🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245

Radius: 9.8

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.52 AU - 0.76 AU

Year: 341 Days

Day: 12.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,786,275 km

• M1: 121,922 km (0.066 R)
• M2: 861,534 km (0.089 R)
• M3: 1,190,350 km (0.088 R)
• M4: 1,833,771 km (0.046 R)
• M5: 2,186,672 km (0.094 R)
• M6: 2,922,095 km (0.073 R)
• M7: 3,308,207 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.1

Radius: 9.2

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1 AU - 1.14 AU

Year: 738 Days

Day: 12.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,786,275 km

• M1: 114,592 km (0.073 R)
• M2: 442,511 km (0.109 R)
• M3: 777,011 km (0.115 R)
• M4: 1,664,576 km (0.087 R)
• M5: 2,274,187 km (0.083 R)
• M6: 4,702,759 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.3

Radius: 9.2

Gravity: 11.38 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1 AU - 1.46 AU

Year: 910 Days

Day: 12.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,786,275 km

• M1: 114,442 km (0.09 R)
• M2: 444,006 km (0.091 R)
• M3: 802,293 km (0.076 R)
• M4: 1,093,860 km (0.111 R)
• M5: 1,386,623 km (0.09 R)
• M6: 2,222,276 km (0.113 R)
• M7: 2,578,020 km (0.111 R)
• M8: 3,275,146 km (0.036 R)
• M9: 3,896,426 km (0.055 R)
• M10: 5,576,111 km (0.083 R)
• M11: 6,040,313 km (0.12 R)
• M12: 6,326,644 km (0.113 R)
• M13: 6,714,850 km (0.079 R)
• M14: 7,742,438 km (0.064 R)
• M15: 8,054,499 km (0.083 R)
• M16: 8,815,354 km (0.101 R)
• M17: 9,893,206 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529

Radius: 13.1

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 3.42 AU - 5.08 AU

Year: 5843 Days

Day: 6.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 25,786,275 km

• M1: 162,912 km (0.086 R)
• M2: 694,134 km (0.063 R)
• M3: 1,212,341 km (0.074 R)
• M4: 1,637,349 km (0.074 R)
• M5: 2,856,871 km (0.101 R)
• M6: 3,460,049 km (0.115 R)
• M7: 4,007,428 km (0.091 R)
• M8: 5,824,593 km (0.086 R)
• M9: 7,034,092 km (0.101 R)
• M10: 8,520,048 km (0.119 R)
• M11: 10,337,662 km (0.092 R)
• M12: 11,197,700 km (0.109 R)
• M13: 14,011,486 km (0.091 R)
• M14: 21,353,899 km (0.045 R)
• M15: 25,717,819 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.6

Radius: 9.9

Gravity: 7.37 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 4.51 AU - 4.53 AU

Year: 6408 Days

Day: 5.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,786,275 km

• M1: 128,205 km (0.1 R)
• M2: 751,131 km (0.103 R)
• M3: 1,457,831 km (0.101 R)
• M4: 2,488,860 km (0.118 R)
• M5: 3,118,966 km (0.074 R)
• M6: 3,527,817 km (0.081 R)
• M7: 5,413,498 km (0.094 R)
• M8: 6,335,769 km (0.096 R)
• M9: 6,852,181 km (0.089 R)
• M10: 7,775,349 km (0.056 R)
• M11: 10,420,539 km (0.099 R)
• M12: 12,257,152 km (0.107 R)
• M13: 13,224,601 km (0.098 R)
• M14: 15,927,386 km (0.051 R)
• M15: 16,883,167 km (0.064 R)
• M16: 23,598,017 km (0.085 R)
• M17: 28,823,171 km (0.104 R)
• M18: 34,246,992 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.9

Radius: 13.9

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 4.21 AU - 5.77 AU

Year: 7433 Days

Day: 14.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 25,786,275 km

• M1: 179,517 km (0.104 R)
• M2: 960,269 km (0.094 R)
• M3: 2,060,561 km (0.102 R)
• M4: 2,524,763 km (0.082 R)
• M5: 3,766,426 km (0.108 R)
• M6: 4,425,853 km (0.091 R)
• M7: 5,065,085 km (0.093 R)
• M8: 6,472,651 km (0.065 R)
• M9: 8,028,469 km (0.106 R)
• M10: 8,947,149 km (0.067 R)
• M11: 9,523,849 km (0.11 R)
• M12: 10,474,843 km (0.09 R)
• M13: 11,656,068 km (0.049 R)
• M14: 12,213,769 km (0.028 R)
• M15: 12,924,508 km (0.1 R)
• M16: 13,756,871 km (0.06 R)
• M17: 15,072,135 km (0.052 R)
• M18: 16,257,399 km (0.078 R)
• M19: 17,063,283 km (0.049 R)
• M20: 17,670,949 km (0.092 R)
• M21: 19,283,465 km (0.112 R)
• M22: 20,309,257 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.5

Radius: 6.1

Gravity: 10.44 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 4.91 AU - 7.31 AU

Year: 10071 Days

Day: 23.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 25,786,275 km

• M1: 75,846 km (0.09 R)
• M2: 375,491 km (0.066 R)
• M3: 632,799 km (0.097 R)
• M4: 876,494 km (0.106 R)
• M5: 1,139,487 km (0.118 R)
• M6: 1,781,860 km (0.04 R)
• M7: 2,311,287 km (0.075 R)
• M8: 3,350,992 km (0.098 R)
• M9: 4,699,916 km (0.066 R)
• M10: 4,960,516 km (0.054 R)
• M11: 5,800,657 km (0.032 R)
• M12: 8,372,993 km (0.107 R)
• M13: 8,799,945 km (0.091 R)
• M14: 16,004,130 km (0.099 R)
• M15: 16,594,892 km (0.094 R)
• M16: 18,382,886 km (0.032 R)
• M17: 19,693,512 km (0.086 R)
• M18: 20,987,534 km (0.12 R)
• M19: 23,997,742 km (0.064 R)
• M20: 24,771,163 km (0.108 R)
• M21: 25,120,175 km (0.073 R)
• M22: 25,917,532 km (0.115 R)
• M23: 26,458,478 km (0.073 R)
• M24: 27,006,754 km (0.077 R)
• M25: 28,889,443 km (0.097 R)
• M26: 31,465,219 km (0.073 R)
• M27: 32,704,189 km (0.111 R)
• M28: 38,333,557 km (0.055 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 58

Radius: 6.6

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 7.01 AU - 7.89 AU

Year: 13560 Days

Day: 22.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,786,275 km

• M1: 175,927 km (0.086 R)
• M2: 605,123 km (0.045 R)
• M3: 1,014,274 km (0.077 R)
• M4: 1,241,812 km (0.086 R)
• M5: 1,932,505 km (0.108 R)
• M6: 2,424,383 km (0.094 R)
• M7: 3,431,925 km (0.118 R)
• M8: 7,952,174 km (0.09 R)
• M9: 9,165,712 km (0.054 R)
• M10: 12,280,040 km (0.072 R)
• M11: 20,757,453 km (0.112 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: 300 - 13,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit