🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.5 AU - 0.54 AU

Year: 242 Days

Day: 21.1 Hours

Environment

Temp: -112 °C

Axial Tilt: 21.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.58 AU - 0.72 AU

Year: 338 Days

Day: 39 Hours

Environment

Temp: -128 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,169,575 km

• M1: 88,562 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.1

Radius: 10.1

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.9 AU - 1.26 AU

Year: 725 Days

Day: 7.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,169,575 km

• M1: 125,662 km (0.06 R)
• M2: 672,891 km (0.094 R)
• M3: 1,047,035 km (0.082 R)
• M4: 1,648,120 km (0.091 R)
• M5: 2,131,770 km (0.103 R)
• M6: 2,651,921 km (0.118 R)
• M7: 3,203,489 km (0.061 R)
• M8: 3,534,549 km (0.025 R)
• M9: 3,947,140 km (0.074 R)
• M10: 5,852,119 km (0.086 R)
• M11: 6,598,164 km (0.099 R)
• M12: 7,705,487 km (0.077 R)
• M13: 8,084,867 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543

Radius: 12.3

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.13 AU - 1.17 AU

Year: 796 Days

Day: 6.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,169,575 km

• M1: 153,039 km (0.075 R)
• M2: 619,934 km (0.117 R)
• M3: 1,196,933 km (0.083 R)
• M4: 1,653,056 km (0.077 R)
• M5: 2,216,143 km (0.098 R)
• M6: 2,788,504 km (0.058 R)
• M7: 3,185,687 km (0.069 R)
• M8: 4,309,466 km (0.09 R)
• M9: 4,827,224 km (0.086 R)
• M10: 5,440,725 km (0.055 R)
• M11: 6,634,217 km (0.084 R)
• M12: 7,215,255 km (0.03 R)
• M13: 8,162,359 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454

Radius: 12.4

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.48 AU - 4.04 AU

Year: 4708 Days

Day: 14.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,169,575 km

• M1: 154,235 km (0.055 R)
• M2: 1,544,448 km (0.094 R)
• M3: 2,584,902 km (0.072 R)
• M4: 3,750,119 km (0.067 R)
• M5: 4,223,148 km (0.107 R)
• M6: 7,153,172 km (0.12 R)
• M7: 9,265,195 km (0.119 R)
• M8: 10,464,371 km (0.108 R)
• M9: 11,231,958 km (0.068 R)
• M10: 11,674,468 km (0.064 R)
• M11: 12,267,025 km (0.07 R)
• M12: 14,946,323 km (0.119 R)
• M13: 20,307,462 km (0.098 R)
• M14: 20,766,428 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.6

Radius: 11.6

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 4.2 AU - 6.16 AU

Year: 7612 Days

Day: 5.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,169,575 km

• M1: 144,212 km (0.085 R)
• M2: 900,878 km (0.059 R)
• M3: 2,044,405 km (0.069 R)
• M4: 3,115,974 km (0.105 R)
• M5: 5,611,865 km (0.12 R)
• M6: 8,488,931 km (0.083 R)
• M7: 9,710,398 km (0.06 R)
• M8: 15,469,916 km (0.076 R)
• M9: 16,819,438 km (0.116 R)
• M10: 21,338,939 km (0.099 R)
• M11: 22,523,455 km (0.1 R)
• M12: 27,152,014 km (0.078 R)
• M13: 31,063,848 km (0.044 R)
• M14: 36,657,013 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 691.2

Radius: 3

Gravity: 76.8 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 6.86 AU - 10.76 AU

Year: 16884 Days

Day: 24 Hours

Environment

Temp: -236 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 68,169,575 km

• M1: 37,250 km (0.102 R)
• M2: 321,635 km (0.082 R)
• M3: 534,812 km (0.081 R)
• M4: 632,949 km (0.114 R)
• M5: 752,926 km (0.048 R)
• M6: 899,083 km (0.111 R)
• M7: 1,089,222 km (0.109 R)
• M8: 1,454,241 km (0.048 R)
• M9: 2,066,994 km (0.034 R)
• M10: 2,668,228 km (0.057 R)
• M11: 2,835,029 km (0.059 R)
• M12: 4,332,654 km (0.071 R)
• M13: 4,802,092 km (0.034 R)
• M14: 5,121,184 km (0.074 R)
• M15: 8,401,416 km (0.099 R)
• M16: 9,784,000 km (0.083 R)
• M17: 10,765,661 km (0.07 R)
• M18: 14,461,477 km (0.1 R)
• M19: 15,274,990 km (0.06 R)
• M20: 16,040,632 km (0.096 R)
• M21: 16,353,890 km (0.044 R)
• M22: 19,095,719 km (0.12 R)
• M23: 20,991,124 km (0.106 R)
• M24: 21,177,972 km (0.068 R)
• M25: 23,206,968 km (0.109 R)
• M26: 23,406,681 km (0.112 R)
• M27: 31,629,179 km (0.05 R)
• M28: 35,446,916 km (0.055 R)
• M29: 35,977,989 km (0.103 R)
• M30: 39,276,771 km (0.12 R)
• M31: 39,845,393 km (0.11 R)
• M32: 40,419,549 km (0.059 R)
• M33: 41,144,950 km (0.115 R)
• M34: 49,375,376 km (0.055 R)
• M35: 51,889,218 km (0.028 R)
• M36: 55,017,011 km (0.099 R)
• M37: 59,007,384 km (0.095 R)
• M38: 61,073,032 km (0.074 R)
• M39: 62,027,616 km (0.091 R)
• M40: 68,169,506 km (0.12 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 16,388 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit