🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.9

Radius: 11.2

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.64 AU - 0.92 AU

Year: 467 Days

Day: 14.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,063,637 km

• M1: 139,276 km (0.111 R)
• M2: 488,138 km (0.076 R)
• M3: 989,590 km (0.111 R)
• M4: 1,505,703 km (0.083 R)
• M5: 1,876,556 km (0.116 R)
• M6: 2,627,088 km (0.088 R)
• M7: 3,402,903 km (0.077 R)
• M8: 3,872,191 km (0.086 R)
• M9: 4,519,352 km (0.116 R)
• M10: 4,909,353 km (0.05 R)
• M11: 5,475,880 km (0.075 R)
• M12: 6,779,925 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.4

Radius: 10.7

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.09 AU - 1.37 AU

Year: 925 Days

Day: 10.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,063,637 km

• M1: 133,142 km (0.119 R)
• M2: 497,114 km (0.074 R)
• M3: 1,068,129 km (0.084 R)
• M4: 1,568,085 km (0.044 R)
• M5: 2,793,740 km (0.065 R)
• M6: 3,402,604 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.1

Radius: 15

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.01 AU - 1.67 AU

Year: 1052 Days

Day: 13.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,063,637 km

• M1: 186,549 km (0.111 R)
• M2: 855,251 km (0.106 R)
• M3: 1,590,225 km (0.12 R)
• M4: 2,160,941 km (0.115 R)
• M5: 3,615,033 km (0.095 R)
• M6: 5,152,300 km (0.087 R)
• M7: 6,078,760 km (0.072 R)
• M8: 7,248,466 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.8

Radius: 10.2

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.31 AU - 1.47 AU

Year: 1112 Days

Day: 11.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,063,637 km

• M1: 147,653 km (0.092 R)
• M2: 662,719 km (0.077 R)
• M3: 1,322,595 km (0.048 R)
• M4: 1,747,602 km (0.05 R)
• M5: 2,487,962 km (0.065 R)
• M6: 3,611,293 km (0.033 R)
• M7: 4,274,161 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.9

Radius: 12

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.74 AU - 2.86 AU

Year: 2366 Days

Day: 6.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,063,637 km

• M1: 149,299 km (0.104 R)
• M2: 621,729 km (0.115 R)
• M3: 1,015,919 km (0.041 R)
• M4: 1,398,441 km (0.053 R)
• M5: 1,950,158 km (0.088 R)
• M6: 2,373,221 km (0.051 R)
• M7: 2,780,127 km (0.081 R)
• M8: 3,251,061 km (0.096 R)
• M9: 3,988,279 km (0.076 R)
• M10: 4,418,224 km (0.115 R)
• M11: 4,879,135 km (0.113 R)
• M12: 5,518,965 km (0.06 R)
• M13: 5,898,195 km (0.063 R)
• M14: 6,737,589 km (0.057 R)
• M15: 7,593,289 km (0.102 R)
• M16: 8,095,788 km (0.06 R)
• M17: 10,369,077 km (0.116 R)
• M18: 11,107,193 km (0.111 R)
• M19: 11,509,462 km (0.045 R)
• M20: 14,225,561 km (0.114 R)
• M21: 15,482,482 km (0.092 R)
• M22: 17,667,509 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.8

Radius: 13.7

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.24 AU - 2.46 AU

Year: 2443 Days

Day: 9.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,063,637 km

• M1: 170,691 km (0.109 R)
• M2: 685,757 km (0.076 R)
• M3: 1,191,248 km (0.089 R)
• M4: 1,648,718 km (0.112 R)
• M5: 2,513,095 km (0.079 R)
• M6: 3,000,634 km (0.12 R)
• M7: 3,551,453 km (0.07 R)
• M8: 4,376,935 km (0.038 R)
• M9: 4,949,894 km (0.093 R)
• M10: 5,748,897 km (0.05 R)
• M11: 6,773,941 km (0.043 R)
• M12: 7,300,526 km (0.049 R)
• M13: 8,336,940 km (0.049 R)
• M14: 8,771,372 km (0.06 R)
• M15: 12,725,842 km (0.115 R)
• M16: 14,558,416 km (0.105 R)
• M17: 15,190,168 km (0.049 R)
• M18: 15,688,628 km (0.096 R)
• M19: 16,249,470 km (0.119 R)
• M20: 16,823,627 km (0.071 R)
• M21: 19,026,755 km (0.052 R)
• M22: 19,782,374 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.1

Radius: 8.3

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.31 AU - 3.27 AU

Year: 3161 Days

Day: 11.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,063,637 km

• M1: 104,419 km (0.098 R)
• M2: 844,181 km (0.093 R)
• M3: 1,353,861 km (0.082 R)
• M4: 1,772,286 km (0.115 R)
• M5: 2,195,947 km (0.113 R)
• M6: 3,844,516 km (0.066 R)
• M7: 5,403,026 km (0.098 R)
• M8: 7,107,544 km (0.064 R)
• M9: 12,409,293 km (0.084 R)
• M10: 14,093,316 km (0.081 R)
• M11: 14,419,290 km (0.089 R)
• M12: 16,637,078 km (0.12 R)
• M13: 18,735,189 km (0.067 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 915.9

Radius: 4.7

Gravity: 41.46 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 6.2 AU - 9.3 AU

Year: 14633 Days

Day: 20.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,063,637 km

• M1: 71,059 km (0.091 R)
• M2: 274,512 km (0.105 R)
• M3: 986,897 km (0.102 R)
• M4: 1,699,881 km (0.079 R)
• M5: 1,950,158 km (0.083 R)
• M6: 2,307,846 km (0.073 R)
• M7: 3,257,793 km (0.075 R)
• M8: 3,673,376 km (0.088 R)
• M9: 4,883,922 km (0.104 R)
• M10: 5,315,811 km (0.075 R)
• M11: 6,549,096 km (0.063 R)
• M12: 8,764,790 km (0.066 R)
• M13: 9,347,324 km (0.106 R)
• M14: 10,648,227 km (0.044 R)
• M15: 11,311,245 km (0.075 R)
• M16: 15,876,972 km (0.085 R)
• M17: 23,384,242 km (0.12 R)
• M18: 25,653,342 km (0.077 R)
• M19: 32,829,552 km (0.068 R)
• M20: 37,280,687 km (0.114 R)
• M21: 37,967,341 km (0.106 R)
• M22: 38,802,546 km (0.069 R)
• M23: 40,798,780 km (0.096 R)
• M24: 43,313,520 km (0.078 R)
• M25: 44,840,017 km (0.101 R)
• M26: 50,632,447 km (0.114 R)
• M27: 57,813,743 km (0.093 R)
• M28: 58,180,407 km (0.066 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 12,546 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit