🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.7

Radius: 8.8

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.56 AU - 0.68 AU

Year: 326 Days

Day: 10.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,669,830 km

• M1: 109,506 km (0.098 R)
• M2: 396,285 km (0.111 R)
• M3: 859,141 km (0.116 R)
• M4: 1,223,711 km (0.119 R)
• M5: 1,547,740 km (0.09 R)
• M6: 2,103,047 km (0.113 R)
• M7: 2,435,453 km (0.031 R)
• M8: 3,018,885 km (0.083 R)
• M9: 3,413,823 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.6

Radius: 12.6

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.57 AU - 0.87 AU

Year: 407 Days

Day: 5.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,669,830 km

• M1: 156,629 km (0.037 R)
• M2: 572,212 km (0.079 R)
• M3: 985,102 km (0.051 R)
• M4: 1,399,787 km (0.095 R)
• M5: 2,040,814 km (0.082 R)
• M6: 2,611,979 km (0.045 R)
• M7: 3,091,889 km (0.072 R)
• M8: 3,517,794 km (0.059 R)
• M9: 4,105,863 km (0.044 R)
• M10: 4,698,121 km (0.095 R)
• M11: 5,280,805 km (0.086 R)
• M12: 5,684,270 km (0.117 R)
• M13: 6,328,439 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.2

Radius: 14.7

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.76 AU - 1.02 AU

Year: 560 Days

Day: 13.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 37,669,830 km

• M1: 182,809 km (0.11 R)
• M2: 696,079 km (0.094 R)
• M3: 1,195,287 km (0.062 R)
• M4: 1,709,904 km (0.077 R)
• M5: 2,360,056 km (0.117 R)
• M6: 3,321,671 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.3

Radius: 12.3

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 4 AU - 6.38 AU

Year: 7885 Days

Day: 10.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,669,830 km

• M1: 153,039 km (0.072 R)
• M2: 708,645 km (0.071 R)
• M3: 1,105,528 km (0.087 R)
• M4: 1,761,365 km (0.064 R)
• M5: 2,322,956 km (0.109 R)
• M6: 2,829,943 km (0.058 R)
• M7: 3,540,084 km (0.077 R)
• M8: 4,240,501 km (0.113 R)
• M9: 5,980,773 km (0.118 R)
• M10: 9,421,524 km (0.106 R)
• M11: 13,127,363 km (0.061 R)
• M12: 14,457,138 km (0.095 R)
• M13: 15,451,964 km (0.032 R)
• M14: 18,847,686 km (0.081 R)
• M15: 20,828,960 km (0.071 R)
• M16: 21,345,223 km (0.113 R)
• M17: 22,789,590 km (0.118 R)
• M18: 23,496,141 km (0.109 R)
• M19: 31,002,513 km (0.102 R)
• M20: 32,457,502 km (0.059 R)
• M21: 33,452,477 km (0.082 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 339.7

Radius: 3.4

Gravity: 29.39 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 6.88 AU - 7.3 AU

Year: 12589 Days

Day: 21.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,669,830 km

• M1: 42,336 km (0.071 R)
• M2: 182,659 km (0.063 R)
• M3: 594,053 km (0.054 R)
• M4: 1,856,958 km (0.103 R)
• M5: 2,544,660 km (0.054 R)
• M6: 3,065,859 km (0.108 R)
• M7: 5,273,475 km (0.115 R)
• M8: 6,043,604 km (0.092 R)
• M9: 11,040,024 km (0.118 R)
• M10: 11,198,149 km (0.112 R)
• M11: 12,011,512 km (0.087 R)
• M12: 13,333,808 km (0.117 R)
• M13: 16,195,914 km (0.045 R)
• M14: 16,605,962 km (0.083 R)
• M15: 28,053,490 km (0.051 R)
• M16: 29,648,054 km (0.086 R)
• M17: 29,953,682 km (0.114 R)
• M18: 30,571,073 km (0.053 R)
• M19: 31,196,841 km (0.097 R)
• M20: 33,675,229 km (0.093 R)
• M21: 35,018,917 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 839

Radius: 6.6

Gravity: 19.26 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 5.67 AU - 9.05 AU

Year: 13315 Days

Day: 21.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 37,669,830 km

• M1: 85,420 km (0.063 R)
• M2: 375,939 km (0.099 R)
• M3: 656,136 km (0.081 R)
• M4: 1,074,113 km (0.041 R)
• M5: 1,562,849 km (0.092 R)
• M6: 2,094,370 km (0.102 R)
• M7: 2,309,791 km (0.11 R)
• M8: 2,950,220 km (0.078 R)
• M9: 5,434,891 km (0.099 R)
• M10: 6,274,583 km (0.086 R)
• M11: 7,154,069 km (0.117 R)
• M12: 8,949,992 km (0.104 R)
• M13: 10,061,654 km (0.114 R)
• M14: 11,501,683 km (0.109 R)
• M15: 12,684,254 km (0.084 R)
• M16: 13,538,757 km (0.075 R)
• M17: 14,571,581 km (0.1 R)
• M18: 16,180,206 km (0.072 R)
• M19: 16,561,681 km (0.073 R)
• M20: 18,893,463 km (0.055 R)
• M21: 19,487,516 km (0.097 R)
• M22: 21,072,057 km (0.078 R)
• M23: 22,550,981 km (0.094 R)
• M24: 24,595,386 km (0.084 R)
• M25: 25,714,079 km (0.09 R)
• M26: 26,129,213 km (0.101 R)
• M27: 27,834,329 km (0.092 R)
• M28: 28,825,415 km (0.09 R)
• M29: 30,413,397 km (0.09 R)
• M30: 38,420,324 km (0.112 R)
• M31: 40,063,207 km (0.058 R)
• M32: 43,195,787 km (0.098 R)
• M33: 47,413,848 km (0.047 R)
• M34: 49,302,671 km (0.071 R)
• M35: 53,734,807 km (0.071 R)
• M36: 54,754,616 km (0.082 R)
• M37: 56,482,770 km (0.06 R)
• M38: 59,323,036 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 108.6

Radius: 3.8

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 8.26 AU - 9.4 AU

Year: 17497 Days

Day: 22.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 37,669,830 km

• M1: 48,320 km (0.03 R)
• M2: 259,403 km (0.064 R)
• M3: 426,354 km (0.115 R)
• M4: 731,683 km (0.09 R)
• M5: 1,063,042 km (0.062 R)
• M6: 1,605,634 km (0.08 R)
• M7: 1,891,815 km (0.102 R)
• M8: 3,340,371 km (0.062 R)
• M9: 4,473,575 km (0.1 R)
• M10: 5,553,821 km (0.12 R)
• M11: 8,378,528 km (0.069 R)
• M12: 9,499,465 km (0.114 R)
• M13: 10,189,709 km (0.027 R)
• M14: 10,474,993 km (0.049 R)
• M15: 11,161,348 km (0.103 R)
• M16: 12,568,465 km (0.065 R)
• M17: 12,896,533 km (0.071 R)
• M18: 13,857,101 km (0.111 R)
• M19: 15,729,618 km (0.117 R)
• M20: 17,695,932 km (0.047 R)
• M21: 22,586,137 km (0.083 R)
• M22: 29,534,958 km (0.115 R)
• M23: 34,810,976 km (0.082 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 18,504 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit