🌌 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: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.65 AU - 1.07 AU

Year: 332 Days

Day: 17.8 Hours

Environment

Temp: -17 °C

Axial Tilt: 53.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.19 AU - 1.55 AU

Year: 667 Days

Day: 12.6 Hours

Environment

Temp: -69 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 92,040,276 km

• M1: 36,352 km (0.096 R)
• M2: 333,005 km (0.098 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.46 AU - 2.04 AU

Year: 964 Days

Day: 14.4 Hours

Environment

Temp: -91 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.96 AU - 2.76 AU

Year: 1509 Days

Day: 15.8 Hours

Environment

Temp: -111 °C

Axial Tilt: 83.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.8

Radius: 11.9

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 6.58 AU - 7.86 AU

Year: 8075 Days

Day: 10.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 92,040,276 km

• M1: 148,999 km (0.044 R)
• M2: 625,170 km (0.093 R)
• M3: 1,195,287 km (0.038 R)
• M4: 1,654,552 km (0.119 R)
• M5: 2,248,157 km (0.072 R)
• M6: 2,624,395 km (0.045 R)
• M7: 3,391,683 km (0.082 R)
• M8: 3,990,972 km (0.072 R)
• M9: 4,383,666 km (0.117 R)
• M10: 5,753,085 km (0.105 R)
• M11: 6,325,596 km (0.065 R)
• M12: 7,703,393 km (0.117 R)
• M13: 9,182,467 km (0.118 R)
• M14: 10,643,589 km (0.102 R)
• M15: 12,363,516 km (0.103 R)
• M16: 13,089,514 km (0.102 R)
• M17: 13,725,904 km (0.084 R)
• M18: 17,017,506 km (0.092 R)
• M19: 19,065,201 km (0.069 R)
• M20: 20,415,921 km (0.1 R)
• M21: 21,351,206 km (0.086 R)
• M22: 23,559,869 km (0.066 R)
• M23: 24,850,749 km (0.081 R)
• M24: 25,380,027 km (0.079 R)
• M25: 26,552,724 km (0.106 R)
• M26: 28,235,701 km (0.117 R)
• M27: 30,387,815 km (0.115 R)
• M28: 37,152,930 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.2

Radius: 13.9

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 7.64 AU - 8.54 AU

Year: 9578 Days

Day: 9.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 92,040,276 km

• M1: 172,935 km (0.089 R)
• M2: 1,212,491 km (0.085 R)
• M3: 1,677,740 km (0.078 R)
• M4: 2,445,776 km (0.108 R)
• M5: 2,901,750 km (0.094 R)
• M6: 4,425,703 km (0.08 R)
• M7: 8,986,494 km (0.09 R)
• M8: 10,644,188 km (0.111 R)
• M9: 11,600,417 km (0.089 R)
• M10: 18,807,295 km (0.109 R)
• M11: 22,258,069 km (0.037 R)
• M12: 25,269,773 km (0.071 R)
• M13: 29,455,522 km (0.086 R)
• M14: 36,273,145 km (0.03 R)
• M15: 37,343,069 km (0.062 R)
• M16: 45,292,850 km (0.029 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 522.3

Radius: 4.7

Gravity: 23.64 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 13.72 AU - 21.28 AU

Year: 30472 Days

Day: 21.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 92,040,276 km

• M1: 59,839 km (0.073 R)
• M2: 260,599 km (0.116 R)
• M3: 577,149 km (0.103 R)
• M4: 750,981 km (0.085 R)
• M5: 1,148,612 km (0.118 R)
• M6: 1,583,643 km (0.093 R)
• M7: 1,770,192 km (0.115 R)
• M8: 1,971,401 km (0.084 R)
• M9: 2,278,675 km (0.099 R)
• M10: 4,036,001 km (0.045 R)
• M11: 4,243,493 km (0.058 R)
• M12: 6,444,377 km (0.034 R)
• M13: 7,474,209 km (0.053 R)
• M14: 11,904,550 km (0.109 R)
• M15: 14,143,731 km (0.104 R)
• M16: 17,454,032 km (0.082 R)
• M17: 17,728,096 km (0.076 R)
• M18: 19,239,184 km (0.109 R)
• M19: 21,350,010 km (0.119 R)
• M20: 24,511,611 km (0.08 R)
• M21: 26,024,943 km (0.094 R)
• M22: 30,144,121 km (0.107 R)
• M23: 31,879,456 km (0.092 R)
• M24: 44,723,630 km (0.078 R)
• M25: 50,219,706 km (0.03 R)
• M26: 54,381,968 km (0.067 R)
• M27: 57,146,985 km (0.085 R)
• M28: 61,047,450 km (0.112 R)
• M29: 66,223,088 km (0.053 R)
• M30: 76,457,078 km (0.04 R)
• M31: 88,230,879 km (0.097 R)
• M32: 90,394,513 km (0.115 R)
• M33: 90,667,380 km (0.079 R)
• M34: 91,214,908 km (0.113 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 19,347 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit