🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.3

Radius: 11.9

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.56 AU - 0.82 AU

Year: 389 Days

Day: 7.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 52,055,270 km

• M1: 147,952 km (0.111 R)
• M2: 556,205 km (0.045 R)
• M3: 993,180 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.8

Radius: 10.4

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.53 AU - 0.85 AU

Year: 389 Days

Day: 5.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,055,270 km

• M1: 129,402 km (0.027 R)
• M2: 542,741 km (0.094 R)
• M3: 1,011,431 km (0.107 R)
• M4: 1,540,708 km (0.061 R)
• M5: 1,972,897 km (0.091 R)
• M6: 2,531,196 km (0.093 R)
• M7: 3,402,604 km (0.05 R)
• M8: 4,670,894 km (0.106 R)
• M9: 5,002,702 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.1

Radius: 13

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.75 AU - 0.97 AU

Year: 541 Days

Day: 14.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,055,270 km

• M1: 161,715 km (0.071 R)
• M2: 599,289 km (0.071 R)
• M3: 1,042,099 km (0.099 R)
• M4: 1,829,283 km (0.077 R)
• M5: 2,557,376 km (0.12 R)
• M6: 3,133,178 km (0.119 R)
• M7: 3,572,696 km (0.105 R)
• M8: 4,324,725 km (0.114 R)
• M9: 5,414,845 km (0.098 R)
• M10: 6,052,281 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.5

Radius: 14

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.76 AU - 1.04 AU

Year: 579 Days

Day: 7.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,055,270 km

• M1: 174,132 km (0.082 R)
• M2: 781,499 km (0.085 R)
• M3: 1,263,354 km (0.087 R)
• M4: 1,716,336 km (0.104 R)
• M5: 2,545,557 km (0.065 R)
• M6: 3,486,378 km (0.104 R)
• M7: 7,019,581 km (0.027 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.8

Radius: 13.3

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.94 AU - 0.98 AU

Year: 638 Days

Day: 5.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,055,270 km

• M1: 165,754 km (0.098 R)
• M2: 579,542 km (0.099 R)
• M3: 1,143,676 km (0.029 R)
• M4: 1,768,396 km (0.054 R)
• M5: 2,183,680 km (0.109 R)
• M6: 2,675,259 km (0.106 R)
• M7: 3,729,325 km (0.042 R)
• M8: 4,540,445 km (0.077 R)
• M9: 5,059,550 km (0.11 R)
• M10: 5,567,135 km (0.094 R)
• M11: 6,072,626 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.5

Radius: 11.4

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.9 AU - 1.5 AU

Year: 892 Days

Day: 8.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,055,270 km

• M1: 141,819 km (0.074 R)
• M2: 1,202,468 km (0.034 R)
• M3: 1,625,979 km (0.107 R)
• M4: 2,311,287 km (0.091 R)
• M5: 2,784,016 km (0.113 R)
• M6: 3,139,012 km (0.096 R)
• M7: 4,071,755 km (0.102 R)
• M8: 4,656,832 km (0.061 R)
• M9: 5,045,787 km (0.113 R)
• M10: 5,889,369 km (0.062 R)
• M11: 7,677,213 km (0.096 R)
• M12: 8,222,049 km (0.042 R)
• M13: 8,654,237 km (0.082 R)
• M14: 9,158,830 km (0.103 R)
• M15: 9,623,631 km (0.098 R)
• M16: 10,257,477 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.7

Radius: 13.3

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.23 AU - 1.91 AU

Year: 1334 Days

Day: 10.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,055,270 km

• M1: 165,455 km (0.034 R)
• M2: 650,152 km (0.082 R)
• M3: 1,085,781 km (0.087 R)
• M4: 1,749,397 km (0.11 R)
• M5: 2,598,665 km (0.065 R)
• M6: 3,106,400 km (0.073 R)
• M7: 5,093,508 km (0.073 R)
• M8: 5,655,548 km (0.047 R)
• M9: 6,475,793 km (0.118 R)
• M10: 6,988,315 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.7

Radius: 12.2

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.16 AU - 3.38 AU

Year: 3127 Days

Day: 7.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,055,270 km

• M1: 151,692 km (0.082 R)
• M2: 584,180 km (0.078 R)
• M3: 1,034,768 km (0.054 R)
• M4: 1,439,730 km (0.119 R)
• M5: 1,864,139 km (0.054 R)
• M6: 2,281,966 km (0.081 R)
• M7: 4,285,979 km (0.12 R)
• M8: 5,141,529 km (0.047 R)
• M9: 5,844,490 km (0.096 R)
• M10: 6,800,270 km (0.097 R)
• M11: 7,417,062 km (0.068 R)
• M12: 8,565,076 km (0.049 R)
• M13: 10,944,730 km (0.112 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.7

Radius: 11.8

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.99 AU - 4.87 AU

Year: 6324 Days

Day: 6.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,055,270 km

• M1: 146,756 km (0.11 R)
• M2: 603,029 km (0.106 R)
• M3: 1,077,254 km (0.085 R)
• M4: 1,504,506 km (0.108 R)
• M5: 1,884,933 km (0.068 R)
• M6: 2,714,902 km (0.053 R)
• M7: 3,142,154 km (0.099 R)
• M8: 3,705,090 km (0.073 R)
• M9: 4,542,240 km (0.107 R)
• M10: 5,119,538 km (0.117 R)
• M11: 5,561,600 km (0.082 R)
• M12: 6,388,427 km (0.099 R)
• M13: 8,128,251 km (0.083 R)
• M14: 10,770,000 km (0.117 R)
• M15: 13,602,336 km (0.108 R)
• M16: 14,280,613 km (0.03 R)
• M17: 18,353,714 km (0.095 R)
• M18: 20,471,571 km (0.094 R)
• M19: 20,988,282 km (0.076 R)
• M20: 21,741,507 km (0.105 R)
• M21: 31,549,742 km (0.07 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 401.9

Radius: 4.4

Gravity: 20.76 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 7.16 AU - 8.44 AU

Year: 14775 Days

Day: 15.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,055,270 km

• M1: 146,905 km (0.093 R)
• M2: 328,667 km (0.095 R)
• M3: 800,797 km (0.053 R)
• M4: 1,089,671 km (0.12 R)
• M5: 1,296,864 km (0.117 R)
• M6: 2,688,723 km (0.12 R)
• M7: 4,856,695 km (0.116 R)
• M8: 5,283,049 km (0.111 R)
• M9: 10,412,012 km (0.1 R)
• M10: 16,333,395 km (0.064 R)
• M11: 17,286,333 km (0.119 R)
• M12: 20,618,177 km (0.116 R)
• M13: 22,168,460 km (0.115 R)
• M14: 28,516,945 km (0.095 R)
• M15: 34,771,781 km (0.116 R)
• M16: 35,370,921 km (0.099 R)
• M17: 35,733,845 km (0.116 R)
• M18: 40,415,062 km (0.053 R)
• M19: 46,638,931 km (0.064 R)
• M20: 50,817,200 km (0.067 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 399 - 19,570 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit