🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.58 AU - 1.84 AU

Year: 817 Days

Day: 22.4 Hours

Environment

Temp: -47 °C

Axial Tilt: 22 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 4.21 AU - 4.31 AU

Year: 3211 Days

Day: 21.5 Hours

Environment

Temp: -119 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 4.35 AU - 4.49 AU

Year: 3394 Days

Day: 41.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 114,331,564 km

• M1: 187,745 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.8

Radius: 8.9

Gravity: 9.96 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.62 AU - 8.42 AU

Year: 6794 Days

Day: 9.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 114,331,564 km

• M1: 220,208 km (0.097 R)
• M2: 342,729 km (0.11 R)
• M3: 596,447 km (0.07 R)
• M4: 905,815 km (0.096 R)
• M5: 1,104,182 km (0.108 R)
• M6: 1,208,751 km (0.05 R)
• M7: 1,679,984 km (0.064 R)
• M8: 1,760,468 km (0.068 R)
• M9: 1,821,653 km (0.119 R)
• M10: 2,009,698 km (0.041 R)
• M11: 2,116,959 km (0.102 R)
• M12: 2,635,017 km (0.116 R)
• M13: 3,444,491 km (0.076 R)
• M14: 3,889,694 km (0.105 R)
• M15: 4,078,487 km (0.115 R)
• M16: 4,242,596 km (0.12 R)
• M17: 5,096,051 km (0.109 R)
• M18: 5,512,083 km (0.102 R)
• M19: 5,846,883 km (0.117 R)
• M20: 6,535,931 km (0.115 R)
• M21: 6,792,940 km (0.113 R)
• M22: 7,416,614 km (0.102 R)
• M23: 7,684,693 km (0.094 R)
• M24: 7,819,929 km (0.054 R)
• M25: 9,251,282 km (0.039 R)
• M26: 9,359,292 km (0.076 R)
• M27: 10,237,431 km (0.119 R)
• M28: 10,837,319 km (0.109 R)
• M29: 11,179,898 km (0.044 R)
• M30: 11,526,067 km (0.098 R)
• M31: 11,680,901 km (0.105 R)
• M32: 11,875,677 km (0.062 R)
• M33: 12,110,696 km (0.073 R)
• M34: 12,307,716 km (0.088 R)
• M35: 13,471,438 km (0.037 R)
• M36: 14,004,455 km (0.116 R)
• M37: 14,628,129 km (0.114 R)
• M38: 14,795,828 km (0.057 R)
• M39: 15,175,806 km (0.093 R)
• M40: 16,074,890 km (0.097 R)
• M41: 16,683,903 km (0.084 R)
• M42: 16,991,177 km (0.091 R)
• M43: 17,433,388 km (0.109 R)
• M44: 18,874,015 km (0.079 R)
• M45: 19,470,163 km (0.094 R)
• M46: 19,654,767 km (0.104 R)
• M47: 20,916,475 km (0.067 R)
• M48: 21,390,401 km (0.096 R)
• M49: 21,580,989 km (0.103 R)
• M50: 22,108,022 km (0.088 R)
• M51: 22,204,214 km (0.113 R)
• M52: 22,445,515 km (0.103 R)
• M53: 22,882,042 km (0.048 R)
• M54: 23,272,342 km (0.107 R)
• M55: 23,370,329 km (0.077 R)
• M56: 24,158,710 km (0.055 R)
• M57: 24,805,721 km (0.081 R)
• M58: 25,106,263 km (0.116 R)
• M59: 26,116,796 km (0.119 R)
• M60: 26,575,912 km (0.104 R)
• M61: 27,398,551 km (0.088 R)
• M62: 27,502,073 km (0.096 R)
• M63: 27,657,505 km (0.108 R)
• M64: 27,917,057 km (0.102 R)
• M65: 29,227,385 km (0.117 R)
• M66: 29,703,854 km (0.059 R)
• M67: 29,810,218 km (0.102 R)
• M68: 30,129,759 km (0.086 R)
• M69: 30,289,978 km (0.065 R)
• M70: 30,718,427 km (0.071 R)
• M71: 32,016,188 km (0.063 R)
• M72: 33,608,209 km (0.053 R)
• M73: 33,996,266 km (0.074 R)
• M74: 34,497,419 km (0.116 R)
• M75: 34,553,219 km (0.086 R)
• M76: 34,888,916 km (0.103 R)
• M77: 34,945,015 km (0.079 R)
• M78: 35,281,910 km (0.081 R)
• M79: 35,450,806 km (0.058 R)
• M80: 35,902,442 km (0.044 R)
• M81: 35,958,990 km (0.079 R)
• M82: 36,299,175 km (0.079 R)
• M83: 36,469,567 km (0.109 R)
• M84: 36,868,395 km (0.085 R)
• M85: 37,039,834 km (0.074 R)
• M86: 38,131,300 km (0.074 R)
• M87: 38,189,045 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.9

Radius: 9.7

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 6.87 AU - 7.69 AU

Year: 7174 Days

Day: 9.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (60)

Outer Limit: 114,331,564 km

• M1: 129,701 km (0.067 R)
• M2: 200,461 km (0.043 R)
• M3: 297,700 km (0.082 R)
• M4: 494,720 km (0.086 R)
• M5: 570,566 km (0.071 R)
• M6: 799,750 km (0.113 R)
• M7: 1,049,429 km (0.065 R)
• M8: 1,363,435 km (0.065 R)
• M9: 1,706,463 km (0.088 R)
• M10: 1,793,678 km (0.094 R)
• M11: 2,064,750 km (0.064 R)
• M12: 2,361,103 km (0.116 R)
• M13: 2,446,524 km (0.037 R)
• M14: 2,608,089 km (0.112 R)
• M15: 2,837,572 km (0.067 R)
• M16: 3,007,516 km (0.099 R)
• M17: 3,113,730 km (0.101 R)
• M18: 3,180,750 km (0.099 R)
• M19: 3,357,425 km (0.066 R)
• M20: 3,495,504 km (0.087 R)
• M21: 3,878,026 km (0.028 R)
• M22: 3,993,814 km (0.108 R)
• M23: 4,110,949 km (0.071 R)
• M24: 4,184,701 km (0.118 R)
• M25: 4,484,196 km (0.094 R)
• M26: 4,993,577 km (0.096 R)
• M27: 5,056,558 km (0.074 R)
• M28: 6,218,933 km (0.042 R)
• M29: 6,543,560 km (0.069 R)
• M30: 6,699,292 km (0.114 R)
• M31: 6,944,034 km (0.098 R)
• M32: 7,262,977 km (0.104 R)
• M33: 7,514,451 km (0.113 R)
• M34: 7,860,321 km (0.064 R)
• M35: 8,044,326 km (0.049 R)
• M36: 8,398,125 km (0.071 R)
• M37: 8,662,166 km (0.101 R)
• M38: 8,833,305 km (0.109 R)
• M39: 9,005,493 km (0.029 R)
• M40: 9,275,816 km (0.07 R)
• M41: 9,548,682 km (0.062 R)
• M42: 9,784,598 km (0.073 R)
• M43: 10,142,287 km (0.107 R)
• M44: 10,383,139 km (0.111 R)
• M45: 10,707,168 km (0.084 R)
• M46: 10,768,354 km (0.114 R)
• M47: 10,932,014 km (0.042 R)
• M48: 11,117,067 km (0.112 R)
• M49: 11,406,987 km (0.087 R)
• M50: 11,804,319 km (0.053 R)
• M51: 12,206,438 km (0.115 R)
• M52: 12,505,484 km (0.066 R)
• M53: 12,591,354 km (0.103 R)
• M54: 13,110,907 km (0.086 R)
• M55: 13,329,619 km (0.11 R)
• M56: 13,681,772 km (0.043 R)
• M57: 14,238,277 km (0.061 R)
• M58: 15,121,203 km (0.048 R)
• M59: 15,373,425 km (0.096 R)
• M60: 15,488,466 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 431

Radius: 7.9

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 12.21 AU - 15.05 AU

Year: 18380 Days

Day: 23.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 114,331,564 km

• M1: 119,977 km (0.101 R)
• M2: 450,439 km (0.116 R)
• M3: 572,212 km (0.105 R)
• M4: 666,159 km (0.08 R)
• M5: 848,968 km (0.115 R)
• M6: 1,048,083 km (0.088 R)
• M7: 1,704,518 km (0.081 R)
• M8: 2,132,218 km (0.096 R)
• M9: 2,529,251 km (0.053 R)
• M10: 2,655,961 km (0.059 R)
• M11: 2,720,288 km (0.085 R)
• M12: 2,784,914 km (0.119 R)
• M13: 3,015,594 km (0.111 R)
• M14: 3,321,372 km (0.065 R)
• M15: 4,335,197 km (0.106 R)
• M16: 5,153,946 km (0.062 R)
• M17: 5,767,596 km (0.084 R)
• M18: 7,107,844 km (0.089 R)
• M19: 7,514,301 km (0.109 R)
• M20: 7,789,561 km (0.096 R)
• M21: 7,974,913 km (0.107 R)
• M22: 8,302,831 km (0.097 R)
• M23: 9,509,338 km (0.095 R)
• M24: 10,615,914 km (0.047 R)
• M25: 11,132,176 km (0.115 R)
• M26: 11,236,446 km (0.046 R)
• M27: 12,082,272 km (0.028 R)
• M28: 13,113,001 km (0.109 R)
• M29: 14,511,741 km (0.114 R)
• M30: 14,911,766 km (0.089 R)
• M31: 15,606,050 km (0.049 R)
• M32: 19,987,772 km (0.093 R)
• M33: 20,241,639 km (0.03 R)
• M34: 20,688,488 km (0.12 R)
• M35: 23,304,057 km (0.069 R)
• M36: 23,370,778 km (0.032 R)
• M37: 23,839,617 km (0.051 R)
• M38: 23,974,106 km (0.075 R)
• M39: 25,952,837 km (0.119 R)
• M40: 26,716,833 km (0.096 R)
• M41: 27,136,755 km (0.096 R)
• M42: 27,983,179 km (0.111 R)
• M43: 29,125,209 km (0.106 R)
• M44: 29,268,973 km (0.12 R)
• M45: 29,485,142 km (0.053 R)
• M46: 30,939,832 km (0.083 R)
• M47: 31,086,587 km (0.115 R)
• M48: 32,120,308 km (0.115 R)
• M49: 32,268,859 km (0.094 R)
• M50: 33,918,475 km (0.113 R)
• M51: 34,145,564 km (0.08 R)
• M52: 35,365,086 km (0.085 R)
• M53: 36,211,661 km (0.09 R)
• M54: 37,377,028 km (0.079 R)
• M55: 37,689,837 km (0.077 R)
• M56: 38,003,544 km (0.045 R)
• M57: 39,505,357 km (0.115 R)
• M58: 39,983,771 km (0.098 R)
• M59: 41,430,083 km (0.034 R)
• M60: 42,566,877 km (0.114 R)
• M61: 51,065,981 km (0.043 R)
• M62: 51,413,048 km (0.117 R)
• M63: 52,109,576 km (0.089 R)
• M64: 52,546,551 km (0.063 R)
• M65: 53,336,129 km (0.098 R)
• M66: 54,041,333 km (0.107 R)
• M67: 54,483,545 km (0.063 R)
• M68: 55,282,696 km (0.083 R)
• M69: 55,728,348 km (0.057 R)
• M70: 56,085,738 km (0.1 R)
• M71: 58,245,781 km (0.065 R)
• M72: 59,244,946 km (0.053 R)
• M73: 60,616,459 km (0.096 R)
• M74: 61,536,785 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 381.9

Radius: 4.2

Gravity: 21.65 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 12.79 AU - 16.55 AU

Year: 20523 Days

Day: 15.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 114,331,564 km

• M1: 157,676 km (0.12 R)
• M2: 288,873 km (0.081 R)
• M3: 561,441 km (0.115 R)
• M4: 700,866 km (0.04 R)
• M5: 918,531 km (0.042 R)
• M6: 1,181,075 km (0.079 R)
• M7: 2,125,935 km (0.119 R)
• M8: 2,280,320 km (0.118 R)
• M9: 2,865,547 km (0.118 R)
• M10: 2,899,356 km (0.118 R)
• M11: 3,105,203 km (0.058 R)
• M12: 3,676,667 km (0.098 R)
• M13: 4,088,211 km (0.065 R)
• M14: 4,357,636 km (0.085 R)
• M15: 4,632,896 km (0.11 R)
• M16: 4,994,923 km (0.118 R)
• M17: 5,076,604 km (0.117 R)
• M18: 5,407,813 km (0.098 R)
• M19: 6,442,731 km (0.065 R)
• M20: 7,211,814 km (0.114 R)
• M21: 7,961,748 km (0.112 R)
• M22: 8,491,624 km (0.097 R)
• M23: 8,884,169 km (0.073 R)
• M24: 8,933,686 km (0.07 R)
• M25: 9,182,467 km (0.076 R)
• M26: 9,686,761 km (0.115 R)
• M27: 11,360,163 km (0.102 R)
• M28: 11,846,655 km (0.111 R)
• M29: 13,008,133 km (0.079 R)
• M30: 13,064,382 km (0.053 R)
• M31: 13,403,371 km (0.1 R)
• M32: 14,963,976 km (0.052 R)
• M33: 15,022,917 km (0.04 R)
• M34: 15,616,223 km (0.044 R)
• M35: 16,338,182 km (0.076 R)
• M36: 16,642,165 km (0.047 R)
• M37: 18,505,107 km (0.107 R)
• M38: 18,568,387 km (0.101 R)
• M39: 19,076,870 km (0.093 R)
• M40: 20,042,375 km (0.03 R)
• M41: 20,433,124 km (0.108 R)
• M42: 20,629,397 km (0.092 R)
• M43: 21,820,196 km (0.088 R)
• M44: 21,953,787 km (0.055 R)
• M45: 22,423,823 km (0.11 R)
• M46: 25,735,023 km (0.042 R)
• M47: 26,372,758 km (0.052 R)
• M48: 26,657,742 km (0.119 R)
• M49: 27,230,852 km (0.056 R)
• M50: 27,374,914 km (0.048 R)
• M51: 27,880,555 km (0.12 R)
• M52: 28,098,220 km (0.047 R)
• M53: 28,535,345 km (0.108 R)
• M54: 29,048,167 km (0.11 R)
• M55: 30,529,784 km (0.12 R)
• M56: 30,829,129 km (0.114 R)
• M57: 33,875,091 km (0.062 R)
• M58: 34,417,833 km (0.104 R)
• M59: 34,651,355 km (0.112 R)
• M60: 34,807,385 km (0.107 R)
• M61: 34,963,566 km (0.089 R)
• M62: 35,905,583 km (0.099 R)
• M63: 36,063,409 km (0.093 R)
• M64: 36,379,809 km (0.078 R)
• M65: 37,015,300 km (0.04 R)
• M66: 37,494,313 km (0.069 R)
• M67: 38,377,838 km (0.076 R)
• M68: 38,700,670 km (0.111 R)
• M69: 38,943,617 km (0.117 R)
• M70: 39,268,095 km (0.076 R)
• M71: 42,395,737 km (0.076 R)
• M72: 43,652,060 km (0.072 R)
• M73: 45,175,864 km (0.111 R)
• M74: 45,773,208 km (0.105 R)
• M75: 45,858,778 km (0.117 R)
• M76: 47,754,034 km (0.066 R)
• M77: 48,101,400 km (0.117 R)
• M78: 48,973,406 km (0.092 R)
• M79: 50,467,739 km (0.107 R)
• M80: 51,353,807 km (0.059 R)
• M81: 52,334,421 km (0.112 R)
• M82: 54,133,037 km (0.117 R)
• M83: 54,223,394 km (0.112 R)
• M84: 54,313,901 km (0.063 R)
• M85: 54,495,064 km (0.084 R)
• M86: 54,767,182 km (0.087 R)
• M87: 56,317,914 km (0.099 R)
• M88: 57,790,405 km (0.06 R)
• M89: 58,438,613 km (0.085 R)
• M90: 58,996,164 km (0.059 R)
• M91: 60,116,503 km (0.118 R)
• M92: 60,210,151 km (0.104 R)
• M93: 62,094,037 km (0.098 R)
• M94: 63,043,086 km (0.103 R)
• M95: 63,233,524 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 20 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 871

Radius: 7.6

Gravity: 15.08 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 19.18 AU - 20.82 AU

Year: 32669 Days

Day: 19.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 114,331,564 km

• M1: 467,344 km (0.096 R)
• M2: 629,807 km (0.119 R)
• M3: 907,610 km (0.091 R)
• M4: 1,077,853 km (0.057 R)
• M5: 1,184,965 km (0.043 R)
• M6: 1,258,567 km (0.032 R)
• M7: 1,410,259 km (0.088 R)
• M8: 1,900,940 km (0.12 R)
• M9: 2,075,670 km (0.075 R)
• M10: 2,347,639 km (0.099 R)
• M11: 2,487,962 km (0.112 R)
• M12: 3,282,327 km (0.114 R)
• M13: 3,439,554 km (0.063 R)
• M14: 6,014,582 km (0.086 R)
• M15: 6,078,610 km (0.094 R)
• M16: 6,931,169 km (0.072 R)
• M17: 7,133,275 km (0.083 R)
• M18: 7,960,851 km (0.073 R)
• M19: 8,457,516 km (0.111 R)
• M20: 8,891,349 km (0.081 R)
• M21: 9,037,507 km (0.109 R)
• M22: 9,332,364 km (0.106 R)
• M23: 9,780,410 km (0.065 R)
• M24: 11,324,409 km (0.065 R)
• M25: 12,613,195 km (0.081 R)
• M26: 13,863,235 km (0.116 R)
• M27: 14,032,879 km (0.117 R)
• M28: 17,110,855 km (0.114 R)
• M29: 17,384,170 km (0.044 R)
• M30: 17,567,128 km (0.054 R)
• M31: 17,842,688 km (0.048 R)
• M32: 19,526,412 km (0.117 R)
• M33: 19,811,844 km (0.092 R)
• M34: 20,003,030 km (0.072 R)
• M35: 21,260,251 km (0.089 R)
• M36: 21,750,483 km (0.116 R)
• M37: 22,145,422 km (0.072 R)
• M38: 24,872,591 km (0.088 R)
• M39: 26,223,011 km (0.083 R)
• M40: 26,432,897 km (0.106 R)
• M41: 26,959,930 km (0.074 R)
• M42: 30,524,847 km (0.111 R)
• M43: 30,635,250 km (0.118 R)
• M44: 32,418,307 km (0.089 R)
• M45: 34,349,466 km (0.04 R)
• M46: 34,464,208 km (0.074 R)
• M47: 36,786,116 km (0.057 R)
• M48: 38,322,187 km (0.084 R)
• M49: 38,679,577 km (0.069 R)
• M50: 40,725,926 km (0.11 R)
• M51: 48,609,883 km (0.048 R)
• M52: 49,255,398 km (0.075 R)
• M53: 50,816,003 km (0.048 R)
• M54: 52,128,724 km (0.096 R)
• M55: 53,985,533 km (0.053 R)
• M56: 54,519,897 km (0.055 R)
• M57: 58,036,344 km (0.068 R)
• M58: 58,583,873 km (0.116 R)
• M59: 58,721,054 km (0.113 R)
• M60: 60,098,252 km (0.061 R)
• M61: 61,068,693 km (0.092 R)
• M62: 62,884,512 km (0.081 R)
• M63: 66,140,510 km (0.095 R)
• M64: 66,998,753 km (0.095 R)
• M65: 67,285,681 km (0.109 R)
• M66: 67,429,445 km (0.096 R)
• M67: 70,323,117 km (0.119 R)
• M68: 72,962,023 km (0.074 R)
• M69: 73,257,329 km (0.108 R)
• M70: 74,442,144 km (0.108 R)
• M71: 76,980,820 km (0.034 R)
• M72: 77,582,204 km (0.103 R)
• M73: 79,244,236 km (0.114 R)
• M74: 79,547,770 km (0.114 R)
• M75: 80,612,907 km (0.082 R)
• M76: 81,070,826 km (0.078 R)
• M77: 83,065,115 km (0.116 R)
• M78: 84,145,661 km (0.046 R)
• M79: 84,610,162 km (0.12 R)
• M80: 84,920,278 km (0.114 R)
• M81: 87,728,530 km (0.109 R)
• M82: 88,671,445 km (0.112 R)
• M83: 89,617,652 km (0.089 R)
• M84: 90,250,301 km (0.087 R)
• M85: 91,043,319 km (0.103 R)
• M86: 97,144,519 km (0.051 R)
• M87: 97,306,833 km (0.065 R)
• M88: 98,282,809 km (0.07 R)
• M89: 99,752,758 km (0.101 R)
• M90: 101,229,887 km (0.116 R)
• M91: 101,559,152 km (0.087 R)
• M92: 101,888,866 km (0.119 R)
• M93: 102,549,041 km (0.111 R)
• M94: 103,210,862 km (0.081 R)
• M95: 106,373,212 km (0.106 R)
• M96: 109,229,633 km (0.091 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: 273 - 18,822 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit