🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.2

Radius: 10.4

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.56 AU - 0.62 AU

Year: 307 Days

Day: 14.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,995,024 km

• M1: 129,552 km (0.114 R)
• M2: 559,496 km (0.107 R)
• M3: 938,278 km (0.027 R)
• M4: 1,456,036 km (0.04 R)
• M5: 1,908,719 km (0.029 R)
• M6: 2,631,127 km (0.068 R)
• M7: 4,112,445 km (0.05 R)
• M8: 4,481,204 km (0.054 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.5

Radius: 9.5

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.52 AU - 0.78 AU

Year: 355 Days

Day: 11.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 74,995,024 km

• M1: 118,332 km (0.098 R)
• M2: 540,796 km (0.106 R)
• M3: 891,753 km (0.106 R)
• M4: 1,218,923 km (0.116 R)
• M5: 2,714,603 km (0.057 R)
• M6: 3,663,951 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.6

Radius: 9.8

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.57 AU - 0.83 AU

Year: 397 Days

Day: 11.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,995,024 km

• M1: 122,072 km (0.105 R)
• M2: 575,054 km (0.106 R)
• M3: 903,122 km (0.08 R)
• M4: 1,231,490 km (0.098 R)
• M5: 1,606,232 km (0.114 R)
• M6: 1,921,285 km (0.069 R)
• M7: 2,412,714 km (0.102 R)
• M8: 2,748,562 km (0.059 R)
• M9: 3,317,333 km (0.04 R)
• M10: 4,336,393 km (0.047 R)
• M11: 4,941,068 km (0.066 R)
• M12: 5,358,745 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.1

Radius: 14.1

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.79 AU - 0.79 AU

Year: 476 Days

Day: 11 Hours

Environment

Temp: -170 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,995,024 km

• M1: 183,407 km (0.104 R)
• M2: 654,191 km (0.092 R)
• M3: 1,679,984 km (0.055 R)
• M4: 2,392,220 km (0.061 R)
• M5: 3,027,263 km (0.057 R)
• M6: 4,307,222 km (0.095 R)
• M7: 4,827,523 km (0.116 R)
• M8: 5,372,658 km (0.052 R)
• M9: 6,014,283 km (0.058 R)
• M10: 6,686,576 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.1

Radius: 14

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.3 AU - 1.5 AU

Year: 1124 Days

Day: 11.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,995,024 km

• M1: 174,132 km (0.039 R)
• M2: 634,145 km (0.11 R)
• M3: 1,365,679 km (0.091 R)
• M4: 1,861,297 km (0.071 R)
• M5: 2,813,487 km (0.098 R)
• M6: 3,317,632 km (0.058 R)
• M7: 3,769,866 km (0.064 R)
• M8: 5,364,580 km (0.052 R)
• M9: 5,802,453 km (0.1 R)
• M10: 6,565,402 km (0.112 R)
• M11: 7,416,464 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.6

Radius: 12.4

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.78 AU - 2.04 AU

Year: 1790 Days

Day: 12.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,995,024 km

• M1: 154,235 km (0.115 R)
• M2: 570,566 km (0.113 R)
• M3: 985,700 km (0.099 R)
• M4: 1,481,767 km (0.045 R)
• M5: 2,291,091 km (0.074 R)
• M6: 2,723,878 km (0.103 R)
• M7: 3,992,468 km (0.049 R)
• M8: 4,530,721 km (0.056 R)
• M9: 4,935,832 km (0.084 R)
• M10: 5,323,440 km (0.03 R)
• M11: 6,045,250 km (0.092 R)
• M12: 9,477,923 km (0.05 R)
• M13: 10,774,039 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.9

Radius: 11.3

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.05 AU - 2.55 AU

Year: 2366 Days

Day: 7.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,995,024 km

• M1: 141,968 km (0.026 R)
• M2: 507,735 km (0.119 R)
• M3: 1,041,201 km (0.1 R)
• M4: 1,423,873 km (0.057 R)
• M5: 2,003,415 km (0.099 R)
• M6: 2,822,164 km (0.12 R)
• M7: 3,796,944 km (0.103 R)
• M8: 4,187,095 km (0.078 R)
• M9: 4,707,396 km (0.091 R)
• M10: 6,249,301 km (0.113 R)
• M11: 8,286,525 km (0.068 R)
• M12: 8,786,481 km (0.107 R)
• M13: 9,141,627 km (0.111 R)
• M14: 9,846,681 km (0.095 R)
• M15: 10,953,257 km (0.095 R)
• M16: 12,300,236 km (0.11 R)
• M17: 15,413,368 km (0.067 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.8

Radius: 9.9

Gravity: 8.14 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3.27 AU - 5.45 AU

Year: 6175 Days

Day: 6.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,995,024 km

• M1: 123,269 km (0.067 R)
• M2: 543,788 km (0.094 R)
• M3: 906,114 km (0.101 R)
• M4: 2,438,146 km (0.044 R)
• M5: 3,400,210 km (0.089 R)
• M6: 4,004,436 km (0.088 R)
• M7: 4,733,725 km (0.053 R)
• M8: 11,183,189 km (0.091 R)
• M9: 12,148,095 km (0.087 R)
• M10: 14,713,100 km (0.09 R)
• M11: 17,219,912 km (0.04 R)
• M12: 18,435,843 km (0.099 R)
• M13: 20,439,707 km (0.048 R)
• M14: 23,629,881 km (0.113 R)
• M15: 28,043,018 km (0.113 R)

Asteroid Belt

Center: 6.73 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 759.3

Radius: 4.3

Gravity: 41.07 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 8.86 AU - 9.32 AU

Year: 18588 Days

Day: 23.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 74,995,024 km

• M1: 54,902 km (0.059 R)
• M2: 233,821 km (0.104 R)
• M3: 390,151 km (0.025 R)
• M4: 609,163 km (0.108 R)
• M5: 862,432 km (0.058 R)
• M6: 1,115,551 km (0.091 R)
• M7: 1,296,116 km (0.092 R)
• M8: 2,016,729 km (0.047 R)
• M9: 2,795,984 km (0.056 R)
• M10: 4,230,927 km (0.069 R)
• M11: 4,885,866 km (0.106 R)
• M12: 6,011,890 km (0.112 R)
• M13: 6,928,177 km (0.113 R)
• M14: 7,066,255 km (0.113 R)
• M15: 10,289,790 km (0.111 R)
• M16: 10,712,853 km (0.103 R)
• M17: 11,593,835 km (0.102 R)
• M18: 14,903,538 km (0.063 R)
• M19: 18,792,335 km (0.071 R)
• M20: 19,151,519 km (0.103 R)
• M21: 23,930,723 km (0.082 R)
• M22: 24,672,429 km (0.083 R)
• M23: 25,758,360 km (0.108 R)
• M24: 28,612,089 km (0.095 R)
• M25: 30,421,625 km (0.119 R)
• M26: 31,922,989 km (0.086 R)
• M27: 34,802,748 km (0.061 R)
• M28: 36,029,002 km (0.049 R)
• M29: 44,630,430 km (0.097 R)
• M30: 46,893,846 km (0.109 R)
• M31: 47,554,470 km (0.063 R)
• M32: 47,887,026 km (0.113 R)
• M33: 51,473,037 km (0.117 R)
• M34: 56,155,750 km (0.037 R)
• M35: 64,103,735 km (0.07 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 214 - 17,341 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit