🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.58 AU - 0.94 AU

Year: 248 Days

Day: 28 Hours

Environment

Temp: 127 °C

Axial Tilt: 87.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 36,111,395 km

• M1: 702,661 km (0.045 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.65 AU - 3.31 AU

Year: 1928 Days

Day: 32.6 Hours

Environment

Temp: -115 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 4.15 AU - 4.25 AU

Year: 3226 Days

Day: 44.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 9.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,111,395 km

• M1: 413,189 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.2

Radius: 14.9

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 7.77 AU - 7.95 AU

Year: 8258 Days

Day: 11 Hours

Environment

Temp: -159 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 36,111,395 km

• M1: 206,295 km (0.106 R)
• M2: 420,819 km (0.105 R)
• M3: 692,189 km (0.049 R)
• M4: 868,266 km (0.073 R)
• M5: 1,042,847 km (0.078 R)
• M6: 1,172,847 km (0.087 R)
• M7: 1,512,734 km (0.093 R)
• M8: 2,285,706 km (0.103 R)
• M9: 2,792,543 km (0.073 R)
• M10: 2,978,494 km (0.072 R)
• M11: 3,086,503 km (0.084 R)
• M12: 3,279,036 km (0.032 R)
• M13: 3,851,098 km (0.091 R)
• M14: 4,028,970 km (0.049 R)
• M15: 4,209,534 km (0.082 R)
• M16: 4,485,692 km (0.101 R)
• M17: 5,088,123 km (0.119 R)
• M18: 5,316,559 km (0.111 R)
• M19: 5,885,779 km (0.099 R)
• M20: 6,404,434 km (0.106 R)
• M21: 8,237,906 km (0.093 R)
• M22: 8,352,797 km (0.097 R)
• M23: 8,507,033 km (0.101 R)
• M24: 8,662,016 km (0.105 R)
• M25: 9,053,813 km (0.085 R)
• M26: 9,371,409 km (0.071 R)
• M27: 9,571,870 km (0.102 R)
• M28: 10,140,641 km (0.115 R)
• M29: 10,264,060 km (0.079 R)
• M30: 10,930,219 km (0.057 R)
• M31: 11,396,515 km (0.064 R)
• M32: 11,567,655 km (0.099 R)
• M33: 12,086,311 km (0.091 R)
• M34: 12,480,202 km (0.036 R)
• M35: 14,374,560 km (0.098 R)
• M36: 14,559,613 km (0.096 R)
• M37: 14,745,413 km (0.07 R)
• M38: 15,355,025 km (0.104 R)
• M39: 16,357,031 km (0.104 R)
• M40: 16,550,312 km (0.096 R)
• M41: 18,024,150 km (0.085 R)
• M42: 18,575,119 km (0.103 R)
• M43: 18,928,619 km (0.102 R)
• M44: 19,284,362 km (0.103 R)
• M45: 19,796,286 km (0.071 R)
• M46: 21,148,501 km (0.107 R)
• M47: 21,306,477 km (0.108 R)
• M48: 22,745,608 km (0.095 R)
• M49: 23,015,632 km (0.027 R)
• M50: 23,941,494 km (0.081 R)
• M51: 24,657,768 km (0.093 R)
• M52: 26,507,396 km (0.12 R)
• M53: 27,305,501 km (0.114 R)
• M54: 28,111,684 km (0.065 R)
• M55: 28,401,455 km (0.116 R)
• M56: 28,750,467 km (0.053 R)
• M57: 29,452,978 km (0.084 R)
• M58: 29,747,237 km (0.095 R)
• M59: 30,220,266 km (0.088 R)
• M60: 30,398,287 km (0.107 R)
• M61: 31,053,975 km (0.099 R)
• M62: 31,593,874 km (0.065 R)
• M63: 31,774,588 km (0.103 R)
• M64: 33,110,048 km (0.119 R)
• M65: 34,340,042 km (0.111 R)
• M66: 34,650,008 km (0.092 R)
• M67: 34,960,723 km (0.038 R)
• M68: 36,844,759 km (0.062 R)
• M69: 38,504,098 km (0.032 R)
• M70: 38,761,556 km (0.067 R)
• M71: 40,514,395 km (0.099 R)
• M72: 41,631,292 km (0.076 R)
• M73: 42,292,964 km (0.037 R)
• M74: 42,625,220 km (0.108 R)
• M75: 44,029,795 km (0.11 R)
• M76: 44,703,883 km (0.066 R)
• M77: 45,381,561 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.6

Radius: 12.1

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 6.24 AU - 9.78 AU

Year: 8495 Days

Day: 11.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 127.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 36,111,395 km

• M1: 168,597 km (0.082 R)
• M2: 332,706 km (0.111 R)
• M3: 497,413 km (0.083 R)
• M4: 693,985 km (0.107 R)
• M5: 825,331 km (0.095 R)
• M6: 933,790 km (0.081 R)
• M7: 1,114,654 km (0.084 R)
• M8: 1,362,537 km (0.066 R)
• M9: 1,667,867 km (0.091 R)
• M10: 1,995,336 km (0.118 R)
• M11: 2,123,542 km (0.093 R)
• M12: 2,524,913 km (0.064 R)
• M13: 2,734,649 km (0.098 R)
• M14: 3,047,907 km (0.105 R)
• M15: 3,578,531 km (0.028 R)
• M16: 3,868,152 km (0.066 R)
• M17: 4,275,507 km (0.115 R)
• M18: 5,190,298 km (0.047 R)
• M19: 5,488,447 km (0.104 R)
• M20: 5,915,399 km (0.065 R)
• M21: 6,448,267 km (0.06 R)
• M22: 6,575,874 km (0.061 R)
• M23: 6,833,780 km (0.079 R)
• M24: 7,796,443 km (0.042 R)
• M25: 8,035,051 km (0.107 R)
• M26: 8,276,353 km (0.102 R)
• M27: 8,942,961 km (0.08 R)
• M28: 9,993,886 km (0.115 R)
• M29: 10,327,938 km (0.099 R)
• M30: 10,816,973 km (0.108 R)
• M31: 11,236,745 km (0.092 R)
• M32: 11,352,085 km (0.081 R)
• M33: 11,778,738 km (0.098 R)
• M34: 12,013,607 km (0.107 R)
• M35: 12,647,602 km (0.098 R)
• M36: 13,130,355 km (0.069 R)
• M37: 13,496,421 km (0.098 R)
• M38: 13,865,778 km (0.108 R)
• M39: 14,155,399 km (0.069 R)
• M40: 14,740,626 km (0.106 R)
• M41: 14,993,895 km (0.081 R)
• M42: 15,504,623 km (0.114 R)
• M43: 15,676,211 km (0.049 R)
• M44: 16,325,167 km (0.116 R)
• M45: 16,938,817 km (0.115 R)
• M46: 17,828,476 km (0.116 R)
• M47: 18,460,377 km (0.1 R)
• M48: 18,551,333 km (0.097 R)
• M49: 18,916,202 km (0.094 R)
• M50: 19,053,682 km (0.039 R)
• M51: 19,283,614 km (0.097 R)
• M52: 20,212,318 km (0.117 R)
• M53: 20,823,724 km (0.083 R)
• M54: 21,632,600 km (0.105 R)
• M55: 24,568,458 km (0.084 R)
• M56: 25,120,175 km (0.109 R)
• M57: 25,220,855 km (0.045 R)
• M58: 26,235,876 km (0.12 R)
• M59: 26,491,689 km (0.06 R)
• M60: 26,594,163 km (0.079 R)
• M61: 27,991,706 km (0.076 R)
• M62: 28,253,054 km (0.104 R)
• M63: 30,266,342 km (0.111 R)
• M64: 30,642,132 km (0.094 R)
• M65: 31,019,567 km (0.093 R)
• M66: 31,127,727 km (0.12 R)
• M67: 32,435,062 km (0.095 R)
• M68: 32,929,782 km (0.104 R)
• M69: 34,709,548 km (0.082 R)
• M70: 35,159,240 km (0.075 R)
• M71: 35,837,516 km (0.113 R)
• M72: 36,121,453 km (0.111 R)
• M73: 36,748,717 km (0.067 R)
• M74: 37,207,085 km (0.099 R)
• M75: 37,322,126 km (0.08 R)
• M76: 37,725,142 km (0.072 R)
• M77: 38,187,549 km (0.112 R)
• M78: 38,303,488 km (0.096 R)
• M79: 38,477,620 km (0.025 R)
• M80: 38,768,288 km (0.104 R)
• M81: 39,001,362 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.2

Radius: 15

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 8.56 AU - 9.18 AU

Year: 9900 Days

Day: 9.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 36,111,395 km

• M1: 271,071 km (0.107 R)
• M2: 371,900 km (0.052 R)
• M3: 572,212 km (0.091 R)
• M4: 725,550 km (0.119 R)
• M5: 847,322 km (0.064 R)
• M6: 960,418 km (0.045 R)
• M7: 1,203,814 km (0.072 R)
• M8: 1,409,960 km (0.113 R)
• M9: 1,628,522 km (0.093 R)
• M10: 1,901,688 km (0.094 R)
• M11: 2,122,495 km (0.11 R)
• M12: 2,638,158 km (0.097 R)
• M13: 3,350,843 km (0.081 R)
• M14: 3,538,289 km (0.086 R)
• M15: 3,867,853 km (0.045 R)
• M16: 4,616,141 km (0.117 R)
• M17: 4,976,822 km (0.052 R)
• M18: 5,378,043 km (0.092 R)
• M19: 5,503,706 km (0.088 R)
• M20: 5,725,859 km (0.086 R)
• M21: 5,822,050 km (0.083 R)
• M22: 5,951,003 km (0.05 R)
• M23: 6,377,208 km (0.116 R)
• M24: 6,543,710 km (0.112 R)
• M25: 7,017,786 km (0.118 R)
• M26: 7,785,522 km (0.112 R)
• M27: 8,433,580 km (0.101 R)
• M28: 8,727,241 km (0.088 R)
• M29: 9,628,418 km (0.056 R)
• M30: 10,128,973 km (0.08 R)
• M31: 10,284,704 km (0.106 R)
• M32: 10,915,857 km (0.115 R)
• M33: 11,722,340 km (0.111 R)
• M34: 11,967,979 km (0.111 R)
• M35: 12,883,668 km (0.119 R)
• M36: 13,435,385 km (0.104 R)
• M37: 14,168,564 km (0.075 R)
• M38: 14,474,192 km (0.103 R)
• M39: 15,136,612 km (0.103 R)
• M40: 15,494,001 km (0.113 R)
• M41: 16,035,246 km (0.107 R)
• M42: 16,445,294 km (0.069 R)
• M43: 20,633,735 km (0.045 R)
• M44: 20,782,136 km (0.107 R)
• M45: 21,030,169 km (0.105 R)
• M46: 21,279,250 km (0.095 R)
• M47: 21,479,113 km (0.102 R)
• M48: 22,437,287 km (0.07 R)
• M49: 22,793,928 km (0.092 R)
• M50: 22,998,429 km (0.073 R)
• M51: 23,874,773 km (0.065 R)
• M52: 24,134,624 km (0.091 R)
• M53: 24,238,894 km (0.098 R)
• M54: 24,762,038 km (0.116 R)
• M55: 25,077,839 km (0.114 R)
• M56: 25,500,902 km (0.109 R)
• M57: 25,713,331 km (0.046 R)
• M58: 26,033,021 km (0.033 R)
• M59: 27,325,248 km (0.083 R)
• M60: 27,488,310 km (0.079 R)
• M61: 28,088,646 km (0.114 R)
• M62: 28,198,301 km (0.108 R)
• M63: 30,872,064 km (0.103 R)
• M64: 31,838,316 km (0.114 R)
• M65: 32,756,847 km (0.058 R)
• M66: 32,930,082 km (0.063 R)
• M67: 33,800,592 km (0.078 R)
• M68: 34,034,114 km (0.092 R)
• M69: 34,385,220 km (0.063 R)
• M70: 37,418,317 km (0.113 R)
• M71: 37,599,330 km (0.079 R)
• M72: 37,720,206 km (0.066 R)
• M73: 37,962,404 km (0.084 R)
• M74: 39,058,508 km (0.103 R)
• M75: 39,733,494 km (0.109 R)
• M76: 41,032,751 km (0.084 R)
• M77: 41,219,449 km (0.12 R)
• M78: 41,593,893 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 324.6

Radius: 5.4

Gravity: 11.13 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 11.41 AU - 14.65 AU

Year: 17626 Days

Day: 18.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 36,111,395 km

• M1: 113,694 km (0.116 R)
• M2: 308,770 km (0.096 R)
• M3: 676,033 km (0.119 R)
• M4: 1,737,878 km (0.099 R)
• M5: 2,218,836 km (0.102 R)
• M6: 3,422,799 km (0.111 R)
• M7: 3,918,118 km (0.061 R)
• M8: 4,019,994 km (0.088 R)
• M9: 4,157,026 km (0.045 R)
• M10: 4,400,721 km (0.1 R)
• M11: 4,471,181 km (0.089 R)
• M12: 6,074,422 km (0.094 R)
• M13: 6,390,522 km (0.094 R)
• M14: 6,590,833 km (0.077 R)
• M15: 6,671,467 km (0.117 R)
• M16: 6,874,770 km (0.077 R)
• M17: 7,080,018 km (0.088 R)
• M18: 7,328,949 km (0.084 R)
• M19: 8,006,777 km (0.077 R)
• M20: 8,440,611 km (0.071 R)
• M21: 9,150,453 km (0.117 R)
• M22: 9,833,218 km (0.119 R)
• M23: 11,295,537 km (0.041 R)
• M24: 11,489,116 km (0.049 R)
• M25: 11,978,002 km (0.1 R)
• M26: 12,224,839 km (0.06 R)
• M27: 12,274,505 km (0.08 R)
• M28: 12,774,013 km (0.106 R)
• M29: 13,433,440 km (0.112 R)
• M30: 13,690,000 km (0.027 R)
• M31: 13,948,206 km (0.119 R)
• M32: 14,785,057 km (0.028 R)
• M33: 15,049,845 km (0.092 R)
• M34: 15,530,653 km (0.12 R)
• M35: 16,070,701 km (0.083 R)
• M36: 16,452,325 km (0.095 R)
• M37: 16,561,980 km (0.119 R)
• M38: 16,781,889 km (0.083 R)
• M39: 16,836,941 km (0.096 R)
• M40: 16,947,344 km (0.046 R)
• M41: 17,727,348 km (0.094 R)
• M42: 17,952,193 km (0.054 R)
• M43: 18,065,140 km (0.097 R)
• M44: 18,518,870 km (0.096 R)
• M45: 18,575,717 km (0.099 R)
• M46: 19,091,231 km (0.09 R)
• M47: 19,495,445 km (0.091 R)
• M48: 19,611,383 km (0.117 R)
• M49: 19,960,694 km (0.12 R)
• M50: 20,194,815 km (0.081 R)
• M51: 20,429,684 km (0.091 R)
• M52: 22,099,495 km (0.099 R)
• M53: 22,706,563 km (0.053 R)
• M54: 22,828,485 km (0.083 R)
• M55: 23,380,502 km (0.104 R)
• M56: 23,936,706 km (0.074 R)
• M57: 24,936,469 km (0.065 R)
• M58: 26,333,115 km (0.067 R)
• M59: 26,654,152 km (0.09 R)
• M60: 26,718,479 km (0.101 R)
• M61: 27,689,818 km (0.094 R)
• M62: 28,672,825 km (0.102 R)
• M63: 29,135,532 km (0.118 R)
• M64: 29,934,235 km (0.075 R)
• M65: 30,672,799 km (0.105 R)
• M66: 31,078,210 km (0.088 R)
• M67: 32,442,243 km (0.052 R)
• M68: 34,244,449 km (0.103 R)
• M69: 35,087,133 km (0.083 R)
• M70: 35,157,594 km (0.057 R)
• M71: 35,440,184 km (0.115 R)
• M72: 35,794,582 km (0.045 R)
• M73: 37,367,454 km (0.061 R)
• M74: 39,475,138 km (0.085 R)
• M75: 39,548,441 km (0.097 R)
• M76: 40,063,207 km (0.117 R)
• M77: 41,025,271 km (0.097 R)
• M78: 41,397,172 km (0.099 R)
• M79: 41,695,619 km (0.074 R)
• M80: 44,337,069 km (0.102 R)
• M81: 44,795,287 km (0.075 R)
• M82: 45,178,258 km (0.093 R)
• M83: 45,485,532 km (0.111 R)
• M84: 46,256,559 km (0.068 R)
• M85: 47,187,656 km (0.078 R)
• M86: 48,674,360 km (0.07 R)
• M87: 49,304,915 km (0.118 R)
• M88: 50,335,345 km (0.111 R)
• M89: 50,494,517 km (0.08 R)
• M90: 51,452,991 km (0.114 R)
• M91: 51,533,175 km (0.094 R)
• M92: 52,175,848 km (0.109 R)
• M93: 52,498,082 km (0.116 R)
• M94: 52,982,779 km (0.107 R)
• M95: 53,469,121 km (0.087 R)
• M96: 53,550,203 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 62.8

Radius: 4.4

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 13.99 AU - 15.85 AU

Year: 21596 Days

Day: 24.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 36,111,395 km

• M1: 164,408 km (0.094 R)
• M2: 321,785 km (0.054 R)
• M3: 652,247 km (0.109 R)
• M4: 751,281 km (0.069 R)
• M5: 1,012,030 km (0.08 R)
• M6: 1,077,404 km (0.05 R)
• M7: 1,667,418 km (0.094 R)
• M8: 1,803,552 km (0.104 R)
• M9: 1,903,184 km (0.1 R)
• M10: 2,004,462 km (0.107 R)
• M11: 2,149,422 km (0.086 R)
• M12: 2,405,683 km (0.111 R)
• M13: 2,739,735 km (0.044 R)
• M14: 3,017,389 km (0.082 R)
• M15: 3,135,721 km (0.105 R)
• M16: 3,928,590 km (0.109 R)
• M17: 4,006,081 km (0.089 R)
• M18: 4,110,052 km (0.053 R)
• M19: 5,396,893 km (0.119 R)
• M20: 6,398,899 km (0.057 R)
• M21: 6,520,522 km (0.109 R)
• M22: 6,796,979 km (0.107 R)
• M23: 7,424,991 km (0.098 R)
• M24: 8,136,778 km (0.088 R)
• M25: 9,486,001 km (0.087 R)
• M26: 9,520,558 km (0.11 R)
• M27: 10,080,054 km (0.09 R)
• M28: 11,048,102 km (0.094 R)
• M29: 12,233,366 km (0.079 R)
• M30: 12,535,853 km (0.114 R)
• M31: 14,521,914 km (0.051 R)
• M32: 14,681,834 km (0.118 R)
• M33: 14,922,687 km (0.062 R)
• M34: 15,653,173 km (0.064 R)
• M35: 15,775,993 km (0.056 R)
• M36: 17,148,554 km (0.101 R)
• M37: 17,275,263 km (0.059 R)
• M38: 17,402,272 km (0.119 R)
• M39: 17,487,093 km (0.102 R)
• M40: 17,827,728 km (0.103 R)
• M41: 19,037,376 km (0.1 R)
• M42: 19,343,902 km (0.087 R)
• M43: 19,519,829 km (0.082 R)
• M44: 20,675,922 km (0.119 R)
• M45: 20,720,801 km (0.076 R)
• M46: 20,855,738 km (0.027 R)
• M47: 20,990,975 km (0.077 R)
• M48: 21,899,931 km (0.112 R)
• M49: 22,497,575 km (0.106 R)
• M50: 22,636,252 km (0.062 R)
• M51: 22,867,979 km (0.109 R)
• M52: 23,053,929 km (0.116 R)
• M53: 23,427,326 km (0.088 R)
• M54: 23,802,816 km (0.112 R)
• M55: 24,702,498 km (0.116 R)
• M56: 25,324,526 km (0.097 R)
• M57: 25,758,061 km (0.092 R)
• M58: 25,854,850 km (0.084 R)
• M59: 25,903,171 km (0.107 R)
• M60: 26,291,377 km (0.085 R)
• M61: 28,012,351 km (0.105 R)
• M62: 28,660,708 km (0.031 R)
• M63: 29,314,002 km (0.118 R)
• M64: 30,328,724 km (0.087 R)
• M65: 30,481,913 km (0.069 R)
• M66: 30,737,874 km (0.115 R)
• M67: 32,392,427 km (0.108 R)
• M68: 32,758,343 km (0.09 R)
• M69: 33,177,965 km (0.088 R)
• M70: 33,283,282 km (0.081 R)
• M71: 33,335,791 km (0.091 R)
• M72: 33,652,340 km (0.108 R)
• M73: 34,181,917 km (0.107 R)
• M74: 34,341,388 km (0.108 R)
• M75: 34,928,111 km (0.092 R)
• M76: 35,035,073 km (0.078 R)
• M77: 35,088,629 km (0.1 R)
• M78: 35,464,270 km (0.034 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 308 - 10,875 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit