🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.61 AU - 0.63 AU

Year: 320 Days

Day: 31.2 Hours

Environment

Temp: -122 °C

Axial Tilt: 49.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887

Radius: 11.8

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.71 AU - 0.95 AU

Year: 496 Days

Day: 8.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 48,376,049 km

• M1: 146,756 km (0.062 R)
• M2: 519,703 km (0.096 R)
• M3: 989,590 km (0.1 R)
• M4: 1,508,246 km (0.111 R)
• M5: 1,948,811 km (0.12 R)
• M6: 2,386,236 km (0.064 R)
• M7: 3,263,178 km (0.106 R)
• M8: 3,817,139 km (0.105 R)
• M9: 4,539,697 km (0.03 R)
• M10: 5,065,085 km (0.102 R)
• M11: 6,391,868 km (0.116 R)
• M12: 6,848,291 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.8

Radius: 14.8

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.55 AU - 2.43 AU

Year: 1842 Days

Day: 8.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,376,049 km

• M1: 184,604 km (0.09 R)
• M2: 736,321 km (0.067 R)
• M3: 1,267,992 km (0.091 R)
• M4: 1,898,995 km (0.107 R)
• M5: 2,489,309 km (0.109 R)
• M6: 3,160,853 km (0.03 R)
• M7: 3,842,122 km (0.085 R)
• M8: 4,411,940 km (0.117 R)
• M9: 5,019,308 km (0.117 R)
• M10: 5,805,145 km (0.088 R)
• M11: 6,649,177 km (0.102 R)
• M12: 7,112,930 km (0.025 R)
• M13: 7,773,554 km (0.117 R)
• M14: 8,368,355 km (0.064 R)
• M15: 9,678,982 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.2

Radius: 10.6

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.31 AU - 2.35 AU

Year: 2333 Days

Day: 8.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,376,049 km

• M1: 131,796 km (0.118 R)
• M2: 830,567 km (0.086 R)
• M3: 1,419,684 km (0.072 R)
• M4: 2,109,330 km (0.109 R)
• M5: 2,856,272 km (0.081 R)
• M6: 5,968,506 km (0.056 R)
• M7: 6,806,105 km (0.113 R)
• M8: 8,300,587 km (0.108 R)
• M9: 9,108,266 km (0.061 R)
• M10: 9,861,641 km (0.068 R)
• M11: 11,107,044 km (0.064 R)
• M12: 13,687,158 km (0.079 R)
• M13: 14,952,906 km (0.105 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 211.9

Radius: 4.3

Gravity: 11.46 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 6.3 AU - 7.1 AU

Year: 11377 Days

Day: 21.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,376,049 km

• M1: 53,406 km (0.117 R)
• M2: 488,287 km (0.045 R)
• M3: 803,191 km (0.108 R)
• M4: 996,471 km (0.091 R)
• M5: 1,264,401 km (0.076 R)
• M6: 1,672,055 km (0.075 R)
• M7: 2,004,462 km (0.073 R)
• M8: 2,294,233 km (0.084 R)
• M9: 3,246,573 km (0.027 R)
• M10: 4,178,269 km (0.059 R)
• M11: 4,436,474 km (0.072 R)
• M12: 4,705,302 km (0.081 R)
• M13: 5,070,919 km (0.076 R)
• M14: 6,620,603 km (0.097 R)
• M15: 12,152,882 km (0.075 R)
• M16: 12,678,868 km (0.087 R)
• M17: 13,719,770 km (0.098 R)
• M18: 13,945,962 km (0.076 R)
• M19: 18,455,141 km (0.065 R)
• M20: 18,939,390 km (0.114 R)
• M21: 21,110,952 km (0.115 R)
• M22: 31,950,515 km (0.044 R)
• M23: 33,152,683 km (0.086 R)
• M24: 33,560,038 km (0.065 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 770.4

Radius: 4.2

Gravity: 43.67 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 7.65 AU - 10.95 AU

Year: 18605 Days

Day: 24.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 48,376,049 km

• M1: 52,210 km (0.104 R)
• M2: 185,651 km (0.096 R)
• M3: 384,616 km (0.089 R)
• M4: 628,311 km (0.115 R)
• M5: 770,130 km (0.091 R)
• M6: 910,602 km (0.087 R)
• M7: 1,080,994 km (0.07 R)
• M8: 1,568,534 km (0.1 R)
• M9: 2,385,039 km (0.031 R)
• M10: 2,662,842 km (0.057 R)
• M11: 3,597,230 km (0.061 R)
• M12: 4,910,999 km (0.084 R)
• M13: 5,516,122 km (0.025 R)
• M14: 5,796,020 km (0.104 R)
• M15: 6,340,706 km (0.079 R)
• M16: 8,595,744 km (0.118 R)
• M17: 9,247,093 km (0.072 R)
• M18: 9,641,882 km (0.101 R)
• M19: 10,465,119 km (0.111 R)
• M20: 11,720,844 km (0.098 R)
• M21: 13,003,795 km (0.081 R)
• M22: 14,678,543 km (0.09 R)
• M23: 19,073,878 km (0.114 R)
• M24: 19,620,808 km (0.033 R)
• M25: 21,913,246 km (0.037 R)
• M26: 25,677,128 km (0.063 R)
• M27: 25,898,084 km (0.09 R)
• M28: 27,135,857 km (0.117 R)
• M29: 29,850,161 km (0.027 R)
• M30: 31,968,915 km (0.037 R)
• M31: 33,655,183 km (0.05 R)
• M32: 41,599,129 km (0.065 R)
• M33: 41,751,270 km (0.08 R)
• M34: 47,149,509 km (0.095 R)
• M35: 55,535,218 km (0.057 R)
• M36: 61,054,332 km (0.12 R)
• M37: 69,464,425 km (0.119 R)
• M38: 72,283,896 km (0.049 R)
• M39: 73,166,523 km (0.11 R)
• M40: 75,404,657 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 180.4

Radius: 5.8

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 9.49 AU - 9.87 AU

Year: 19757 Days

Day: 17.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,376,049 km

• M1: 84,822 km (0.095 R)
• M2: 1,143,825 km (0.076 R)
• M3: 1,402,630 km (0.12 R)
• M4: 2,382,645 km (0.114 R)
• M5: 4,622,125 km (0.113 R)
• M6: 7,142,102 km (0.113 R)
• M7: 8,374,638 km (0.103 R)
• M8: 9,496,772 km (0.112 R)
• M9: 10,043,253 km (0.083 R)
• M10: 21,782,647 km (0.057 R)
• M11: 30,689,106 km (0.113 R)
• M12: 32,765,973 km (0.111 R)
• M13: 33,667,749 km (0.062 R)
• M14: 34,355,001 km (0.091 R)
• M15: 46,375,490 km (0.117 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: 508 - 13,698 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit