🌌 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: 611.6

Radius: 8.4

Gravity: 8.67 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.7 AU - 0.8 AU

Year: 448 Days

Day: 7.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,745,952 km

• M1: 104,719 km (0.111 R)
• M2: 418,425 km (0.06 R)
• M3: 845,527 km (0.078 R)
• M4: 1,383,780 km (0.091 R)
• M5: 1,848,132 km (0.115 R)
• M6: 2,546,904 km (0.093 R)
• M7: 2,840,116 km (0.112 R)
• M8: 3,110,888 km (0.102 R)
• M9: 3,543,674 km (0.095 R)
• M10: 4,123,665 km (0.114 R)
• M11: 4,544,484 km (0.112 R)
• M12: 4,947,351 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.6

Radius: 13.3

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.75 AU - 0.77 AU

Year: 457 Days

Day: 5.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,745,952 km

• M1: 165,455 km (0.115 R)
• M2: 589,266 km (0.11 R)
• M3: 1,019,809 km (0.096 R)
• M4: 1,464,563 km (0.069 R)
• M5: 1,910,365 km (0.105 R)
• M6: 2,888,735 km (0.083 R)
• M7: 3,567,610 km (0.084 R)
• M8: 4,022,088 km (0.12 R)
• M9: 4,501,400 km (0.117 R)
• M10: 5,124,026 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.1

Radius: 11.8

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.36 AU - 1.68 AU

Year: 1294 Days

Day: 7.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,745,952 km

• M1: 146,756 km (0.113 R)
• M2: 564,882 km (0.078 R)
• M3: 937,679 km (0.096 R)
• M4: 1,393,205 km (0.12 R)
• M5: 1,863,092 km (0.056 R)
• M6: 2,390,275 km (0.116 R)
• M7: 2,876,917 km (0.118 R)
• M8: 3,398,415 km (0.082 R)
• M9: 4,016,703 km (0.1 R)
• M10: 4,389,950 km (0.112 R)
• M11: 5,003,450 km (0.101 R)
• M12: 5,673,350 km (0.086 R)
• M13: 6,075,918 km (0.112 R)
• M14: 6,642,594 km (0.069 R)
• M15: 10,678,595 km (0.044 R)
• M16: 11,754,054 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.4

Radius: 13.1

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.64 AU - 1.64 AU

Year: 1450 Days

Day: 11.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,745,952 km

• M1: 169,794 km (0.054 R)
• M2: 584,928 km (0.091 R)
• M3: 1,000,361 km (0.1 R)
• M4: 1,557,912 km (0.11 R)
• M5: 1,974,991 km (0.065 R)
• M6: 3,568,956 km (0.057 R)
• M7: 4,239,753 km (0.116 R)
• M8: 5,362,934 km (0.106 R)
• M9: 6,091,775 km (0.11 R)
• M10: 7,444,588 km (0.068 R)
• M11: 8,988,738 km (0.087 R)
• M12: 9,836,658 km (0.076 R)
• M13: 10,483,370 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.8

Radius: 11.7

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.23 AU - 2.49 AU

Year: 2503 Days

Day: 10.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,745,952 km

• M1: 145,559 km (0.105 R)
• M2: 739,761 km (0.105 R)
• M3: 1,245,103 km (0.088 R)
• M4: 1,672,205 km (0.07 R)
• M5: 2,066,096 km (0.093 R)
• M6: 2,507,709 km (0.081 R)
• M7: 2,929,126 km (0.097 R)
• M8: 3,856,633 km (0.084 R)
• M9: 4,782,345 km (0.061 R)
• M10: 5,588,827 km (0.075 R)
• M11: 8,977,667 km (0.063 R)
• M12: 9,934,944 km (0.084 R)
• M13: 11,539,082 km (0.09 R)
• M14: 14,114,260 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.4

Radius: 13.3

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 4.23 AU - 5.21 AU

Year: 7078 Days

Day: 5.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,745,952 km

• M1: 169,195 km (0.067 R)
• M2: 782,546 km (0.118 R)
• M3: 1,227,600 km (0.07 R)
• M4: 2,028,996 km (0.083 R)
• M5: 3,750,419 km (0.103 R)
• M6: 4,582,781 km (0.096 R)
• M7: 5,471,692 km (0.106 R)
• M8: 6,058,415 km (0.094 R)
• M9: 7,167,384 km (0.114 R)
• M10: 7,591,942 km (0.108 R)
• M11: 8,365,214 km (0.115 R)
• M12: 9,280,454 km (0.099 R)
• M13: 12,874,243 km (0.055 R)
• M14: 14,762,916 km (0.099 R)
• M15: 28,942,401 km (0.119 R)
• M16: 30,423,719 km (0.062 R)
• M17: 31,234,240 km (0.108 R)
• M18: 33,752,122 km (0.034 R)
• M19: 34,402,125 km (0.045 R)
• M20: 37,894,637 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 292.1

Radius: 3.7

Gravity: 21.34 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 8.66 AU - 11.1 AU

Year: 21436 Days

Day: 23.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,745,952 km

• M1: 141,968 km (0.089 R)
• M2: 320,139 km (0.117 R)
• M3: 756,367 km (0.115 R)
• M4: 1,123,929 km (0.097 R)
• M5: 2,704,879 km (0.092 R)
• M6: 4,268,177 km (0.091 R)
• M7: 7,764,877 km (0.096 R)
• M8: 8,619,979 km (0.107 R)
• M9: 11,800,579 km (0.118 R)
• M10: 21,770,380 km (0.093 R)
• M11: 24,828,609 km (0.084 R)
• M12: 25,942,664 km (0.109 R)
• M13: 37,113,885 km (0.055 R)
• M14: 49,194,063 km (0.088 R)
• M15: 54,240,747 km (0.027 R)
• M16: 58,908,350 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423.7

Radius: 6.7

Gravity: 9.44 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 7.88 AU - 13 AU

Year: 23284 Days

Day: 20.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 71,745,952 km

• M1: 83,326 km (0.115 R)
• M2: 325,226 km (0.065 R)
• M3: 785,688 km (0.107 R)
• M4: 1,189,602 km (0.11 R)
• M5: 1,447,359 km (0.059 R)
• M6: 2,057,120 km (0.11 R)
• M7: 2,301,862 km (0.055 R)
• M8: 2,777,434 km (0.088 R)
• M9: 3,511,062 km (0.108 R)
• M10: 4,269,224 km (0.051 R)
• M11: 4,773,668 km (0.104 R)
• M12: 5,623,534 km (0.112 R)
• M13: 9,814,817 km (0.107 R)
• M14: 13,993,385 km (0.113 R)
• M15: 14,652,214 km (0.075 R)
• M16: 16,110,494 km (0.103 R)
• M17: 16,834,099 km (0.107 R)
• M18: 17,328,370 km (0.098 R)
• M19: 20,037,438 km (0.114 R)
• M20: 20,779,892 km (0.088 R)
• M21: 21,253,070 km (0.102 R)
• M22: 28,191,120 km (0.104 R)
• M23: 30,316,008 km (0.09 R)
• M24: 32,166,534 km (0.057 R)
• M25: 32,672,325 km (0.118 R)
• M26: 33,700,062 km (0.074 R)
• M27: 35,550,139 km (0.12 R)
• M28: 37,050,456 km (0.115 R)
• M29: 37,606,362 km (0.088 R)
• M30: 47,599,649 km (0.078 R)
• M31: 56,617,259 km (0.084 R)
• M32: 57,354,627 km (0.088 R)
• M33: 63,287,978 km (0.111 R)
• M34: 70,251,609 km (0.107 R)
• M35: 71,531,119 km (0.071 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 14,494 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit