🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.98

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.71 AU - 0.97 AU

Year: 278 Days

Day: 36.5 Hours

Environment

Temp: 143 °C

Axial Tilt: 32.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 74,332,995 km

• M1: 89,011 km (0.074 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.88 AU - 0.92 AU

Year: 309 Days

Day: 20.5 Hours

Environment

Temp: 124 °C

Axial Tilt: 3.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 74,332,995 km

• M1: 471,233 km (0.079 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.19

Radius: 0.51

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.58 AU - 2.02 AU

Year: 873 Days

Day: 29.3 Hours

Environment

Temp: -42 °C

Axial Tilt: 37.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.91 AU - 2.77 AU

Year: 1295 Days

Day: 31.8 Hours

Environment

Temp: -77 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.72 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.8

Radius: 12.6

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 4.26 AU - 5.94 AU

Year: 4165 Days

Day: 14.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,332,995 km

• M1: 156,779 km (0.088 R)
• M2: 659,427 km (0.11 R)
• M3: 1,088,175 km (0.115 R)
• M4: 1,564,195 km (0.083 R)
• M5: 2,394,164 km (0.109 R)
• M6: 2,834,281 km (0.065 R)
• M7: 3,272,902 km (0.1 R)
• M8: 3,984,838 km (0.11 R)
• M9: 4,894,693 km (0.103 R)
• M10: 5,772,982 km (0.047 R)
• M11: 7,125,197 km (0.118 R)
• M12: 7,775,050 km (0.105 R)
• M13: 9,344,182 km (0.095 R)
• M14: 10,163,679 km (0.069 R)
• M15: 11,329,944 km (0.108 R)
• M16: 11,811,949 km (0.088 R)
• M17: 12,911,044 km (0.077 R)
• M18: 13,730,093 km (0.094 R)
• M19: 20,080,073 km (0.054 R)
• M20: 20,528,119 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260

Radius: 14

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 9.16 AU - 9.56 AU

Year: 10356 Days

Day: 11.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 74,332,995 km

• M1: 174,132 km (0.079 R)
• M2: 893,398 km (0.109 R)
• M3: 1,527,095 km (0.095 R)
• M4: 3,185,387 km (0.102 R)
• M5: 3,774,504 km (0.083 R)
• M6: 4,461,756 km (0.041 R)
• M7: 4,918,778 km (0.105 R)
• M8: 5,436,985 km (0.094 R)
• M9: 6,119,899 km (0.078 R)
• M10: 6,617,911 km (0.07 R)
• M11: 7,695,913 km (0.111 R)
• M12: 8,640,025 km (0.099 R)
• M13: 10,997,837 km (0.109 R)
• M14: 12,719,858 km (0.036 R)
• M15: 13,926,066 km (0.102 R)
• M16: 14,615,413 km (0.098 R)
• M17: 17,936,336 km (0.108 R)
• M18: 18,478,030 km (0.089 R)
• M19: 20,460,202 km (0.078 R)
• M20: 22,114,455 km (0.107 R)
• M21: 25,944,759 km (0.118 R)
• M22: 26,550,630 km (0.108 R)
• M23: 28,608,648 km (0.082 R)
• M24: 33,957,669 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.4

Radius: 5.9

Gravity: 26.38 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 10.58 AU - 15.14 AU

Year: 16678 Days

Day: 24.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 74,332,995 km

• M1: 84,373 km (0.072 R)
• M2: 444,754 km (0.111 R)
• M3: 1,037,162 km (0.098 R)
• M4: 1,319,304 km (0.046 R)
• M5: 1,903,334 km (0.079 R)
• M6: 2,865,248 km (0.03 R)
• M7: 3,537,990 km (0.109 R)
• M8: 3,744,136 km (0.112 R)
• M9: 4,546,429 km (0.105 R)
• M10: 5,342,738 km (0.104 R)
• M11: 5,575,064 km (0.117 R)
• M12: 6,485,816 km (0.083 R)
• M13: 8,285,927 km (0.116 R)
• M14: 8,809,968 km (0.115 R)
• M15: 9,637,095 km (0.107 R)
• M16: 10,157,546 km (0.112 R)
• M17: 11,701,695 km (0.078 R)
• M18: 16,113,486 km (0.091 R)
• M19: 18,203,219 km (0.098 R)
• M20: 24,046,511 km (0.079 R)
• M21: 27,560,266 km (0.055 R)
• M22: 28,138,611 km (0.085 R)
• M23: 29,559,342 km (0.061 R)
• M24: 32,032,345 km (0.056 R)
• M25: 34,774,025 km (0.041 R)
• M26: 36,965,035 km (0.103 R)
• M27: 38,237,066 km (0.117 R)
• M28: 39,101,143 km (0.062 R)
• M29: 43,930,312 km (0.082 R)
• M30: 49,311,647 km (0.114 R)
• M31: 50,334,896 km (0.099 R)
• M32: 52,072,027 km (0.118 R)
• M33: 54,028,318 km (0.079 R)
• M34: 55,481,662 km (0.1 R)
• M35: 56,403,035 km (0.046 R)
• M36: 56,588,536 km (0.118 R)
• M37: 67,638,732 km (0.064 R)
• M38: 71,474,422 km (0.097 R)

Kuiper Belt

Range: 30.3 - 52.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 334 - 17,373 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit