🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.26 AU - 1.54 AU

Year: 580 Days

Day: 44.9 Hours

Environment

Temp: 2 °C

Axial Tilt: 28.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.5 AU - 1.92 AU

Year: 782 Days

Day: 13.9 Hours

Environment

Temp: -35 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.66 AU - 1.8 AU

Year: 796 Days

Day: 31.3 Hours

Environment

Temp: -42 °C

Axial Tilt: 105.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.29 AU - 3.81 AU

Year: 2340 Days

Day: 19.5 Hours

Environment

Temp: -110 °C

Axial Tilt: 12.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.9

Radius: 11.7

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 7.69 AU - 8.75 AU

Year: 8245 Days

Day: 12.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 67,253,042 km

• M1: 147,653 km (0.108 R)
• M2: 236,963 km (0.119 R)
• M3: 480,508 km (0.074 R)
• M4: 553,363 km (0.11 R)
• M5: 799,002 km (0.09 R)
• M6: 900,729 km (0.078 R)
• M7: 1,181,524 km (0.095 R)
• M8: 1,272,779 km (0.114 R)
• M9: 1,575,565 km (0.108 R)
• M10: 1,720,824 km (0.092 R)
• M11: 1,963,023 km (0.12 R)
• M12: 2,072,529 km (0.082 R)
• M13: 2,314,129 km (0.12 R)
• M14: 3,003,476 km (0.092 R)
• M15: 3,315,089 km (0.107 R)
• M16: 3,446,585 km (0.089 R)
• M17: 3,792,456 km (0.053 R)
• M18: 3,870,995 km (0.116 R)
• M19: 4,009,522 km (0.092 R)
• M20: 4,455,922 km (0.085 R)
• M21: 4,580,388 km (0.109 R)
• M22: 4,982,507 km (0.045 R)
• M23: 5,220,517 km (0.079 R)
• M24: 5,843,442 km (0.036 R)
• M25: 5,957,137 km (0.042 R)
• M26: 6,186,770 km (0.088 R)
• M27: 6,302,708 km (0.108 R)
• M28: 7,134,622 km (0.099 R)
• M29: 7,207,625 km (0.112 R)
• M30: 7,427,983 km (0.118 R)
• M31: 7,875,281 km (0.09 R)
• M32: 8,026,225 km (0.102 R)
• M33: 8,280,242 km (0.08 R)
• M34: 8,926,655 km (0.089 R)
• M35: 9,031,672 km (0.095 R)
• M36: 9,110,660 km (0.107 R)
• M37: 9,402,226 km (0.116 R)
• M38: 9,589,373 km (0.096 R)
• M39: 9,967,557 km (0.115 R)
• M40: 10,049,087 km (0.101 R)
• M41: 10,350,527 km (0.111 R)
• M42: 10,571,483 km (0.091 R)
• M43: 10,850,034 km (0.075 R)
• M44: 11,187,527 km (0.054 R)
• M45: 11,329,047 km (0.057 R)
• M46: 12,046,219 km (0.071 R)
• M47: 12,366,358 km (0.067 R)
• M48: 13,313,762 km (0.075 R)
• M49: 13,433,889 km (0.097 R)
• M50: 13,554,315 km (0.084 R)
• M51: 14,345,837 km (0.041 R)
• M52: 14,592,524 km (0.086 R)
• M53: 14,778,325 km (0.097 R)
• M54: 15,183,885 km (0.052 R)
• M55: 15,624,600 km (0.076 R)
• M56: 15,814,739 km (0.075 R)
• M57: 15,910,182 km (0.075 R)
• M58: 16,518,746 km (0.111 R)
• M59: 16,647,849 km (0.107 R)
• M60: 16,906,953 km (0.066 R)
• M61: 17,298,301 km (0.094 R)
• M62: 17,923,919 km (0.113 R)
• M63: 18,423,277 km (0.047 R)
• M64: 18,758,526 km (0.109 R)
• M65: 18,994,591 km (0.1 R)
• M66: 20,292,652 km (0.106 R)
• M67: 20,952,379 km (0.108 R)
• M68: 22,008,390 km (0.11 R)
• M69: 22,257,321 km (0.09 R)
• M70: 22,650,464 km (0.069 R)
• M71: 23,190,064 km (0.078 R)
• M72: 23,443,333 km (0.12 R)
• M73: 24,613,038 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.4

Radius: 12.4

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 8.18 AU - 10.48 AU

Year: 9970 Days

Day: 11.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 67,253,042 km

• M1: 197,170 km (0.063 R)
• M2: 314,156 km (0.052 R)
• M3: 834,457 km (0.1 R)
• M4: 1,239,119 km (0.113 R)
• M5: 1,576,163 km (0.092 R)
• M6: 1,875,658 km (0.067 R)
• M7: 2,078,064 km (0.109 R)
• M8: 2,455,948 km (0.067 R)
• M9: 2,653,118 km (0.067 R)
• M10: 2,830,093 km (0.077 R)
• M11: 2,933,016 km (0.083 R)
• M12: 3,063,465 km (0.091 R)
• M13: 3,169,231 km (0.058 R)
• M14: 3,249,415 km (0.106 R)
• M15: 4,117,532 km (0.043 R)
• M16: 4,205,346 km (0.091 R)
• M17: 4,653,541 km (0.104 R)
• M18: 5,148,560 km (0.079 R)
• M19: 5,889,818 km (0.068 R)
• M20: 6,289,842 km (0.059 R)
• M21: 6,733,400 km (0.071 R)
• M22: 6,871,778 km (0.107 R)
• M23: 8,419,967 km (0.119 R)
• M24: 8,908,703 km (0.116 R)
• M25: 9,291,075 km (0.075 R)
• M26: 9,484,206 km (0.088 R)
• M27: 10,150,964 km (0.12 R)
• M28: 10,270,193 km (0.119 R)
• M29: 10,630,724 km (0.12 R)
• M30: 10,873,372 km (0.031 R)
• M31: 11,405,491 km (0.118 R)
• M32: 11,988,175 km (0.072 R)
• M33: 12,367,854 km (0.104 R)
• M34: 13,574,361 km (0.096 R)
• M35: 13,793,672 km (0.103 R)
• M36: 14,728,060 km (0.118 R)
• M37: 14,953,504 km (0.113 R)
• M38: 15,682,794 km (0.117 R)
• M39: 17,699,672 km (0.1 R)
• M40: 18,276,970 km (0.034 R)
• M41: 18,422,230 km (0.082 R)
• M42: 19,351,532 km (0.056 R)
• M43: 19,450,117 km (0.033 R)
• M44: 19,648,035 km (0.111 R)
• M45: 19,946,183 km (0.099 R)
• M46: 21,663,716 km (0.092 R)
• M47: 23,375,714 km (0.091 R)
• M48: 23,850,089 km (0.067 R)
• M49: 23,956,005 km (0.099 R)
• M50: 24,434,269 km (0.112 R)
• M51: 24,594,488 km (0.104 R)
• M52: 25,508,531 km (0.102 R)
• M53: 26,324,438 km (0.095 R)
• M54: 28,597,727 km (0.112 R)
• M55: 30,300,600 km (0.116 R)
• M56: 30,817,909 km (0.058 R)
• M57: 31,396,105 km (0.049 R)
• M58: 31,512,193 km (0.036 R)
• M59: 32,153,070 km (0.075 R)
• M60: 32,857,228 km (0.038 R)
• M61: 33,329,358 km (0.051 R)
• M62: 34,699,675 km (0.054 R)
• M63: 35,724,121 km (0.085 R)
• M64: 35,966,769 km (0.059 R)
• M65: 37,248,972 km (0.109 R)
• M66: 37,864,717 km (0.077 R)
• M67: 38,297,803 km (0.071 R)
• M68: 38,794,917 km (0.078 R)
• M69: 39,293,975 km (0.082 R)
• M70: 39,544,402 km (0.119 R)
• M71: 39,669,765 km (0.083 R)
• M72: 41,566,217 km (0.054 R)
• M73: 41,757,553 km (0.073 R)
• M74: 42,333,205 km (0.091 R)
• M75: 42,461,411 km (0.093 R)
• M76: 43,169,158 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.2

Radius: 10.8

Gravity: 6.7 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 9.45 AU - 10.43 AU

Year: 10964 Days

Day: 9.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 67,253,042 km

• M1: 284,535 km (0.082 R)
• M2: 895,493 km (0.098 R)
• M3: 1,520,812 km (0.082 R)
• M4: 1,813,874 km (0.048 R)
• M5: 1,993,242 km (0.039 R)
• M6: 2,072,080 km (0.058 R)
• M7: 2,314,578 km (0.069 R)
• M8: 2,566,651 km (0.078 R)
• M9: 3,189,127 km (0.118 R)
• M10: 3,312,845 km (0.083 R)
• M11: 3,438,357 km (0.092 R)
• M12: 3,565,366 km (0.099 R)
• M13: 3,857,082 km (0.081 R)
• M14: 4,672,689 km (0.059 R)
• M15: 4,849,215 km (0.083 R)
• M16: 6,733,550 km (0.114 R)
• M17: 6,893,320 km (0.106 R)
• M18: 7,710,424 km (0.106 R)
• M19: 8,088,009 km (0.047 R)
• M20: 8,215,317 km (0.061 R)
• M21: 8,644,363 km (0.118 R)
• M22: 8,861,579 km (0.048 R)
• M23: 9,036,759 km (0.097 R)
• M24: 9,301,547 km (0.073 R)
• M25: 10,111,470 km (0.114 R)
• M26: 10,386,580 km (0.08 R)
• M27: 11,179,150 km (0.098 R)
• M28: 11,463,535 km (0.063 R)
• M29: 12,039,487 km (0.112 R)
• M30: 12,331,053 km (0.109 R)
• M31: 13,070,216 km (0.12 R)
• M32: 13,671,749 km (0.087 R)
• M33: 14,282,408 km (0.069 R)
• M34: 15,162,791 km (0.094 R)
• M35: 15,900,907 km (0.118 R)
• M36: 16,435,420 km (0.084 R)
• M37: 17,357,392 km (0.09 R)
• M38: 17,467,047 km (0.092 R)
• M39: 17,742,008 km (0.048 R)
• M40: 19,081,807 km (0.078 R)
• M41: 19,194,903 km (0.11 R)
• M42: 19,592,534 km (0.104 R)
• M43: 21,445,004 km (0.082 R)
• M44: 22,332,419 km (0.094 R)
• M45: 23,473,701 km (0.112 R)
• M46: 24,265,523 km (0.076 R)
• M47: 24,511,013 km (0.047 R)
• M48: 24,633,982 km (0.117 R)
• M49: 25,066,170 km (0.065 R)
• M50: 25,252,121 km (0.112 R)
• M51: 25,563,135 km (0.102 R)
• M52: 28,032,098 km (0.047 R)
• M53: 29,458,214 km (0.068 R)
• M54: 29,720,011 km (0.091 R)
• M55: 30,180,024 km (0.084 R)
• M56: 30,907,668 km (0.096 R)
• M57: 31,373,815 km (0.098 R)
• M58: 32,245,522 km (0.077 R)
• M59: 32,650,633 km (0.043 R)
• M60: 34,081,537 km (0.116 R)
• M61: 34,494,127 km (0.081 R)
• M62: 34,632,057 km (0.094 R)
• M63: 34,977,628 km (0.098 R)
• M64: 35,254,833 km (0.096 R)
• M65: 36,301,120 km (0.119 R)
• M66: 37,640,919 km (0.045 R)
• M67: 37,711,978 km (0.085 R)
• M68: 38,566,929 km (0.106 R)
• M69: 40,659,804 km (0.063 R)
• M70: 40,732,658 km (0.097 R)
• M71: 43,011,482 km (0.093 R)
• M72: 43,234,233 km (0.109 R)
• M73: 43,830,082 km (0.109 R)
• M74: 43,904,881 km (0.059 R)
• M75: 43,979,530 km (0.078 R)
• M76: 44,054,329 km (0.065 R)
• M77: 44,353,674 km (0.114 R)
• M78: 45,861,172 km (0.113 R)
• M79: 46,392,693 km (0.062 R)
• M80: 48,539,273 km (0.082 R)
• M81: 48,925,984 km (0.057 R)
• M82: 49,158,459 km (0.102 R)
• M83: 50,404,908 km (0.11 R)
• M84: 50,483,148 km (0.089 R)
• M85: 50,639,777 km (0.097 R)
• M86: 51,346,477 km (0.115 R)
• M87: 51,661,530 km (0.109 R)
• M88: 51,819,356 km (0.087 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.8

Radius: 13.4

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 10.47 AU - 13.85 AU

Year: 14835 Days

Day: 5.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 67,253,042 km

• M1: 242,947 km (0.116 R)
• M2: 362,625 km (0.076 R)
• M3: 468,541 km (0.101 R)
• M4: 734,974 km (0.103 R)
• M5: 865,424 km (0.091 R)
• M6: 1,236,576 km (0.106 R)
• M7: 1,341,893 km (0.099 R)
• M8: 1,487,152 km (0.11 R)
• M9: 1,599,800 km (0.099 R)
• M10: 1,833,920 km (0.112 R)
• M11: 2,017,327 km (0.085 R)
• M12: 2,164,083 km (0.087 R)
• M13: 3,095,928 km (0.088 R)
• M14: 3,365,503 km (0.06 R)
• M15: 3,617,277 km (0.104 R)
• M16: 5,081,989 km (0.093 R)
• M17: 5,756,376 km (0.108 R)
• M18: 6,028,046 km (0.103 R)
• M19: 7,028,108 km (0.105 R)
• M20: 7,449,076 km (0.109 R)
• M21: 8,214,120 km (0.115 R)
• M22: 9,144,170 km (0.098 R)
• M23: 9,675,242 km (0.081 R)
• M24: 10,693,555 km (0.115 R)
• M25: 10,879,056 km (0.108 R)
• M26: 10,990,806 km (0.071 R)
• M27: 11,403,995 km (0.091 R)
• M28: 11,898,865 km (0.086 R)
• M29: 12,439,661 km (0.101 R)
• M30: 12,791,665 km (0.11 R)
• M31: 13,505,397 km (0.069 R)
• M32: 13,625,673 km (0.105 R)
• M33: 13,867,124 km (0.043 R)
• M34: 14,028,989 km (0.046 R)
• M35: 14,682,582 km (0.103 R)
• M36: 15,304,311 km (0.054 R)
• M37: 16,316,939 km (0.073 R)
• M38: 16,573,649 km (0.1 R)
• M39: 16,702,303 km (0.093 R)
• M40: 16,831,556 km (0.104 R)
• M41: 17,047,425 km (0.106 R)
• M42: 18,540,263 km (0.086 R)
• M43: 19,573,834 km (0.038 R)
• M44: 19,709,968 km (0.072 R)
• M45: 20,212,019 km (0.057 R)
• M46: 20,579,880 km (0.027 R)
• M47: 20,672,182 km (0.062 R)
• M48: 21,322,185 km (0.119 R)
• M49: 21,884,523 km (0.042 R)
• M50: 22,026,042 km (0.069 R)
• M51: 22,642,087 km (0.103 R)
• M52: 22,832,824 km (0.096 R)
• M53: 23,215,944 km (0.093 R)
• M54: 23,746,268 km (0.072 R)
• M55: 24,231,713 km (0.056 R)
• M56: 24,720,450 km (0.053 R)
• M57: 25,509,279 km (0.087 R)
• M58: 25,906,910 km (0.103 R)
• M59: 26,206,405 km (0.117 R)
• M60: 26,708,007 km (0.11 R)
• M61: 26,859,250 km (0.092 R)
• M62: 27,263,614 km (0.113 R)
• M63: 27,568,344 km (0.1 R)
• M64: 28,232,260 km (0.107 R)
• M65: 30,887,622 km (0.049 R)
• M66: 31,258,176 km (0.113 R)
• M67: 31,843,702 km (0.037 R)
• M68: 31,950,515 km (0.117 R)
• M69: 32,486,524 km (0.115 R)
• M70: 32,971,371 km (0.068 R)
• M71: 33,404,457 km (0.072 R)
• M72: 33,513,065 km (0.106 R)
• M73: 35,986,665 km (0.094 R)
• M74: 36,209,267 km (0.027 R)
• M75: 36,376,667 km (0.09 R)
• M76: 36,712,065 km (0.114 R)
• M77: 36,824,114 km (0.113 R)
• M78: 37,048,661 km (0.094 R)
• M79: 37,781,092 km (0.06 R)
• M80: 37,894,337 km (0.089 R)

Planet 9 - Gas Giant

Semi-Major Axis: 13.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.6

Radius: 13.8

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 11.25 AU - 15.17 AU

Year: 16797 Days

Day: 7.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 67,253,042 km

• M1: 182,659 km (0.117 R)
• M2: 307,424 km (0.085 R)
• M3: 790,774 km (0.054 R)
• M4: 967,001 km (0.082 R)
• M5: 1,182,272 km (0.1 R)
• M6: 1,308,981 km (0.12 R)
• M7: 1,522,009 km (0.081 R)
• M8: 2,166,925 km (0.103 R)
• M9: 2,324,751 km (0.11 R)
• M10: 2,454,003 km (0.11 R)
• M11: 2,552,439 km (0.093 R)
• M12: 2,787,756 km (0.071 R)
• M13: 3,462,144 km (0.101 R)
• M14: 3,723,341 km (0.104 R)
• M15: 4,344,621 km (0.112 R)
• M16: 4,586,072 km (0.114 R)
• M17: 5,466,157 km (0.096 R)
• M18: 6,037,022 km (0.118 R)
• M19: 6,581,110 km (0.057 R)
• M20: 7,283,322 km (0.101 R)
• M21: 7,474,658 km (0.07 R)
• M22: 7,667,639 km (0.102 R)
• M23: 8,556,849 km (0.116 R)
• M24: 8,758,806 km (0.059 R)
• M25: 9,167,657 km (0.115 R)
• M26: 9,374,551 km (0.111 R)
• M27: 12,600,329 km (0.086 R)
• M28: 12,830,561 km (0.101 R)
• M29: 13,236,719 km (0.106 R)
• M30: 13,470,690 km (0.031 R)
• M31: 13,824,190 km (0.087 R)
• M32: 15,576,130 km (0.077 R)
• M33: 16,133,981 km (0.102 R)
• M34: 17,014,963 km (0.108 R)
• M35: 19,483,776 km (0.118 R)
• M36: 19,616,918 km (0.074 R)
• M37: 19,750,210 km (0.099 R)
• M38: 20,421,456 km (0.065 R)
• M39: 20,827,764 km (0.106 R)
• M40: 21,100,181 km (0.092 R)
• M41: 22,132,107 km (0.062 R)
• M42: 22,899,395 km (0.079 R)
• M43: 24,531,657 km (0.086 R)
• M44: 25,398,278 km (0.101 R)
• M45: 27,012,888 km (0.112 R)
• M46: 27,384,339 km (0.072 R)
• M47: 27,982,431 km (0.07 R)
• M48: 28,207,875 km (0.026 R)
• M49: 28,660,409 km (0.115 R)
• M50: 29,267,627 km (0.119 R)
• M51: 29,725,845 km (0.106 R)
• M52: 32,366,995 km (0.058 R)
• M53: 32,603,659 km (0.118 R)
• M54: 33,157,919 km (0.042 R)
• M55: 33,316,942 km (0.104 R)
• M56: 33,476,114 km (0.072 R)
• M57: 35,325,443 km (0.04 R)
• M58: 38,619,738 km (0.036 R)
• M59: 38,954,687 km (0.115 R)
• M60: 39,290,385 km (0.091 R)
• M61: 40,643,198 km (0.111 R)
• M62: 42,269,327 km (0.07 R)
• M63: 43,568,136 km (0.107 R)
• M64: 43,655,202 km (0.06 R)
• M65: 44,616,667 km (0.118 R)
• M66: 48,983,429 km (0.103 R)
• M67: 49,709,278 km (0.054 R)
• M68: 49,800,234 km (0.053 R)
• M69: 49,891,339 km (0.071 R)
• M70: 50,164,654 km (0.109 R)
• M71: 50,713,080 km (0.077 R)
• M72: 50,896,337 km (0.089 R)
• M73: 52,277,574 km (0.045 R)
• M74: 53,857,926 km (0.114 R)
• M75: 56,210,203 km (0.088 R)
• M76: 57,160,598 km (0.097 R)
• M77: 57,733,409 km (0.086 R)
• M78: 59,752,980 km (0.114 R)
• M79: 60,917,450 km (0.115 R)
• M80: 61,502,377 km (0.056 R)
• M81: 62,089,250 km (0.032 R)
• M82: 62,481,645 km (0.052 R)
• M83: 64,158,039 km (0.077 R)
• M84: 66,049,255 km (0.106 R)
• M85: 66,249,267 km (0.085 R)

Kuiper Belt

Range: 31.4 - 53.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 281 - 13,432 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit