🌌 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 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.9

Radius: 9.2

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.44 AU - 0.74 AU

Year: 307 Days

Day: 6.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,646,531 km

• M1: 114,442 km (0.076 R)
• M2: 427,252 km (0.071 R)
• M3: 757,414 km (0.057 R)
• M4: 1,110,166 km (0.099 R)
• M5: 1,414,448 km (0.063 R)
• M6: 1,995,785 km (0.108 R)
• M7: 2,600,909 km (0.047 R)
• M8: 3,515,999 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.5

Radius: 12.1

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.51 AU - 0.75 AU

Year: 339 Days

Day: 12.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,646,531 km

• M1: 150,645 km (0.106 R)
• M2: 666,907 km (0.066 R)
• M3: 1,094,009 km (0.075 R)
• M4: 1,491,491 km (0.116 R)
• M5: 2,100,952 km (0.073 R)
• M6: 2,535,235 km (0.115 R)
• M7: 3,061,969 km (0.106 R)
• M8: 3,673,226 km (0.101 R)
• M9: 4,160,616 km (0.119 R)
• M10: 5,094,855 km (0.085 R)
• M11: 5,554,569 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.9

Radius: 11.8

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.98 AU - 1.22 AU

Year: 782 Days

Day: 8.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,646,531 km

• M1: 146,756 km (0.046 R)
• M2: 590,014 km (0.087 R)
• M3: 985,401 km (0.097 R)
• M4: 2,264,164 km (0.07 R)
• M5: 2,737,791 km (0.111 R)
• M6: 3,104,754 km (0.061 R)
• M7: 3,604,112 km (0.096 R)
• M8: 4,396,083 km (0.111 R)
• M9: 4,965,303 km (0.111 R)
• M10: 5,399,137 km (0.069 R)
• M11: 6,142,788 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.9

Radius: 8.7

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.3 AU - 3.78 AU

Year: 3595 Days

Day: 10.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,646,531 km

• M1: 110,104 km (0.056 R)
• M2: 1,189,004 km (0.097 R)
• M3: 2,046,798 km (0.104 R)
• M4: 3,443,743 km (0.107 R)
• M5: 4,415,531 km (0.101 R)
• M6: 4,829,318 km (0.106 R)
• M7: 10,891,772 km (0.057 R)
• M8: 11,365,698 km (0.049 R)
• M9: 14,082,994 km (0.096 R)
• M10: 15,125,990 km (0.096 R)
• M11: 15,916,166 km (0.091 R)
• M12: 16,372,589 km (0.091 R)
• M13: 18,066,636 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.5

Radius: 12.2

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.1 AU - 3.14 AU

Year: 3738 Days

Day: 9.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,646,531 km

• M1: 154,235 km (0.112 R)
• M2: 801,246 km (0.076 R)
• M3: 1,460,823 km (0.067 R)
• M4: 1,841,849 km (0.068 R)
• M5: 2,691,565 km (0.066 R)
• M6: 3,412,627 km (0.086 R)
• M7: 5,052,967 km (0.093 R)
• M8: 5,458,228 km (0.102 R)
• M9: 6,334,423 km (0.079 R)
• M10: 7,002,078 km (0.067 R)
• M11: 7,751,264 km (0.091 R)
• M12: 8,366,111 km (0.044 R)
• M13: 10,712,105 km (0.08 R)
• M14: 12,036,495 km (0.063 R)
• M15: 13,263,347 km (0.063 R)
• M16: 13,881,037 km (0.06 R)
• M17: 19,078,216 km (0.096 R)
• M18: 19,932,420 km (0.052 R)
• M19: 20,949,536 km (0.114 R)
• M20: 21,576,202 km (0.056 R)
• M21: 23,160,742 km (0.057 R)
• M22: 24,057,133 km (0.106 R)
• M23: 25,839,591 km (0.096 R)
• M24: 27,708,667 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.6

Radius: 13.5

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.54 AU - 5.34 AU

Year: 6345 Days

Day: 11.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,646,531 km

• M1: 168,298 km (0.113 R)
• M2: 716,574 km (0.034 R)
• M3: 2,827,101 km (0.107 R)
• M4: 8,780,797 km (0.094 R)
• M5: 9,599,247 km (0.11 R)
• M6: 10,602,749 km (0.049 R)
• M7: 12,818,144 km (0.112 R)
• M8: 14,812,134 km (0.078 R)
• M9: 19,204,627 km (0.064 R)
• M10: 21,806,882 km (0.097 R)
• M11: 23,230,605 km (0.1 R)
• M12: 28,836,336 km (0.1 R)
• M13: 30,734,883 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.2

Radius: 13.3

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.79 AU - 5.77 AU

Year: 7088 Days

Day: 12.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,646,531 km

• M1: 169,046 km (0.108 R)
• M2: 626,217 km (0.104 R)
• M3: 1,096,552 km (0.115 R)
• M4: 1,676,394 km (0.116 R)
• M5: 2,386,535 km (0.096 R)
• M6: 2,836,525 km (0.118 R)
• M7: 3,343,512 km (0.062 R)
• M8: 4,721,758 km (0.093 R)
• M9: 6,172,259 km (0.098 R)
• M10: 7,551,401 km (0.045 R)
• M11: 8,263,487 km (0.119 R)
• M12: 9,525,345 km (0.098 R)
• M13: 11,485,825 km (0.046 R)
• M14: 12,472,872 km (0.077 R)
• M15: 14,226,458 km (0.059 R)
• M16: 14,713,998 km (0.042 R)
• M17: 15,671,275 km (0.032 R)
• M18: 16,244,234 km (0.116 R)
• M19: 18,217,729 km (0.1 R)
• M20: 20,162,951 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462.8

Radius: 14.2

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 4.01 AU - 5.61 AU

Year: 7155 Days

Day: 6.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,646,531 km

• M1: 176,675 km (0.081 R)
• M2: 1,154,596 km (0.096 R)
• M3: 2,013,139 km (0.108 R)
• M4: 2,466,570 km (0.115 R)
• M5: 3,901,213 km (0.089 R)
• M6: 6,808,797 km (0.061 R)
• M7: 10,607,985 km (0.052 R)
• M8: 13,466,352 km (0.093 R)
• M9: 18,766,155 km (0.067 R)
• M10: 27,011,691 km (0.04 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 424 - 15,872 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit