🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.8

Radius: 14

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.72 AU - 0.76 AU

Year: 424 Days

Day: 12.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 41,546,360 km

• M1: 174,282 km (0.088 R)
• M2: 711,936 km (0.105 R)
• M3: 1,159,832 km (0.07 R)
• M4: 1,598,752 km (0.119 R)
• M5: 2,138,053 km (0.107 R)
• M6: 2,757,837 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.7

Radius: 12.1

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.03 AU - 1.09 AU

Year: 728 Days

Day: 14 Hours

Environment

Temp: -182 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,546,360 km

• M1: 150,495 km (0.079 R)
• M2: 719,117 km (0.073 R)
• M3: 1,096,852 km (0.104 R)
• M4: 1,514,230 km (0.102 R)
• M5: 1,946,567 km (0.072 R)
• M6: 2,393,716 km (0.085 R)
• M7: 2,832,935 km (0.103 R)
• M8: 4,012,963 km (0.095 R)
• M9: 4,471,929 km (0.082 R)
• M10: 5,095,004 km (0.105 R)
• M11: 5,634,604 km (0.106 R)
• M12: 6,027,448 km (0.035 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494

Radius: 12.9

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.96 AU - 1.38 AU

Year: 844 Days

Day: 14.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,546,360 km

• M1: 160,369 km (0.052 R)
• M2: 656,435 km (0.1 R)
• M3: 1,162,076 km (0.111 R)
• M4: 1,584,690 km (0.054 R)
• M5: 2,397,904 km (0.097 R)
• M6: 3,276,493 km (0.101 R)
• M7: 4,297,049 km (0.056 R)
• M8: 5,300,701 km (0.102 R)
• M9: 5,800,807 km (0.071 R)
• M10: 7,004,322 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.2

Radius: 9

Gravity: 9.2 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.45 AU - 1.47 AU

Year: 1176 Days

Day: 9.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,546,360 km

• M1: 111,899 km (0.09 R)
• M2: 419,024 km (0.109 R)
• M3: 730,187 km (0.105 R)
• M4: 1,037,611 km (0.067 R)
• M5: 1,676,244 km (0.057 R)
• M6: 2,094,520 km (0.074 R)
• M7: 2,657,008 km (0.117 R)
• M8: 3,376,424 km (0.05 R)
• M9: 3,814,596 km (0.101 R)
• M10: 4,150,443 km (0.055 R)
• M11: 4,616,740 km (0.109 R)
• M12: 5,077,801 km (0.119 R)
• M13: 5,611,566 km (0.084 R)
• M14: 6,002,764 km (0.086 R)
• M15: 6,599,809 km (0.095 R)
• M16: 8,321,382 km (0.072 R)
• M17: 8,601,878 km (0.036 R)
• M18: 9,603,136 km (0.102 R)
• M19: 10,549,492 km (0.047 R)
• M20: 10,878,308 km (0.097 R)
• M21: 11,384,548 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.7

Radius: 12.2

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.36 AU - 2.16 AU

Year: 1557 Days

Day: 7.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,546,360 km

• M1: 152,141 km (0.105 R)
• M2: 640,728 km (0.106 R)
• M3: 1,502,262 km (0.092 R)
• M4: 2,222,875 km (0.071 R)
• M5: 3,658,566 km (0.114 R)
• M6: 5,253,728 km (0.088 R)
• M7: 6,067,241 km (0.044 R)
• M8: 6,962,734 km (0.063 R)
• M9: 8,570,761 km (0.086 R)
• M10: 9,137,737 km (0.114 R)
• M11: 12,927,051 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.1

Radius: 8.6

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.32 AU - 2.96 AU

Year: 2860 Days

Day: 10.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,546,360 km

• M1: 116,836 km (0.08 R)
• M2: 429,495 km (0.094 R)
• M3: 1,148,762 km (0.027 R)
• M4: 1,582,297 km (0.103 R)
• M5: 1,850,077 km (0.059 R)
• M6: 3,071,693 km (0.065 R)
• M7: 4,176,174 km (0.093 R)
• M8: 6,096,412 km (0.111 R)
• M9: 6,996,244 km (0.087 R)
• M10: 7,822,173 km (0.092 R)
• M11: 8,575,698 km (0.041 R)
• M12: 8,848,864 km (0.076 R)
• M13: 12,122,364 km (0.108 R)
• M14: 14,770,247 km (0.065 R)
• M15: 16,073,693 km (0.098 R)
• M16: 17,181,016 km (0.117 R)
• M17: 18,792,933 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.9

Radius: 12.1

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.27 AU - 3.23 AU

Year: 3041 Days

Day: 5.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 41,546,360 km

• M1: 150,495 km (0.098 R)
• M2: 625,170 km (0.106 R)
• M3: 1,185,713 km (0.093 R)
• M4: 1,721,871 km (0.086 R)
• M5: 2,251,747 km (0.099 R)
• M6: 2,701,588 km (0.045 R)
• M7: 3,117,021 km (0.039 R)
• M8: 3,731,868 km (0.103 R)
• M9: 4,230,478 km (0.109 R)
• M10: 4,857,742 km (0.113 R)
• M11: 5,453,740 km (0.066 R)
• M12: 6,503,468 km (0.089 R)
• M13: 6,926,830 km (0.107 R)
• M14: 9,393,998 km (0.071 R)
• M15: 10,571,334 km (0.113 R)
• M16: 11,536,090 km (0.112 R)
• M17: 12,000,741 km (0.082 R)
• M18: 12,599,133 km (0.092 R)
• M19: 13,898,839 km (0.089 R)
• M20: 14,336,712 km (0.048 R)
• M21: 14,919,545 km (0.1 R)
• M22: 15,332,435 km (0.116 R)
• M23: 16,085,062 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234

Radius: 7

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 6.32 AU - 8.76 AU

Year: 13807 Days

Day: 17 Hours

Environment

Temp: -237 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 41,546,360 km

• M1: 87,814 km (0.116 R)
• M2: 358,137 km (0.096 R)
• M3: 949,348 km (0.088 R)
• M4: 1,819,260 km (0.087 R)
• M5: 2,661,645 km (0.036 R)
• M6: 3,007,665 km (0.116 R)
• M7: 4,255,611 km (0.088 R)
• M8: 4,530,272 km (0.103 R)
• M9: 4,934,935 km (0.116 R)
• M10: 5,458,228 km (0.078 R)
• M11: 5,882,936 km (0.119 R)
• M12: 7,805,568 km (0.036 R)
• M13: 8,344,719 km (0.072 R)
• M14: 8,732,477 km (0.079 R)
• M15: 11,684,342 km (0.084 R)
• M16: 19,162,440 km (0.057 R)
• M17: 25,728,440 km (0.117 R)
• M18: 30,009,632 km (0.081 R)
• M19: 33,113,489 km (0.093 R)
• M20: 33,975,920 km (0.051 R)
• M21: 36,882,308 km (0.116 R)
• M22: 38,160,322 km (0.088 R)
• M23: 41,050,853 km (0.099 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 18,500 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit