🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.7

Radius: 14.4

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.71 AU - 0.95 AU

Year: 481 Days

Day: 8.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,266,090 km

• M1: 179,218 km (0.085 R)
• M2: 676,332 km (0.101 R)
• M3: 1,241,214 km (0.103 R)
• M4: 1,871,469 km (0.045 R)
• M5: 2,367,087 km (0.107 R)
• M6: 3,030,703 km (0.059 R)
• M7: 3,722,743 km (0.033 R)
• M8: 4,585,474 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.5

Radius: 12.6

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.21 AU - 1.71 AU

Year: 1122 Days

Day: 5.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,266,090 km

• M1: 156,779 km (0.09 R)
• M2: 609,761 km (0.079 R)
• M3: 1,056,011 km (0.119 R)
• M4: 1,540,110 km (0.117 R)
• M5: 2,096,764 km (0.117 R)
• M6: 2,812,141 km (0.079 R)
• M7: 3,345,607 km (0.097 R)
• M8: 4,343,724 km (0.071 R)
• M9: 5,363,832 km (0.11 R)
• M10: 5,897,746 km (0.103 R)
• M11: 6,466,817 km (0.119 R)
• M12: 7,047,556 km (0.082 R)
• M13: 7,505,624 km (0.119 R)
• M14: 7,902,508 km (0.119 R)
• M15: 8,709,887 km (0.099 R)
• M16: 9,238,267 km (0.115 R)
• M17: 10,554,579 km (0.117 R)
• M18: 11,292,246 km (0.109 R)
• M19: 12,171,881 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.8

Radius: 11.8

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.98 AU - 2.74 AU

Year: 2305 Days

Day: 13.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 94.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,266,090 km

• M1: 146,756 km (0.113 R)
• M2: 572,810 km (0.028 R)
• M3: 1,043,744 km (0.074 R)
• M4: 1,794,277 km (0.09 R)
• M5: 2,537,479 km (0.115 R)
• M6: 2,918,505 km (0.097 R)
• M7: 4,519,950 km (0.109 R)
• M8: 5,917,942 km (0.114 R)
• M9: 6,285,205 km (0.12 R)
• M10: 6,716,795 km (0.114 R)
• M11: 7,693,071 km (0.094 R)
• M12: 8,385,409 km (0.11 R)
• M13: 9,058,600 km (0.084 R)
• M14: 10,446,719 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.1

Radius: 10.3

Gravity: 5.99 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.75 AU - 3.36 AU

Year: 3387 Days

Day: 11.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,266,090 km

• M1: 128,056 km (0.075 R)
• M2: 794,365 km (0.082 R)
• M3: 1,226,104 km (0.099 R)
• M4: 1,661,733 km (0.095 R)
• M5: 2,398,503 km (0.105 R)
• M6: 2,967,723 km (0.095 R)
• M7: 3,358,472 km (0.091 R)
• M8: 4,030,316 km (0.117 R)
• M9: 4,602,678 km (0.076 R)
• M10: 5,992,292 km (0.064 R)
• M11: 8,176,122 km (0.056 R)
• M12: 10,761,921 km (0.113 R)
• M13: 11,219,392 km (0.052 R)
• M14: 12,217,808 km (0.118 R)
• M15: 12,670,042 km (0.1 R)
• M16: 13,133,347 km (0.115 R)
• M17: 14,491,097 km (0.046 R)
• M18: 15,569,099 km (0.107 R)
• M19: 15,940,102 km (0.11 R)
• M20: 16,317,089 km (0.051 R)
• M21: 17,426,806 km (0.091 R)
• M22: 18,467,857 km (0.083 R)
• M23: 22,305,342 km (0.052 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 510.1

Radius: 6.2

Gravity: 13.27 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.93 AU - 7.25 AU

Year: 9556 Days

Day: 16.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 72,266,090 km

• M1: 77,193 km (0.067 R)
• M2: 306,526 km (0.071 R)
• M3: 637,137 km (0.115 R)
• M4: 1,630,617 km (0.107 R)
• M5: 2,422,289 km (0.076 R)
• M6: 3,398,864 km (0.047 R)
• M7: 3,834,792 km (0.067 R)
• M8: 4,334,598 km (0.102 R)
• M9: 5,691,002 km (0.101 R)
• M10: 5,891,015 km (0.097 R)
• M11: 6,234,940 km (0.096 R)
• M12: 6,775,886 km (0.102 R)
• M13: 7,746,327 km (0.108 R)
• M14: 8,117,330 km (0.079 R)
• M15: 8,939,520 km (0.047 R)
• M16: 12,117,876 km (0.09 R)
• M17: 12,730,928 km (0.046 R)
• M18: 13,189,745 km (0.086 R)
• M19: 13,659,333 km (0.084 R)
• M20: 14,201,027 km (0.114 R)
• M21: 14,446,218 km (0.076 R)
• M22: 16,043,773 km (0.114 R)
• M23: 17,334,055 km (0.095 R)
• M24: 21,376,788 km (0.101 R)
• M25: 22,188,655 km (0.1 R)
• M26: 23,020,868 km (0.064 R)
• M27: 23,787,557 km (0.08 R)
• M28: 25,102,822 km (0.083 R)
• M29: 25,732,928 km (0.118 R)
• M30: 26,651,309 km (0.077 R)
• M31: 27,781,970 km (0.105 R)
• M32: 35,582,602 km (0.063 R)
• M33: 39,192,548 km (0.096 R)
• M34: 39,433,550 km (0.115 R)
• M35: 40,776,490 km (0.079 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 278.2

Radius: 7.6

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 5.23 AU - 8.23 AU

Year: 11101 Days

Day: 21.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,266,090 km

• M1: 101,577 km (0.09 R)
• M2: 694,882 km (0.111 R)
• M3: 945,907 km (0.111 R)
• M4: 1,508,994 km (0.112 R)
• M5: 2,260,873 km (0.083 R)
• M6: 4,615,543 km (0.079 R)
• M7: 9,952,896 km (0.093 R)
• M8: 10,713,452 km (0.117 R)
• M9: 11,563,167 km (0.052 R)
• M10: 11,978,302 km (0.097 R)
• M11: 15,167,878 km (0.103 R)
• M12: 21,178,870 km (0.092 R)
• M13: 21,800,599 km (0.103 R)
• M14: 31,624,990 km (0.118 R)
• M15: 32,539,332 km (0.077 R)
• M16: 34,314,311 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 591.4

Radius: 5.4

Gravity: 20.28 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 6.8 AU - 11.32 AU

Year: 17339 Days

Day: 16.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 72,266,090 km

• M1: 67,169 km (0.072 R)
• M2: 899,532 km (0.115 R)
• M3: 1,481,019 km (0.092 R)
• M4: 1,672,055 km (0.094 R)
• M5: 2,223,473 km (0.118 R)
• M6: 2,746,019 km (0.079 R)
• M7: 5,483,959 km (0.119 R)
• M8: 5,749,645 km (0.042 R)
• M9: 6,986,969 km (0.095 R)
• M10: 7,164,392 km (0.06 R)
• M11: 7,482,138 km (0.069 R)
• M12: 8,292,958 km (0.098 R)
• M13: 9,481,214 km (0.111 R)
• M14: 9,753,781 km (0.094 R)
• M15: 14,930,765 km (0.095 R)
• M16: 16,210,575 km (0.116 R)
• M17: 16,837,390 km (0.091 R)
• M18: 17,076,597 km (0.041 R)
• M19: 19,771,004 km (0.093 R)
• M20: 20,758,949 km (0.116 R)
• M21: 21,685,259 km (0.119 R)
• M22: 27,059,263 km (0.107 R)
• M23: 30,110,162 km (0.059 R)
• M24: 35,691,210 km (0.109 R)
• M25: 42,363,574 km (0.108 R)
• M26: 44,455,550 km (0.112 R)
• M27: 45,219,098 km (0.03 R)
• M28: 49,006,168 km (0.109 R)
• M29: 50,810,468 km (0.117 R)
• M30: 53,170,225 km (0.111 R)
• M31: 56,310,284 km (0.091 R)
• M32: 57,564,064 km (0.102 R)
• M33: 57,925,792 km (0.119 R)
• M34: 59,203,357 km (0.117 R)
• M35: 59,387,363 km (0.09 R)
• M36: 60,686,321 km (0.102 R)
• M37: 64,696,591 km (0.092 R)
• M38: 64,891,816 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 773.1

Radius: 5

Gravity: 30.92 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 8.7 AU - 9.48 AU

Year: 17425 Days

Day: 17.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 72,266,090 km

• M1: 70,610 km (0.092 R)
• M2: 235,916 km (0.059 R)
• M3: 436,078 km (0.108 R)
• M4: 975,528 km (0.117 R)
• M5: 1,287,738 km (0.092 R)
• M6: 2,297,524 km (0.097 R)
• M7: 2,610,034 km (0.106 R)
• M8: 2,875,121 km (0.069 R)
• M9: 3,402,903 km (0.089 R)
• M10: 4,055,449 km (0.047 R)
• M11: 4,894,244 km (0.104 R)
• M12: 5,842,994 km (0.111 R)
• M13: 7,368,892 km (0.032 R)
• M14: 8,609,058 km (0.082 R)
• M15: 9,361,087 km (0.114 R)
• M16: 9,696,485 km (0.096 R)
• M17: 12,472,573 km (0.108 R)
• M18: 14,517,576 km (0.093 R)
• M19: 14,816,024 km (0.098 R)
• M20: 16,051,403 km (0.117 R)
• M21: 17,774,770 km (0.089 R)
• M22: 18,202,620 km (0.056 R)
• M23: 18,375,705 km (0.072 R)
• M24: 23,988,617 km (0.112 R)
• M25: 24,405,995 km (0.075 R)
• M26: 26,014,172 km (0.116 R)
• M27: 26,233,782 km (0.089 R)
• M28: 27,920,498 km (0.05 R)
• M29: 28,266,368 km (0.092 R)
• M30: 30,159,080 km (0.12 R)
• M31: 33,283,133 km (0.113 R)
• M32: 37,868,607 km (0.071 R)
• M33: 43,936,595 km (0.047 R)
• M34: 45,033,297 km (0.114 R)
• M35: 46,793,616 km (0.086 R)
• M36: 51,826,387 km (0.095 R)
• M37: 53,581,021 km (0.097 R)
• M38: 53,936,615 km (0.111 R)
• M39: 54,293,705 km (0.045 R)
• M40: 55,556,311 km (0.104 R)
• M41: 57,579,622 km (0.083 R)
• M42: 60,995,689 km (0.076 R)
• M43: 63,346,620 km (0.107 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 12,465 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit