🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.6

Radius: 12.8

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.63 AU - 0.91 AU

Year: 458 Days

Day: 12.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,545,616 km

• M1: 159,322 km (0.111 R)
• M2: 666,907 km (0.12 R)
• M3: 1,071,869 km (0.076 R)
• M4: 1,538,764 km (0.071 R)
• M5: 2,033,185 km (0.092 R)
• M6: 2,516,087 km (0.097 R)
• M7: 3,031,302 km (0.083 R)
• M8: 3,493,709 km (0.062 R)
• M9: 4,165,553 km (0.071 R)
• M10: 4,891,551 km (0.12 R)
• M11: 5,350,218 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.2

Radius: 12.7

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.72 AU - 0.96 AU

Year: 522 Days

Day: 5.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 50,545,616 km

• M1: 157,975 km (0.088 R)
• M2: 626,516 km (0.091 R)
• M3: 1,060,948 km (0.099 R)
• M4: 2,000,872 km (0.095 R)
• M5: 3,161,153 km (0.065 R)
• M6: 3,638,968 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.5

Radius: 11.8

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.21 AU - 1.33 AU

Year: 971 Days

Day: 7.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,545,616 km

• M1: 148,850 km (0.061 R)
• M2: 524,789 km (0.085 R)
• M3: 896,241 km (0.108 R)
• M4: 1,621,791 km (0.075 R)
• M5: 2,103,944 km (0.056 R)
• M6: 2,755,443 km (0.093 R)
• M7: 3,191,671 km (0.083 R)
• M8: 4,501,998 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.3

Radius: 13.3

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.4 AU - 1.56 AU

Year: 1221 Days

Day: 10.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,545,616 km

• M1: 165,455 km (0.069 R)
• M2: 649,105 km (0.114 R)
• M3: 1,132,456 km (0.082 R)
• M4: 1,588,430 km (0.039 R)
• M5: 2,157,949 km (0.12 R)
• M6: 2,637,261 km (0.088 R)
• M7: 3,143,949 km (0.03 R)
• M8: 3,715,413 km (0.107 R)
• M9: 5,400,782 km (0.089 R)
• M10: 6,178,242 km (0.067 R)
• M11: 8,012,013 km (0.091 R)
• M12: 9,175,585 km (0.113 R)
• M13: 11,549,704 km (0.077 R)
• M14: 12,575,197 km (0.026 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.8

Radius: 11.4

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.85 AU - 6.21 AU

Year: 7651 Days

Day: 10.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,545,616 km

• M1: 143,764 km (0.061 R)
• M2: 546,331 km (0.114 R)
• M3: 957,576 km (0.069 R)
• M4: 1,319,902 km (0.084 R)
• M5: 2,201,183 km (0.099 R)
• M6: 2,593,129 km (0.087 R)
• M7: 3,299,231 km (0.105 R)
• M8: 4,387,406 km (0.062 R)
• M9: 4,884,520 km (0.102 R)
• M10: 5,558,458 km (0.119 R)
• M11: 6,764,816 km (0.038 R)
• M12: 7,743,335 km (0.11 R)
• M13: 8,508,977 km (0.036 R)
• M14: 10,405,429 km (0.116 R)
• M15: 11,065,904 km (0.113 R)
• M16: 11,660,855 km (0.026 R)
• M17: 14,524,607 km (0.111 R)
• M18: 17,034,111 km (0.111 R)
• M19: 20,356,829 km (0.107 R)
• M20: 21,180,964 km (0.102 R)
• M21: 21,601,185 km (0.047 R)
• M22: 25,717,669 km (0.074 R)
• M23: 27,171,162 km (0.058 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 208

Radius: 5.4

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 5.36 AU - 6.26 AU

Year: 9499 Days

Day: 20.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,545,616 km

• M1: 67,169 km (0.06 R)
• M2: 245,341 km (0.079 R)
• M3: 475,422 km (0.109 R)
• M4: 658,380 km (0.026 R)
• M5: 914,342 km (0.103 R)
• M6: 1,277,416 km (0.077 R)
• M7: 1,640,640 km (0.118 R)
• M8: 2,085,245 km (0.034 R)
• M9: 2,435,005 km (0.071 R)
• M10: 2,677,353 km (0.091 R)
• M11: 3,545,769 km (0.11 R)
• M12: 4,588,017 km (0.038 R)
• M13: 4,877,489 km (0.082 R)
• M14: 5,551,727 km (0.112 R)
• M15: 7,614,831 km (0.094 R)
• M16: 8,134,235 km (0.106 R)
• M17: 8,756,562 km (0.064 R)
• M18: 9,120,234 km (0.069 R)
• M19: 9,368,267 km (0.083 R)
• M20: 10,095,463 km (0.107 R)
• M21: 11,185,283 km (0.075 R)
• M22: 12,052,502 km (0.117 R)
• M23: 14,865,391 km (0.08 R)
• M24: 15,151,422 km (0.119 R)
• M25: 17,320,441 km (0.102 R)
• M26: 18,413,254 km (0.098 R)
• M27: 21,020,595 km (0.069 R)
• M28: 27,379,103 km (0.114 R)
• M29: 29,393,887 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 475.2

Radius: 4.7

Gravity: 21.51 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 7.16 AU - 8.98 AU

Year: 15549 Days

Day: 22.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 50,545,616 km

• M1: 64,327 km (0.102 R)
• M2: 309,368 km (0.114 R)
• M3: 616,044 km (0.111 R)
• M4: 854,802 km (0.111 R)
• M5: 1,024,147 km (0.068 R)
• M6: 2,140,446 km (0.105 R)
• M7: 3,131,233 km (0.087 R)
• M8: 3,645,251 km (0.092 R)
• M9: 3,894,033 km (0.072 R)
• M10: 4,364,368 km (0.118 R)
• M11: 4,806,280 km (0.113 R)
• M12: 5,038,157 km (0.07 R)
• M13: 7,341,964 km (0.086 R)
• M14: 8,480,554 km (0.12 R)
• M15: 9,523,849 km (0.054 R)
• M16: 10,103,242 km (0.052 R)
• M17: 12,656,877 km (0.088 R)
• M18: 12,845,221 km (0.077 R)
• M19: 13,035,510 km (0.062 R)
• M20: 13,227,593 km (0.058 R)
• M21: 14,832,928 km (0.089 R)
• M22: 20,506,876 km (0.109 R)
• M23: 22,464,364 km (0.083 R)
• M24: 22,926,023 km (0.077 R)
• M25: 23,393,965 km (0.082 R)
• M26: 23,772,897 km (0.108 R)
• M27: 24,738,102 km (0.098 R)
• M28: 26,336,256 km (0.107 R)
• M29: 31,541,664 km (0.109 R)
• M30: 34,019,902 km (0.091 R)
• M31: 36,624,850 km (0.116 R)
• M32: 37,651,241 km (0.106 R)
• M33: 38,564,985 km (0.093 R)
• M34: 40,982,187 km (0.079 R)
• M35: 42,367,613 km (0.051 R)
• M36: 42,648,558 km (0.118 R)
• M37: 50,707,993 km (0.093 R)
• M38: 54,594,247 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.9

Radius: 3.6

Gravity: 16.97 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 7.64 AU - 10.88 AU

Year: 19112 Days

Day: 17.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,545,616 km

• M1: 44,879 km (0.095 R)
• M2: 292,913 km (0.108 R)
• M3: 407,804 km (0.066 R)
• M4: 532,718 km (0.117 R)
• M5: 912,098 km (0.07 R)
• M6: 3,374,778 km (0.082 R)
• M7: 4,960,366 km (0.036 R)
• M8: 6,357,311 km (0.108 R)
• M9: 7,734,659 km (0.072 R)
• M10: 10,682,485 km (0.086 R)
• M11: 18,894,061 km (0.11 R)
• M12: 23,190,064 km (0.06 R)
• M13: 24,849,254 km (0.104 R)
• M14: 30,949,256 km (0.091 R)
• M15: 32,054,186 km (0.113 R)
• M16: 33,414,480 km (0.097 R)
• M17: 36,249,658 km (0.073 R)
• M18: 37,850,356 km (0.117 R)
• M19: 40,013,840 km (0.1 R)
• M20: 41,324,168 km (0.11 R)
• M21: 46,996,171 km (0.083 R)
• M22: 50,092,398 km (0.081 R)
• M23: 50,545,680 km (0.108 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: 271 - 16,307 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit