🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.4

Radius: 8.4

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.42 AU - 0.64 AU

Year: 271 Days

Day: 7.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,283,914 km

• M1: 104,569 km (0.079 R)
• M2: 469,139 km (0.118 R)
• M3: 922,570 km (0.05 R)
• M4: 1,208,003 km (0.114 R)
• M5: 1,472,342 km (0.035 R)
• M6: 1,834,818 km (0.115 R)
• M7: 2,279,273 km (0.09 R)
• M8: 2,560,816 km (0.116 R)
• M9: 3,507,322 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.5

Radius: 11.6

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.44 AU - 0.66 AU

Year: 287 Days

Day: 10.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,283,914 km

• M1: 144,212 km (0.071 R)
• M2: 507,586 km (0.044 R)
• M3: 906,114 km (0.078 R)
• M4: 1,605,484 km (0.116 R)
• M5: 1,993,242 km (0.086 R)
• M6: 2,528,503 km (0.065 R)
• M7: 2,972,061 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.5

Radius: 13.6

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.7 AU - 0.88 AU

Year: 494 Days

Day: 5.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,283,914 km

• M1: 169,644 km (0.1 R)
• M2: 607,367 km (0.108 R)
• M3: 1,032,375 km (0.083 R)
• M4: 1,479,673 km (0.048 R)
• M5: 2,018,823 km (0.093 R)
• M6: 2,503,371 km (0.117 R)
• M7: 3,612,789 km (0.038 R)
• M8: 4,048,567 km (0.116 R)
• M9: 4,476,716 km (0.058 R)
• M10: 5,826,837 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.7

Radius: 11.5

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.9 AU - 1.04 AU

Year: 672 Days

Day: 5.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,283,914 km

• M1: 143,016 km (0.115 R)
• M2: 636,090 km (0.104 R)
• M3: 1,103,135 km (0.098 R)
• M4: 1,593,367 km (0.101 R)
• M5: 2,256,235 km (0.117 R)
• M6: 2,668,826 km (0.12 R)
• M7: 4,221,353 km (0.092 R)
• M8: 5,021,103 km (0.072 R)
• M9: 5,565,789 km (0.06 R)
• M10: 5,937,988 km (0.086 R)
• M11: 6,609,084 km (0.119 R)
• M12: 7,091,238 km (0.069 R)
• M13: 7,664,348 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.9

Radius: 10.8

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.94 AU - 1.08 AU

Year: 713 Days

Day: 5.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,283,914 km

• M1: 134,339 km (0.093 R)
• M2: 541,993 km (0.079 R)
• M3: 925,562 km (0.115 R)
• M4: 1,322,146 km (0.059 R)
• M5: 2,089,134 km (0.091 R)
• M6: 5,150,655 km (0.11 R)
• M7: 6,068,438 km (0.087 R)
• M8: 6,731,605 km (0.106 R)
• M9: 7,178,454 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.4

Radius: 15

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.94 AU - 2.52 AU

Year: 2341 Days

Day: 9.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,283,914 km

• M1: 187,596 km (0.088 R)
• M2: 657,931 km (0.061 R)
• M3: 1,470,697 km (0.087 R)
• M4: 2,461,483 km (0.109 R)
• M5: 3,735,309 km (0.11 R)
• M6: 4,510,077 km (0.085 R)
• M7: 5,507,595 km (0.078 R)
• M8: 6,199,785 km (0.077 R)
• M9: 8,990,832 km (0.086 R)
• M10: 9,567,083 km (0.111 R)
• M11: 10,869,183 km (0.086 R)
• M12: 12,492,769 km (0.1 R)
• M13: 14,182,477 km (0.113 R)
• M14: 15,775,993 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.5

Radius: 8.9

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.11 AU - 3.01 AU

Year: 2879 Days

Day: 13 Hours

Environment

Temp: -198 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,283,914 km

• M1: 110,702 km (0.099 R)
• M2: 413,937 km (0.113 R)
• M3: 760,107 km (0.065 R)
• M4: 1,045,988 km (0.109 R)
• M5: 1,423,274 km (0.067 R)
• M6: 2,178,893 km (0.102 R)
• M7: 2,537,030 km (0.099 R)
• M8: 3,009,760 km (0.044 R)
• M9: 3,291,602 km (0.036 R)
• M10: 3,836,737 km (0.094 R)
• M11: 4,440,962 km (0.094 R)
• M12: 4,892,000 km (0.074 R)
• M13: 6,689,867 km (0.094 R)
• M14: 7,794,947 km (0.119 R)
• M15: 11,837,979 km (0.053 R)
• M16: 12,346,013 km (0.09 R)
• M17: 12,787,327 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.9

Radius: 9.2

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.51 AU - 4.55 AU

Year: 5687 Days

Day: 13.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,283,914 km

• M1: 114,442 km (0.047 R)
• M2: 430,692 km (0.108 R)
• M3: 1,255,575 km (0.113 R)
• M4: 1,547,740 km (0.088 R)
• M5: 2,511,449 km (0.03 R)
• M6: 2,801,519 km (0.112 R)
• M7: 4,337,441 km (0.119 R)
• M8: 4,681,665 km (0.049 R)
• M9: 5,259,562 km (0.07 R)
• M10: 5,884,283 km (0.114 R)
• M11: 6,338,013 km (0.095 R)
• M12: 7,045,611 km (0.043 R)
• M13: 9,445,161 km (0.118 R)
• M14: 10,629,527 km (0.116 R)
• M15: 10,940,541 km (0.092 R)
• M16: 12,391,491 km (0.108 R)
• M17: 12,736,164 km (0.087 R)
• M18: 15,785,867 km (0.117 R)
• M19: 17,944,564 km (0.098 R)
• M20: 19,887,990 km (0.073 R)
• M21: 21,682,566 km (0.064 R)
• M22: 22,765,505 km (0.106 R)
• M23: 23,657,557 km (0.106 R)
• M24: 25,195,872 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 210.8

Radius: 5.6

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 6.57 AU - 8.41 AU

Year: 14409 Days

Day: 23.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,283,914 km

• M1: 69,713 km (0.087 R)
• M2: 409,300 km (0.101 R)
• M3: 1,127,669 km (0.079 R)
• M4: 1,309,430 km (0.111 R)
• M5: 1,747,303 km (0.028 R)
• M6: 2,571,288 km (0.089 R)
• M7: 2,889,483 km (0.119 R)
• M8: 3,485,630 km (0.112 R)
• M9: 4,599,237 km (0.091 R)
• M10: 10,772,692 km (0.106 R)
• M11: 13,085,924 km (0.043 R)
• M12: 13,433,141 km (0.097 R)
• M13: 16,367,653 km (0.042 R)
• M14: 17,387,461 km (0.103 R)
• M15: 18,019,213 km (0.049 R)
• M16: 18,521,114 km (0.086 R)
• M17: 22,298,759 km (0.104 R)
• M18: 22,545,446 km (0.114 R)
• M19: 27,022,611 km (0.059 R)
• M20: 29,914,937 km (0.068 R)
• M21: 30,719,773 km (0.111 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: 411 - 10,644 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit