🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.7

Radius: 11.8

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.5 AU - 0.78 AU

Year: 353 Days

Day: 10.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 73.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,038,275 km

• M1: 149,299 km (0.118 R)
• M2: 561,441 km (0.107 R)
• M3: 939,774 km (0.117 R)
• M4: 1,404,126 km (0.092 R)
• M5: 1,806,993 km (0.1 R)
• M6: 2,218,985 km (0.079 R)
• M7: 3,030,404 km (0.059 R)
• M8: 3,499,693 km (0.063 R)
• M9: 4,308,269 km (0.09 R)
• M10: 4,978,468 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.3

Radius: 8.9

Gravity: 8.15 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.69 AU - 0.85 AU

Year: 466 Days

Day: 14.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,038,275 km

• M1: 110,702 km (0.119 R)
• M2: 433,535 km (0.119 R)
• M3: 739,313 km (0.096 R)
• M4: 1,041,500 km (0.086 R)
• M5: 1,612,515 km (0.106 R)
• M6: 1,990,250 km (0.104 R)
• M7: 2,464,775 km (0.034 R)
• M8: 2,914,765 km (0.116 R)
• M9: 3,742,939 km (0.119 R)
• M10: 4,482,850 km (0.119 R)
• M11: 4,795,659 km (0.085 R)
• M12: 5,235,626 km (0.105 R)
• M13: 5,566,238 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.5

Radius: 9.4

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.8 AU - 1.12 AU

Year: 649 Days

Day: 8.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,038,275 km

• M1: 116,836 km (0.108 R)
• M2: 574,456 km (0.08 R)
• M3: 923,168 km (0.112 R)
• M4: 1,331,271 km (0.115 R)
• M5: 1,884,185 km (0.096 R)
• M6: 2,225,568 km (0.105 R)
• M7: 2,551,092 km (0.096 R)
• M8: 2,899,506 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.7

Radius: 13

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.03 AU - 1.25 AU

Year: 840 Days

Day: 10.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,038,275 km

• M1: 161,715 km (0.073 R)
• M2: 595,998 km (0.055 R)
• M3: 1,223,561 km (0.119 R)
• M4: 1,639,742 km (0.093 R)
• M5: 2,378,606 km (0.1 R)
• M6: 2,856,272 km (0.09 R)
• M7: 3,480,993 km (0.098 R)
• M8: 4,054,252 km (0.098 R)
• M9: 5,005,545 km (0.085 R)
• M10: 5,877,401 km (0.103 R)
• M11: 7,255,946 km (0.114 R)
• M12: 7,703,991 km (0.046 R)
• M13: 8,682,361 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.6

Radius: 10

Gravity: 9 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.28 AU - 2.12 AU

Year: 1530 Days

Day: 8.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,038,275 km

• M1: 127,158 km (0.086 R)
• M2: 451,187 km (0.066 R)
• M3: 762,800 km (0.095 R)
• M4: 1,640,939 km (0.047 R)
• M5: 2,366,489 km (0.102 R)
• M6: 2,882,153 km (0.092 R)
• M7: 3,245,376 km (0.047 R)
• M8: 3,571,350 km (0.119 R)
• M9: 3,919,315 km (0.112 R)
• M10: 4,623,173 km (0.055 R)
• M11: 5,276,018 km (0.076 R)
• M12: 5,659,287 km (0.069 R)
• M13: 6,085,492 km (0.091 R)
• M14: 6,869,833 km (0.085 R)
• M15: 7,300,376 km (0.083 R)
• M16: 7,863,612 km (0.111 R)
• M17: 8,334,845 km (0.075 R)
• M18: 8,919,025 km (0.103 R)
• M19: 12,414,080 km (0.115 R)
• M20: 13,381,679 km (0.069 R)
• M21: 14,268,944 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.7

Radius: 9.4

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.38 AU - 2.44 AU

Year: 2582 Days

Day: 6.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,038,275 km

• M1: 117,285 km (0.099 R)
• M2: 604,974 km (0.119 R)
• M3: 992,881 km (0.085 R)
• M4: 1,287,589 km (0.093 R)
• M5: 1,683,574 km (0.05 R)
• M6: 2,169,917 km (0.117 R)
• M7: 3,079,771 km (0.106 R)
• M8: 3,578,531 km (0.056 R)
• M9: 6,338,761 km (0.08 R)
• M10: 6,658,751 km (0.105 R)
• M11: 6,967,072 km (0.079 R)
• M12: 7,565,015 km (0.092 R)
• M13: 8,837,195 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 311.8

Radius: 7.3

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 6.87 AU - 8.19 AU

Year: 14263 Days

Day: 22.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,038,275 km

• M1: 91,554 km (0.115 R)
• M2: 475,123 km (0.112 R)
• M3: 1,263,653 km (0.051 R)
• M4: 1,506,899 km (0.098 R)
• M5: 1,766,452 km (0.102 R)
• M6: 2,266,258 km (0.076 R)
• M7: 2,921,048 km (0.092 R)
• M8: 4,035,851 km (0.05 R)
• M9: 4,718,766 km (0.076 R)
• M10: 5,509,690 km (0.085 R)
• M11: 10,112,367 km (0.096 R)
• M12: 10,831,484 km (0.106 R)
• M13: 12,257,002 km (0.107 R)
• M14: 13,134,095 km (0.072 R)
• M15: 18,007,395 km (0.079 R)
• M16: 19,062,509 km (0.081 R)
• M17: 20,559,684 km (0.099 R)
• M18: 22,646,724 km (0.029 R)
• M19: 37,235,060 km (0.044 R)
• M20: 38,696,332 km (0.082 R)
• M21: 43,709,207 km (0.092 R)
• M22: 44,652,421 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138.5

Radius: 5.4

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 8.59 AU - 12.55 AU

Year: 23720 Days

Day: 22.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,038,275 km

• M1: 71,957 km (0.115 R)
• M2: 260,599 km (0.105 R)
• M3: 466,895 km (0.1 R)
• M4: 667,207 km (0.043 R)
• M5: 1,402,929 km (0.034 R)
• M6: 1,766,751 km (0.102 R)
• M7: 2,013,887 km (0.034 R)
• M8: 2,639,654 km (0.094 R)
• M9: 5,026,937 km (0.084 R)
• M10: 7,633,680 km (0.093 R)
• M11: 8,472,176 km (0.118 R)
• M12: 14,696,495 km (0.109 R)
• M13: 15,435,658 km (0.086 R)
• M14: 17,207,196 km (0.065 R)
• M15: 17,428,601 km (0.044 R)
• M16: 21,487,789 km (0.083 R)
• M17: 25,460,959 km (0.058 R)
• M18: 31,520,122 km (0.064 R)
• M19: 34,822,345 km (0.108 R)
• M20: 35,176,593 km (0.112 R)
• M21: 35,892,269 km (0.085 R)
• M22: 42,506,589 km (0.079 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 14,729 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit