🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.2

Radius: 12.2

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.81 AU - 1.23 AU

Year: 687 Days

Day: 10.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (53)

Outer Limit: 70,983,131 km

• M1: 153,936 km (0.081 R)
• M2: 266,583 km (0.114 R)
• M3: 344,075 km (0.103 R)
• M4: 438,172 km (0.057 R)
• M5: 655,089 km (0.113 R)
• M6: 737,667 km (0.041 R)
• M7: 818,899 km (0.119 R)
• M8: 1,070,373 km (0.097 R)
• M9: 1,189,602 km (0.116 R)
• M10: 1,280,558 km (0.099 R)
• M11: 1,463,067 km (0.05 R)
• M12: 1,596,808 km (0.095 R)
• M13: 1,690,905 km (0.115 R)
• M14: 1,816,717 km (0.113 R)
• M15: 1,922,781 km (0.098 R)
• M16: 2,038,869 km (0.047 R)
• M17: 2,125,487 km (0.09 R)
• M18: 2,253,842 km (0.098 R)
• M19: 2,384,889 km (0.053 R)
• M20: 2,569,343 km (0.045 R)
• M21: 2,697,848 km (0.095 R)
• M22: 2,802,267 km (0.061 R)
• M23: 2,925,835 km (0.105 R)
• M24: 3,015,145 km (0.068 R)
• M25: 3,363,259 km (0.109 R)
• M26: 3,485,481 km (0.091 R)
• M27: 3,599,474 km (0.085 R)
• M28: 3,724,538 km (0.099 R)
• M29: 3,919,763 km (0.075 R)
• M30: 4,078,337 km (0.087 R)
• M31: 4,351,054 km (0.042 R)
• M32: 4,525,784 km (0.117 R)
• M33: 4,734,324 km (0.111 R)
• M34: 4,818,697 km (0.109 R)
• M35: 4,903,519 km (0.119 R)
• M36: 5,182,818 km (0.115 R)
• M37: 5,324,338 km (0.117 R)
• M38: 5,779,564 km (0.096 R)
• M39: 5,858,552 km (0.086 R)
• M40: 6,017,574 km (0.101 R)
• M41: 6,491,650 km (0.109 R)
• M42: 6,585,448 km (0.099 R)
• M43: 6,727,267 km (0.052 R)
• M44: 6,893,919 km (0.076 R)
• M45: 7,013,747 km (0.101 R)
• M46: 7,134,472 km (0.076 R)
• M47: 7,389,985 km (0.087 R)
• M48: 7,722,990 km (0.053 R)
• M49: 7,810,056 km (0.091 R)
• M50: 8,263,487 km (0.099 R)
• M51: 8,339,782 km (0.102 R)
• M52: 8,557,597 km (0.102 R)
• M53: 8,738,460 km (0.058 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940

Radius: 9

Gravity: 11.6 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.12 AU - 1.6 AU

Year: 1058 Days

Day: 12.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (60)

Outer Limit: 70,983,131 km

• M1: 125,513 km (0.038 R)
• M2: 276,756 km (0.115 R)
• M3: 339,886 km (0.069 R)
• M4: 457,470 km (0.116 R)
• M5: 536,608 km (0.086 R)
• M6: 756,816 km (0.057 R)
• M7: 825,032 km (0.109 R)
• M8: 881,431 km (0.086 R)
• M9: 1,028,186 km (0.09 R)
• M10: 1,191,248 km (0.098 R)
• M11: 1,263,803 km (0.096 R)
• M12: 1,362,986 km (0.112 R)
• M13: 1,439,132 km (0.113 R)
• M14: 1,560,605 km (0.096 R)
• M15: 1,658,442 km (0.053 R)
• M16: 1,739,973 km (0.071 R)
• M17: 1,897,948 km (0.087 R)
• M18: 1,983,518 km (0.083 R)
• M19: 2,060,711 km (0.043 R)
• M20: 2,178,295 km (0.114 R)
• M21: 2,379,504 km (0.08 R)
• M22: 2,534,487 km (0.119 R)
• M23: 2,800,173 km (0.092 R)
• M24: 2,876,169 km (0.096 R)
• M25: 3,289,657 km (0.108 R)
• M26: 3,416,217 km (0.091 R)
• M27: 3,650,487 km (0.118 R)
• M28: 3,781,535 km (0.062 R)
• M29: 4,259,051 km (0.056 R)
• M30: 4,334,299 km (0.104 R)
• M31: 4,460,560 km (0.081 R)
• M32: 4,588,017 km (0.1 R)
• M33: 4,652,195 km (0.094 R)
• M34: 4,912,196 km (0.102 R)
• M35: 5,096,949 km (0.076 R)
• M36: 5,257,168 km (0.116 R)
• M37: 5,432,647 km (0.081 R)
• M38: 5,692,648 km (0.117 R)
• M39: 6,253,191 km (0.03 R)
• M40: 6,381,845 km (0.109 R)
• M41: 6,482,375 km (0.097 R)
• M42: 6,554,631 km (0.1 R)
• M43: 6,729,062 km (0.097 R)
• M44: 6,787,555 km (0.094 R)
• M45: 6,919,650 km (0.12 R)
• M46: 7,396,568 km (0.119 R)
• M47: 7,700,102 km (0.099 R)
• M48: 7,822,622 km (0.116 R)
• M49: 8,116,432 km (0.085 R)
• M50: 8,194,223 km (0.096 R)
• M51: 8,335,145 km (0.087 R)
• M52: 8,778,403 km (0.108 R)
• M53: 9,115,896 km (0.119 R)
• M54: 9,704,414 km (0.092 R)
• M55: 9,770,536 km (0.091 R)
• M56: 9,936,590 km (0.086 R)
• M57: 10,271,539 km (0.119 R)
• M58: 10,474,245 km (0.033 R)
• M59: 11,665,642 km (0.107 R)
• M60: 11,806,563 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86

Radius: 10.5

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.57 AU - 2.01 AU

Year: 1597 Days

Day: 9.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 70,983,131 km

• M1: 131,197 km (0.115 R)
• M2: 198,965 km (0.072 R)
• M3: 273,016 km (0.11 R)
• M4: 387,010 km (0.061 R)
• M5: 493,823 km (0.083 R)
• M6: 570,267 km (0.111 R)
• M7: 700,417 km (0.077 R)
• M8: 885,470 km (0.096 R)
• M9: 981,811 km (0.063 R)
• M10: 1,114,205 km (0.111 R)
• M11: 1,180,028 km (0.05 R)
• M12: 1,247,347 km (0.118 R)
• M13: 1,374,056 km (0.099 R)
• M14: 1,754,933 km (0.11 R)
• M15: 1,858,604 km (0.111 R)
• M16: 2,099,457 km (0.039 R)
• M17: 2,230,803 km (0.057 R)
• M18: 2,336,420 km (0.096 R)
• M19: 2,451,012 km (0.081 R)
• M20: 2,990,013 km (0.12 R)
• M21: 3,091,141 km (0.103 R)
• M22: 3,161,901 km (0.085 R)
• M23: 3,273,201 km (0.06 R)
• M24: 3,361,464 km (0.094 R)
• M25: 3,631,189 km (0.052 R)
• M26: 3,823,422 km (0.108 R)
• M27: 3,891,041 km (0.103 R)
• M28: 4,096,438 km (0.097 R)
• M29: 4,279,097 km (0.116 R)
• M30: 4,367,061 km (0.093 R)
• M31: 4,634,542 km (0.094 R)
• M32: 4,852,506 km (0.105 R)
• M33: 4,990,435 km (0.068 R)
• M34: 5,157,686 km (0.079 R)
• M35: 5,260,759 km (0.061 R)
• M36: 5,336,306 km (0.105 R)
• M37: 5,738,275 km (0.079 R)
• M38: 5,884,283 km (0.108 R)
• M39: 5,952,798 km (0.069 R)
• M40: 6,041,360 km (0.115 R)
• M41: 6,189,911 km (0.114 R)
• M42: 6,279,670 km (0.119 R)
• M43: 6,714,252 km (0.117 R)
• M44: 6,786,059 km (0.108 R)
• M45: 6,899,155 km (0.117 R)
• M46: 7,033,793 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.5

Radius: 14.8

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.73 AU - 2.37 AU

Year: 1957 Days

Day: 13.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (63)

Outer Limit: 70,983,131 km

• M1: 185,651 km (0.082 R)
• M2: 396,135 km (0.033 R)
• M3: 541,095 km (0.104 R)
• M4: 669,151 km (0.114 R)
• M5: 775,515 km (0.113 R)
• M6: 989,590 km (0.086 R)
• M7: 1,114,355 km (0.087 R)
• M8: 1,391,859 km (0.11 R)
• M9: 1,681,031 km (0.115 R)
• M10: 1,785,899 km (0.083 R)
• M11: 2,101,700 km (0.075 R)
• M12: 2,409,573 km (0.109 R)
• M13: 2,502,174 km (0.113 R)
• M14: 2,663,889 km (0.074 R)
• M15: 2,927,182 km (0.031 R)
• M16: 3,170,278 km (0.061 R)
• M17: 3,272,304 km (0.05 R)
• M18: 3,405,147 km (0.079 R)
• M19: 3,554,894 km (0.086 R)
• M20: 3,676,368 km (0.101 R)
• M21: 3,830,304 km (0.113 R)
• M22: 3,970,627 km (0.061 R)
• M23: 4,467,292 km (0.056 R)
• M24: 4,615,244 km (0.101 R)
• M25: 4,831,862 km (0.101 R)
• M26: 4,983,853 km (0.049 R)
• M27: 5,519,862 km (0.111 R)
• M28: 6,386,034 km (0.032 R)
• M29: 6,759,580 km (0.049 R)
• M30: 6,930,121 km (0.042 R)
• M31: 7,025,415 km (0.025 R)
• M32: 7,178,903 km (0.105 R)
• M33: 7,547,811 km (0.096 R)
• M34: 7,784,026 km (0.097 R)
• M35: 8,022,784 km (0.092 R)
• M36: 8,794,859 km (0.108 R)
• M37: 9,022,696 km (0.106 R)
• M38: 9,739,719 km (0.06 R)
• M39: 9,868,224 km (0.064 R)
• M40: 10,540,965 km (0.096 R)
• M41: 11,228,517 km (0.044 R)
• M42: 11,680,003 km (0.041 R)
• M43: 11,884,952 km (0.115 R)
• M44: 12,183,400 km (0.081 R)
• M45: 12,414,529 km (0.115 R)
• M46: 12,507,429 km (0.104 R)
• M47: 12,787,476 km (0.051 R)
• M48: 12,975,371 km (0.097 R)
• M49: 13,069,618 km (0.042 R)
• M50: 14,097,655 km (0.064 R)
• M51: 14,194,594 km (0.115 R)
• M52: 14,486,908 km (0.082 R)
• M53: 14,633,664 km (0.097 R)
• M54: 15,052,538 km (0.073 R)
• M55: 15,350,537 km (0.079 R)
• M56: 15,902,104 km (0.119 R)
• M57: 16,230,920 km (0.117 R)
• M58: 16,460,104 km (0.106 R)
• M59: 16,639,023 km (0.047 R)
• M60: 16,767,079 km (0.057 R)
• M61: 16,921,464 km (0.03 R)
• M62: 17,050,268 km (0.105 R)
• M63: 17,491,133 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.4

Radius: 10.1

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.03 AU - 2.95 AU

Year: 2620 Days

Day: 7.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 70,983,131 km

• M1: 203,154 km (0.107 R)
• M2: 340,335 km (0.072 R)
• M3: 403,765 km (0.106 R)
• M4: 746,045 km (0.109 R)
• M5: 1,015,171 km (0.039 R)
• M6: 1,122,134 km (0.117 R)
• M7: 1,759,720 km (0.113 R)
• M8: 1,833,771 km (0.049 R)
• M9: 2,081,654 km (0.091 R)
• M10: 2,310,090 km (0.104 R)
• M11: 2,705,477 km (0.095 R)
• M12: 2,769,805 km (0.114 R)
• M13: 3,122,108 km (0.105 R)
• M14: 3,257,942 km (0.081 R)
• M15: 3,349,646 km (0.071 R)
• M16: 4,175,875 km (0.059 R)
• M17: 4,288,223 km (0.079 R)
• M18: 4,579,939 km (0.037 R)
• M19: 5,115,948 km (0.027 R)
• M20: 5,222,910 km (0.097 R)
• M21: 6,006,205 km (0.097 R)
• M22: 6,247,057 km (0.072 R)
• M23: 6,418,945 km (0.096 R)
• M24: 6,505,413 km (0.062 R)
• M25: 7,407,339 km (0.071 R)
• M26: 7,803,623 km (0.043 R)
• M27: 7,973,417 km (0.11 R)
• M28: 8,082,025 km (0.041 R)
• M29: 8,316,594 km (0.105 R)
• M30: 8,537,550 km (0.12 R)
• M31: 8,760,451 km (0.093 R)
• M32: 8,824,479 km (0.113 R)
• M33: 9,211,938 km (0.056 R)
• M34: 9,375,149 km (0.119 R)
• M35: 9,473,435 km (0.116 R)
• M36: 9,737,325 km (0.102 R)
• M37: 10,800,069 km (0.119 R)
• M38: 10,920,495 km (0.096 R)
• M39: 11,093,131 km (0.088 R)
• M40: 11,179,898 km (0.055 R)
• M41: 11,793,099 km (0.054 R)
• M42: 11,863,859 km (0.087 R)
• M43: 11,952,571 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.1

Radius: 12.9

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 3.27 AU - 4.59 AU

Year: 5195 Days

Day: 7 Hours

Environment

Temp: -229 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 70,983,131 km

• M1: 176,525 km (0.11 R)
• M2: 404,812 km (0.083 R)
• M3: 508,184 km (0.117 R)
• M4: 670,198 km (0.083 R)
• M5: 937,829 km (0.111 R)
• M6: 1,108,520 km (0.093 R)
• M7: 1,240,765 km (0.1 R)
• M8: 1,495,380 km (0.043 R)
• M9: 1,795,474 km (0.074 R)
• M10: 1,880,744 km (0.114 R)
• M11: 2,205,671 km (0.104 R)
• M12: 2,359,308 km (0.112 R)
• M13: 2,677,802 km (0.1 R)
• M14: 3,044,167 km (0.117 R)
• M15: 3,660,361 km (0.104 R)
• M16: 3,843,468 km (0.116 R)
• M17: 3,954,919 km (0.104 R)
• M18: 4,086,266 km (0.12 R)
• M19: 4,181,111 km (0.064 R)
• M20: 4,372,746 km (0.104 R)
• M21: 4,626,464 km (0.116 R)
• M22: 5,005,994 km (0.098 R)
• M23: 5,168,906 km (0.116 R)
• M24: 5,710,450 km (0.059 R)
• M25: 5,880,692 km (0.08 R)
• M26: 6,161,188 km (0.1 R)
• M27: 6,424,032 km (0.084 R)
• M28: 6,556,725 km (0.108 R)
• M29: 6,712,905 km (0.093 R)
• M30: 7,257,442 km (0.112 R)
• M31: 7,419,007 km (0.103 R)
• M32: 7,675,268 km (0.112 R)
• M33: 7,887,249 km (0.088 R)
• M34: 8,852,454 km (0.049 R)
• M35: 9,025,240 km (0.038 R)
• M36: 9,374,102 km (0.079 R)
• M37: 9,525,046 km (0.091 R)
• M38: 9,956,935 km (0.085 R)
• M39: 10,059,559 km (0.107 R)
• M40: 10,214,094 km (0.09 R)
• M41: 10,317,616 km (0.101 R)
• M42: 11,613,283 km (0.111 R)
• M43: 11,694,365 km (0.045 R)
• M44: 11,802,524 km (0.071 R)
• M45: 12,404,207 km (0.108 R)
• M46: 13,043,887 km (0.045 R)
• M47: 13,184,360 km (0.111 R)
• M48: 14,124,283 km (0.051 R)
• M49: 14,297,517 km (0.039 R)
• M50: 14,821,409 km (0.096 R)
• M51: 15,115,219 km (0.066 R)
• M52: 15,233,402 km (0.115 R)
• M53: 15,559,675 km (0.081 R)
• M54: 16,188,883 km (0.079 R)
• M55: 16,279,539 km (0.114 R)
• M56: 16,704,397 km (0.057 R)
• M57: 16,826,619 km (0.044 R)
• M58: 16,918,322 km (0.12 R)
• M59: 17,071,660 km (0.072 R)
• M60: 17,194,630 km (0.114 R)
• M61: 17,472,433 km (0.095 R)
• M62: 17,565,333 km (0.076 R)
• M63: 18,693,451 km (0.114 R)
• M64: 18,883,739 km (0.089 R)
• M65: 19,138,504 km (0.066 R)
• M66: 19,619,162 km (0.075 R)
• M67: 20,429,235 km (0.038 R)
• M68: 21,748,090 km (0.089 R)
• M69: 22,015,122 km (0.055 R)
• M70: 22,283,201 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.3

Radius: 7.4

Gravity: 11 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 7.5 AU - 11.3 AU

Year: 19219 Days

Day: 18.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 70,983,131 km

• M1: 103,671 km (0.1 R)
• M2: 152,590 km (0.114 R)
• M3: 263,292 km (0.113 R)
• M4: 406,607 km (0.055 R)
• M5: 638,035 km (0.069 R)
• M6: 1,433,148 km (0.102 R)
• M7: 1,942,678 km (0.104 R)
• M8: 2,200,585 km (0.082 R)
• M9: 2,538,526 km (0.092 R)
• M10: 3,300,428 km (0.108 R)
• M11: 4,293,010 km (0.109 R)
• M12: 4,757,212 km (0.059 R)
• M13: 4,929,998 km (0.077 R)
• M14: 6,149,520 km (0.087 R)
• M15: 6,337,863 km (0.092 R)
• M16: 7,109,938 km (0.12 R)
• M17: 7,507,270 km (0.082 R)
• M18: 8,794,410 km (0.077 R)
• M19: 9,059,946 km (0.108 R)
• M20: 9,762,757 km (0.078 R)
• M21: 10,539,170 km (0.046 R)
• M22: 10,708,066 km (0.088 R)
• M23: 10,878,009 km (0.068 R)
• M24: 11,740,590 km (0.028 R)
• M25: 14,208,357 km (0.111 R)
• M26: 15,917,812 km (0.115 R)
• M27: 16,829,312 km (0.076 R)
• M28: 17,757,866 km (0.109 R)
• M29: 18,295,969 km (0.059 R)
• M30: 18,634,958 km (0.098 R)
• M31: 18,702,875 km (0.105 R)
• M32: 19,319,069 km (0.06 R)
• M33: 19,733,605 km (0.049 R)
• M34: 20,011,558 km (0.115 R)
• M35: 20,081,121 km (0.116 R)
• M36: 21,278,203 km (0.025 R)
• M37: 21,706,202 km (0.065 R)
• M38: 21,777,860 km (0.12 R)
• M39: 22,498,323 km (0.07 R)
• M40: 22,788,543 km (0.045 R)
• M41: 23,007,255 km (0.114 R)
• M42: 23,814,635 km (0.067 R)
• M43: 25,231,027 km (0.096 R)
• M44: 25,608,313 km (0.074 R)
• M45: 26,751,241 km (0.055 R)
• M46: 27,290,392 km (0.094 R)
• M47: 27,677,700 km (0.12 R)
• M48: 28,693,021 km (0.03 R)
• M49: 31,405,679 km (0.043 R)
• M50: 33,700,361 km (0.107 R)
• M51: 33,783,388 km (0.114 R)
• M52: 34,365,922 km (0.089 R)
• M53: 34,784,048 km (0.091 R)
• M54: 35,625,387 km (0.094 R)
• M55: 36,048,599 km (0.108 R)
• M56: 36,303,214 km (0.093 R)
• M57: 39,318,659 km (0.088 R)
• M58: 40,989,069 km (0.092 R)
• M59: 41,077,631 km (0.102 R)
• M60: 41,343,616 km (0.091 R)
• M61: 41,610,199 km (0.081 R)
• M62: 42,145,161 km (0.044 R)
• M63: 42,772,126 km (0.078 R)
• M64: 45,127,843 km (0.116 R)
• M65: 45,219,397 km (0.034 R)
• M66: 45,769,319 km (0.057 R)
• M67: 46,321,485 km (0.091 R)
• M68: 47,804,748 km (0.112 R)
• M69: 48,739,585 km (0.058 R)
• M70: 49,303,419 km (0.048 R)
• M71: 49,964,043 km (0.103 R)
• M72: 50,437,670 km (0.081 R)
• M73: 50,532,515 km (0.117 R)
• M74: 51,007,937 km (0.041 R)
• M75: 52,731,604 km (0.099 R)
• M76: 53,891,287 km (0.107 R)
• M77: 54,669,195 km (0.106 R)
• M78: 58,913,137 km (0.085 R)
• M79: 59,213,081 km (0.09 R)
• M80: 61,124,942 km (0.032 R)
• M81: 61,834,485 km (0.115 R)
• M82: 62,342,968 km (0.047 R)
• M83: 63,466,448 km (0.07 R)
• M84: 65,319,217 km (0.053 R)
• M85: 66,356,230 km (0.106 R)
• M86: 66,460,200 km (0.106 R)
• M87: 66,876,681 km (0.113 R)
• M88: 66,980,951 km (0.102 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: 507 - 15,410 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit