🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.4

Radius: 9.4

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.51 AU - 0.59 AU

Year: 277 Days

Day: 13.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,780,786 km

• M1: 116,836 km (0.119 R)
• M2: 565,330 km (0.079 R)
• M3: 929,003 km (0.054 R)
• M4: 1,589,178 km (0.07 R)
• M5: 2,012,091 km (0.064 R)
• M6: 2,415,258 km (0.109 R)
• M7: 2,862,406 km (0.074 R)
• M8: 3,177,010 km (0.049 R)
• M9: 3,841,524 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.2

Radius: 11.3

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.43 AU - 0.71 AU

Year: 292 Days

Day: 9 Hours

Environment

Temp: -140 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 70,780,786 km

• M1: 140,622 km (0.098 R)
• M2: 492,775 km (0.064 R)
• M3: 892,950 km (0.104 R)
• M4: 1,419,235 km (0.1 R)
• M5: 1,926,073 km (0.049 R)
• M6: 2,626,639 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.5

Radius: 9

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.6 AU - 0.76 AU

Year: 380 Days

Day: 6.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,780,786 km

• M1: 111,899 km (0.066 R)
• M2: 408,851 km (0.115 R)
• M3: 750,832 km (0.104 R)
• M4: 1,315,713 km (0.1 R)
• M5: 1,659,639 km (0.116 R)
• M6: 2,071,183 km (0.072 R)
• M7: 2,487,364 km (0.12 R)
• M8: 2,998,839 km (0.047 R)
• M9: 3,410,682 km (0.045 R)
• M10: 3,969,131 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.8

Radius: 12.1

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.91 AU - 1.29 AU

Year: 782 Days

Day: 7.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 70,780,786 km

• M1: 151,692 km (0.104 R)
• M2: 859,440 km (0.062 R)
• M3: 1,262,157 km (0.041 R)
• M4: 1,701,975 km (0.115 R)
• M5: 2,443,980 km (0.11 R)
• M6: 2,901,451 km (0.087 R)
• M7: 3,643,755 km (0.099 R)
• M8: 4,060,385 km (0.119 R)
• M9: 4,584,427 km (0.108 R)
• M10: 5,420,679 km (0.116 R)
• M11: 6,567,347 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.8

Radius: 9.2

Gravity: 10.71 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.88 AU - 1.94 AU

Year: 1790 Days

Day: 10.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,780,786 km

• M1: 114,742 km (0.067 R)
• M2: 613,800 km (0.08 R)
• M3: 1,018,313 km (0.077 R)
• M4: 1,309,729 km (0.105 R)
• M5: 1,678,488 km (0.073 R)
• M6: 2,517,134 km (0.064 R)
• M7: 3,472,765 km (0.096 R)
• M8: 4,207,291 km (0.077 R)
• M9: 9,303,043 km (0.096 R)
• M10: 11,314,386 km (0.086 R)
• M11: 13,861,589 km (0.082 R)
• M12: 15,082,009 km (0.079 R)
• M13: 16,079,527 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.7

Radius: 11.8

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.57 AU - 2.27 AU

Year: 1804 Days

Day: 8.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,780,786 km

• M1: 146,756 km (0.116 R)
• M2: 815,159 km (0.054 R)
• M3: 1,384,379 km (0.098 R)
• M4: 1,942,080 km (0.081 R)
• M5: 2,414,809 km (0.033 R)
• M6: 2,949,621 km (0.086 R)
• M7: 3,530,061 km (0.113 R)
• M8: 4,600,883 km (0.068 R)
• M9: 5,212,139 km (0.093 R)
• M10: 6,278,174 km (0.095 R)
• M11: 6,773,642 km (0.112 R)
• M12: 10,658,549 km (0.119 R)
• M13: 11,804,319 km (0.115 R)
• M14: 13,552,221 km (0.102 R)
• M15: 14,004,605 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.8

Radius: 12.2

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.86 AU - 2.16 AU

Year: 1933 Days

Day: 13.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,780,786 km

• M1: 151,692 km (0.099 R)
• M2: 594,053 km (0.11 R)
• M3: 1,035,516 km (0.108 R)
• M4: 1,557,763 km (0.044 R)
• M5: 2,484,372 km (0.104 R)
• M6: 3,020,830 km (0.083 R)
• M7: 4,248,580 km (0.076 R)
• M8: 8,600,232 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.4

Radius: 15

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.38 AU - 2.48 AU

Year: 2569 Days

Day: 11.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,780,786 km

• M1: 186,549 km (0.062 R)
• M2: 676,631 km (0.084 R)
• M3: 1,941,032 km (0.039 R)
• M4: 3,798,140 km (0.077 R)
• M5: 4,367,360 km (0.057 R)
• M6: 4,849,365 km (0.05 R)
• M7: 6,341,155 km (0.084 R)
• M8: 9,490,190 km (0.105 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.5

Radius: 12.8

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.9 AU - 3.16 AU

Year: 2729 Days

Day: 13.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,780,786 km

• M1: 159,621 km (0.111 R)
• M2: 562,338 km (0.11 R)
• M3: 1,399,039 km (0.114 R)
• M4: 1,928,466 km (0.05 R)
• M5: 2,947,078 km (0.076 R)
• M6: 3,561,177 km (0.099 R)
• M7: 4,094,643 km (0.075 R)
• M8: 4,524,737 km (0.114 R)
• M9: 5,068,077 km (0.054 R)
• M10: 6,166,125 km (0.118 R)
• M11: 7,148,684 km (0.074 R)
• M12: 7,888,146 km (0.115 R)
• M13: 9,812,424 km (0.073 R)
• M14: 11,696,310 km (0.108 R)
• M15: 12,413,183 km (0.088 R)
• M16: 13,239,561 km (0.114 R)
• M17: 13,810,576 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.2

Radius: 5.4

Gravity: 30.15 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 7.7 AU - 8.64 AU

Year: 15839 Days

Day: 18 Hours

Environment

Temp: -240 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,780,786 km

• M1: 67,917 km (0.088 R)
• M2: 278,252 km (0.08 R)
• M3: 685,308 km (0.105 R)
• M4: 1,383,182 km (0.098 R)
• M5: 6,468,014 km (0.092 R)
• M6: 9,337,450 km (0.089 R)
• M7: 9,725,956 km (0.068 R)
• M8: 10,895,512 km (0.055 R)
• M9: 11,388,587 km (0.106 R)
• M10: 12,221,398 km (0.083 R)
• M11: 16,757,654 km (0.106 R)
• M12: 18,173,299 km (0.101 R)
• M13: 21,526,236 km (0.042 R)
• M14: 29,780,299 km (0.083 R)
• M15: 33,238,702 km (0.049 R)
• M16: 35,197,237 km (0.105 R)
• M17: 37,231,320 km (0.096 R)
• M18: 45,044,966 km (0.082 R)
• M19: 47,439,729 km (0.064 R)
• M20: 59,932,647 km (0.103 R)
• M21: 66,215,608 km (0.1 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 13,158 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit