🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.65 AU - 1.07 AU

Year: 294 Days

Day: 39.6 Hours

Environment

Temp: 87 °C

Axial Tilt: 11.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.28 AU - 1.38 AU

Year: 566 Days

Day: 37.1 Hours

Environment

Temp: -23 °C

Axial Tilt: 38.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.2

Radius: 11.5

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 4.3 AU - 5.16 AU

Year: 3795 Days

Day: 8.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 62,050,786 km

• M1: 147,653 km (0.11 R)
• M2: 229,184 km (0.045 R)
• M3: 312,660 km (0.062 R)
• M4: 404,213 km (0.119 R)
• M5: 644,767 km (0.097 R)
• M6: 747,690 km (0.108 R)
• M7: 819,647 km (0.076 R)
• M8: 1,024,446 km (0.09 R)
• M9: 1,161,328 km (0.092 R)
• M10: 1,246,599 km (0.119 R)
• M11: 1,333,964 km (0.082 R)
• M12: 1,546,543 km (0.104 R)
• M13: 1,754,185 km (0.083 R)
• M14: 2,074,174 km (0.11 R)
• M15: 2,303,957 km (0.078 R)
• M16: 2,636,064 km (0.09 R)
• M17: 3,003,476 km (0.12 R)
• M18: 3,082,913 km (0.101 R)
• M19: 3,407,839 km (0.054 R)
• M20: 3,616,678 km (0.096 R)
• M21: 4,135,035 km (0.105 R)
• M22: 4,932,840 km (0.027 R)
• M23: 5,337,502 km (0.06 R)
• M24: 5,556,065 km (0.078 R)
• M25: 5,752,936 km (0.109 R)
• M26: 6,434,204 km (0.101 R)
• M27: 6,589,188 km (0.081 R)
• M28: 7,221,239 km (0.106 R)
• M29: 7,790,160 km (0.085 R)
• M30: 8,317,492 km (0.08 R)
• M31: 8,401,865 km (0.098 R)
• M32: 8,656,481 km (0.047 R)
• M33: 9,028,979 km (0.119 R)
• M34: 9,115,597 km (0.032 R)
• M35: 9,406,565 km (0.068 R)
• M36: 9,494,528 km (0.087 R)
• M37: 9,700,674 km (0.105 R)
• M38: 9,848,776 km (0.067 R)
• M39: 10,177,442 km (0.048 R)
• M40: 10,907,181 km (0.092 R)
• M41: 11,216,100 km (0.078 R)
• M42: 11,590,693 km (0.035 R)
• M43: 11,842,766 km (0.052 R)
• M44: 11,969,475 km (0.066 R)
• M45: 13,097,443 km (0.113 R)
• M46: 13,558,055 km (0.081 R)
• M47: 14,495,435 km (0.073 R)
• M48: 14,801,064 km (0.08 R)
• M49: 15,557,431 km (0.065 R)
• M50: 15,905,395 km (0.043 R)
• M51: 17,036,056 km (0.081 R)
• M52: 17,466,748 km (0.089 R)
• M53: 17,828,476 km (0.036 R)
• M54: 18,522,311 km (0.087 R)
• M55: 18,595,913 km (0.1 R)
• M56: 19,188,021 km (0.075 R)
• M57: 19,337,021 km (0.059 R)
• M58: 20,314,792 km (0.078 R)
• M59: 20,542,630 km (0.12 R)
• M60: 21,001,147 km (0.104 R)
• M61: 21,269,975 km (0.059 R)
• M62: 21,811,370 km (0.102 R)
• M63: 21,889,160 km (0.068 R)
• M64: 22,200,922 km (0.093 R)
• M65: 22,514,180 km (0.062 R)
• M66: 22,592,719 km (0.097 R)
• M67: 23,224,321 km (0.068 R)
• M68: 23,343,401 km (0.075 R)
• M69: 23,781,723 km (0.103 R)
• M70: 26,303,046 km (0.106 R)
• M71: 26,468,650 km (0.088 R)
• M72: 27,595,272 km (0.119 R)
• M73: 27,721,383 km (0.104 R)
• M74: 27,805,607 km (0.068 R)
• M75: 27,889,980 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.5

Radius: 14.9

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.43 AU - 5.69 AU

Year: 4200 Days

Day: 14.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 62,050,786 km

• M1: 187,895 km (0.095 R)
• M2: 284,386 km (0.069 R)
• M3: 404,213 km (0.068 R)
• M4: 711,637 km (0.108 R)
• M5: 877,242 km (0.036 R)
• M6: 1,180,028 km (0.05 R)
• M7: 1,471,594 km (0.092 R)
• M8: 1,579,305 km (0.091 R)
• M9: 1,722,171 km (0.118 R)
• M10: 2,090,032 km (0.034 R)
• M11: 2,446,673 km (0.107 R)
• M12: 2,998,839 km (0.083 R)
• M13: 3,117,919 km (0.057 R)
• M14: 3,238,644 km (0.096 R)
• M15: 3,801,880 km (0.036 R)
• M16: 3,931,282 km (0.06 R)
• M17: 4,084,171 km (0.092 R)
• M18: 4,328,614 km (0.096 R)
• M19: 4,463,851 km (0.077 R)
• M20: 4,600,733 km (0.076 R)
• M21: 5,209,746 km (0.096 R)
• M22: 5,572,820 km (0.106 R)
• M23: 5,919,289 km (0.093 R)
• M24: 6,019,669 km (0.066 R)
• M25: 6,272,938 km (0.063 R)
• M26: 7,000,881 km (0.065 R)
• M27: 7,240,687 km (0.118 R)
• M28: 7,564,566 km (0.093 R)
• M29: 7,920,908 km (0.069 R)
• M30: 8,087,261 km (0.05 R)
• M31: 8,198,861 km (0.1 R)
• M32: 8,423,557 km (0.091 R)
• M33: 8,850,360 km (0.081 R)
• M34: 9,051,868 km (0.119 R)
• M35: 9,167,806 km (0.075 R)
• M36: 9,313,365 km (0.057 R)
• M37: 10,172,954 km (0.111 R)
• M38: 10,780,621 km (0.064 R)
• M39: 10,903,590 km (0.111 R)
• M40: 11,400,255 km (0.055 R)
• M41: 11,745,826 km (0.111 R)
• M42: 11,872,536 km (0.1 R)
• M43: 12,383,413 km (0.111 R)
• M44: 12,576,843 km (0.114 R)
• M45: 13,294,763 km (0.114 R)
• M46: 13,559,102 km (0.097 R)
• M47: 14,193,996 km (0.114 R)
• M48: 14,736,288 km (0.117 R)
• M49: 14,975,644 km (0.107 R)
• M50: 15,147,383 km (0.058 R)
• M51: 15,285,312 km (0.081 R)
• M52: 15,597,074 km (0.08 R)
• M53: 16,156,720 km (0.03 R)
• M54: 16,758,402 km (0.079 R)
• M55: 16,901,119 km (0.067 R)
• M56: 17,584,332 km (0.106 R)
• M57: 18,349,974 km (0.098 R)
• M58: 18,940,736 km (0.112 R)
• M59: 19,462,683 km (0.103 R)
• M60: 19,575,181 km (0.12 R)
• M61: 20,482,791 km (0.098 R)
• M62: 20,673,528 km (0.102 R)
• M63: 21,018,650 km (0.04 R)
• M64: 22,182,223 km (0.077 R)
• M65: 23,446,624 km (0.102 R)
• M66: 23,846,499 km (0.052 R)
• M67: 24,007,167 km (0.089 R)
• M68: 24,167,985 km (0.084 R)
• M69: 25,059,738 km (0.076 R)
• M70: 25,509,579 km (0.086 R)
• M71: 25,920,973 km (0.097 R)
• M72: 26,168,856 km (0.084 R)
• M73: 26,500,515 km (0.084 R)
• M74: 26,791,931 km (0.093 R)
• M75: 27,000,770 km (0.085 R)
• M76: 28,179,901 km (0.107 R)
• M77: 28,349,694 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.9

Radius: 11.6

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 6.89 AU - 8.73 AU

Year: 8053 Days

Day: 12.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 62,050,786 km

• M1: 173,384 km (0.087 R)
• M2: 304,731 km (0.095 R)
• M3: 387,608 km (0.049 R)
• M4: 493,673 km (0.108 R)
• M5: 584,628 km (0.118 R)
• M6: 711,338 km (0.104 R)
• M7: 786,286 km (0.104 R)
• M8: 1,063,042 km (0.077 R)
• M9: 1,168,210 km (0.077 R)
• M10: 1,351,916 km (0.084 R)
• M11: 1,565,392 km (0.058 R)
• M12: 1,811,032 km (0.103 R)
• M13: 1,960,181 km (0.034 R)
• M14: 2,271,195 km (0.058 R)
• M15: 2,550,344 km (0.047 R)
• M16: 3,040,577 km (0.097 R)
• M17: 3,560,130 km (0.105 R)
• M18: 3,667,541 km (0.103 R)
• M19: 4,220,306 km (0.105 R)
• M20: 4,829,019 km (0.105 R)
• M21: 5,068,077 km (0.069 R)
• M22: 5,219,619 km (0.098 R)
• M23: 5,589,425 km (0.093 R)
• M24: 5,714,639 km (0.099 R)
• M25: 6,517,979 km (0.081 R)
• M26: 6,649,925 km (0.067 R)
• M27: 6,749,407 km (0.1 R)
• M28: 7,084,656 km (0.093 R)
• M29: 7,254,300 km (0.118 R)
• M30: 7,391,032 km (0.098 R)
• M31: 7,632,483 km (0.076 R)
• M32: 8,587,666 km (0.085 R)
• M33: 8,805,181 km (0.077 R)
• M34: 8,951,039 km (0.072 R)
• M35: 9,024,342 km (0.079 R)
• M36: 9,693,044 km (0.047 R)
• M37: 10,071,377 km (0.047 R)
• M38: 10,224,117 km (0.051 R)
• M39: 10,454,647 km (0.048 R)
• M40: 11,354,329 km (0.113 R)
• M41: 11,473,409 km (0.104 R)
• M42: 11,633,030 km (0.105 R)
• M43: 12,156,772 km (0.112 R)
• M44: 12,441,905 km (0.086 R)
• M45: 13,060,493 km (0.086 R)
• M46: 13,227,145 km (0.117 R)
• M47: 13,310,770 km (0.075 R)
• M48: 14,413,605 km (0.04 R)
• M49: 14,585,792 km (0.07 R)
• M50: 15,237,890 km (0.108 R)
• M51: 15,545,463 km (0.08 R)
• M52: 16,301,082 km (0.063 R)
• M53: 16,390,691 km (0.086 R)
• M54: 18,779,470 km (0.057 R)
• M55: 19,014,787 km (0.066 R)
• M56: 19,774,595 km (0.096 R)
• M57: 20,302,825 km (0.116 R)
• M58: 20,447,635 km (0.101 R)
• M59: 20,932,931 km (0.118 R)
• M60: 21,177,075 km (0.084 R)
• M61: 23,720,388 km (0.052 R)
• M62: 23,974,854 km (0.103 R)
• M63: 24,179,055 km (0.108 R)
• M64: 24,384,004 km (0.045 R)
• M65: 24,898,621 km (0.107 R)
• M66: 25,729,487 km (0.078 R)
• M67: 26,095,853 km (0.114 R)
• M68: 27,739,036 km (0.1 R)
• M69: 29,143,012 km (0.084 R)
• M70: 29,963,406 km (0.118 R)
• M71: 30,569,876 km (0.109 R)
• M72: 30,680,579 km (0.088 R)
• M73: 31,291,835 km (0.028 R)
• M74: 31,570,985 km (0.077 R)
• M75: 31,963,231 km (0.044 R)
• M76: 32,075,579 km (0.117 R)
• M77: 34,178,027 km (0.088 R)
• M78: 34,869,468 km (0.088 R)
• M79: 35,101,046 km (0.112 R)
• M80: 36,324,757 km (0.084 R)
• M81: 36,442,041 km (0.036 R)
• M82: 36,794,643 km (0.116 R)
• M83: 37,621,770 km (0.091 R)
• M84: 38,813,916 km (0.071 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 719.4

Radius: 4.9

Gravity: 29.96 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 10.86 AU - 16.36 AU

Year: 18525 Days

Day: 19.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 62,050,786 km

• M1: 461,659 km (0.08 R)
• M2: 670,498 km (0.071 R)
• M3: 833,111 km (0.105 R)
• M4: 1,816,866 km (0.118 R)
• M5: 2,348,238 km (0.084 R)
• M6: 2,595,074 km (0.114 R)
• M7: 2,667,180 km (0.108 R)
• M8: 3,622,662 km (0.075 R)
• M9: 3,703,295 km (0.106 R)
• M10: 4,369,604 km (0.083 R)
• M11: 5,162,473 km (0.083 R)
• M12: 5,951,302 km (0.111 R)
• M13: 6,335,470 km (0.078 R)
• M14: 6,926,531 km (0.097 R)
• M15: 7,330,296 km (0.079 R)
• M16: 7,432,471 km (0.086 R)
• M17: 7,535,095 km (0.092 R)
• M18: 9,020,303 km (0.109 R)
• M19: 9,075,056 km (0.074 R)
• M20: 9,129,808 km (0.063 R)
• M21: 9,627,969 km (0.054 R)
• M22: 9,908,465 km (0.079 R)
• M23: 11,233,304 km (0.105 R)
• M24: 11,647,391 km (0.044 R)
• M25: 11,946,288 km (0.054 R)
• M26: 13,603,234 km (0.112 R)
• M27: 14,298,714 km (0.116 R)
• M28: 14,683,031 km (0.116 R)
• M29: 14,747,358 km (0.073 R)
• M30: 15,461,538 km (0.092 R)
• M31: 15,987,973 km (0.107 R)
• M32: 16,991,027 km (0.12 R)
• M33: 17,739,316 km (0.087 R)
• M34: 19,057,123 km (0.097 R)
• M35: 19,409,127 km (0.101 R)
• M36: 20,406,047 km (0.066 R)
• M37: 20,838,385 km (0.081 R)
• M38: 21,273,715 km (0.12 R)
• M39: 21,565,730 km (0.105 R)
• M40: 22,523,455 km (0.097 R)
• M41: 23,119,902 km (0.068 R)
• M42: 23,645,888 km (0.092 R)
• M43: 23,721,435 km (0.115 R)
• M44: 24,633,234 km (0.037 R)
• M45: 26,022,550 km (0.107 R)
• M46: 26,412,850 km (0.096 R)
• M47: 26,805,246 km (0.102 R)
• M48: 27,199,436 km (0.11 R)
• M49: 27,357,711 km (0.117 R)
• M50: 28,715,162 km (0.087 R)
• M51: 30,339,944 km (0.087 R)
• M52: 30,833,168 km (0.109 R)
• M53: 30,998,175 km (0.116 R)
• M54: 32,832,394 km (0.055 R)
• M55: 33,677,622 km (0.086 R)
• M56: 33,762,594 km (0.081 R)
• M57: 34,188,349 km (0.092 R)
• M58: 35,131,115 km (0.035 R)
• M59: 35,476,088 km (0.114 R)
• M60: 36,430,522 km (0.118 R)
• M61: 40,061,412 km (0.092 R)
• M62: 41,055,041 km (0.084 R)
• M63: 41,327,309 km (0.097 R)
• M64: 41,782,685 km (0.108 R)
• M65: 42,056,599 km (0.083 R)
• M66: 46,994,376 km (0.112 R)
• M67: 48,233,196 km (0.068 R)
• M68: 48,808,549 km (0.051 R)
• M69: 49,097,124 km (0.113 R)
• M70: 50,645,462 km (0.055 R)
• M71: 52,504,963 km (0.028 R)
• M72: 53,195,656 km (0.049 R)
• M73: 53,393,574 km (0.101 R)
• M74: 54,985,595 km (0.062 R)
• M75: 55,185,607 km (0.084 R)
• M76: 56,794,981 km (0.049 R)
• M77: 57,808,806 km (0.077 R)
• M78: 57,910,383 km (0.11 R)
• M79: 58,317,888 km (0.053 R)
• M80: 58,726,140 km (0.104 R)
• M81: 58,828,465 km (0.051 R)
• M82: 59,545,637 km (0.107 R)
• M83: 60,059,805 km (0.059 R)
• M84: 61,196,151 km (0.077 R)
• M85: 62,339,377 km (0.119 R)
• M86: 62,443,647 km (0.12 R)
• M87: 63,804,838 km (0.091 R)
• M88: 64,858,306 km (0.116 R)
• M89: 65,917,759 km (0.091 R)
• M90: 68,483,362 km (0.087 R)
• M91: 69,129,924 km (0.039 R)
• M92: 69,561,963 km (0.072 R)
• M93: 70,863,763 km (0.071 R)
• M94: 71,736,069 km (0.107 R)
• M95: 73,051,183 km (0.118 R)
• M96: 73,381,196 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.9

Radius: 6.4

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 12.34 AU - 16.94 AU

Year: 20668 Days

Day: 20.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 62,050,786 km

• M1: 141,520 km (0.099 R)
• M2: 254,915 km (0.092 R)
• M3: 369,956 km (0.112 R)
• M4: 520,601 km (0.119 R)
• M5: 1,106,575 km (0.098 R)
• M6: 1,403,677 km (0.098 R)
• M7: 1,615,358 km (0.042 R)
• M8: 2,128,179 km (0.102 R)
• M9: 2,655,661 km (0.07 R)
• M10: 2,720,288 km (0.076 R)
• M11: 3,536,793 km (0.111 R)
• M12: 3,608,001 km (0.116 R)
• M13: 3,752,064 km (0.039 R)
• M14: 3,824,769 km (0.095 R)
• M15: 4,308,867 km (0.105 R)
• M16: 4,461,756 km (0.106 R)
• M17: 4,655,336 km (0.048 R)
• M18: 5,090,965 km (0.102 R)
• M19: 5,873,811 km (0.097 R)
• M20: 6,000,819 km (0.089 R)
• M21: 6,649,476 km (0.114 R)
• M22: 7,548,858 km (0.078 R)
• M23: 7,872,588 km (0.119 R)
• M24: 8,106,559 km (0.112 R)
• M25: 8,295,352 km (0.111 R)
• M26: 9,508,441 km (0.114 R)
• M27: 9,807,786 km (0.08 R)
• M28: 11,667,736 km (0.057 R)
• M29: 12,149,292 km (0.053 R)
• M30: 12,203,297 km (0.083 R)
• M31: 12,528,522 km (0.061 R)
• M32: 12,692,183 km (0.103 R)
• M33: 12,966,545 km (0.084 R)
• M34: 13,465,304 km (0.076 R)
• M35: 14,253,685 km (0.059 R)
• M36: 14,481,822 km (0.095 R)
• M37: 14,653,560 km (0.101 R)
• M38: 14,826,047 km (0.078 R)
• M39: 15,464,231 km (0.089 R)
• M40: 16,947,644 km (0.062 R)
• M41: 17,189,095 km (0.087 R)
• M42: 17,249,682 km (0.11 R)
• M43: 17,431,892 km (0.091 R)
• M44: 17,492,629 km (0.114 R)
• M45: 17,675,587 km (0.089 R)
• M46: 17,920,628 km (0.098 R)
• M47: 18,043,448 km (0.082 R)
• M48: 19,413,764 km (0.069 R)
• M49: 19,603,305 km (0.072 R)
• M50: 20,047,760 km (0.118 R)
• M51: 20,303,124 km (0.113 R)
• M52: 20,495,507 km (0.105 R)
• M53: 21,792,819 km (0.064 R)
• M54: 22,253,132 km (0.093 R)
• M55: 22,983,020 km (0.097 R)
• M56: 23,788,156 km (0.095 R)
• M57: 26,398,190 km (0.091 R)
• M58: 29,025,278 km (0.088 R)
• M59: 30,994,285 km (0.119 R)
• M60: 33,307,667 km (0.108 R)
• M61: 33,989,683 km (0.088 R)
• M62: 36,529,406 km (0.112 R)
• M63: 36,685,287 km (0.056 R)
• M64: 37,389,445 km (0.117 R)
• M65: 38,414,489 km (0.114 R)
• M66: 38,652,350 km (0.11 R)
• M67: 41,870,200 km (0.072 R)
• M68: 42,934,439 km (0.11 R)
• M69: 43,263,704 km (0.111 R)
• M70: 43,593,717 km (0.076 R)
• M71: 43,841,900 km (0.097 R)
• M72: 44,922,296 km (0.109 R)
• M73: 45,089,397 km (0.078 R)
• M74: 45,843,519 km (0.116 R)
• M75: 45,927,593 km (0.111 R)
• M76: 46,011,667 km (0.069 R)
• M77: 46,855,399 km (0.027 R)
• M78: 47,534,125 km (0.082 R)
• M79: 47,789,489 km (0.06 R)
• M80: 47,874,759 km (0.045 R)
• M81: 48,815,580 km (0.119 R)
• M82: 49,159,207 km (0.091 R)
• M83: 51,412,151 km (0.095 R)
• M84: 52,287,597 km (0.079 R)
• M85: 53,433,068 km (0.114 R)
• M86: 54,586,767 km (0.107 R)
• M87: 54,765,088 km (0.093 R)
• M88: 55,569,475 km (0.11 R)
• M89: 56,107,878 km (0.105 R)
• M90: 56,918,848 km (0.103 R)
• M91: 57,099,562 km (0.1 R)
• M92: 59,833,314 km (0.068 R)
• M93: 60,753,939 km (0.115 R)
• M94: 61,586,601 km (0.118 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: 345 - 11,041 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit