🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.9

Radius: 10.2

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.84 AU - 1.36 AU

Year: 796 Days

Day: 10.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,021,906 km

• M1: 127,158 km (0.04 R)
• M2: 475,572 km (0.115 R)
• M3: 935,435 km (0.076 R)
• M4: 1,398,740 km (0.114 R)
• M5: 1,813,725 km (0.051 R)
• M6: 2,756,042 km (0.069 R)
• M7: 3,302,822 km (0.099 R)
• M8: 4,310,812 km (0.096 R)
• M9: 4,741,355 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.8

Radius: 8.6

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.09 AU - 1.29 AU

Year: 896 Days

Day: 5.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,021,906 km

• M1: 107,262 km (0.043 R)
• M2: 454,030 km (0.096 R)
• M3: 811,568 km (0.03 R)
• M4: 1,470,697 km (0.113 R)
• M5: 1,969,157 km (0.107 R)
• M6: 2,241,724 km (0.088 R)
• M7: 2,804,661 km (0.113 R)
• M8: 3,098,920 km (0.114 R)
• M9: 3,436,263 km (0.057 R)
• M10: 4,133,838 km (0.115 R)
• M11: 4,530,123 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.6

Radius: 10.6

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.25 AU - 1.29 AU

Year: 988 Days

Day: 12.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 85,021,906 km

• M1: 131,796 km (0.077 R)
• M2: 503,995 km (0.116 R)
• M3: 865,424 km (0.108 R)
• M4: 1,211,593 km (0.062 R)
• M5: 1,781,112 km (0.094 R)
• M6: 2,322,507 km (0.101 R)
• M7: 2,798,378 km (0.078 R)
• M8: 3,193,615 km (0.098 R)
• M9: 3,564,169 km (0.097 R)
• M10: 4,148,648 km (0.096 R)
• M11: 4,573,057 km (0.072 R)
• M12: 4,929,399 km (0.087 R)
• M13: 5,365,328 km (0.102 R)
• M14: 6,337,564 km (0.101 R)
• M15: 8,024,131 km (0.058 R)
• M16: 8,657,079 km (0.074 R)
• M17: 9,622,883 km (0.092 R)
• M18: 10,789,597 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.4

Radius: 8

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.42 AU - 1.66 AU

Year: 1319 Days

Day: 5.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 85,021,906 km

• M1: 100,231 km (0.094 R)
• M2: 535,261 km (0.102 R)
• M3: 790,475 km (0.093 R)
• M4: 1,041,201 km (0.106 R)
• M5: 1,302,249 km (0.055 R)
• M6: 1,658,741 km (0.085 R)
• M7: 2,161,390 km (0.062 R)
• M8: 2,431,863 km (0.097 R)
• M9: 2,761,726 km (0.055 R)
• M10: 3,440,003 km (0.108 R)
• M11: 3,764,930 km (0.108 R)
• M12: 4,290,916 km (0.115 R)
• M13: 4,580,388 km (0.115 R)
• M14: 5,628,021 km (0.106 R)
• M15: 5,913,155 km (0.09 R)
• M16: 6,359,106 km (0.113 R)
• M17: 6,827,198 km (0.111 R)
• M18: 8,240,300 km (0.094 R)
• M19: 9,577,854 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.2

Radius: 8.3

Gravity: 12.23 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.04 AU - 3.9 AU

Year: 4462 Days

Day: 12.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 85,021,906 km

• M1: 103,223 km (0.08 R)
• M2: 400,174 km (0.055 R)
• M3: 684,859 km (0.093 R)
• M4: 1,177,036 km (0.12 R)
• M5: 1,580,202 km (0.099 R)
• M6: 2,073,426 km (0.119 R)
• M7: 2,665,984 km (0.049 R)
• M8: 2,973,856 km (0.107 R)
• M9: 3,533,203 km (0.046 R)
• M10: 4,137,129 km (0.072 R)
• M11: 5,238,917 km (0.052 R)
• M12: 5,521,059 km (0.104 R)
• M13: 7,155,715 km (0.083 R)
• M14: 7,433,219 km (0.11 R)
• M15: 8,771,970 km (0.067 R)
• M16: 10,177,442 km (0.101 R)
• M17: 13,323,635 km (0.078 R)
• M18: 13,850,968 km (0.061 R)
• M19: 14,228,403 km (0.041 R)
• M20: 19,442,038 km (0.094 R)
• M21: 22,104,282 km (0.105 R)
• M22: 23,370,479 km (0.037 R)
• M23: 26,128,166 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.3

Radius: 9.7

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.9 AU - 4.62 AU

Year: 5033 Days

Day: 9.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 85,021,906 km

• M1: 120,725 km (0.056 R)
• M2: 436,676 km (0.062 R)
• M3: 1,200,673 km (0.113 R)
• M4: 1,841,849 km (0.031 R)
• M5: 2,464,924 km (0.1 R)
• M6: 3,222,937 km (0.05 R)
• M7: 3,735,758 km (0.066 R)
• M8: 4,107,359 km (0.1 R)
• M9: 4,734,623 km (0.03 R)
• M10: 5,096,201 km (0.117 R)
• M11: 5,476,180 km (0.084 R)
• M12: 5,929,611 km (0.114 R)
• M13: 7,096,025 km (0.102 R)
• M14: 7,999,148 km (0.066 R)
• M15: 9,532,825 km (0.101 R)
• M16: 11,253,649 km (0.069 R)
• M17: 12,076,288 km (0.053 R)
• M18: 12,707,890 km (0.082 R)
• M19: 13,792,924 km (0.105 R)
• M20: 14,382,938 km (0.11 R)
• M21: 15,613,679 km (0.074 R)
• M22: 18,875,511 km (0.087 R)
• M23: 19,236,940 km (0.054 R)
• M24: 19,603,006 km (0.051 R)
• M25: 21,568,871 km (0.033 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.1

Radius: 9.2

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.75 AU - 5.53 AU

Year: 8044 Days

Day: 5.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 85,021,906 km

• M1: 114,442 km (0.055 R)
• M2: 467,194 km (0.111 R)
• M3: 950,694 km (0.071 R)
• M4: 1,957,638 km (0.115 R)
• M5: 2,463,578 km (0.095 R)
• M6: 5,087,076 km (0.108 R)
• M7: 6,433,905 km (0.096 R)
• M8: 7,048,304 km (0.115 R)
• M9: 10,082,148 km (0.111 R)
• M10: 11,985,183 km (0.111 R)
• M11: 13,397,686 km (0.053 R)
• M12: 16,613,143 km (0.078 R)
• M13: 16,928,794 km (0.106 R)
• M14: 17,248,485 km (0.103 R)
• M15: 23,083,699 km (0.062 R)
• M16: 24,930,036 km (0.086 R)
• M17: 28,551,950 km (0.11 R)
• M18: 29,833,256 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 863

Radius: 5.5

Gravity: 28.53 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 7.8 AU - 11.72 AU

Year: 21047 Days

Day: 20.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,021,906 km

• M1: 68,516 km (0.058 R)
• M2: 282,142 km (0.09 R)
• M3: 844,031 km (0.112 R)
• M4: 1,444,218 km (0.095 R)
• M5: 3,177,160 km (0.095 R)
• M6: 5,304,142 km (0.077 R)
• M7: 7,758,295 km (0.079 R)
• M8: 12,082,571 km (0.091 R)
• M9: 14,749,153 km (0.051 R)
• M10: 16,387,998 km (0.101 R)
• M11: 19,541,521 km (0.113 R)
• M12: 39,155,447 km (0.117 R)
• M13: 42,915,440 km (0.118 R)
• M14: 43,239,170 km (0.072 R)
• M15: 52,980,535 km (0.092 R)
• M16: 59,154,140 km (0.072 R)
• M17: 61,999,491 km (0.089 R)
• M18: 66,005,124 km (0.056 R)
• M19: 69,286,852 km (0.114 R)
• M20: 79,050,806 km (0.19 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: 218 - 15,827 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit