🌌 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: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.3

Radius: 15

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.69 AU - 0.99 AU

Year: 497 Days

Day: 10.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,414,361 km

• M1: 186,549 km (0.102 R)
• M2: 835,205 km (0.104 R)
• M3: 1,348,475 km (0.114 R)
• M4: 1,837,959 km (0.052 R)
• M5: 2,342,553 km (0.109 R)
• M6: 3,313,742 km (0.112 R)
• M7: 4,755,567 km (0.078 R)
• M8: 5,742,314 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.7

Radius: 12.3

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.74 AU - 1.14 AU

Year: 588 Days

Day: 7.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 87,414,361 km

• M1: 157,078 km (0.118 R)
• M2: 541,395 km (0.09 R)
• M3: 941,120 km (0.038 R)
• M4: 1,438,234 km (0.046 R)
• M5: 2,328,341 km (0.104 R)
• M6: 2,782,072 km (0.076 R)
• M7: 3,214,559 km (0.093 R)
• M8: 4,791,321 km (0.101 R)
• M9: 5,239,965 km (0.113 R)
• M10: 5,665,870 km (0.03 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.2

Radius: 9

Gravity: 10.68 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.26 AU - 1.68 AU

Year: 1151 Days

Day: 6.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,414,361 km

• M1: 111,899 km (0.065 R)
• M2: 433,385 km (0.066 R)
• M3: 877,691 km (0.117 R)
• M4: 2,045,900 km (0.056 R)
• M5: 3,478,599 km (0.116 R)
• M6: 4,404,461 km (0.115 R)
• M7: 5,154,694 km (0.072 R)
• M8: 6,907,682 km (0.069 R)
• M9: 8,389,449 km (0.113 R)
• M10: 8,761,798 km (0.106 R)
• M11: 10,072,425 km (0.084 R)
• M12: 10,526,005 km (0.096 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 678.4

Radius: 4.3

Gravity: 36.69 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 5.8 AU - 6.36 AU

Year: 9680 Days

Day: 21.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 87,414,361 km

• M1: 53,556 km (0.077 R)
• M2: 192,981 km (0.071 R)
• M3: 557,551 km (0.11 R)
• M4: 982,858 km (0.063 R)
• M5: 1,314,367 km (0.058 R)
• M6: 1,541,157 km (0.109 R)
• M7: 1,954,496 km (0.109 R)
• M8: 2,718,493 km (0.074 R)
• M9: 3,439,704 km (0.12 R)
• M10: 3,818,486 km (0.066 R)
• M11: 4,569,467 km (0.085 R)
• M12: 6,248,254 km (0.101 R)
• M13: 6,469,510 km (0.071 R)
• M14: 8,342,924 km (0.075 R)
• M15: 11,345,652 km (0.118 R)
• M16: 12,410,639 km (0.092 R)
• M17: 12,937,673 km (0.087 R)
• M18: 13,849,023 km (0.047 R)
• M19: 16,209,228 km (0.07 R)
• M20: 17,556,806 km (0.062 R)
• M21: 18,220,572 km (0.099 R)
• M22: 21,875,697 km (0.096 R)
• M23: 22,044,892 km (0.034 R)
• M24: 27,633,868 km (0.098 R)
• M25: 28,430,477 km (0.116 R)
• M26: 28,935,968 km (0.081 R)
• M27: 34,553,518 km (0.083 R)
• M28: 35,711,256 km (0.088 R)
• M29: 36,775,046 km (0.1 R)
• M30: 41,241,440 km (0.058 R)
• M31: 42,543,390 km (0.116 R)
• M32: 43,337,606 km (0.103 R)
• M33: 43,604,488 km (0.103 R)
• M34: 44,006,906 km (0.1 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 433.9

Radius: 5.4

Gravity: 14.88 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 6.74 AU - 8.76 AU

Year: 13931 Days

Day: 19.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 87,414,361 km

• M1: 67,768 km (0.098 R)
• M2: 1,609,673 km (0.094 R)
• M3: 1,876,705 km (0.095 R)
• M4: 2,265,809 km (0.054 R)
• M5: 2,993,453 km (0.068 R)
• M6: 3,839,280 km (0.086 R)
• M7: 5,493,683 km (0.056 R)
• M8: 7,658,364 km (0.079 R)
• M9: 8,645,411 km (0.087 R)
• M10: 9,266,990 km (0.11 R)
• M11: 9,765,151 km (0.064 R)
• M12: 12,053,400 km (0.073 R)
• M13: 12,466,739 km (0.11 R)
• M14: 13,073,508 km (0.058 R)
• M15: 15,768,064 km (0.116 R)
• M16: 17,505,644 km (0.113 R)
• M17: 18,654,256 km (0.111 R)
• M18: 21,614,200 km (0.032 R)
• M19: 23,752,552 km (0.116 R)
• M20: 24,308,457 km (0.096 R)
• M21: 25,638,981 km (0.118 R)
• M22: 30,787,541 km (0.117 R)
• M23: 34,420,376 km (0.087 R)
• M24: 34,774,923 km (0.11 R)
• M25: 37,325,417 km (0.058 R)
• M26: 42,387,809 km (0.071 R)
• M27: 42,659,030 km (0.087 R)
• M28: 43,894,110 km (0.063 R)
• M29: 50,429,143 km (0.035 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 395.1

Radius: 7.5

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 6.4 AU - 10.2 AU

Year: 15439 Days

Day: 15.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 87,414,361 km

• M1: 106,514 km (0.11 R)
• M2: 393,293 km (0.104 R)
• M3: 652,097 km (0.072 R)
• M4: 1,129,015 km (0.055 R)
• M5: 1,501,364 km (0.077 R)
• M6: 2,166,177 km (0.038 R)
• M7: 2,810,196 km (0.053 R)
• M8: 3,177,160 km (0.114 R)
• M9: 3,549,808 km (0.082 R)
• M10: 4,035,253 km (0.111 R)
• M11: 4,323,528 km (0.062 R)
• M12: 4,974,129 km (0.075 R)
• M13: 5,723,764 km (0.095 R)
• M14: 6,051,383 km (0.116 R)
• M15: 7,617,823 km (0.038 R)
• M16: 8,471,428 km (0.066 R)
• M17: 9,042,443 km (0.096 R)
• M18: 10,155,751 km (0.086 R)
• M19: 10,910,023 km (0.078 R)
• M20: 12,835,348 km (0.084 R)
• M21: 17,877,843 km (0.038 R)
• M22: 18,578,859 km (0.1 R)
• M23: 20,621,917 km (0.112 R)
• M24: 21,741,507 km (0.063 R)
• M25: 29,429,791 km (0.119 R)
• M26: 30,847,231 km (0.059 R)
• M27: 31,516,681 km (0.115 R)
• M28: 32,884,305 km (0.109 R)
• M29: 35,372,267 km (0.055 R)
• M30: 40,453,209 km (0.11 R)
• M31: 42,752,528 km (0.052 R)
• M32: 45,711,425 km (0.077 R)
• M33: 49,256,894 km (0.119 R)
• M34: 49,560,279 km (0.108 R)
• M35: 50,786,682 km (0.113 R)
• M36: 51,407,513 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 255.8

Radius: 3.8

Gravity: 17.71 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 7.93 AU - 12.53 AU

Year: 21127 Days

Day: 15.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 87,414,361 km

• M1: 47,423 km (0.117 R)
• M2: 203,004 km (0.041 R)
• M3: 395,238 km (0.088 R)
• M4: 694,134 km (0.106 R)
• M5: 2,461,035 km (0.075 R)
• M6: 2,587,744 km (0.066 R)
• M7: 3,708,830 km (0.061 R)
• M8: 3,903,906 km (0.092 R)
• M9: 4,076,542 km (0.088 R)
• M10: 4,593,552 km (0.091 R)
• M11: 4,721,309 km (0.114 R)
• M12: 4,851,459 km (0.1 R)
• M13: 5,187,306 km (0.095 R)
• M14: 5,325,834 km (0.087 R)
• M15: 6,366,437 km (0.039 R)
• M16: 7,273,897 km (0.066 R)
• M17: 7,758,445 km (0.112 R)
• M18: 9,650,110 km (0.096 R)
• M19: 12,068,958 km (0.08 R)
• M20: 13,191,391 km (0.11 R)
• M21: 13,711,991 km (0.119 R)
• M22: 15,569,698 km (0.117 R)
• M23: 18,060,053 km (0.09 R)
• M24: 21,153,737 km (0.071 R)
• M25: 21,686,455 km (0.1 R)
• M26: 21,956,180 km (0.107 R)
• M27: 23,057,669 km (0.054 R)
• M28: 28,794,897 km (0.1 R)
• M29: 33,944,505 km (0.058 R)
• M30: 34,186,554 km (0.107 R)
• M31: 36,165,285 km (0.039 R)
• M32: 38,480,911 km (0.109 R)
• M33: 42,136,783 km (0.079 R)
• M34: 54,645,559 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 802.2

Radius: 4.8

Gravity: 34.82 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 8.44 AU - 13.06 AU

Year: 22758 Days

Day: 22.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 87,414,361 km

• M1: 60,138 km (0.11 R)
• M2: 779,704 km (0.091 R)
• M3: 1,041,500 km (0.097 R)
• M4: 1,328,728 km (0.11 R)
• M5: 1,612,815 km (0.106 R)
• M6: 2,212,253 km (0.057 R)
• M7: 2,611,979 km (0.109 R)
• M8: 4,101,375 km (0.082 R)
• M9: 5,241,461 km (0.09 R)
• M10: 5,734,685 km (0.054 R)
• M11: 6,168,818 km (0.093 R)
• M12: 6,485,516 km (0.119 R)
• M13: 6,812,986 km (0.063 R)
• M14: 8,729,933 km (0.065 R)
• M15: 9,129,060 km (0.049 R)
• M16: 9,362,583 km (0.115 R)
• M17: 11,511,556 km (0.108 R)
• M18: 14,122,787 km (0.1 R)
• M19: 17,103,674 km (0.047 R)
• M20: 20,778,247 km (0.102 R)
• M21: 21,284,336 km (0.099 R)
• M22: 22,216,032 km (0.08 R)
• M23: 23,609,237 km (0.079 R)
• M24: 29,638,779 km (0.042 R)
• M25: 30,799,509 km (0.091 R)
• M26: 31,324,897 km (0.09 R)
• M27: 31,589,834 km (0.098 R)
• M28: 38,255,167 km (0.062 R)
• M29: 39,629,972 km (0.096 R)
• M30: 40,407,881 km (0.072 R)
• M31: 46,828,322 km (0.052 R)
• M32: 47,001,257 km (0.088 R)
• M33: 48,400,745 km (0.114 R)
• M34: 51,282,449 km (0.107 R)
• M35: 53,895,924 km (0.1 R)
• M36: 55,816,162 km (0.049 R)
• M37: 62,266,823 km (0.064 R)
• M38: 62,476,110 km (0.086 R)
• M39: 77,345,540 km (0.088 R)
• M40: 77,587,290 km (0.115 R)
• M41: 83,288,016 km (0.055 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 179 - 17,409 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit