🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.45 AU - 0.61 AU

Year: 249 Days

Day: 31.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,683,356 km

• M1: 35,455 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.5

Radius: 10.9

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.74 AU - 0.82 AU

Year: 445 Days

Day: 7.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,683,356 km

• M1: 143,764 km (0.096 R)
• M2: 496,515 km (0.03 R)
• M3: 977,921 km (0.101 R)
• M4: 1,672,953 km (0.072 R)
• M5: 2,221,379 km (0.114 R)
• M6: 3,143,350 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.4

Radius: 13.8

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.53 AU - 2.21 AU

Year: 1651 Days

Day: 7.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,683,356 km

• M1: 171,738 km (0.089 R)
• M2: 639,830 km (0.106 R)
• M3: 1,468,602 km (0.088 R)
• M4: 2,141,793 km (0.091 R)
• M5: 3,240,739 km (0.057 R)
• M6: 3,693,123 km (0.106 R)
• M7: 4,243,493 km (0.091 R)
• M8: 4,848,467 km (0.076 R)
• M9: 5,488,297 km (0.119 R)
• M10: 6,305,550 km (0.047 R)
• M11: 7,095,726 km (0.041 R)
• M12: 8,812,661 km (0.095 R)
• M13: 9,345,977 km (0.081 R)
• M14: 9,867,625 km (0.04 R)
• M15: 10,933,959 km (0.07 R)
• M16: 13,664,270 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880

Radius: 14.6

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.26 AU - 3.25 AU

Year: 2945 Days

Day: 7.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,683,356 km

• M1: 181,612 km (0.041 R)
• M2: 636,988 km (0.098 R)
• M3: 1,121,086 km (0.092 R)
• M4: 2,727,917 km (0.116 R)
• M5: 4,009,223 km (0.052 R)
• M6: 5,173,394 km (0.115 R)
• M7: 5,957,586 km (0.116 R)
• M8: 6,759,729 km (0.079 R)
• M9: 10,914,960 km (0.056 R)
• M10: 15,510,008 km (0.108 R)
• M11: 17,423,963 km (0.029 R)
• M12: 17,882,780 km (0.101 R)
• M13: 18,586,039 km (0.101 R)
• M14: 19,429,771 km (0.059 R)
• M15: 21,849,068 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.7

Radius: 10

Gravity: 9.67 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.72 AU - 4.88 AU

Year: 5757 Days

Day: 8.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 65,683,356 km

• M1: 124,615 km (0.071 R)
• M2: 535,560 km (0.119 R)
• M3: 1,239,867 km (0.069 R)
• M4: 1,556,416 km (0.118 R)
• M5: 2,127,282 km (0.066 R)
• M6: 2,497,836 km (0.041 R)
• M7: 3,261,832 km (0.106 R)
• M8: 4,098,832 km (0.071 R)
• M9: 4,460,709 km (0.101 R)
• M10: 4,787,730 km (0.116 R)
• M11: 5,614,258 km (0.11 R)
• M12: 6,160,590 km (0.045 R)
• M13: 7,285,416 km (0.116 R)
• M14: 7,936,017 km (0.077 R)
• M15: 11,278,034 km (0.104 R)
• M16: 12,254,010 km (0.097 R)
• M17: 14,139,841 km (0.08 R)
• M18: 14,491,695 km (0.102 R)
• M19: 15,151,871 km (0.072 R)
• M20: 15,894,923 km (0.109 R)
• M21: 17,858,545 km (0.087 R)
• M22: 18,269,939 km (0.048 R)
• M23: 18,898,849 km (0.111 R)
• M24: 19,686,930 km (0.116 R)
• M25: 23,303,160 km (0.052 R)
• M26: 24,292,899 km (0.07 R)
• M27: 29,379,825 km (0.12 R)
• M28: 31,321,007 km (0.047 R)
• M29: 36,435,459 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 813.5

Radius: 7.6

Gravity: 14.08 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 7.73 AU - 8.35 AU

Year: 14720 Days

Day: 25 Hours

Environment

Temp: -220 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 65,683,356 km

• M1: 95,743 km (0.109 R)
• M2: 358,137 km (0.11 R)
• M3: 831,764 km (0.072 R)
• M4: 1,194,988 km (0.049 R)
• M5: 1,830,180 km (0.114 R)
• M6: 2,325,349 km (0.099 R)
• M7: 4,075,644 km (0.092 R)
• M8: 4,884,819 km (0.042 R)
• M9: 5,382,382 km (0.071 R)
• M10: 6,191,706 km (0.086 R)
• M11: 7,035,438 km (0.116 R)
• M12: 8,642,269 km (0.115 R)
• M13: 10,770,448 km (0.08 R)
• M14: 11,006,813 km (0.11 R)
• M15: 11,924,297 km (0.113 R)
• M16: 16,416,870 km (0.082 R)
• M17: 17,288,278 km (0.12 R)
• M18: 17,858,545 km (0.118 R)
• M19: 19,296,031 km (0.117 R)
• M20: 21,923,269 km (0.105 R)
• M21: 27,215,144 km (0.119 R)
• M22: 29,000,295 km (0.069 R)
• M23: 29,689,343 km (0.111 R)
• M24: 32,555,339 km (0.101 R)
• M25: 39,949,214 km (0.078 R)
• M26: 46,021,541 km (0.109 R)
• M27: 51,501,610 km (0.113 R)
• M28: 52,342,500 km (0.075 R)
• M29: 54,224,591 km (0.06 R)
• M30: 55,094,801 km (0.083 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: 207 - 17,809 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit