🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.49 AU - 0.75 AU

Year: 185 Days

Day: 33.7 Hours

Environment

Temp: 135 °C

Axial Tilt: 44 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.97 AU - 3.28 AU

Year: 1606 Days

Day: 44 Hours

Environment

Temp: -111 °C

Axial Tilt: 27 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.42 AU - 3.9 AU

Year: 2652 Days

Day: 47.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 7.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,891,478 km

• M1: 1,703,471 km (0.082 R)

Asteroid Belt

Center: 5.14 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.5

Radius: 10.3

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 5.91 AU - 7.33 AU

Year: 6451 Days

Day: 12.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 74.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 67,891,478 km

• M1: 138,976 km (0.06 R)
• M2: 282,291 km (0.12 R)
• M3: 375,790 km (0.083 R)
• M4: 465,698 km (0.112 R)
• M5: 671,096 km (0.12 R)
• M6: 839,693 km (0.085 R)
• M7: 1,022,801 km (0.05 R)
• M8: 1,322,445 km (0.071 R)
• M9: 1,455,587 km (0.106 R)
• M10: 1,663,828 km (0.034 R)
• M11: 1,779,018 km (0.084 R)
• M12: 1,896,901 km (0.088 R)
• M13: 2,314,279 km (0.119 R)
• M14: 2,743,176 km (0.049 R)
• M15: 2,845,651 km (0.118 R)
• M16: 2,949,472 km (0.113 R)
• M17: 3,377,621 km (0.106 R)
• M18: 3,863,664 km (0.09 R)
• M19: 3,940,408 km (0.083 R)
• M20: 4,017,750 km (0.038 R)
• M21: 4,312,009 km (0.092 R)
• M22: 4,431,837 km (0.044 R)
• M23: 4,552,712 km (0.076 R)
• M24: 4,674,634 km (0.098 R)
• M25: 5,386,271 km (0.063 R)
• M26: 5,536,916 km (0.111 R)
• M27: 5,798,713 km (0.087 R)
• M28: 5,997,528 km (0.115 R)
• M29: 6,153,858 km (0.119 R)
• M30: 7,072,987 km (0.098 R)
• M31: 7,309,502 km (0.082 R)
• M32: 7,887,697 km (0.118 R)
• M33: 8,108,205 km (0.112 R)
• M34: 8,206,939 km (0.095 R)
• M35: 8,306,123 km (0.085 R)
• M36: 8,530,669 km (0.09 R)
• M37: 9,113,502 km (0.085 R)
• M38: 9,526,542 km (0.06 R)
• M39: 9,604,782 km (0.093 R)
• M40: 10,104,588 km (0.104 R)
• M41: 10,532,139 km (0.062 R)
• M42: 10,612,922 km (0.092 R)
• M43: 10,965,524 km (0.088 R)
• M44: 11,460,244 km (0.105 R)
• M45: 12,357,532 km (0.12 R)
• M46: 12,642,666 km (0.084 R)
• M47: 12,958,766 km (0.102 R)
• M48: 13,510,782 km (0.079 R)
• M49: 13,834,063 km (0.106 R)
• M50: 13,952,096 km (0.109 R)
• M51: 14,159,738 km (0.078 R)
• M52: 14,338,507 km (0.1 R)
• M53: 14,428,116 km (0.118 R)
• M54: 14,728,359 km (0.108 R)
• M55: 14,818,866 km (0.047 R)
• M56: 15,243,425 km (0.069 R)
• M57: 15,334,979 km (0.09 R)
• M58: 15,641,355 km (0.114 R)
• M59: 16,666,699 km (0.07 R)
• M60: 16,760,945 km (0.108 R)
• M61: 17,203,456 km (0.098 R)
• M62: 18,035,220 km (0.096 R)
• M63: 19,044,108 km (0.095 R)
• M64: 19,307,400 km (0.109 R)
• M65: 19,737,943 km (0.076 R)
• M66: 19,904,296 km (0.082 R)
• M67: 20,238,498 km (0.066 R)
• M68: 20,406,346 km (0.11 R)
• M69: 20,675,922 km (0.041 R)
• M70: 21,014,312 km (0.042 R)
• M71: 21,150,297 km (0.06 R)
• M72: 21,559,746 km (0.031 R)
• M73: 21,628,262 km (0.04 R)
• M74: 22,075,410 km (0.107 R)
• M75: 22,525,550 km (0.108 R)
• M76: 22,908,820 km (0.105 R)
• M77: 23,575,876 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.5

Radius: 14.4

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 7.65 AU - 8.13 AU

Year: 8394 Days

Day: 5.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 67,891,478 km

• M1: 189,840 km (0.115 R)
• M2: 327,470 km (0.105 R)
• M3: 445,802 km (0.075 R)
• M4: 571,763 km (0.096 R)
• M5: 758,012 km (0.117 R)
• M6: 967,001 km (0.1 R)
• M7: 1,088,175 km (0.107 R)
• M8: 1,214,884 km (0.078 R)
• M9: 1,346,979 km (0.113 R)
• M10: 1,544,748 km (0.094 R)
• M11: 1,881,792 km (0.043 R)
• M12: 2,173,358 km (0.089 R)
• M13: 2,503,969 km (0.077 R)
• M14: 2,750,357 km (0.046 R)
• M15: 3,030,703 km (0.051 R)
• M16: 3,702,697 km (0.095 R)
• M17: 3,814,596 km (0.109 R)
• M18: 3,984,539 km (0.057 R)
• M19: 4,099,281 km (0.115 R)
• M20: 4,719,813 km (0.086 R)
• M21: 5,529,287 km (0.101 R)
• M22: 5,819,507 km (0.112 R)
• M23: 7,558,133 km (0.086 R)
• M24: 8,688,345 km (0.088 R)
• M25: 8,988,738 km (0.106 R)
• M26: 9,178,129 km (0.099 R)
• M27: 9,677,037 km (0.071 R)
• M28: 9,988,351 km (0.103 R)
• M29: 10,224,117 km (0.054 R)
• M30: 10,342,748 km (0.109 R)
• M31: 10,581,207 km (0.103 R)
• M32: 10,741,277 km (0.082 R)
• M33: 10,902,094 km (0.08 R)
• M34: 11,144,892 km (0.118 R)
• M35: 11,842,467 km (0.105 R)
• M36: 13,022,345 km (0.101 R)
• M37: 13,323,186 km (0.09 R)
• M38: 14,063,397 km (0.026 R)
• M39: 14,683,031 km (0.119 R)
• M40: 15,538,282 km (0.106 R)
• M41: 16,040,781 km (0.042 R)
• M42: 16,178,860 km (0.114 R)
• M43: 17,391,351 km (0.046 R)
• M44: 17,485,747 km (0.098 R)
• M45: 17,627,865 km (0.118 R)
• M46: 19,020,771 km (0.105 R)
• M47: 20,101,017 km (0.089 R)
• M48: 20,299,683 km (0.104 R)
• M49: 20,748,776 km (0.067 R)
• M50: 22,991,547 km (0.117 R)
• M51: 23,355,519 km (0.112 R)
• M52: 25,364,020 km (0.042 R)
• M53: 25,471,281 km (0.09 R)
• M54: 26,280,456 km (0.114 R)
• M55: 26,660,884 km (0.103 R)
• M56: 27,317,469 km (0.072 R)
• M57: 27,758,184 km (0.093 R)
• M58: 28,145,643 km (0.118 R)
• M59: 28,423,595 km (0.085 R)
• M60: 28,646,496 km (0.051 R)
• M61: 28,982,044 km (0.088 R)
• M62: 29,206,591 km (0.043 R)
• M63: 30,965,562 km (0.075 R)
• M64: 31,080,154 km (0.092 R)
• M65: 31,424,978 km (0.092 R)
• M66: 31,540,168 km (0.083 R)
• M67: 31,713,253 km (0.099 R)
• M68: 31,944,681 km (0.074 R)
• M69: 32,350,689 km (0.055 R)
• M70: 32,641,956 km (0.117 R)
• M71: 36,263,421 km (0.117 R)
• M72: 37,051,503 km (0.105 R)
• M73: 37,539,342 km (0.117 R)
• M74: 38,336,698 km (0.115 R)
• M75: 38,768,288 km (0.109 R)
• M76: 39,077,657 km (0.097 R)
• M77: 39,698,637 km (0.066 R)
• M78: 41,265,525 km (0.107 R)
• M79: 41,707,886 km (0.081 R)
• M80: 41,897,876 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 489.1

Radius: 5

Gravity: 19.56 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 11.8 AU - 14.8 AU

Year: 18371 Days

Day: 17.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 67,891,478 km

• M1: 230,381 km (0.084 R)
• M2: 331,359 km (0.068 R)
• M3: 482,603 km (0.041 R)
• M4: 575,802 km (0.057 R)
• M5: 695,630 km (0.073 R)
• M6: 935,884 km (0.102 R)
• M7: 1,101,639 km (0.09 R)
• M8: 1,460,674 km (0.074 R)
• M9: 1,514,828 km (0.09 R)
• M10: 1,795,623 km (0.103 R)
• M11: 1,853,667 km (0.082 R)
• M12: 2,340,758 km (0.099 R)
• M13: 3,680,556 km (0.051 R)
• M14: 3,754,607 km (0.073 R)
• M15: 4,248,280 km (0.106 R)
• M16: 4,482,999 km (0.119 R)
• M17: 4,562,137 km (0.067 R)
• M18: 4,721,907 km (0.065 R)
• M19: 5,590,323 km (0.11 R)
• M20: 6,913,965 km (0.072 R)
• M21: 7,422,598 km (0.061 R)
• M22: 7,469,422 km (0.063 R)
• M23: 7,657,765 km (0.109 R)
• M24: 7,991,069 km (0.074 R)
• M25: 8,135,282 km (0.086 R)
• M26: 9,830,076 km (0.06 R)
• M27: 10,036,372 km (0.043 R)
• M28: 11,358,218 km (0.11 R)
• M29: 12,398,821 km (0.104 R)
• M30: 13,128,260 km (0.086 R)
• M31: 14,746,012 km (0.032 R)
• M32: 14,864,044 km (0.113 R)
• M33: 15,041,468 km (0.115 R)
• M34: 15,758,490 km (0.08 R)
• M35: 16,181,852 km (0.113 R)
• M36: 16,486,583 km (0.037 R)
• M37: 16,731,774 km (0.068 R)
• M38: 16,978,162 km (0.116 R)
• M39: 17,101,729 km (0.12 R)
• M40: 17,912,550 km (0.075 R)
• M41: 18,038,362 km (0.093 R)
• M42: 18,544,750 km (0.095 R)
• M43: 18,991,599 km (0.084 R)
• M44: 19,961,143 km (0.068 R)
• M45: 20,682,354 km (0.109 R)
• M46: 20,814,449 km (0.047 R)
• M47: 21,212,230 km (0.028 R)
• M48: 23,375,864 km (0.055 R)
• M49: 24,623,361 km (0.114 R)
• M50: 24,763,235 km (0.065 R)
• M51: 25,184,652 km (0.087 R)
• M52: 27,038,170 km (0.085 R)
• M53: 27,399,598 km (0.033 R)
• M54: 28,640,363 km (0.117 R)
• M55: 28,861,319 km (0.062 R)
• M56: 28,935,071 km (0.047 R)
• M57: 29,230,676 km (0.106 R)
• M58: 29,378,927 km (0.119 R)
• M59: 30,048,827 km (0.057 R)
• M60: 32,241,483 km (0.103 R)
• M61: 33,009,518 km (0.032 R)
• M62: 33,163,754 km (0.08 R)
• M63: 34,172,791 km (0.028 R)
• M64: 35,349,378 km (0.11 R)
• M65: 35,982,327 km (0.045 R)
• M66: 36,220,636 km (0.086 R)
• M67: 37,179,110 km (0.109 R)
• M68: 38,713,685 km (0.101 R)
• M69: 39,202,720 km (0.04 R)
• M70: 40,269,054 km (0.063 R)
• M71: 40,681,645 km (0.117 R)
• M72: 41,178,609 km (0.114 R)
• M73: 42,178,820 km (0.08 R)
• M74: 42,346,220 km (0.066 R)
• M75: 43,693,948 km (0.071 R)
• M76: 44,372,972 km (0.104 R)
• M77: 44,884,597 km (0.094 R)
• M78: 47,471,743 km (0.111 R)
• M79: 48,432,460 km (0.04 R)
• M80: 49,575,986 km (0.099 R)
• M81: 49,929,785 km (0.109 R)
• M82: 50,550,616 km (0.096 R)
• M83: 51,800,208 km (0.111 R)
• M84: 52,608,784 km (0.069 R)
• M85: 52,969,614 km (0.102 R)
• M86: 56,529,445 km (0.086 R)
• M87: 56,806,500 km (0.111 R)
• M88: 57,826,159 km (0.091 R)
• M89: 58,851,802 km (0.064 R)
• M90: 58,945,301 km (0.104 R)
• M91: 59,226,246 km (0.039 R)
• M92: 61,015,736 km (0.12 R)
• M93: 61,205,126 km (0.07 R)
• M94: 62,727,285 km (0.059 R)
• M95: 63,301,292 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 709

Radius: 5.9

Gravity: 20.37 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 13.14 AU - 18.78 AU

Year: 24149 Days

Day: 24.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 67,891,478 km

• M1: 124,465 km (0.037 R)
• M2: 357,988 km (0.12 R)
• M3: 397,631 km (0.097 R)
• M4: 572,511 km (0.111 R)
• M5: 669,002 km (0.032 R)
• M6: 850,913 km (0.036 R)
• M7: 1,107,323 km (0.108 R)
• M8: 1,260,063 km (0.041 R)
• M9: 1,864,438 km (0.085 R)
• M10: 2,009,548 km (0.101 R)
• M11: 2,830,841 km (0.064 R)
• M12: 3,298,184 km (0.115 R)
• M13: 3,881,018 km (0.089 R)
• M14: 3,927,094 km (0.059 R)
• M15: 4,592,355 km (0.093 R)
• M16: 5,706,560 km (0.037 R)
• M17: 6,024,456 km (0.077 R)
• M18: 6,566,898 km (0.108 R)
• M19: 7,068,350 km (0.1 R)
• M20: 7,409,583 km (0.097 R)
• M21: 7,582,218 km (0.047 R)
• M22: 7,756,051 km (0.026 R)
• M23: 7,990,172 km (0.073 R)
• M24: 9,132,950 km (0.05 R)
• M25: 9,442,169 km (0.116 R)
• M26: 9,566,784 km (0.072 R)
• M27: 9,754,679 km (0.092 R)
• M28: 10,712,853 km (0.093 R)
• M29: 10,908,078 km (0.113 R)
• M30: 11,038,827 km (0.094 R)
• M31: 11,434,364 km (0.093 R)
• M32: 11,500,785 km (0.107 R)
• M33: 12,239,350 km (0.112 R)
• M34: 12,580,134 km (0.113 R)
• M35: 13,903,327 km (0.071 R)
• M36: 15,858,272 km (0.108 R)
• M37: 17,897,740 km (0.043 R)
• M38: 18,051,975 km (0.091 R)
• M39: 18,129,317 km (0.058 R)
• M40: 18,987,261 km (0.12 R)
• M41: 19,938,105 km (0.107 R)
• M42: 20,178,210 km (0.079 R)
• M43: 20,419,361 km (0.084 R)
• M44: 20,904,358 km (0.075 R)
• M45: 21,639,033 km (0.095 R)
• M46: 22,715,090 km (0.05 R)
• M47: 23,470,260 km (0.097 R)
• M48: 24,575,489 km (0.102 R)
• M49: 26,133,701 km (0.116 R)
• M50: 27,902,097 km (0.11 R)
• M51: 32,301,172 km (0.066 R)
• M52: 34,868,421 km (0.1 R)
• M53: 35,835,871 km (0.105 R)
• M54: 37,204,990 km (0.109 R)
• M55: 44,929,476 km (0.088 R)
• M56: 45,665,049 km (0.081 R)
• M57: 48,432,011 km (0.055 R)
• M58: 50,270,420 km (0.111 R)
• M59: 52,021,313 km (0.111 R)
• M60: 54,015,004 km (0.109 R)
• M61: 54,573,154 km (0.119 R)
• M62: 58,648,349 km (0.113 R)
• M63: 59,682,370 km (0.104 R)
• M64: 59,912,900 km (0.104 R)
• M65: 60,375,008 km (0.103 R)
• M66: 60,606,436 km (0.115 R)
• M67: 63,642,525 km (0.079 R)
• M68: 65,773,247 km (0.074 R)
• M69: 66,011,407 km (0.076 R)
• M70: 66,130,636 km (0.056 R)
• M71: 66,727,681 km (0.066 R)
• M72: 67,686,753 km (0.105 R)
• M73: 68,168,010 km (0.047 R)
• M74: 68,529,588 km (0.1 R)
• M75: 69,376,013 km (0.119 R)
• M76: 70,347,501 km (0.109 R)
• M77: 72,426,912 km (0.081 R)
• M78: 72,549,881 km (0.107 R)
• M79: 74,774,700 km (0.12 R)
• M80: 75,895,637 km (0.048 R)
• M81: 78,911,530 km (0.037 R)
• M82: 79,671,637 km (0.042 R)
• M83: 80,052,513 km (0.08 R)
• M84: 81,454,545 km (0.077 R)
• M85: 81,710,357 km (0.103 R)
• M86: 82,350,935 km (0.119 R)
• M87: 82,479,290 km (0.072 R)
• M88: 82,736,150 km (0.103 R)
• M89: 84,670,899 km (0.111 R)
• M90: 85,059,704 km (0.102 R)
• M91: 85,189,405 km (0.11 R)
• M92: 85,319,256 km (0.058 R)
• M93: 86,881,806 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 197.2

Radius: 5.6

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 16.55 AU - 21.49 AU

Year: 31417 Days

Day: 16.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 67,891,478 km

• M1: 86,767 km (0.079 R)
• M2: 404,513 km (0.054 R)
• M3: 494,870 km (0.086 R)
• M4: 992,582 km (0.054 R)
• M5: 1,518,718 km (0.037 R)
• M6: 2,443,382 km (0.098 R)
• M7: 2,543,912 km (0.059 R)
• M8: 3,139,162 km (0.094 R)
• M9: 3,546,517 km (0.084 R)
• M10: 3,584,365 km (0.062 R)
• M11: 4,907,558 km (0.073 R)
• M12: 5,820,105 km (0.118 R)
• M13: 8,244,039 km (0.098 R)
• M14: 8,547,424 km (0.105 R)
• M15: 8,957,472 km (0.078 R)
• M16: 9,531,928 km (0.067 R)
• M17: 9,903,678 km (0.04 R)
• M18: 10,497,432 km (0.036 R)
• M19: 11,606,252 km (0.048 R)
• M20: 12,060,132 km (0.075 R)
• M21: 12,519,696 km (0.078 R)
• M22: 14,414,952 km (0.103 R)
• M23: 14,536,425 km (0.085 R)
• M24: 17,679,776 km (0.049 R)
• M25: 17,809,627 km (0.055 R)
• M26: 19,796,885 km (0.083 R)
• M27: 20,816,544 km (0.067 R)
• M28: 24,336,582 km (0.102 R)
• M29: 24,771,163 km (0.113 R)
• M30: 25,208,438 km (0.116 R)
• M31: 25,427,898 km (0.092 R)
• M32: 25,721,708 km (0.031 R)
• M33: 26,386,671 km (0.028 R)
• M34: 27,282,164 km (0.1 R)
• M35: 27,960,141 km (0.069 R)
• M36: 28,567,658 km (0.049 R)
• M37: 28,949,432 km (0.1 R)
• M38: 30,571,522 km (0.074 R)
• M39: 31,275,679 km (0.025 R)
• M40: 31,906,084 km (0.068 R)
• M41: 32,939,506 km (0.115 R)
• M42: 33,019,392 km (0.104 R)
• M43: 34,794,370 km (0.091 R)
• M44: 35,038,813 km (0.076 R)
• M45: 36,187,127 km (0.096 R)
• M46: 38,773,375 km (0.078 R)
• M47: 39,790,341 km (0.098 R)
• M48: 41,677,518 km (0.06 R)
• M49: 44,209,312 km (0.063 R)
• M50: 44,827,900 km (0.112 R)
• M51: 46,252,520 km (0.07 R)
• M52: 46,431,589 km (0.112 R)
• M53: 46,700,715 km (0.094 R)
• M54: 47,511,237 km (0.091 R)
• M55: 49,878,473 km (0.054 R)
• M56: 50,706,797 km (0.103 R)
• M57: 55,011,027 km (0.077 R)
• M58: 55,580,994 km (0.068 R)
• M59: 57,591,291 km (0.09 R)
• M60: 57,976,954 km (0.088 R)
• M61: 59,333,358 km (0.091 R)
• M62: 60,113,062 km (0.08 R)
• M63: 60,602,247 km (0.099 R)
• M64: 64,562,103 km (0.101 R)
• M65: 67,281,942 km (0.111 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 416 - 19,446 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit