🌌 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: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.5 AU - 0.68 AU

Year: 288 Days

Day: 47 Hours

Environment

Temp: -118 °C

Axial Tilt: 49.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.2

Radius: 11.2

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.88 AU - 1.08 AU

Year: 617 Days

Day: 12.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 25,917,423 km

• M1: 140,622 km (0.057 R)
• M2: 213,476 km (0.102 R)
• M3: 373,845 km (0.085 R)
• M4: 451,038 km (0.099 R)
• M5: 551,867 km (0.119 R)
• M6: 667,805 km (0.096 R)
• M7: 760,705 km (0.104 R)
• M8: 848,519 km (0.079 R)
• M9: 936,782 km (0.065 R)
• M10: 1,024,745 km (0.075 R)
• M11: 1,152,951 km (0.117 R)
• M12: 1,267,244 km (0.118 R)
• M13: 1,361,789 km (0.065 R)
• M14: 1,475,035 km (0.082 R)
• M15: 1,621,192 km (0.069 R)
• M16: 1,715,738 km (0.081 R)
• M17: 1,803,253 km (0.044 R)
• M18: 1,919,490 km (0.116 R)
• M19: 2,038,271 km (0.103 R)
• M20: 2,150,170 km (0.072 R)
• M21: 2,230,654 km (0.115 R)
• M22: 2,394,763 km (0.12 R)
• M23: 2,468,514 km (0.049 R)
• M24: 2,593,129 km (0.098 R)
• M25: 2,725,075 km (0.081 R)
• M26: 2,817,676 km (0.061 R)
• M27: 2,963,983 km (0.099 R)
• M28: 3,075,433 km (0.101 R)
• M29: 3,182,844 km (0.087 R)
• M30: 3,258,690 km (0.103 R)
• M31: 3,335,285 km (0.107 R)
• M32: 3,540,682 km (0.076 R)
• M33: 3,670,384 km (0.049 R)
• M34: 3,859,326 km (0.055 R)
• M35: 3,969,729 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.7

Radius: 13.4

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.37 AU - 2.05 AU

Year: 1422 Days

Day: 13.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (51)

Outer Limit: 25,917,423 km

• M1: 173,234 km (0.103 R)
• M2: 292,613 km (0.082 R)
• M3: 400,174 km (0.116 R)
• M4: 504,444 km (0.101 R)
• M5: 605,722 km (0.076 R)
• M6: 737,218 km (0.087 R)
• M7: 861,983 km (0.101 R)
• M8: 1,051,374 km (0.115 R)
• M9: 1,135,149 km (0.088 R)
• M10: 1,330,972 km (0.05 R)
• M11: 1,465,760 km (0.112 R)
• M12: 1,568,085 km (0.079 R)
• M13: 1,672,953 km (0.081 R)
• M14: 1,819,260 km (0.045 R)
• M15: 1,970,054 km (0.109 R)
• M16: 2,083,898 km (0.116 R)
• M17: 2,191,758 km (0.072 R)
• M18: 2,430,517 km (0.086 R)
• M19: 2,562,013 km (0.088 R)
• M20: 2,651,024 km (0.074 R)
• M21: 2,999,138 km (0.111 R)
• M22: 3,102,660 km (0.119 R)
• M23: 3,529,163 km (0.118 R)
• M24: 3,933,078 km (0.114 R)
• M25: 4,182,756 km (0.073 R)
• M26: 4,267,279 km (0.107 R)
• M27: 4,416,279 km (0.03 R)
• M28: 4,545,531 km (0.068 R)
• M29: 4,708,892 km (0.03 R)
• M30: 4,874,198 km (0.089 R)
• M31: 5,052,668 km (0.052 R)
• M32: 5,221,863 km (0.039 R)
• M33: 6,001,268 km (0.105 R)
• M34: 6,156,700 km (0.09 R)
• M35: 6,253,041 km (0.042 R)
• M36: 6,410,718 km (0.102 R)
• M37: 6,520,672 km (0.083 R)
• M38: 6,606,691 km (0.103 R)
• M39: 6,941,640 km (0.092 R)
• M40: 7,193,563 km (0.111 R)
• M41: 7,333,437 km (0.116 R)
• M42: 7,538,386 km (0.116 R)
• M43: 7,719,250 km (0.12 R)
• M44: 7,914,775 km (0.108 R)
• M45: 8,125,109 km (0.109 R)
• M46: 8,444,201 km (0.086 R)
• M47: 8,537,999 km (0.08 R)
• M48: 8,645,710 km (0.095 R)
• M49: 8,821,637 km (0.103 R)
• M50: 9,012,374 km (0.088 R)
• M51: 9,246,046 km (0.095 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.1

Radius: 6.6

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 7.8 AU - 9.54 AU

Year: 16232 Days

Day: 24.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 25,917,423 km

• M1: 86,318 km (0.063 R)
• M2: 655,687 km (0.097 R)
• M3: 999,015 km (0.076 R)
• M4: 2,238,583 km (0.059 R)
• M5: 2,375,614 km (0.053 R)
• M6: 2,839,368 km (0.066 R)
• M7: 3,215,157 km (0.066 R)
• M8: 4,562,885 km (0.12 R)
• M9: 5,136,293 km (0.114 R)
• M10: 5,967,459 km (0.064 R)
• M11: 6,301,960 km (0.096 R)
• M12: 6,495,839 km (0.086 R)
• M13: 6,544,608 km (0.116 R)
• M14: 6,939,097 km (0.108 R)
• M15: 7,064,011 km (0.085 R)
• M16: 7,906,995 km (0.056 R)
• M17: 9,464,010 km (0.103 R)
• M18: 9,769,788 km (0.106 R)
• M19: 10,333,922 km (0.101 R)
• M20: 10,391,068 km (0.088 R)
• M21: 10,764,165 km (0.093 R)
• M22: 12,269,868 km (0.092 R)
• M23: 12,694,576 km (0.119 R)
• M24: 13,903,177 km (0.094 R)
• M25: 15,148,131 km (0.076 R)
• M26: 15,310,295 km (0.12 R)
• M27: 15,734,554 km (0.072 R)
• M28: 15,832,990 km (0.052 R)
• M29: 15,997,697 km (0.119 R)
• M30: 16,063,670 km (0.083 R)
• M31: 17,708,648 km (0.094 R)
• M32: 17,879,489 km (0.115 R)
• M33: 18,429,859 km (0.11 R)
• M34: 20,292,502 km (0.101 R)
• M35: 21,555,108 km (0.116 R)
• M36: 21,700,966 km (0.079 R)
• M37: 23,477,291 km (0.115 R)
• M38: 23,665,037 km (0.112 R)
• M39: 23,853,231 km (0.09 R)
• M40: 24,269,113 km (0.066 R)
• M41: 24,572,946 km (0.082 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 265 - 17,516 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit