🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.5

Radius: 13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.72 AU - 0.78 AU

Year: 419 Days

Day: 6.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 24,794,052 km

• M1: 162,014 km (0.117 R)
• M2: 639,680 km (0.091 R)
• M3: 1,161,179 km (0.11 R)
• M4: 1,608,177 km (0.114 R)
• M5: 2,022,563 km (0.083 R)
• M6: 2,599,413 km (0.087 R)
• M7: 3,112,085 km (0.086 R)
• M8: 3,586,908 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.2

Radius: 12.8

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.67 AU - 0.97 AU

Year: 479 Days

Day: 9.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 24,794,052 km

• M1: 159,172 km (0.045 R)
• M2: 973,284 km (0.059 R)
• M3: 1,826,889 km (0.026 R)
• M4: 2,599,562 km (0.115 R)
• M5: 3,426,390 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.2

Radius: 14.9

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.68 AU - 0.98 AU

Year: 488 Days

Day: 14.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 24,794,052 km

• M1: 188,344 km (0.071 R)
• M2: 657,632 km (0.078 R)
• M3: 1,409,062 km (0.072 R)
• M4: 1,916,199 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.3

Radius: 14

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.88 AU - 1.42 AU

Year: 796 Days

Day: 9.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 24,794,052 km

• M1: 174,132 km (0.053 R)
• M2: 806,632 km (0.03 R)
• M3: 1,318,256 km (0.093 R)
• M4: 1,794,576 km (0.101 R)
• M5: 2,378,157 km (0.11 R)
• M6: 3,789,763 km (0.103 R)
• M7: 6,310,337 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.1

Radius: 8.4

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.12 AU - 1.54 AU

Year: 990 Days

Day: 8.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,794,052 km

• M1: 104,419 km (0.079 R)
• M2: 366,066 km (0.086 R)
• M3: 660,325 km (0.08 R)
• M4: 953,686 km (0.062 R)
• M5: 1,925,025 km (0.102 R)
• M6: 2,757,986 km (0.073 R)
• M7: 3,458,404 km (0.107 R)
• M8: 3,787,519 km (0.039 R)
• M9: 5,038,606 km (0.066 R)
• M10: 5,302,945 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.2

Radius: 9.8

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.18 AU - 5.66 AU

Year: 7046 Days

Day: 5.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 24,794,052 km

• M1: 122,072 km (0.091 R)
• M2: 472,430 km (0.073 R)
• M3: 1,116,898 km (0.109 R)
• M4: 1,527,693 km (0.118 R)
• M5: 1,993,092 km (0.062 R)
• M6: 2,829,195 km (0.11 R)
• M7: 3,210,520 km (0.096 R)
• M8: 3,580,924 km (0.115 R)
• M9: 4,811,068 km (0.044 R)
• M10: 5,122,381 km (0.108 R)
• M11: 6,303,157 km (0.082 R)
• M12: 8,401,566 km (0.119 R)
• M13: 10,688,469 km (0.107 R)
• M14: 11,171,520 km (0.033 R)
• M15: 15,761,781 km (0.101 R)
• M16: 16,072,945 km (0.063 R)
• M17: 25,851,559 km (0.045 R)
• M18: 28,523,527 km (0.105 R)
• M19: 32,969,875 km (0.117 R)
• M20: 33,582,029 km (0.117 R)
• M21: 34,201,664 km (0.073 R)
• M22: 34,723,760 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 238.2

Radius: 6.3

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.36 AU - 8.06 AU

Year: 11223 Days

Day: 19 Hours

Environment

Temp: -217 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 24,794,052 km

• M1: 78,389 km (0.109 R)
• M2: 312,061 km (0.075 R)
• M3: 586,723 km (0.073 R)
• M4: 884,273 km (0.1 R)
• M5: 2,455,649 km (0.068 R)
• M6: 3,995,759 km (0.108 R)
• M7: 4,377,982 km (0.065 R)
• M8: 4,812,115 km (0.118 R)
• M9: 5,766,250 km (0.12 R)
• M10: 7,165,439 km (0.111 R)
• M11: 7,538,386 km (0.114 R)
• M12: 9,644,874 km (0.103 R)
• M13: 10,332,276 km (0.102 R)
• M14: 11,753,157 km (0.094 R)
• M15: 13,692,394 km (0.089 R)
• M16: 14,917,002 km (0.058 R)
• M17: 18,885,684 km (0.106 R)
• M18: 20,697,613 km (0.112 R)
• M19: 20,922,459 km (0.094 R)
• M20: 21,300,942 km (0.117 R)
• M21: 22,228,000 km (0.115 R)
• M22: 26,469,548 km (0.104 R)
• M23: 32,719,298 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.7

Radius: 7.3

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 8.01 AU - 8.33 AU

Year: 15078 Days

Day: 15.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 24,794,052 km

• M1: 90,806 km (0.097 R)
• M2: 415,433 km (0.117 R)
• M3: 930,948 km (0.118 R)
• M4: 1,311,824 km (0.115 R)
• M5: 1,719,628 km (0.047 R)
• M6: 2,238,433 km (0.071 R)
• M7: 2,738,239 km (0.099 R)
• M8: 4,641,573 km (0.086 R)
• M9: 5,507,146 km (0.113 R)
• M10: 8,636,883 km (0.059 R)
• M11: 11,412,672 km (0.077 R)
• M12: 11,678,956 km (0.085 R)
• M13: 12,881,723 km (0.103 R)
• M14: 13,962,119 km (0.084 R)
• M15: 14,266,850 km (0.06 R)
• M16: 15,101,606 km (0.117 R)
• M17: 16,023,727 km (0.067 R)
• M18: 20,543,528 km (0.054 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: 324 - 14,452 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit