🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.5

Radius: 11

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.56 AU - 0.9 AU

Year: 423 Days

Day: 12.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,525,805 km

• M1: 136,882 km (0.119 R)
• M2: 556,953 km (0.085 R)
• M3: 908,957 km (0.054 R)
• M4: 1,397,843 km (0.1 R)
• M5: 1,838,558 km (0.071 R)
• M6: 2,525,362 km (0.114 R)
• M7: 3,028,160 km (0.095 R)
• M8: 4,320,985 km (0.052 R)
• M9: 4,902,322 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.1

Radius: 12.9

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.6 AU - 0.94 AU

Year: 458 Days

Day: 13.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 58,525,805 km

• M1: 167,550 km (0.091 R)
• M2: 586,872 km (0.068 R)
• M3: 1,037,461 km (0.103 R)
• M4: 1,509,742 km (0.065 R)
• M5: 2,362,150 km (0.027 R)
• M6: 3,010,358 km (0.116 R)
• M7: 3,445,239 km (0.084 R)
• M8: 4,580,986 km (0.044 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.1

Radius: 10.4

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.19 AU - 1.69 AU

Year: 1172 Days

Day: 10.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,525,805 km

• M1: 129,402 km (0.097 R)
• M2: 517,459 km (0.069 R)
• M3: 862,881 km (0.061 R)
• M4: 1,561,951 km (0.043 R)
• M5: 2,665,984 km (0.092 R)
• M6: 3,013,799 km (0.061 R)
• M7: 3,802,030 km (0.081 R)
• M8: 4,523,391 km (0.04 R)
• M9: 5,137,041 km (0.051 R)
• M10: 5,514,926 km (0.119 R)
• M11: 7,976,110 km (0.067 R)
• M12: 8,760,152 km (0.094 R)
• M13: 9,359,441 km (0.116 R)
• M14: 9,804,046 km (0.08 R)
• M15: 10,703,728 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.6

Radius: 8.9

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.56 AU - 2.76 AU

Year: 2942 Days

Day: 14.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,525,805 km

• M1: 111,600 km (0.083 R)
• M2: 481,705 km (0.073 R)
• M3: 953,537 km (0.063 R)
• M4: 1,553,125 km (0.06 R)
• M5: 2,704,281 km (0.06 R)
• M6: 4,085,817 km (0.028 R)
• M7: 4,636,786 km (0.051 R)
• M8: 6,334,572 km (0.09 R)
• M9: 7,974,614 km (0.08 R)
• M10: 9,008,784 km (0.118 R)
• M11: 9,756,624 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.2

Radius: 10.5

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.94 AU - 4.56 AU

Year: 4925 Days

Day: 5.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 58,525,805 km

• M1: 130,898 km (0.119 R)
• M2: 587,471 km (0.117 R)
• M3: 1,041,650 km (0.056 R)
• M4: 1,776,026 km (0.094 R)
• M5: 2,135,061 km (0.085 R)
• M6: 2,640,402 km (0.076 R)
• M7: 4,067,716 km (0.108 R)
• M8: 5,051,920 km (0.108 R)
• M9: 5,697,734 km (0.118 R)
• M10: 6,895,564 km (0.081 R)
• M11: 7,452,667 km (0.05 R)
• M12: 9,305,736 km (0.103 R)
• M13: 9,782,953 km (0.086 R)
• M14: 12,802,436 km (0.119 R)
• M15: 13,343,382 km (0.082 R)
• M16: 15,166,382 km (0.094 R)
• M17: 16,740,002 km (0.104 R)
• M18: 17,149,900 km (0.108 R)
• M19: 19,364,397 km (0.088 R)
• M20: 20,407,394 km (0.064 R)
• M21: 20,875,336 km (0.044 R)
• M22: 22,962,226 km (0.117 R)
• M23: 26,347,925 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.2

Radius: 10.3

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.9 AU - 4.26 AU

Year: 5590 Days

Day: 8.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,525,805 km

• M1: 128,056 km (0.096 R)
• M2: 455,825 km (0.101 R)
• M3: 996,771 km (0.05 R)
• M4: 1,345,932 km (0.11 R)
• M5: 1,969,755 km (0.088 R)
• M6: 5,198,077 km (0.105 R)
• M7: 5,795,571 km (0.078 R)
• M8: 6,462,179 km (0.103 R)
• M9: 7,543,772 km (0.081 R)
• M10: 9,401,777 km (0.119 R)
• M11: 10,553,083 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 943.9

Radius: 7.2

Gravity: 18.21 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 6.28 AU - 7.76 AU

Year: 12615 Days

Day: 21.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 58,525,805 km

• M1: 94,845 km (0.049 R)
• M2: 363,822 km (0.083 R)
• M3: 594,502 km (0.094 R)
• M4: 992,881 km (0.117 R)
• M5: 1,484,011 km (0.118 R)
• M6: 2,014,784 km (0.07 R)
• M7: 3,892,985 km (0.111 R)
• M8: 4,375,439 km (0.06 R)
• M9: 4,663,863 km (0.116 R)
• M10: 5,172,945 km (0.08 R)
• M11: 6,341,903 km (0.076 R)
• M12: 8,632,994 km (0.037 R)
• M13: 8,934,583 km (0.107 R)
• M14: 11,186,630 km (0.047 R)
• M15: 14,483,767 km (0.064 R)
• M16: 14,766,955 km (0.117 R)
• M17: 16,698,563 km (0.114 R)
• M18: 18,294,473 km (0.107 R)
• M19: 20,076,932 km (0.063 R)
• M20: 20,517,797 km (0.082 R)
• M21: 22,252,234 km (0.103 R)
• M22: 25,802,641 km (0.061 R)
• M23: 26,428,857 km (0.091 R)
• M24: 27,495,191 km (0.077 R)
• M25: 33,382,615 km (0.083 R)
• M26: 34,501,907 km (0.106 R)
• M27: 35,646,031 km (0.091 R)
• M28: 38,548,978 km (0.066 R)
• M29: 38,820,498 km (0.057 R)
• M30: 40,336,523 km (0.088 R)
• M31: 47,726,957 km (0.072 R)
• M32: 48,196,993 km (0.086 R)
• M33: 56,319,110 km (0.091 R)
• M34: 60,062,498 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.6

Radius: 4

Gravity: 34.1 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 7.01 AU - 8.83 AU

Year: 15117 Days

Day: 23.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,525,805 km

• M1: 53,556 km (0.091 R)
• M2: 271,670 km (0.078 R)
• M3: 680,970 km (0.112 R)
• M4: 2,348,088 km (0.09 R)
• M5: 3,334,985 km (0.12 R)
• M6: 5,064,935 km (0.104 R)
• M7: 5,853,615 km (0.083 R)
• M8: 6,316,770 km (0.051 R)
• M9: 9,155,689 km (0.084 R)
• M10: 9,360,339 km (0.066 R)
• M11: 16,034,797 km (0.08 R)
• M12: 16,406,997 km (0.103 R)
• M13: 17,954,138 km (0.064 R)
• M14: 21,156,280 km (0.102 R)
• M15: 28,228,819 km (0.076 R)
• M16: 34,093,504 km (0.119 R)
• M17: 46,631,601 km (0.104 R)
• M18: 46,782,545 km (0.075 R)
• M19: 52,272,189 km (0.083 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: 395 - 12,450 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit