🌌 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: 86.2

Radius: 10.6

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.67 AU - 0.99 AU

Year: 496 Days

Day: 12.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,520,770 km

• M1: 132,245 km (0.066 R)
• M2: 465,249 km (0.114 R)
• M3: 800,498 km (0.095 R)
• M4: 1,712,746 km (0.119 R)
• M5: 2,266,408 km (0.117 R)
• M6: 2,650,425 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394

Radius: 15

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.86 AU - 0.9 AU

Year: 542 Days

Day: 10.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,520,770 km

• M1: 186,997 km (0.092 R)
• M2: 669,600 km (0.112 R)
• M3: 1,252,284 km (0.101 R)
• M4: 2,023,461 km (0.047 R)
• M5: 2,657,606 km (0.104 R)
• M6: 3,274,548 km (0.088 R)
• M7: 3,833,595 km (0.083 R)
• M8: 4,359,432 km (0.061 R)
• M9: 5,413,199 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.9

Radius: 9.3

Gravity: 8.69 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.11 AU - 1.29 AU

Year: 862 Days

Day: 13.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,520,770 km

• M1: 115,639 km (0.111 R)
• M2: 556,803 km (0.106 R)
• M3: 972,985 km (0.072 R)
• M4: 1,625,530 km (0.076 R)
• M5: 2,104,094 km (0.072 R)
• M6: 2,399,251 km (0.096 R)
• M7: 3,127,194 km (0.073 R)
• M8: 4,011,018 km (0.093 R)
• M9: 4,367,959 km (0.109 R)
• M10: 4,924,912 km (0.088 R)
• M11: 5,868,874 km (0.109 R)
• M12: 6,373,168 km (0.097 R)
• M13: 8,657,977 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.5

Radius: 10.6

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.21 AU - 1.29 AU

Year: 917 Days

Day: 12.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,520,770 km

• M1: 131,796 km (0.103 R)
• M2: 484,697 km (0.112 R)
• M3: 880,982 km (0.088 R)
• M4: 1,259,016 km (0.1 R)
• M5: 1,722,919 km (0.103 R)
• M6: 2,075,970 km (0.104 R)
• M7: 2,407,329 km (0.108 R)
• M8: 2,919,851 km (0.028 R)
• M9: 3,770,016 km (0.11 R)
• M10: 4,327,866 km (0.051 R)
• M11: 4,666,257 km (0.101 R)
• M12: 5,449,102 km (0.089 R)
• M13: 5,826,239 km (0.11 R)
• M14: 6,633,020 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.7

Radius: 8.5

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.19 AU - 1.51 AU

Year: 1029 Days

Day: 11.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,520,770 km

• M1: 110,403 km (0.068 R)
• M2: 442,660 km (0.048 R)
• M3: 886,367 km (0.094 R)
• M4: 1,342,790 km (0.04 R)
• M5: 1,677,142 km (0.049 R)
• M6: 2,047,097 km (0.11 R)
• M7: 2,470,758 km (0.095 R)
• M8: 2,901,301 km (0.116 R)
• M9: 3,567,012 km (0.103 R)
• M10: 4,166,600 km (0.111 R)
• M11: 4,637,235 km (0.093 R)
• M12: 5,332,416 km (0.094 R)
• M13: 6,974,702 km (0.099 R)
• M14: 8,370,749 km (0.094 R)
• M15: 8,767,183 km (0.108 R)
• M16: 9,427,508 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.3

Radius: 8.6

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.52 AU - 1.94 AU

Year: 1493 Days

Day: 10 Hours

Environment

Temp: -193 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,520,770 km

• M1: 106,962 km (0.032 R)
• M2: 415,433 km (0.085 R)
• M3: 698,173 km (0.089 R)
• M4: 1,007,242 km (0.081 R)
• M5: 1,564,794 km (0.089 R)
• M6: 1,852,470 km (0.112 R)
• M7: 2,339,112 km (0.106 R)
• M8: 2,665,385 km (0.067 R)
• M9: 3,348,150 km (0.083 R)
• M10: 3,933,227 km (0.05 R)
• M11: 4,250,524 km (0.11 R)
• M12: 4,758,409 km (0.035 R)
• M13: 5,201,817 km (0.105 R)
• M14: 5,828,183 km (0.067 R)
• M15: 6,171,361 km (0.104 R)
• M16: 10,519,124 km (0.111 R)
• M17: 11,063,361 km (0.099 R)
• M18: 11,951,374 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.4

Radius: 12.1

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.13 AU - 3.29 AU

Year: 3773 Days

Day: 10.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,520,770 km

• M1: 150,495 km (0.115 R)
• M2: 659,577 km (0.092 R)
• M3: 1,068,428 km (0.077 R)
• M4: 1,522,158 km (0.109 R)
• M5: 1,974,841 km (0.111 R)
• M6: 2,578,768 km (0.037 R)
• M7: 3,176,412 km (0.071 R)
• M8: 3,586,011 km (0.075 R)
• M9: 4,512,769 km (0.107 R)
• M10: 5,358,895 km (0.098 R)
• M11: 7,238,891 km (0.088 R)
• M12: 8,608,460 km (0.06 R)
• M13: 9,187,404 km (0.072 R)
• M14: 9,947,510 km (0.08 R)
• M15: 11,636,620 km (0.106 R)
• M16: 13,082,035 km (0.094 R)
• M17: 14,242,316 km (0.04 R)
• M18: 15,948,180 km (0.069 R)
• M19: 18,547,892 km (0.096 R)
• M20: 20,325,264 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 171.4

Radius: 5.9

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 5.97 AU - 6.31 AU

Year: 9981 Days

Day: 16.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,520,770 km

• M1: 79,287 km (0.079 R)
• M2: 273,315 km (0.119 R)
• M3: 987,346 km (0.064 R)
• M4: 2,636,812 km (0.084 R)
• M5: 3,767,622 km (0.071 R)
• M6: 8,185,846 km (0.118 R)
• M7: 10,045,198 km (0.119 R)
• M8: 13,545,638 km (0.094 R)
• M9: 13,758,067 km (0.085 R)
• M10: 17,529,729 km (0.101 R)
• M11: 18,684,624 km (0.091 R)
• M12: 19,147,181 km (0.113 R)
• M13: 24,278,388 km (0.108 R)
• M14: 25,388,105 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 896.1

Radius: 6.6

Gravity: 20.57 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 7.04 AU - 10.78 AU

Year: 17447 Days

Day: 20.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 69,520,770 km

• M1: 83,176 km (0.117 R)
• M2: 308,620 km (0.094 R)
• M3: 636,240 km (0.081 R)
• M4: 981,661 km (0.12 R)
• M5: 1,198,129 km (0.087 R)
• M6: 1,695,093 km (0.062 R)
• M7: 2,131,171 km (0.111 R)
• M8: 3,535,147 km (0.042 R)
• M9: 5,785,548 km (0.051 R)
• M10: 7,373,230 km (0.065 R)
• M11: 9,740,467 km (0.119 R)
• M12: 11,064,109 km (0.076 R)
• M13: 12,640,122 km (0.057 R)
• M14: 14,360,049 km (0.062 R)
• M15: 17,223,801 km (0.089 R)
• M16: 17,735,426 km (0.118 R)
• M17: 18,169,559 km (0.076 R)
• M18: 20,637,026 km (0.119 R)
• M19: 21,214,175 km (0.118 R)
• M20: 23,945,383 km (0.095 R)
• M21: 25,340,383 km (0.101 R)
• M22: 29,849,114 km (0.057 R)
• M23: 33,661,166 km (0.084 R)
• M24: 45,709,929 km (0.052 R)
• M25: 46,854,801 km (0.077 R)
• M26: 47,517,370 km (0.065 R)
• M27: 51,449,400 km (0.105 R)
• M28: 53,584,461 km (0.058 R)
• M29: 55,592,962 km (0.118 R)
• M30: 56,149,167 km (0.085 R)
• M31: 59,179,272 km (0.119 R)
• M32: 60,930,614 km (0.117 R)
• M33: 68,494,432 km (0.059 R)
• M34: 68,707,160 km (0.07 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361.9

Radius: 3.1

Gravity: 37.66 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 10.52 AU - 11.54 AU

Year: 24031 Days

Day: 18.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,520,770 km

• M1: 43,683 km (0.091 R)
• M2: 174,282 km (0.082 R)
• M3: 297,251 km (0.067 R)
• M4: 553,811 km (0.09 R)
• M5: 729,140 km (0.066 R)
• M6: 1,259,764 km (0.094 R)
• M7: 1,515,277 km (0.117 R)
• M8: 2,009,997 km (0.055 R)
• M9: 5,486,203 km (0.085 R)
• M10: 7,674,820 km (0.102 R)
• M11: 9,418,981 km (0.118 R)
• M12: 11,348,195 km (0.102 R)
• M13: 27,515,088 km (0.101 R)
• M14: 35,880,900 km (0.109 R)
• M15: 36,691,421 km (0.105 R)
• M16: 44,233,098 km (0.081 R)
• M17: 48,363,944 km (0.092 R)
• M18: 49,352,338 km (0.098 R)
• M19: 50,691,089 km (0.04 R)
• M20: 53,791,355 km (0.094 R)
• M21: 65,035,131 km (0.05 R)
• M22: 66,846,013 km (0.12 R)
• M23: 67,049,317 km (0.115 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 218 - 13,900 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit