🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.6 AU - 0.64 AU

Year: 171 Days

Day: 40.5 Hours

Environment

Temp: 170 °C

Axial Tilt: 21.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.2 AU - 1.42 AU

Year: 525 Days

Day: 25.9 Hours

Environment

Temp: 11 °C

Axial Tilt: 9.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.75 AU - 3.99 AU

Year: 2663 Days

Day: 38.7 Hours

Environment

Temp: -120 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,903,865 km

• M1: 593,455 km (0.072 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.15 AU - 4.47 AU

Year: 3130 Days

Day: 32.4 Hours

Environment

Temp: -121 °C

Axial Tilt: 12.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 11.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.1

Radius: 14.1

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 9.14 AU - 14.38 AU

Year: 14109 Days

Day: 10.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 106.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 81,903,865 km

• M1: 223,499 km (0.089 R)
• M2: 372,050 km (0.078 R)
• M3: 626,366 km (0.073 R)
• M4: 1,219,372 km (0.118 R)
• M5: 1,878,500 km (0.112 R)
• M6: 2,093,473 km (0.108 R)
• M7: 2,460,436 km (0.115 R)
• M8: 2,636,962 km (0.117 R)
• M9: 2,757,089 km (0.105 R)
• M10: 3,033,994 km (0.053 R)
• M11: 3,953,872 km (0.046 R)
• M12: 5,217,675 km (0.089 R)
• M13: 5,331,519 km (0.101 R)
• M14: 5,953,098 km (0.103 R)
• M15: 6,434,354 km (0.093 R)
• M16: 6,556,725 km (0.072 R)
• M17: 7,264,622 km (0.116 R)
• M18: 7,822,473 km (0.102 R)
• M19: 7,953,072 km (0.05 R)
• M20: 8,349,656 km (0.116 R)
• M21: 8,662,614 km (0.087 R)
• M22: 9,671,353 km (0.115 R)
• M23: 10,189,560 km (0.117 R)
• M24: 11,649,037 km (0.111 R)
• M25: 12,352,446 km (0.06 R)
• M26: 12,709,237 km (0.113 R)
• M27: 13,276,961 km (0.093 R)
• M28: 15,575,083 km (0.107 R)
• M29: 15,684,888 km (0.117 R)
• M30: 16,685,249 km (0.101 R)
• M31: 17,023,340 km (0.073 R)
• M32: 17,591,962 km (0.097 R)
• M33: 18,806,098 km (0.095 R)
• M34: 19,749,312 km (0.103 R)
• M35: 19,868,243 km (0.093 R)
• M36: 20,406,795 km (0.113 R)
• M37: 21,010,572 km (0.094 R)
• M38: 22,794,976 km (0.096 R)
• M39: 22,919,890 km (0.067 R)
• M40: 23,610,733 km (0.1 R)
• M41: 24,181,000 km (0.046 R)
• M42: 24,308,308 km (0.085 R)
• M43: 24,499,793 km (0.045 R)
• M44: 26,507,247 km (0.117 R)
• M45: 27,431,163 km (0.076 R)
• M46: 27,963,881 km (0.114 R)
• M47: 28,298,532 km (0.039 R)
• M48: 28,634,528 km (0.059 R)
• M49: 29,378,329 km (0.086 R)
• M50: 31,161,835 km (0.111 R)
• M51: 31,578,315 km (0.069 R)
• M52: 31,857,016 km (0.086 R)
• M53: 34,617,246 km (0.081 R)
• M54: 35,409,517 km (0.12 R)
• M55: 37,085,462 km (0.105 R)
• M56: 37,748,330 km (0.071 R)
• M57: 38,118,285 km (0.093 R)
• M58: 38,266,537 km (0.037 R)
• M59: 38,936,287 km (0.086 R)
• M60: 40,514,245 km (0.048 R)
• M61: 44,744,873 km (0.119 R)
• M62: 45,607,753 km (0.064 R)
• M63: 47,111,062 km (0.042 R)
• M64: 48,871,979 km (0.055 R)
• M65: 49,436,860 km (0.106 R)
• M66: 49,760,590 km (0.03 R)
• M67: 50,573,056 km (0.032 R)
• M68: 53,533,897 km (0.115 R)
• M69: 53,866,304 km (0.061 R)
• M70: 54,116,132 km (0.113 R)
• M71: 54,951,487 km (0.068 R)
• M72: 55,791,179 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 12.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640

Radius: 9.1

Gravity: 7.73 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 11.54 AU - 13.8 AU

Year: 15778 Days

Day: 7.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 81,903,865 km

• M1: 135,536 km (0.047 R)
• M2: 582,833 km (0.087 R)
• M3: 698,323 km (0.105 R)
• M4: 821,891 km (0.096 R)
• M5: 2,426,029 km (0.065 R)
• M6: 2,847,895 km (0.072 R)
• M7: 3,050,450 km (0.062 R)
• M8: 3,541,281 km (0.109 R)
• M9: 3,686,092 km (0.1 R)
• M10: 4,132,492 km (0.034 R)
• M11: 4,285,081 km (0.037 R)
• M12: 4,400,721 km (0.109 R)
• M13: 5,322,094 km (0.06 R)
• M14: 5,488,297 km (0.041 R)
• M15: 5,656,295 km (0.068 R)
• M16: 6,170,314 km (0.077 R)
• M17: 6,744,171 km (0.055 R)
• M18: 7,014,794 km (0.083 R)
• M19: 7,613,484 km (0.071 R)
• M20: 7,895,177 km (0.094 R)
• M21: 8,180,460 km (0.054 R)
• M22: 8,420,864 km (0.031 R)
• M23: 9,305,287 km (0.096 R)
• M24: 10,949,367 km (0.081 R)
• M25: 11,858,773 km (0.088 R)
• M26: 12,570,559 km (0.089 R)
• M27: 13,239,711 km (0.072 R)
• M28: 13,692,394 km (0.107 R)
• M29: 13,920,531 km (0.118 R)
• M30: 14,554,676 km (0.088 R)
• M31: 15,791,252 km (0.062 R)
• M32: 16,816,895 km (0.092 R)
• M33: 17,000,152 km (0.095 R)
• M34: 17,122,673 km (0.106 R)
• M35: 17,491,881 km (0.118 R)
• M36: 18,301,056 km (0.086 R)
• M37: 18,426,718 km (0.056 R)
• M38: 18,805,200 km (0.11 R)
• M39: 18,931,910 km (0.104 R)
• M40: 20,149,936 km (0.117 R)
• M41: 20,344,562 km (0.065 R)
• M42: 20,539,788 km (0.084 R)
• M43: 21,261,149 km (0.098 R)
• M44: 21,327,121 km (0.068 R)
• M45: 22,057,458 km (0.045 R)
• M46: 22,191,049 km (0.118 R)
• M47: 22,459,278 km (0.103 R)
• M48: 22,526,447 km (0.107 R)
• M49: 23,270,098 km (0.115 R)
• M50: 24,159,458 km (0.027 R)
• M51: 24,228,273 km (0.108 R)
• M52: 24,504,430 km (0.092 R)
• M53: 25,689,545 km (0.117 R)
• M54: 25,971,088 km (0.117 R)
• M55: 27,322,555 km (0.045 R)
• M56: 27,394,362 km (0.111 R)
• M57: 27,466,169 km (0.085 R)
• M58: 29,649,849 km (0.091 R)
• M59: 29,797,353 km (0.096 R)
• M60: 29,945,155 km (0.063 R)
• M61: 30,538,909 km (0.071 R)
• M62: 33,795,805 km (0.111 R)
• M63: 34,413,793 km (0.119 R)
• M64: 34,491,285 km (0.081 R)
• M65: 35,582,602 km (0.119 R)
• M66: 36,764,425 km (0.108 R)
• M67: 36,922,998 km (0.066 R)
• M68: 37,320,330 km (0.084 R)
• M69: 38,279,851 km (0.118 R)
• M70: 41,206,584 km (0.086 R)
• M71: 42,447,199 km (0.057 R)
• M72: 42,780,204 km (0.111 R)
• M73: 43,784,006 km (0.025 R)
• M74: 45,559,433 km (0.103 R)
• M75: 46,927,954 km (0.098 R)
• M76: 47,444,665 km (0.111 R)
• M77: 48,918,653 km (0.074 R)
• M78: 49,005,869 km (0.109 R)
• M79: 50,231,823 km (0.1 R)
• M80: 53,699,801 km (0.041 R)
• M81: 55,326,229 km (0.097 R)
• M82: 55,781,007 km (0.071 R)
• M83: 59,555,810 km (0.113 R)
• M84: 60,021,807 km (0.112 R)
• M85: 60,489,001 km (0.064 R)
• M86: 61,709,271 km (0.099 R)
• M87: 62,558,838 km (0.07 R)
• M88: 62,748,228 km (0.116 R)
• M89: 63,222,304 km (0.062 R)
• M90: 63,412,293 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 42.2

Radius: 5.9

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 10.18 AU - 16.62 AU

Year: 17161 Days

Day: 18.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 81,903,865 km

• M1: 80,184 km (0.053 R)
• M2: 200,162 km (0.099 R)
• M3: 521,797 km (0.106 R)
• M4: 607,068 km (0.104 R)
• M5: 828,473 km (0.089 R)
• M6: 929,152 km (0.113 R)
• M7: 1,170,304 km (0.079 R)
• M8: 1,312,721 km (0.091 R)
• M9: 1,475,783 km (0.102 R)
• M10: 1,740,721 km (0.084 R)
• M11: 3,274,997 km (0.064 R)
• M12: 3,395,423 km (0.056 R)
• M13: 3,849,004 km (0.06 R)
• M14: 3,976,012 km (0.112 R)
• M15: 4,387,257 km (0.108 R)
• M16: 5,203,463 km (0.079 R)
• M17: 5,414,695 km (0.115 R)
• M18: 5,724,961 km (0.119 R)
• M19: 6,016,378 km (0.081 R)
• M20: 6,163,881 km (0.117 R)
• M21: 6,412,513 km (0.07 R)
• M22: 7,048,304 km (0.092 R)
• M23: 7,281,976 km (0.088 R)
• M24: 8,133,786 km (0.082 R)
• M25: 8,188,090 km (0.114 R)
• M26: 8,406,353 km (0.077 R)
• M27: 8,516,308 km (0.056 R)
• M28: 8,571,360 km (0.104 R)
• M29: 9,100,936 km (0.072 R)
• M30: 9,157,334 km (0.104 R)
• M31: 9,612,411 km (0.102 R)
• M32: 10,752,347 km (0.113 R)
• M33: 10,811,887 km (0.049 R)
• M34: 10,901,496 km (0.105 R)
• M35: 11,719,048 km (0.073 R)
• M36: 11,995,954 km (0.067 R)
• M37: 12,619,029 km (0.118 R)
• M38: 12,744,991 km (0.104 R)
• M39: 13,252,576 km (0.092 R)
• M40: 13,605,478 km (0.081 R)
• M41: 13,799,207 km (0.034 R)
• M42: 14,484,664 km (0.112 R)
• M43: 15,047,601 km (0.101 R)
• M44: 15,651,378 km (0.094 R)
• M45: 16,365,857 km (0.118 R)
• M46: 16,606,411 km (0.04 R)
• M47: 16,917,425 km (0.071 R)
• M48: 19,400,749 km (0.081 R)
• M49: 21,392,944 km (0.104 R)
• M50: 22,986,760 km (0.115 R)
• M51: 23,992,357 km (0.079 R)
• M52: 24,854,489 km (0.078 R)
• M53: 25,726,795 km (0.042 R)
• M54: 26,447,856 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.2

Radius: 5.5

Gravity: 20.63 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 13.88 AU - 15.44 AU

Year: 19637 Days

Day: 20.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 107.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 81,903,865 km

• M1: 188,942 km (0.103 R)
• M2: 1,809,237 km (0.089 R)
• M3: 2,001,470 km (0.089 R)
• M4: 2,100,055 km (0.107 R)
• M5: 2,475,097 km (0.045 R)
• M6: 2,545,408 km (0.032 R)
• M7: 3,019,483 km (0.112 R)
• M8: 3,402,454 km (0.101 R)
• M9: 4,046,772 km (0.032 R)
• M10: 4,297,947 km (0.116 R)
• M11: 4,382,769 km (0.105 R)
• M12: 5,126,420 km (0.101 R)
• M13: 5,307,134 km (0.075 R)
• M14: 5,581,945 km (0.078 R)
• M15: 5,674,696 km (0.06 R)
• M16: 6,482,824 km (0.043 R)
• M17: 7,427,833 km (0.069 R)
• M18: 7,683,646 km (0.1 R)
• M19: 8,098,930 km (0.067 R)
• M20: 9,278,359 km (0.075 R)
• M21: 9,333,262 km (0.097 R)
• M22: 9,831,871 km (0.109 R)
• M23: 9,943,920 km (0.075 R)
• M24: 10,682,335 km (0.117 R)
• M25: 11,379,461 km (0.099 R)
• M26: 11,497,045 km (0.065 R)
• M27: 12,817,246 km (0.12 R)
• M28: 16,056,938 km (0.056 R)
• M29: 17,460,315 km (0.082 R)
• M30: 18,142,332 km (0.119 R)
• M31: 19,321,463 km (0.075 R)
• M32: 19,884,998 km (0.03 R)
• M33: 20,168,785 km (0.1 R)
• M34: 21,317,248 km (0.071 R)
• M35: 22,192,395 km (0.106 R)
• M36: 22,413,052 km (0.102 R)
• M37: 22,708,358 km (0.097 R)
• M38: 23,153,711 km (0.062 R)
• M39: 24,658,965 km (0.111 R)
• M40: 25,193,179 km (0.084 R)
• M41: 26,818,859 km (0.114 R)
• M42: 27,053,877 km (0.094 R)
• M43: 27,210,955 km (0.11 R)
• M44: 28,238,992 km (0.12 R)
• M45: 28,478,199 km (0.056 R)
• M46: 28,878,074 km (0.105 R)
• M47: 29,926,605 km (0.109 R)
• M48: 30,089,069 km (0.106 R)
• M49: 32,143,945 km (0.047 R)
• M50: 32,643,751 km (0.092 R)
• M51: 32,894,627 km (0.117 R)
• M52: 33,230,175 km (0.037 R)
• M53: 33,820,039 km (0.113 R)
• M54: 35,954,951 km (0.108 R)
• M55: 37,082,320 km (0.067 R)
• M56: 37,256,751 km (0.098 R)
• M57: 37,781,690 km (0.112 R)
• M58: 40,802,670 km (0.053 R)
• M59: 41,434,272 km (0.119 R)
• M60: 41,524,629 km (0.107 R)
• M61: 41,796,598 km (0.116 R)
• M62: 43,072,967 km (0.067 R)
• M63: 44,269,600 km (0.113 R)
• M64: 44,454,653 km (0.101 R)
• M65: 44,732,755 km (0.096 R)
• M66: 46,601,382 km (0.077 R)
• M67: 46,883,973 km (0.053 R)
• M68: 47,072,616 km (0.06 R)
• M69: 47,167,012 km (0.117 R)
• M70: 49,068,550 km (0.119 R)
• M71: 51,092,011 km (0.11 R)
• M72: 51,286,040 km (0.109 R)
• M73: 51,577,755 km (0.065 R)
• M74: 52,064,996 km (0.091 R)
• M75: 56,619,353 km (0.095 R)
• M76: 57,727,275 km (0.091 R)
• M77: 58,030,660 km (0.034 R)
• M78: 58,943,955 km (0.062 R)
• M79: 61,402,596 km (0.058 R)
• M80: 61,712,263 km (0.118 R)
• M81: 62,022,529 km (0.113 R)
• M82: 62,956,170 km (0.114 R)
• M83: 67,161,814 km (0.112 R)
• M84: 67,587,420 km (0.069 R)
• M85: 67,693,934 km (0.078 R)
• M86: 68,013,924 km (0.102 R)
• M87: 70,483,186 km (0.104 R)
• M88: 70,807,365 km (0.115 R)
• M89: 71,348,909 km (0.081 R)
• M90: 72,218,222 km (0.079 R)
• M91: 72,436,037 km (0.098 R)
• M92: 72,763,208 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361.9

Radius: 3.5

Gravity: 29.54 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 17.21 AU - 22.31 AU

Year: 30730 Days

Day: 21.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 81,903,865 km

• M1: 81,531 km (0.109 R)
• M2: 125,363 km (0.088 R)
• M3: 367,113 km (0.043 R)
• M4: 534,214 km (0.112 R)
• M5: 649,853 km (0.095 R)
• M6: 673,938 km (0.04 R)
• M7: 851,212 km (0.094 R)
• M8: 904,319 km (0.06 R)
• M9: 1,216,679 km (0.091 R)
• M10: 1,592,170 km (0.067 R)
• M11: 1,826,740 km (0.087 R)
• M12: 2,036,476 km (0.104 R)
• M13: 2,072,080 km (0.087 R)
• M14: 2,516,535 km (0.111 R)
• M15: 2,868,689 km (0.048 R)
• M16: 3,194,363 km (0.106 R)
• M17: 3,969,430 km (0.1 R)
• M18: 4,240,052 km (0.062 R)
• M19: 4,470,134 km (0.076 R)
• M20: 4,657,281 km (0.065 R)
• M21: 4,751,677 km (0.116 R)
• M22: 4,894,543 km (0.108 R)
• M23: 5,087,375 km (0.032 R)
• M24: 5,480,219 km (0.077 R)
• M25: 5,530,035 km (0.113 R)
• M26: 5,730,795 km (0.115 R)
• M27: 6,769,603 km (0.093 R)
• M28: 6,823,159 km (0.084 R)
• M29: 7,201,193 km (0.079 R)
• M30: 7,865,108 km (0.044 R)
• M31: 8,955,527 km (0.109 R)
• M32: 9,132,052 km (0.071 R)
• M33: 9,309,625 km (0.115 R)
• M34: 10,584,648 km (0.089 R)
• M35: 12,695,623 km (0.065 R)
• M36: 15,210,513 km (0.067 R)
• M37: 16,201,001 km (0.117 R)
• M38: 17,139,278 km (0.12 R)
• M39: 19,904,445 km (0.112 R)
• M40: 21,142,218 km (0.044 R)
• M41: 23,206,220 km (0.075 R)
• M42: 23,935,510 km (0.118 R)
• M43: 25,333,502 km (0.042 R)
• M44: 25,666,207 km (0.095 R)
• M45: 28,121,557 km (0.112 R)
• M46: 28,466,081 km (0.105 R)
• M47: 28,812,101 km (0.094 R)
• M48: 31,807,948 km (0.112 R)
• M49: 32,437,007 km (0.031 R)
• M50: 33,342,523 km (0.113 R)
• M51: 33,798,497 km (0.087 R)
• M52: 33,889,902 km (0.103 R)
• M53: 35,828,989 km (0.048 R)
• M54: 36,015,538 km (0.085 R)
• M55: 37,047,314 km (0.085 R)
• M56: 37,708,986 km (0.115 R)
• M57: 38,469,840 km (0.075 R)
• M58: 40,103,599 km (0.068 R)
• M59: 40,394,118 km (0.069 R)
• M60: 42,546,831 km (0.058 R)
• M61: 43,438,135 km (0.114 R)
• M62: 44,335,573 km (0.036 R)
• M63: 45,239,144 km (0.116 R)
• M64: 46,148,699 km (0.052 R)
• M65: 48,500,677 km (0.104 R)
• M66: 48,810,195 km (0.118 R)
• M67: 49,431,475 km (0.103 R)
• M68: 50,368,257 km (0.119 R)
• M69: 51,415,891 km (0.097 R)
• M70: 51,731,542 km (0.09 R)
• M71: 52,470,705 km (0.109 R)
• M72: 53,213,309 km (0.114 R)
• M73: 55,569,924 km (0.109 R)
• M74: 55,893,953 km (0.052 R)
• M75: 57,523,224 km (0.112 R)
• M76: 58,398,521 km (0.054 R)
• M77: 58,837,740 km (0.094 R)
• M78: 59,278,156 km (0.1 R)
• M79: 59,719,769 km (0.08 R)
• M80: 60,273,132 km (0.101 R)
• M81: 60,383,984 km (0.118 R)
• M82: 60,605,987 km (0.05 R)
• M83: 63,968,050 km (0.091 R)
• M84: 66,815,645 km (0.112 R)
• M85: 67,275,060 km (0.1 R)
• M86: 68,543,949 km (0.117 R)
• M87: 71,339,634 km (0.064 R)
• M88: 71,574,353 km (0.083 R)
• M89: 76,440,922 km (0.111 R)
• M90: 78,006,164 km (0.103 R)
• M91: 80,434,736 km (0.065 R)
• M92: 81,168,214 km (0.049 R)
• M93: 81,903,937 km (0.071 R)

Kuiper Belt

Range: 31.4 - 59.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 331 - 13,883 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit