🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.7

Radius: 13.9

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.51 AU - 0.53 AU

Year: 259 Days

Day: 13.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,929,490 km

• M1: 173,085 km (0.088 R)
• M2: 623,674 km (0.077 R)
• M3: 1,575,266 km (0.085 R)
• M4: 2,578,469 km (0.106 R)
• M5: 3,087,401 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.5

Radius: 9.6

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.47 AU - 0.67 AU

Year: 297 Days

Day: 14.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,929,490 km

• M1: 119,379 km (0.069 R)
• M2: 487,988 km (0.102 R)
• M3: 847,173 km (0.092 R)
• M4: 1,253,630 km (0.094 R)
• M5: 1,809,386 km (0.118 R)
• M6: 2,212,253 km (0.075 R)
• M7: 2,647,284 km (0.065 R)
• M8: 3,067,804 km (0.087 R)
• M9: 3,444,641 km (0.091 R)
• M10: 3,947,289 km (0.117 R)
• M11: 4,394,288 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.9

Radius: 8.1

Gravity: 14.66 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.82 AU - 0.94 AU

Year: 570 Days

Day: 8.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,929,490 km

• M1: 100,679 km (0.095 R)
• M2: 382,821 km (0.113 R)
• M3: 653,593 km (0.112 R)
• M4: 963,261 km (0.097 R)
• M5: 1,322,744 km (0.038 R)
• M6: 1,584,840 km (0.102 R)
• M7: 2,524,913 km (0.082 R)
• M8: 3,029,806 km (0.102 R)
• M9: 3,504,929 km (0.115 R)
• M10: 3,781,984 km (0.104 R)
• M11: 4,317,694 km (0.104 R)
• M12: 4,669,398 km (0.117 R)
• M13: 4,971,287 km (0.108 R)
• M14: 6,474,147 km (0.03 R)
• M15: 6,765,414 km (0.042 R)
• M16: 7,065,358 km (0.103 R)
• M17: 7,807,812 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.2

Radius: 12.5

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.89 AU - 1.39 AU

Year: 840 Days

Day: 10.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 148.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,929,490 km

• M1: 155,582 km (0.107 R)
• M2: 828,473 km (0.105 R)
• M3: 1,231,789 km (0.118 R)
• M4: 1,877,752 km (0.091 R)
• M5: 2,813,188 km (0.068 R)
• M6: 5,213,037 km (0.093 R)
• M7: 5,968,057 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.3

Radius: 10.3

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.94 AU - 1.56 AU

Year: 965 Days

Day: 8.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,929,490 km

• M1: 128,205 km (0.116 R)
• M2: 502,798 km (0.025 R)
• M3: 936,632 km (0.117 R)
• M4: 2,175,901 km (0.116 R)
• M5: 4,817,799 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.9

Radius: 13.8

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.41 AU - 1.69 AU

Year: 1332 Days

Day: 12.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,929,490 km

• M1: 178,021 km (0.079 R)
• M2: 725,998 km (0.107 R)
• M3: 1,178,382 km (0.101 R)
• M4: 1,971,550 km (0.095 R)
• M5: 2,767,860 km (0.073 R)
• M6: 3,275,146 km (0.116 R)
• M7: 3,732,916 km (0.099 R)
• M8: 4,382,918 km (0.085 R)
• M9: 4,971,287 km (0.032 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.3

Radius: 10.7

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.6 AU - 5.92 AU

Year: 7168 Days

Day: 5.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,929,490 km

• M1: 133,890 km (0.093 R)
• M2: 903,422 km (0.094 R)
• M3: 1,317,359 km (0.099 R)
• M4: 1,700,479 km (0.118 R)
• M5: 2,219,284 km (0.089 R)
• M6: 4,213,723 km (0.108 R)
• M7: 4,924,912 km (0.044 R)
• M8: 6,296,425 km (0.113 R)
• M9: 8,359,379 km (0.106 R)
• M10: 10,476,189 km (0.117 R)
• M11: 12,774,312 km (0.093 R)
• M12: 14,761,121 km (0.068 R)
• M13: 16,335,489 km (0.118 R)
• M14: 17,257,012 km (0.109 R)
• M15: 17,826,381 km (0.071 R)
• M16: 19,338,517 km (0.056 R)
• M17: 19,815,136 km (0.098 R)
• M18: 20,792,159 km (0.054 R)
• M19: 24,071,943 km (0.094 R)
• M20: 24,544,373 km (0.041 R)
• M21: 26,246,946 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 226.9

Radius: 3.2

Gravity: 22.16 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 6.72 AU - 9.78 AU

Year: 16357 Days

Day: 15.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 61,929,490 km

• M1: 39,943 km (0.084 R)
• M2: 261,796 km (0.082 R)
• M3: 386,112 km (0.037 R)
• M4: 549,922 km (0.101 R)
• M5: 683,662 km (0.115 R)
• M6: 986,149 km (0.083 R)
• M7: 1,150,108 km (0.074 R)
• M8: 1,257,221 km (0.061 R)
• M9: 1,677,890 km (0.046 R)
• M10: 2,046,050 km (0.115 R)
• M11: 3,327,655 km (0.031 R)
• M12: 4,344,472 km (0.07 R)
• M13: 4,969,791 km (0.114 R)
• M14: 5,418,734 km (0.038 R)
• M15: 7,083,908 km (0.079 R)
• M16: 7,364,105 km (0.093 R)
• M17: 7,568,605 km (0.083 R)
• M18: 8,248,827 km (0.1 R)
• M19: 8,469,483 km (0.087 R)
• M20: 10,327,788 km (0.081 R)
• M21: 10,897,307 km (0.085 R)
• M22: 13,325,131 km (0.038 R)
• M23: 15,885,798 km (0.102 R)
• M24: 16,158,664 km (0.044 R)
• M25: 16,995,814 km (0.072 R)
• M26: 17,425,160 km (0.081 R)
• M27: 18,984,419 km (0.071 R)
• M28: 23,066,346 km (0.102 R)
• M29: 23,240,777 km (0.109 R)
• M30: 26,628,870 km (0.111 R)
• M31: 29,095,290 km (0.116 R)
• M32: 29,401,218 km (0.115 R)
• M33: 30,856,805 km (0.088 R)
• M34: 36,565,609 km (0.099 R)
• M35: 39,231,294 km (0.12 R)
• M36: 42,153,688 km (0.042 R)
• M37: 45,081,468 km (0.11 R)
• M38: 45,354,185 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 955.4

Radius: 6.9

Gravity: 20.07 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 7.16 AU - 9.6 AU

Year: 16745 Days

Day: 20.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 61,929,490 km

• M1: 85,869 km (0.081 R)
• M2: 490,083 km (0.079 R)
• M3: 1,089,970 km (0.079 R)
• M4: 1,366,277 km (0.097 R)
• M5: 1,741,768 km (0.105 R)
• M6: 2,376,811 km (0.096 R)
• M7: 2,921,646 km (0.097 R)
• M8: 3,403,800 km (0.056 R)
• M9: 4,323,678 km (0.117 R)
• M10: 4,913,392 km (0.108 R)
• M11: 9,014,768 km (0.087 R)
• M12: 11,001,128 km (0.073 R)
• M13: 13,475,327 km (0.071 R)
• M14: 13,690,898 km (0.087 R)
• M15: 15,895,223 km (0.107 R)
• M16: 17,717,624 km (0.118 R)
• M17: 23,491,503 km (0.102 R)
• M18: 24,865,859 km (0.082 R)
• M19: 40,322,161 km (0.09 R)
• M20: 41,221,843 km (0.115 R)
• M21: 42,288,326 km (0.098 R)
• M22: 47,067,679 km (0.081 R)
• M23: 48,400,297 km (0.104 R)
• M24: 50,446,347 km (0.084 R)
• M25: 52,018,172 km (0.101 R)
• M26: 55,259,359 km (0.071 R)
• M27: 58,441,605 km (0.085 R)
• M28: 61,942,046 km (0.081 R)
• M29: 64,148,614 km (0.082 R)
• M30: 65,785,963 km (0.095 R)
• M31: 70,864,811 km (0.087 R)
• M32: 74,168,231 km (0.056 R)
• M33: 74,840,972 km (0.167 R)
• M34: 75,517,903 km (0.205 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 526.9

Radius: 7.9

Gravity: 8.44 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.47 AU - 10.29 AU

Year: 16745 Days

Day: 15.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,929,490 km

• M1: 98,435 km (0.076 R)
• M2: 391,498 km (0.088 R)
• M3: 662,719 km (0.102 R)
• M4: 1,064,389 km (0.089 R)
• M5: 2,260,274 km (0.076 R)
• M6: 2,911,474 km (0.089 R)
• M7: 3,572,098 km (0.112 R)
• M8: 4,085,219 km (0.116 R)
• M9: 5,048,629 km (0.078 R)
• M10: 5,770,289 km (0.112 R)
• M11: 8,943,559 km (0.099 R)
• M12: 10,273,634 km (0.083 R)
• M13: 10,554,728 km (0.092 R)
• M14: 11,250,209 km (0.083 R)
• M15: 12,926,602 km (0.082 R)
• M16: 15,121,353 km (0.097 R)
• M17: 16,383,061 km (0.046 R)
• M18: 20,322,123 km (0.099 R)
• M19: 22,794,078 km (0.105 R)
• M20: 24,749,621 km (0.118 R)
• M21: 29,103,069 km (0.095 R)
• M22: 30,352,510 km (0.088 R)
• M23: 34,189,995 km (0.108 R)
• M24: 35,966,170 km (0.084 R)
• M25: 37,404,255 km (0.111 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: 179 - 19,236 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit