🌌 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: 772.5

Radius: 10.6

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.6 AU - 0.9 AU

Year: 448 Days

Day: 13.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,786,701 km

• M1: 131,796 km (0.116 R)
• M2: 472,729 km (0.035 R)
• M3: 835,055 km (0.025 R)
• M4: 1,872,068 km (0.078 R)
• M5: 2,375,764 km (0.079 R)
• M6: 2,990,312 km (0.067 R)
• M7: 3,555,792 km (0.117 R)
• M8: 3,904,355 km (0.051 R)
• M9: 4,551,515 km (0.095 R)
• M10: 4,932,242 km (0.085 R)
• M11: 5,400,633 km (0.026 R)
• M12: 6,259,624 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.3

Radius: 9.4

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.83 AU - 0.87 AU

Year: 541 Days

Day: 9.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,786,701 km

• M1: 117,434 km (0.077 R)
• M2: 419,921 km (0.067 R)
• M3: 771,775 km (0.068 R)
• M4: 1,269,188 km (0.091 R)
• M5: 1,776,026 km (0.075 R)
• M6: 2,161,390 km (0.092 R)
• M7: 2,551,541 km (0.073 R)
• M8: 4,152,238 km (0.083 R)
• M9: 5,206,155 km (0.108 R)
• M10: 5,804,697 km (0.098 R)
• M11: 6,448,267 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.8

Radius: 9.5

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.81 AU - 0.95 AU

Year: 570 Days

Day: 7.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,786,701 km

• M1: 119,080 km (0.076 R)
• M2: 432,637 km (0.06 R)
• M3: 956,529 km (0.107 R)
• M4: 1,299,706 km (0.118 R)
• M5: 1,674,000 km (0.047 R)
• M6: 3,263,777 km (0.054 R)
• M7: 3,964,044 km (0.1 R)
• M8: 5,055,062 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.4

Radius: 10.8

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.01 AU - 2.61 AU

Year: 2423 Days

Day: 7.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,786,701 km

• M1: 134,339 km (0.066 R)
• M2: 497,563 km (0.089 R)
• M3: 1,174,642 km (0.095 R)
• M4: 2,316,523 km (0.119 R)
• M5: 3,359,370 km (0.044 R)
• M6: 4,454,277 km (0.054 R)
• M7: 5,548,735 km (0.088 R)
• M8: 9,653,850 km (0.108 R)
• M9: 10,126,130 km (0.077 R)
• M10: 11,717,403 km (0.08 R)
• M11: 13,070,516 km (0.036 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.1

Radius: 13

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.61 AU - 5.01 AU

Year: 7282 Days

Day: 10.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,786,701 km

• M1: 161,715 km (0.085 R)
• M2: 594,352 km (0.081 R)
• M3: 1,013,226 km (0.064 R)
• M4: 1,766,003 km (0.109 R)
• M5: 2,813,188 km (0.033 R)
• M6: 3,391,982 km (0.109 R)
• M7: 4,190,685 km (0.079 R)
• M8: 4,712,333 km (0.106 R)
• M9: 6,511,098 km (0.084 R)
• M10: 7,213,460 km (0.112 R)
• M11: 8,190,334 km (0.093 R)
• M12: 8,691,187 km (0.097 R)
• M13: 10,142,137 km (0.045 R)
• M14: 10,720,333 km (0.078 R)
• M15: 14,664,182 km (0.11 R)
• M16: 19,214,799 km (0.113 R)
• M17: 21,301,839 km (0.102 R)
• M18: 22,177,436 km (0.075 R)
• M19: 23,152,963 km (0.065 R)
• M20: 24,471,668 km (0.105 R)
• M21: 25,839,741 km (0.086 R)
• M22: 26,417,787 km (0.068 R)
• M23: 28,116,621 km (0.042 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 507.2

Radius: 3

Gravity: 56.36 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 8.1 AU - 11.36 AU

Year: 20950 Days

Day: 22.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,786,701 km

• M1: 38,447 km (0.078 R)
• M2: 156,928 km (0.072 R)
• M3: 889,509 km (0.107 R)
• M4: 2,130,872 km (0.12 R)
• M5: 2,875,869 km (0.045 R)
• M6: 3,002,280 km (0.083 R)
• M7: 4,647,258 km (0.083 R)
• M8: 6,417,898 km (0.11 R)
• M9: 8,132,888 km (0.093 R)
• M10: 8,233,418 km (0.112 R)
• M11: 9,505,897 km (0.036 R)
• M12: 9,843,390 km (0.085 R)
• M13: 16,867,609 km (0.093 R)
• M14: 17,612,457 km (0.114 R)
• M15: 22,448,357 km (0.072 R)
• M16: 35,558,217 km (0.078 R)
• M17: 43,770,392 km (0.111 R)
• M18: 62,427,790 km (0.047 R)
• M19: 64,003,953 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 403.5

Radius: 5.3

Gravity: 14.36 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 8.24 AU - 11.22 AU

Year: 20950 Days

Day: 23.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,786,701 km

• M1: 84,822 km (0.092 R)
• M2: 258,056 km (0.103 R)
• M3: 1,194,539 km (0.114 R)
• M4: 2,603,751 km (0.064 R)
• M5: 4,628,708 km (0.087 R)
• M6: 5,327,779 km (0.08 R)
• M7: 5,664,224 km (0.096 R)
• M8: 8,330,357 km (0.059 R)
• M9: 9,684,966 km (0.12 R)
• M10: 10,186,269 km (0.084 R)
• M11: 11,919,510 km (0.073 R)
• M12: 18,703,923 km (0.118 R)
• M13: 28,462,640 km (0.073 R)
• M14: 33,463,249 km (0.093 R)
• M15: 34,349,765 km (0.109 R)
• M16: 35,774,536 km (0.103 R)
• M17: 44,396,310 km (0.073 R)
• M18: 53,270,605 km (0.105 R)
• M19: 55,704,562 km (0.077 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 375 - 14,037 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit