🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.7

Radius: 9.9

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.63 AU - 0.99 AU

Year: 478 Days

Day: 11.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 40,046,717 km

• M1: 123,119 km (0.105 R)
• M2: 482,603 km (0.036 R)
• M3: 1,732,643 km (0.116 R)
• M4: 2,324,003 km (0.052 R)
• M5: 2,953,212 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.7

Radius: 13.4

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.04 AU - 1.04 AU

Year: 696 Days

Day: 13.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,046,717 km

• M1: 173,085 km (0.046 R)
• M2: 631,752 km (0.079 R)
• M3: 1,124,826 km (0.041 R)
• M4: 1,555,219 km (0.1 R)
• M5: 1,983,668 km (0.115 R)
• M6: 2,585,051 km (0.113 R)
• M7: 3,147,090 km (0.042 R)
• M8: 3,735,758 km (0.066 R)
• M9: 4,772,471 km (0.093 R)
• M10: 5,917,793 km (0.081 R)
• M11: 6,455,896 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888

Radius: 11.5

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.86 AU - 1.26 AU

Year: 716 Days

Day: 12 Hours

Environment

Temp: -163 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,046,717 km

• M1: 143,016 km (0.094 R)
• M2: 523,293 km (0.065 R)
• M3: 1,000,660 km (0.113 R)
• M4: 1,650,962 km (0.045 R)
• M5: 2,371,126 km (0.104 R)
• M6: 2,858,367 km (0.051 R)
• M7: 3,494,606 km (0.089 R)
• M8: 4,449,340 km (0.113 R)
• M9: 5,232,186 km (0.115 R)
• M10: 5,962,672 km (0.114 R)
• M11: 6,629,579 km (0.079 R)
• M12: 7,698,456 km (0.05 R)
• M13: 8,438,816 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.2

Radius: 8.3

Gravity: 12.37 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.47 AU - 1.63 AU

Year: 1266 Days

Day: 11.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,046,717 km

• M1: 103,223 km (0.08 R)
• M2: 614,548 km (0.061 R)
• M3: 1,051,673 km (0.108 R)
• M4: 1,399,638 km (0.117 R)
• M5: 1,793,529 km (0.092 R)
• M6: 2,122,345 km (0.11 R)
• M7: 2,567,399 km (0.112 R)
• M8: 3,029,955 km (0.115 R)
• M9: 3,312,097 km (0.104 R)
• M10: 3,878,026 km (0.105 R)
• M11: 4,394,587 km (0.045 R)
• M12: 4,796,557 km (0.087 R)
• M13: 5,244,004 km (0.119 R)
• M14: 5,830,727 km (0.114 R)
• M15: 6,105,239 km (0.091 R)
• M16: 7,422,747 km (0.081 R)
• M17: 9,347,324 km (0.062 R)
• M18: 11,228,367 km (0.071 R)
• M19: 11,546,861 km (0.105 R)
• M20: 12,388,349 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792

Radius: 11.4

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3.19 AU - 5.15 AU

Year: 5586 Days

Day: 12 Hours

Environment

Temp: -215 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,046,717 km

• M1: 141,819 km (0.051 R)
• M2: 544,536 km (0.06 R)
• M3: 1,905,278 km (0.098 R)
• M4: 4,090,903 km (0.059 R)
• M5: 5,087,225 km (0.094 R)
• M6: 6,368,980 km (0.108 R)
• M7: 9,175,735 km (0.114 R)
• M8: 12,304,275 km (0.095 R)
• M9: 12,984,646 km (0.118 R)
• M10: 14,941,536 km (0.088 R)
• M11: 15,355,324 km (0.084 R)
• M12: 16,329,954 km (0.073 R)
• M13: 20,790,663 km (0.051 R)
• M14: 21,907,262 km (0.117 R)
• M15: 22,288,138 km (0.085 R)
• M16: 25,918,729 km (0.073 R)
• M17: 28,910,387 km (0.093 R)
• M18: 29,461,356 km (0.085 R)
• M19: 30,394,996 km (0.098 R)
• M20: 33,717,415 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.5

Radius: 8.1

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.74 AU - 6.58 AU

Year: 8834 Days

Day: 14.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,046,717 km

• M1: 100,679 km (0.102 R)
• M2: 1,441,675 km (0.081 R)
• M3: 4,723,104 km (0.077 R)
• M4: 5,278,262 km (0.082 R)
• M5: 7,142,102 km (0.117 R)
• M6: 9,484,355 km (0.051 R)
• M7: 10,999,931 km (0.047 R)
• M8: 11,435,860 km (0.085 R)
• M9: 23,612,827 km (0.065 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 433.8

Radius: 6.1

Gravity: 11.66 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 5.59 AU - 6.39 AU

Year: 9617 Days

Day: 21.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,046,717 km

• M1: 75,846 km (0.118 R)
• M2: 265,686 km (0.057 R)
• M3: 724,054 km (0.112 R)
• M4: 2,542,865 km (0.119 R)
• M5: 2,814,534 km (0.092 R)
• M6: 3,485,780 km (0.081 R)
• M7: 4,048,866 km (0.034 R)
• M8: 4,586,372 km (0.106 R)
• M9: 5,079,446 km (0.067 R)
• M10: 6,001,567 km (0.044 R)
• M11: 6,484,619 km (0.1 R)
• M12: 6,735,794 km (0.079 R)
• M13: 7,334,036 km (0.12 R)
• M14: 8,593,201 km (0.103 R)
• M15: 9,117,093 km (0.105 R)
• M16: 12,061,328 km (0.119 R)
• M17: 12,332,100 km (0.108 R)
• M18: 15,456,751 km (0.053 R)
• M19: 17,578,498 km (0.087 R)
• M20: 18,853,520 km (0.117 R)
• M21: 20,113,135 km (0.081 R)
• M22: 21,113,495 km (0.059 R)
• M23: 26,435,290 km (0.116 R)
• M24: 38,098,090 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 244.6

Radius: 6.3

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 6.12 AU - 8.36 AU

Year: 12780 Days

Day: 20 Hours

Environment

Temp: -225 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,046,717 km

• M1: 188,045 km (0.053 R)
• M2: 2,005,958 km (0.105 R)
• M3: 2,376,961 km (0.096 R)
• M4: 3,278,288 km (0.046 R)
• M5: 3,744,734 km (0.059 R)
• M6: 5,164,866 km (0.119 R)
• M7: 8,203,798 km (0.088 R)
• M8: 9,284,941 km (0.088 R)
• M9: 11,464,882 km (0.101 R)
• M10: 17,211,235 km (0.091 R)
• M11: 17,692,791 km (0.099 R)
• M12: 21,794,764 km (0.12 R)
• M13: 22,767,001 km (0.107 R)
• M14: 24,193,267 km (0.082 R)
• M15: 27,782,569 km (0.094 R)
• M16: 30,696,585 km (0.084 R)
• M17: 36,443,687 km (0.089 R)
• M18: 39,688,016 km (0.09 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: 470 - 11,761 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit