🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.77 AU - 0.79 AU

Year: 257 Days

Day: 23.1 Hours

Environment

Temp: 165 °C

Axial Tilt: 3.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.69 AU - 1.13 AU

Year: 324 Days

Day: 16.6 Hours

Environment

Temp: 24 °C

Axial Tilt: 47.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.62 AU - 2.4 AU

Year: 1062 Days

Day: 36.2 Hours

Environment

Temp: -67 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 80,255,176 km

• M1: 226,491 km (0.072 R)
• M2: 350,957 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.15 AU - 4.45 AU

Year: 2761 Days

Day: 30.8 Hours

Environment

Temp: -117 °C

Axial Tilt: 24.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,255,176 km

• M1: 2,013,587 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34

Radius: 12.5

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.86 AU - 5.26 AU

Year: 4243 Days

Day: 13 Hours

Environment

Temp: -151 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 80,255,176 km

• M1: 155,432 km (0.107 R)
• M2: 1,856,659 km (0.042 R)
• M3: 5,554,120 km (0.05 R)
• M4: 7,317,131 km (0.115 R)
• M5: 7,730,171 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.9

Radius: 14.4

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 4.24 AU - 6.46 AU

Year: 4613 Days

Day: 11.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 80,255,176 km

• M1: 187,596 km (0.088 R)
• M2: 792,570 km (0.105 R)
• M3: 1,662,182 km (0.115 R)
• M4: 2,859,862 km (0.055 R)
• M5: 4,014,010 km (0.1 R)
• M6: 5,358,147 km (0.064 R)
• M7: 6,175,998 km (0.107 R)
• M8: 8,329,609 km (0.101 R)
• M9: 8,956,275 km (0.11 R)
• M10: 11,317,528 km (0.098 R)
• M11: 12,846,418 km (0.109 R)
• M12: 13,971,693 km (0.07 R)
• M13: 14,958,889 km (0.113 R)
• M14: 19,741,234 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 716.6

Radius: 5.5

Gravity: 23.69 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 11.23 AU - 18.33 AU

Year: 21182 Days

Day: 22.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 80,255,176 km

• M1: 91,404 km (0.08 R)
• M2: 274,662 km (0.08 R)
• M3: 832,363 km (0.091 R)
• M4: 1,233,285 km (0.094 R)
• M5: 1,445,415 km (0.06 R)
• M6: 1,664,276 km (0.065 R)
• M7: 2,064,750 km (0.04 R)
• M8: 2,480,482 km (0.062 R)
• M9: 3,565,665 km (0.113 R)
• M10: 3,747,576 km (0.054 R)
• M11: 4,130,098 km (0.106 R)
• M12: 4,972,932 km (0.109 R)
• M13: 5,162,024 km (0.087 R)
• M14: 5,514,477 km (0.044 R)
• M15: 7,230,215 km (0.052 R)
• M16: 8,716,619 km (0.105 R)
• M17: 9,560,202 km (0.113 R)
• M18: 10,212,448 km (0.114 R)
• M19: 10,456,891 km (0.114 R)
• M20: 12,765,186 km (0.071 R)
• M21: 14,378,001 km (0.066 R)
• M22: 14,685,125 km (0.097 R)
• M23: 19,551,395 km (0.113 R)
• M24: 21,786,237 km (0.09 R)
• M25: 23,863,104 km (0.112 R)
• M26: 24,293,797 km (0.099 R)
• M27: 25,841,985 km (0.049 R)
• M28: 27,572,533 km (0.108 R)
• M29: 29,011,365 km (0.092 R)
• M30: 29,255,958 km (0.111 R)
• M31: 35,407,572 km (0.044 R)
• M32: 43,797,320 km (0.085 R)
• M33: 44,280,820 km (0.093 R)
• M34: 48,621,103 km (0.05 R)
• M35: 48,966,375 km (0.091 R)
• M36: 49,661,556 km (0.062 R)
• M37: 50,539,845 km (0.115 R)
• M38: 56,788,399 km (0.077 R)
• M39: 60,894,112 km (0.063 R)
• M40: 63,945,011 km (0.057 R)
• M41: 67,738,664 km (0.07 R)
• M42: 68,169,207 km (0.067 R)
• M43: 69,471,905 km (0.101 R)
• M44: 76,002,600 km (0.08 R)
• M45: 76,934,295 km (0.087 R)
• M46: 78,109,536 km (0.101 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 403 - 12,706 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit