🌌 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: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.5

Radius: 9.3

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.6 AU - 0.96 AU

Year: 476 Days

Day: 12.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,359,256 km

• M1: 115,789 km (0.116 R)
• M2: 474,674 km (0.097 R)
• M3: 842,685 km (0.112 R)
• M4: 1,180,028 km (0.108 R)
• M5: 1,634,357 km (0.057 R)
• M6: 2,153,910 km (0.088 R)
• M7: 2,601,657 km (0.074 R)
• M8: 3,603,214 km (0.093 R)
• M9: 4,021,789 km (0.057 R)
• M10: 4,485,842 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.7

Radius: 10.4

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.31 AU - 3.29 AU

Year: 3234 Days

Day: 13.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,359,256 km

• M1: 129,402 km (0.066 R)
• M2: 473,776 km (0.102 R)
• M3: 810,970 km (0.115 R)
• M4: 1,640,191 km (0.064 R)
• M5: 5,001,506 km (0.102 R)
• M6: 8,024,579 km (0.08 R)
• M7: 8,888,058 km (0.113 R)
• M8: 9,223,158 km (0.071 R)
• M9: 10,837,169 km (0.103 R)
• M10: 11,851,293 km (0.109 R)
• M11: 13,402,024 km (0.101 R)
• M12: 15,083,953 km (0.028 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.4

Radius: 10.3

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.89 AU - 3.43 AU

Year: 3877 Days

Day: 11.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 79,359,256 km

• M1: 128,355 km (0.065 R)
• M2: 650,601 km (0.09 R)
• M3: 1,010,384 km (0.053 R)
• M4: 1,506,151 km (0.1 R)
• M5: 2,416,305 km (0.073 R)
• M6: 2,790,748 km (0.044 R)
• M7: 3,168,184 km (0.099 R)
• M8: 3,942,801 km (0.115 R)
• M9: 4,791,021 km (0.118 R)
• M10: 5,595,858 km (0.116 R)
• M11: 6,256,781 km (0.1 R)
• M12: 6,606,392 km (0.048 R)
• M13: 8,171,784 km (0.095 R)
• M14: 9,776,221 km (0.104 R)
• M15: 10,168,466 km (0.116 R)
• M16: 11,322,614 km (0.078 R)
• M17: 12,885,762 km (0.07 R)
• M18: 13,214,878 km (0.109 R)
• M19: 14,791,489 km (0.119 R)
• M20: 15,945,936 km (0.063 R)
• M21: 17,272,570 km (0.085 R)
• M22: 21,168,547 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.9

Radius: 14.5

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.07 AU - 5.31 AU

Year: 7011 Days

Day: 6.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 79,359,256 km

• M1: 181,462 km (0.079 R)
• M2: 659,727 km (0.094 R)
• M3: 1,224,159 km (0.077 R)
• M4: 1,688,810 km (0.099 R)
• M5: 2,348,836 km (0.062 R)
• M6: 3,012,153 km (0.1 R)
• M7: 4,944,658 km (0.068 R)
• M8: 6,190,360 km (0.112 R)
• M9: 9,024,043 km (0.068 R)
• M10: 9,819,155 km (0.05 R)
• M11: 11,918,762 km (0.11 R)
• M12: 13,936,837 km (0.099 R)
• M13: 16,520,242 km (0.119 R)
• M14: 25,073,650 km (0.067 R)
• M15: 27,373,718 km (0.102 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 721.4

Radius: 4.5

Gravity: 35.62 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 4.88 AU - 7.62 AU

Year: 10785 Days

Day: 22.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 79,359,256 km

• M1: 55,950 km (0.111 R)
• M2: 250,427 km (0.077 R)
• M3: 1,627,026 km (0.068 R)
• M4: 1,847,384 km (0.1 R)
• M5: 1,999,376 km (0.079 R)
• M6: 2,348,088 km (0.119 R)
• M7: 2,889,483 km (0.069 R)
• M8: 4,662,517 km (0.04 R)
• M9: 6,307,495 km (0.038 R)
• M10: 7,683,197 km (0.104 R)
• M11: 7,857,179 km (0.068 R)
• M12: 8,303,729 km (0.032 R)
• M13: 8,579,737 km (0.069 R)
• M14: 9,101,385 km (0.06 R)
• M15: 10,902,244 km (0.111 R)
• M16: 11,914,872 km (0.087 R)
• M17: 15,464,680 km (0.045 R)
• M18: 18,625,832 km (0.103 R)
• M19: 20,315,540 km (0.113 R)
• M20: 20,564,920 km (0.092 R)
• M21: 20,732,320 km (0.061 R)
• M22: 22,723,617 km (0.083 R)
• M23: 24,368,296 km (0.067 R)
• M24: 44,818,624 km (0.037 R)
• M25: 47,103,882 km (0.108 R)
• M26: 48,127,729 km (0.103 R)
• M27: 50,675,680 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.8

Radius: 6.2

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.14 AU - 7.64 AU

Year: 12484 Days

Day: 20.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 79,359,256 km

• M1: 82,428 km (0.081 R)
• M2: 314,754 km (0.085 R)
• M3: 517,908 km (0.09 R)
• M4: 757,863 km (0.105 R)
• M5: 1,282,353 km (0.109 R)
• M6: 2,086,591 km (0.029 R)
• M7: 2,383,393 km (0.088 R)
• M8: 3,358,173 km (0.099 R)
• M9: 3,673,226 km (0.069 R)
• M10: 4,336,693 km (0.106 R)
• M11: 4,793,714 km (0.119 R)
• M12: 5,193,739 km (0.101 R)
• M13: 6,493,894 km (0.104 R)
• M14: 7,725,683 km (0.082 R)
• M15: 9,944,818 km (0.115 R)
• M16: 10,786,306 km (0.118 R)
• M17: 11,175,111 km (0.107 R)
• M18: 12,135,978 km (0.073 R)
• M19: 13,990,842 km (0.066 R)
• M20: 14,453,398 km (0.064 R)
• M21: 18,116,302 km (0.103 R)
• M22: 18,527,247 km (0.097 R)
• M23: 19,084,948 km (0.082 R)
• M24: 19,942,294 km (0.092 R)
• M25: 23,225,668 km (0.101 R)
• M26: 24,451,024 km (0.061 R)
• M27: 26,150,905 km (0.029 R)
• M28: 29,689,493 km (0.096 R)
• M29: 30,452,891 km (0.099 R)
• M30: 30,839,302 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.5

Radius: 3.9

Gravity: 40.27 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 6.37 AU - 8.93 AU

Year: 14605 Days

Day: 24.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 79,359,256 km

• M1: 48,470 km (0.098 R)
• M2: 178,919 km (0.119 R)
• M3: 443,109 km (0.083 R)
• M4: 567,724 km (0.088 R)
• M5: 819,348 km (0.093 R)
• M6: 1,010,384 km (0.079 R)
• M7: 1,869,824 km (0.118 R)
• M8: 2,508,756 km (0.057 R)
• M9: 2,728,366 km (0.081 R)
• M10: 3,231,015 km (0.098 R)
• M11: 4,672,689 km (0.037 R)
• M12: 5,981,970 km (0.098 R)
• M13: 7,697,858 km (0.062 R)
• M14: 8,891,050 km (0.065 R)
• M15: 9,930,456 km (0.114 R)
• M16: 10,647,778 km (0.096 R)
• M17: 10,818,170 km (0.052 R)
• M18: 11,106,146 km (0.048 R)
• M19: 12,686,498 km (0.083 R)
• M20: 12,877,983 km (0.115 R)
• M21: 13,463,958 km (0.115 R)
• M22: 13,663,222 km (0.048 R)
• M23: 13,931,900 km (0.103 R)
• M24: 17,752,929 km (0.025 R)
• M25: 17,912,400 km (0.113 R)
• M26: 18,478,179 km (0.089 R)
• M27: 27,589,288 km (0.069 R)
• M28: 31,965,624 km (0.073 R)
• M29: 33,399,969 km (0.106 R)
• M30: 38,356,894 km (0.084 R)
• M31: 39,430,857 km (0.092 R)
• M32: 44,954,908 km (0.101 R)
• M33: 48,910,575 km (0.111 R)
• M34: 55,099,738 km (0.075 R)
• M35: 55,609,418 km (0.097 R)
• M36: 55,780,109 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 841.7

Radius: 4.9

Gravity: 35.06 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 5.96 AU - 9.9 AU

Year: 15414 Days

Day: 24.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 79,359,256 km

• M1: 61,036 km (0.067 R)
• M2: 608,564 km (0.111 R)
• M3: 2,100,055 km (0.088 R)
• M4: 2,432,312 km (0.117 R)
• M5: 3,071,693 km (0.106 R)
• M6: 3,444,341 km (0.043 R)
• M7: 3,876,380 km (0.064 R)
• M8: 4,279,247 km (0.101 R)
• M9: 4,778,306 km (0.047 R)
• M10: 8,015,304 km (0.109 R)
• M11: 9,247,692 km (0.037 R)
• M12: 10,425,027 km (0.116 R)
• M13: 12,275,403 km (0.081 R)
• M14: 12,537,648 km (0.036 R)
• M15: 13,278,008 km (0.106 R)
• M16: 14,845,345 km (0.109 R)
• M17: 20,008,566 km (0.11 R)
• M18: 21,868,815 km (0.068 R)
• M19: 26,578,455 km (0.091 R)
• M20: 28,591,594 km (0.107 R)
• M21: 30,225,951 km (0.112 R)
• M22: 31,308,890 km (0.037 R)
• M23: 37,113,885 km (0.083 R)
• M24: 52,494,940 km (0.108 R)
• M25: 53,185,633 km (0.111 R)
• M26: 53,359,167 km (0.082 R)
• M27: 57,092,980 km (0.099 R)
• M28: 62,917,274 km (0.094 R)
• M29: 64,679,387 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 827.8

Radius: 7.2

Gravity: 15.97 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 8.87 AU - 10.23 AU

Year: 20371 Days

Day: 21.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 79,359,256 km

• M1: 97,987 km (0.059 R)
• M2: 444,455 km (0.064 R)
• M3: 1,294,770 km (0.076 R)
• M4: 1,907,971 km (0.094 R)
• M5: 2,507,560 km (0.096 R)
• M6: 2,775,041 km (0.107 R)
• M7: 4,342,677 km (0.028 R)
• M8: 4,766,487 km (0.049 R)
• M9: 7,911,783 km (0.115 R)
• M10: 9,266,990 km (0.074 R)
• M11: 9,731,641 km (0.053 R)
• M12: 9,969,651 km (0.105 R)
• M13: 11,154,017 km (0.118 R)
• M14: 11,813,893 km (0.067 R)
• M15: 13,725,006 km (0.119 R)
• M16: 15,670,227 km (0.112 R)
• M17: 20,975,267 km (0.067 R)
• M18: 23,225,817 km (0.095 R)
• M19: 25,294,906 km (0.075 R)
• M20: 25,519,602 km (0.079 R)
• M21: 33,434,975 km (0.029 R)
• M22: 34,526,740 km (0.086 R)
• M23: 35,221,023 km (0.087 R)
• M24: 35,501,220 km (0.096 R)
• M25: 37,944,303 km (0.119 R)
• M26: 45,608,950 km (0.059 R)
• M27: 46,781,797 km (0.109 R)
• M28: 56,705,522 km (0.075 R)
• M29: 66,224,434 km (0.038 R)
• M30: 73,967,171 km (0.071 R)
• M31: 76,990,095 km (0.036 R)
• M32: 79,130,542 km (0.222 R)
• M33: 80,336,600 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 714.9

Radius: 7.2

Gravity: 13.79 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 8.1 AU - 11.3 AU

Year: 20853 Days

Day: 16.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 79,359,256 km

• M1: 90,208 km (0.075 R)
• M2: 384,766 km (0.116 R)
• M3: 742,903 km (0.118 R)
• M4: 2,208,513 km (0.101 R)
• M5: 2,810,794 km (0.113 R)
• M6: 3,606,057 km (0.087 R)
• M7: 4,072,353 km (0.094 R)
• M8: 8,856,194 km (0.066 R)
• M9: 10,238,029 km (0.115 R)
• M10: 12,364,713 km (0.041 R)
• M11: 16,703,201 km (0.071 R)
• M12: 20,100,120 km (0.079 R)
• M13: 25,792,169 km (0.03 R)
• M14: 30,172,694 km (0.095 R)
• M15: 30,800,257 km (0.114 R)
• M16: 37,852,001 km (0.108 R)
• M17: 54,663,960 km (0.119 R)
• M18: 55,035,710 km (0.076 R)
• M19: 64,676,994 km (0.078 R)
• M20: 65,719,841 km (0.097 R)
• M21: 69,784,864 km (0.092 R)
• M22: 73,110,275 km (0.039 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: 432 - 17,016 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit