 km (0.117 R)
• M10: 14,326,240 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.6

Radius: 11.2

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 9.79 AU - 10.97 AU

Year: 12532 Days

Day: 12.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,703,911 km

• M1: 143,165 km (0.094 R)
• M2: 498,909 km (0.098 R)
• M3: 1,064,688 km (0.118 R)
• M4: 1,421,629 km (0.059 R)
• M5: 2,077,615 km (0.118 R)
• M6: 2,944,086 km (0.072 R)
• M7: 3,751,316 km (0.111 R)
• M8: 4,265,634 km (0.052 R)
• M9: 6,776,784 km (0.088 R)
• M10: 7,576,534 km (0.059 R)
• M11: 7,963,543 km (0.06 R)
• M12: 10,017,373 km (0.11 R)
• M13: 12,990,929 km (0.101 R)
• M14: 16,566,767 km (0.095 R)
• M15: 17,523,446 km (0.078 R)
• M16: 23,013,239 km (0.054 R)
• M17: 23,455,001 km (0.118 R)
• M18: 24,814,397 km (0.065 R)
• M19: 25,356,989 km (0.093 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 405

Radius: 4.6

Gravity: 19.14 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 14.58 AU - 18.14 AU

Year: 24797 Days

Day: 24.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 73,703,911 km

• M1: 57,595 km (0.053 R)
• M2: 412,741 km (0.101 R)
• M3: 655,239 km (0.045 R)
• M4: 1,062,594 km (0.077 R)
• M5: 2,585,350 km (0.039 R)
• M6: 3,638,370 km (0.074 R)
• M7: 4,665,359 km (0.04 R)
• M8: 5,831,325 km (0.062 R)
• M9: 6,330,683 km (0.109 R)
• M10: 7,132,527 km (0.093 R)
• M11: 7,366,798 km (0.11 R)
• M12: 7,703,393 km (0.05 R)
• M13: 10,532,438 km (0.06 R)
• M14: 12,511,768 km (0.118 R)
• M15: 15,964,935 km (0.12 R)
• M16: 16,204,741 km (0.073 R)
• M17: 20,003,629 km (0.108 R)
• M18: 22,207,355 km (0.113 R)
• M19: 23,832,437 km (0.116 R)
• M20: 24,040,976 km (0.115 R)
• M21: 24,780,588 km (0.109 R)
• M22: 24,994,663 km (0.094 R)
• M23: 25,644,217 km (0.09 R)
• M24: 28,238,692 km (0.096 R)
• M25: 29,180,561 km (0.102 R)
• M26: 29,539,147 km (0.057 R)
• M27: 31,878,558 km (0.104 R)
• M28: 32,899,564 km (0.066 R)
• M29: 33,548,519 km (0.048 R)
• M30: 36,644,447 km (0.112 R)
• M31: 38,190,092 km (0.09 R)
• M32: 41,863,767 km (0.085 R)
• M33: 45,126,048 km (0.086 R)
• M34: 45,926,995 km (0.072 R)
• M35: 47,064,238 km (0.087 R)
• M36: 49,564,168 km (0.12 R)
• M37: 50,760,353 km (0.091 R)
• M38: 56,845,844 km (0.12 R)
• M39: 60,063,096 km (0.068 R)
• M40: 60,256,078 km (0.102 R)
• M41: 64,000,961 km (0.116 R)
• M42: 72,168,107 km (0.071 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 430 - 17,780 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit