🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.6

Radius: 10.3

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.63 AU - 1.03 AU

Year: 513 Days

Day: 6.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,632,969 km

• M1: 128,355 km (0.106 R)
• M2: 631,004 km (0.076 R)
• M3: 1,083,986 km (0.095 R)
• M4: 1,475,334 km (0.102 R)
• M5: 1,878,351 km (0.101 R)
• M6: 2,310,689 km (0.111 R)
• M7: 2,893,223 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.2

Radius: 12.1

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.72 AU - 1.16 AU

Year: 618 Days

Day: 13.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,632,969 km

• M1: 150,495 km (0.119 R)
• M2: 646,412 km (0.077 R)
• M3: 1,028,336 km (0.095 R)
• M4: 1,467,406 km (0.04 R)
• M5: 1,950,756 km (0.112 R)
• M6: 2,782,221 km (0.116 R)
• M7: 3,823,871 km (0.099 R)
• M8: 5,790,784 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.7

Radius: 10.4

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.2 AU - 1.22 AU

Year: 903 Days

Day: 5.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,632,969 km

• M1: 129,851 km (0.072 R)
• M2: 612,753 km (0.061 R)
• M3: 971,339 km (0.116 R)
• M4: 1,384,079 km (0.083 R)
• M5: 1,804,749 km (0.086 R)
• M6: 2,185,625 km (0.119 R)
• M7: 2,958,447 km (0.117 R)
• M8: 3,843,319 km (0.087 R)
• M9: 5,527,941 km (0.117 R)
• M10: 5,985,860 km (0.085 R)
• M11: 6,319,313 km (0.106 R)
• M12: 6,687,174 km (0.094 R)
• M13: 7,138,212 km (0.084 R)
• M14: 8,666,953 km (0.047 R)
• M15: 9,067,576 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.3

Radius: 9.2

Gravity: 11.19 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.3 AU - 1.34 AU

Year: 1029 Days

Day: 5.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,632,969 km

• M1: 114,442 km (0.088 R)
• M2: 509,231 km (0.063 R)
• M3: 1,037,461 km (0.083 R)
• M4: 1,327,382 km (0.116 R)
• M5: 1,765,704 km (0.109 R)
• M6: 2,088,386 km (0.06 R)
• M7: 2,622,002 km (0.111 R)
• M8: 3,129,288 km (0.099 R)
• M9: 4,062,330 km (0.114 R)
• M10: 4,649,203 km (0.113 R)
• M11: 5,090,965 km (0.058 R)
• M12: 6,399,049 km (0.118 R)
• M13: 7,143,897 km (0.089 R)
• M14: 7,524,474 km (0.094 R)
• M15: 8,409,495 km (0.044 R)
• M16: 9,302,744 km (0.106 R)
• M17: 10,710,011 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.3

Radius: 11.3

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.95 AU - 5.85 AU

Year: 7357 Days

Day: 14.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 132.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 62,632,969 km

• M1: 141,370 km (0.051 R)
• M2: 692,040 km (0.081 R)
• M3: 1,379,891 km (0.087 R)
• M4: 2,766,663 km (0.067 R)
• M5: 3,294,295 km (0.12 R)
• M6: 3,958,659 km (0.102 R)
• M7: 4,323,229 km (0.12 R)
• M8: 4,683,760 km (0.043 R)
• M9: 5,349,021 km (0.079 R)
• M10: 6,563,457 km (0.063 R)
• M11: 7,877,525 km (0.069 R)
• M12: 8,819,094 km (0.112 R)
• M13: 9,922,079 km (0.087 R)
• M14: 11,210,416 km (0.108 R)
• M15: 11,995,056 km (0.048 R)
• M16: 12,763,541 km (0.066 R)
• M17: 13,240,160 km (0.113 R)
• M18: 14,684,078 km (0.103 R)
• M19: 15,090,236 km (0.105 R)
• M20: 15,985,729 km (0.119 R)
• M21: 16,415,674 km (0.119 R)
• M22: 17,427,254 km (0.039 R)
• M23: 23,668,178 km (0.062 R)
• M24: 24,794,800 km (0.117 R)
• M25: 26,465,659 km (0.085 R)
• M26: 27,855,423 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60

Radius: 9.4

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.84 AU - 5.06 AU

Year: 7470 Days

Day: 10.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,632,969 km

• M1: 126,111 km (0.111 R)
• M2: 676,631 km (0.071 R)
• M3: 1,197,980 km (0.075 R)
• M4: 1,620,145 km (0.035 R)
• M5: 2,358,859 km (0.095 R)
• M6: 3,655,873 km (0.055 R)
• M7: 4,766,338 km (0.082 R)
• M8: 5,213,187 km (0.102 R)
• M9: 5,785,997 km (0.108 R)
• M10: 6,560,315 km (0.04 R)
• M11: 8,699,715 km (0.12 R)
• M12: 12,807,223 km (0.114 R)
• M13: 17,007,782 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 906.4

Radius: 6.7

Gravity: 20.19 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 4.75 AU - 6.61 AU

Year: 9182 Days

Day: 17 Hours

Environment

Temp: -225 °C

Axial Tilt: 63.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,632,969 km

• M1: 84,074 km (0.073 R)
• M2: 813,214 km (0.114 R)
• M3: 1,423,274 km (0.118 R)
• M4: 2,068,490 km (0.03 R)
• M5: 2,617,514 km (0.098 R)
• M6: 3,165,192 km (0.1 R)
• M7: 6,822,560 km (0.046 R)
• M8: 7,101,710 km (0.113 R)
• M9: 11,127,688 km (0.119 R)
• M10: 18,071,722 km (0.062 R)
• M11: 19,468,816 km (0.087 R)
• M12: 19,788,806 km (0.064 R)
• M13: 20,275,299 km (0.095 R)
• M14: 21,954,834 km (0.111 R)
• M15: 24,737,953 km (0.098 R)
• M16: 29,288,271 km (0.111 R)
• M17: 30,993,238 km (0.102 R)
• M18: 33,444,100 km (0.051 R)
• M19: 34,366,520 km (0.08 R)
• M20: 36,021,222 km (0.12 R)
• M21: 39,488,752 km (0.08 R)
• M22: 45,657,869 km (0.104 R)
• M23: 46,081,231 km (0.066 R)
• M24: 47,079,048 km (0.088 R)
• M25: 49,265,720 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 947.2

Radius: 3.5

Gravity: 77.32 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.65 AU - 6.99 AU

Year: 9523 Days

Day: 18.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,632,969 km

• M1: 44,131 km (0.067 R)
• M2: 204,201 km (0.119 R)
• M3: 1,316,162 km (0.081 R)
• M4: 1,673,252 km (0.107 R)
• M5: 1,882,689 km (0.084 R)
• M6: 3,897,324 km (0.11 R)
• M7: 4,008,176 km (0.12 R)
• M8: 4,323,977 km (0.114 R)
• M9: 4,908,306 km (0.115 R)
• M10: 5,202,864 km (0.119 R)
• M11: 5,543,648 km (0.119 R)
• M12: 9,113,353 km (0.045 R)
• M13: 10,172,506 km (0.064 R)
• M14: 14,358,104 km (0.088 R)
• M15: 23,529,800 km (0.077 R)
• M16: 24,458,055 km (0.109 R)
• M17: 31,093,618 km (0.047 R)
• M18: 32,210,366 km (0.114 R)
• M19: 32,550,552 km (0.115 R)
• M20: 33,122,913 km (0.117 R)
• M21: 39,219,475 km (0.098 R)
• M22: 49,399,910 km (0.062 R)
• M23: 50,307,370 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 44.6

Radius: 5.4

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 6.94 AU - 7.54 AU

Year: 13213 Days

Day: 19.4 Hours

Environment

Temp: -240 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,632,969 km

• M1: 134,788 km (0.099 R)
• M2: 649,554 km (0.106 R)
• M3: 1,593,816 km (0.059 R)
• M4: 1,856,958 km (0.119 R)
• M5: 2,692,163 km (0.086 R)
• M6: 3,322,569 km (0.093 R)
• M7: 6,193,352 km (0.119 R)
• M8: 8,248,976 km (0.079 R)
• M9: 12,879,180 km (0.095 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 857.5

Radius: 4.6

Gravity: 40.52 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 6.51 AU - 8.07 AU

Year: 13350 Days

Day: 22.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 62,632,969 km

• M1: 57,446 km (0.117 R)
• M2: 228,885 km (0.069 R)
• M3: 398,379 km (0.072 R)
• M4: 798,853 km (0.091 R)
• M5: 977,472 km (0.106 R)
• M6: 1,445,714 km (0.053 R)
• M7: 1,631,215 km (0.106 R)
• M8: 1,798,017 km (0.095 R)
• M9: 2,013,139 km (0.06 R)
• M10: 2,245,165 km (0.068 R)
• M11: 2,538,377 km (0.066 R)
• M12: 2,786,410 km (0.105 R)
• M13: 3,797,692 km (0.029 R)
• M14: 4,032,111 km (0.061 R)
• M15: 5,067,179 km (0.088 R)
• M16: 6,187,817 km (0.116 R)
• M17: 8,505,237 km (0.105 R)
• M18: 9,060,545 km (0.096 R)
• M19: 9,910,709 km (0.115 R)
• M20: 11,224,029 km (0.068 R)
• M21: 11,584,859 km (0.052 R)
• M22: 14,970,708 km (0.066 R)
• M23: 20,793,206 km (0.114 R)
• M24: 24,101,414 km (0.111 R)
• M25: 26,245,750 km (0.091 R)
• M26: 27,853,029 km (0.117 R)
• M27: 29,867,065 km (0.072 R)
• M28: 31,380,547 km (0.03 R)
• M29: 32,336,926 km (0.105 R)
• M30: 45,827,213 km (0.101 R)
• M31: 47,057,207 km (0.072 R)
• M32: 51,865,881 km (0.118 R)
• M33: 53,538,834 km (0.066 R)
• M34: 56,289,789 km (0.075 R)
• M35: 59,677,134 km (0.082 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 524 - 15,277 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit