🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.02 AU - 1.08 AU

Year: 389 Days

Day: 29.5 Hours

Environment

Temp: 21 °C

Axial Tilt: 17.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 76,145,765 km

• M1: 663,018 km (0.046 R)
• M2: 689,796 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.97 AU - 1.15 AU

Year: 395 Days

Day: 41.9 Hours

Environment

Temp: 37 °C

Axial Tilt: 45.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.46 AU - 1.62 AU

Year: 691 Days

Day: 30.1 Hours

Environment

Temp: -36 °C

Axial Tilt: 47.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,145,765 km

• M1: 971,489 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.8

Radius: 12.4

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.94 AU - 5.18 AU

Year: 4116 Days

Day: 10.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 76,145,765 km

• M1: 172,187 km (0.109 R)
• M2: 259,552 km (0.058 R)
• M3: 460,761 km (0.118 R)
• M4: 639,531 km (0.08 R)
• M5: 754,871 km (0.083 R)
• M6: 1,045,839 km (0.073 R)
• M7: 1,599,052 km (0.041 R)
• M8: 1,761,964 km (0.086 R)
• M9: 1,961,976 km (0.099 R)
• M10: 2,169,468 km (0.094 R)
• M11: 2,251,298 km (0.115 R)
• M12: 2,658,653 km (0.048 R)
• M13: 2,979,690 km (0.118 R)
• M14: 3,523,329 km (0.075 R)
• M15: 3,856,484 km (0.073 R)
• M16: 4,302,884 km (0.096 R)
• M17: 4,744,496 km (0.075 R)
• M18: 5,047,133 km (0.079 R)
• M19: 5,311,622 km (0.107 R)
• M20: 5,603,188 km (0.034 R)
• M21: 5,785,398 km (0.052 R)
• M22: 6,462,030 km (0.075 R)
• M23: 6,846,197 km (0.092 R)
• M24: 7,237,994 km (0.096 R)
• M25: 7,411,677 km (0.076 R)
• M26: 7,561,574 km (0.069 R)
• M27: 7,839,228 km (0.115 R)
• M28: 8,017,548 km (0.088 R)
• M29: 8,274,857 km (0.078 R)
• M30: 8,378,528 km (0.108 R)
• M31: 8,482,648 km (0.115 R)
• M32: 9,062,938 km (0.101 R)
• M33: 9,438,878 km (0.077 R)
• M34: 9,601,640 km (0.094 R)
• M35: 9,683,470 km (0.092 R)
• M36: 9,874,955 km (0.09 R)
• M37: 9,985,059 km (0.117 R)
• M38: 10,261,965 km (0.047 R)
• M39: 10,653,912 km (0.073 R)
• M40: 11,022,222 km (0.077 R)
• M41: 11,251,106 km (0.087 R)
• M42: 11,888,393 km (0.051 R)
• M43: 12,005,528 km (0.055 R)
• M44: 12,507,728 km (0.091 R)
• M45: 12,656,728 km (0.113 R)
• M46: 13,319,446 km (0.077 R)
• M47: 13,624,476 km (0.088 R)
• M48: 13,900,933 km (0.093 R)
• M49: 14,024,352 km (0.111 R)
• M50: 14,397,000 km (0.089 R)
• M51: 15,215,599 km (0.099 R)
• M52: 15,502,379 km (0.106 R)
• M53: 16,146,397 km (0.076 R)
• M54: 16,276,248 km (0.076 R)
• M55: 16,733,419 km (0.099 R)
• M56: 16,996,562 km (0.066 R)
• M57: 17,194,779 km (0.066 R)
• M58: 17,894,897 km (0.096 R)
• M59: 18,130,215 km (0.117 R)
• M60: 20,505,380 km (0.079 R)
• M61: 20,716,463 km (0.081 R)
• M62: 21,354,198 km (0.056 R)
• M63: 21,461,161 km (0.059 R)
• M64: 21,998,367 km (0.112 R)
• M65: 22,503,858 km (0.094 R)
• M66: 23,122,894 km (0.073 R)
• M67: 23,599,962 km (0.112 R)
• M68: 23,895,118 km (0.052 R)
• M69: 24,377,571 km (0.071 R)
• M70: 24,638,620 km (0.093 R)
• M71: 25,088,311 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400

Radius: 11.1

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 9.03 AU - 13.33 AU

Year: 13519 Days

Day: 5.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 76,145,765 km

• M1: 142,417 km (0.081 R)
• M2: 219,011 km (0.107 R)
• M3: 319,691 km (0.092 R)
• M4: 471,682 km (0.075 R)
• M5: 1,004,251 km (0.079 R)
• M6: 1,222,663 km (0.086 R)
• M7: 1,391,559 km (0.091 R)
• M8: 1,501,065 km (0.09 R)
• M9: 1,590,973 km (0.077 R)
• M10: 1,968,858 km (0.118 R)
• M11: 2,042,909 km (0.095 R)
• M12: 2,480,632 km (0.103 R)
• M13: 2,614,971 km (0.065 R)
• M14: 3,004,224 km (0.091 R)
• M15: 3,744,734 km (0.089 R)
• M16: 4,872,403 km (0.105 R)
• M17: 5,351,265 km (0.109 R)
• M18: 5,455,834 km (0.061 R)
• M19: 6,354,020 km (0.117 R)
• M20: 6,427,921 km (0.082 R)
• M21: 7,182,194 km (0.068 R)
• M22: 8,084,269 km (0.072 R)
• M23: 8,244,787 km (0.105 R)
• M24: 8,487,585 km (0.078 R)
• M25: 8,609,806 km (0.115 R)
• M26: 8,732,626 km (0.102 R)
• M27: 9,146,563 km (0.075 R)
• M28: 9,355,851 km (0.06 R)
• M29: 9,821,998 km (0.1 R)
• M30: 10,732,899 km (0.089 R)
• M31: 11,490,014 km (0.115 R)
• M32: 11,761,385 km (0.072 R)
• M33: 12,495,312 km (0.091 R)
• M34: 13,196,926 km (0.11 R)
• M35: 13,624,028 km (0.103 R)
• M36: 13,863,235 km (0.087 R)
• M37: 14,981,628 km (0.087 R)
• M38: 15,228,614 km (0.055 R)
• M39: 15,626,694 km (0.095 R)
• M40: 15,977,651 km (0.078 R)
• M41: 16,636,630 km (0.076 R)
• M42: 16,841,130 km (0.094 R)
• M43: 16,995,066 km (0.073 R)
• M44: 17,149,451 km (0.066 R)
• M45: 17,356,046 km (0.103 R)
• M46: 18,243,460 km (0.107 R)
• M47: 18,878,653 km (0.064 R)
• M48: 19,736,896 km (0.092 R)
• M49: 19,845,055 km (0.09 R)
• M50: 20,388,993 km (0.065 R)
• M51: 20,553,102 km (0.098 R)
• M52: 20,882,666 km (0.12 R)
• M53: 21,435,879 km (0.11 R)
• M54: 21,770,081 km (0.113 R)
• M55: 22,106,077 km (0.108 R)
• M56: 22,783,157 km (0.094 R)
• M57: 23,124,240 km (0.054 R)
• M58: 23,696,452 km (0.059 R)
• M59: 25,030,267 km (0.069 R)
• M60: 25,206,044 km (0.115 R)
• M61: 25,854,102 km (0.086 R)
• M62: 25,972,584 km (0.113 R)
• M63: 27,467,964 km (0.032 R)
• M64: 28,561,824 km (0.112 R)
• M65: 29,731,978 km (0.037 R)
• M66: 30,666,816 km (0.098 R)
• M67: 32,437,456 km (0.097 R)
• M68: 33,013,707 km (0.063 R)
• M69: 33,593,249 km (0.039 R)
• M70: 33,787,277 km (0.066 R)
• M71: 35,483,717 km (0.036 R)
• M72: 36,342,260 km (0.106 R)
• M73: 36,940,651 km (0.089 R)
• M74: 37,074,092 km (0.034 R)
• M75: 37,341,424 km (0.074 R)
• M76: 38,484,651 km (0.115 R)
• M77: 38,687,655 km (0.04 R)
• M78: 39,366,680 km (0.064 R)
• M79: 39,639,397 km (0.117 R)
• M80: 40,049,744 km (0.029 R)
• M81: 41,219,898 km (0.086 R)
• M82: 41,843,871 km (0.099 R)
• M83: 44,229,358 km (0.058 R)
• M84: 44,441,937 km (0.044 R)
• M85: 45,868,054 km (0.068 R)
• M86: 46,298,746 km (0.119 R)
• M87: 46,730,784 km (0.116 R)
• M88: 47,453,941 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.2

Radius: 13.3

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 10.44 AU - 12.92 AU

Year: 14436 Days

Day: 7.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (57)

Outer Limit: 76,145,765 km

• M1: 632,350 km (0.103 R)
• M2: 1,151,305 km (0.12 R)
• M3: 1,404,425 km (0.061 R)
• M4: 2,667,928 km (0.108 R)
• M5: 3,332,741 km (0.086 R)
• M6: 3,813,699 km (0.034 R)
• M7: 4,286,727 km (0.065 R)
• M8: 4,377,533 km (0.054 R)
• M9: 4,653,840 km (0.091 R)
• M10: 4,778,455 km (0.036 R)
• M11: 4,935,982 km (0.094 R)
• M12: 5,517,020 km (0.074 R)
• M13: 5,749,046 km (0.051 R)
• M14: 6,018,023 km (0.083 R)
• M15: 6,533,837 km (0.075 R)
• M16: 7,829,205 km (0.12 R)
• M17: 8,621,026 km (0.113 R)
• M18: 8,736,216 km (0.06 R)
• M19: 8,890,601 km (0.093 R)
• M20: 9,241,408 km (0.104 R)
• M21: 9,596,853 km (0.111 R)
• M22: 10,158,593 km (0.117 R)
• M23: 10,402,737 km (0.057 R)
• M24: 10,896,709 km (0.106 R)
• M25: 10,979,736 km (0.105 R)
• M26: 11,524,870 km (0.101 R)
• M27: 11,737,000 km (0.117 R)
• M28: 11,993,112 km (0.117 R)
• M29: 14,018,218 km (0.048 R)
• M30: 14,609,578 km (0.085 R)
• M31: 14,747,208 km (0.096 R)
• M32: 14,977,589 km (0.119 R)
• M33: 16,242,140 km (0.11 R)
• M34: 17,931,848 km (0.108 R)
• M35: 18,822,554 km (0.039 R)
• M36: 19,323,707 km (0.059 R)
• M37: 19,677,057 km (0.108 R)
• M38: 21,423,761 km (0.059 R)
• M39: 24,189,976 km (0.086 R)
• M40: 25,008,575 km (0.102 R)
• M41: 25,891,801 km (0.043 R)
• M42: 26,729,250 km (0.059 R)
• M43: 28,087,449 km (0.039 R)
• M44: 28,487,773 km (0.085 R)
• M45: 29,120,722 km (0.085 R)
• M46: 30,166,560 km (0.094 R)
• M47: 30,929,509 km (0.065 R)
• M48: 33,015,203 km (0.049 R)
• M49: 36,383,399 km (0.074 R)
• M50: 39,667,072 km (0.069 R)
• M51: 41,344,214 km (0.087 R)
• M52: 41,930,039 km (0.047 R)
• M53: 42,387,659 km (0.097 R)
• M54: 43,044,394 km (0.071 R)
• M55: 43,439,930 km (0.109 R)
• M56: 43,903,086 km (0.095 R)
• M57: 44,234,744 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 934.6

Radius: 3.3

Gravity: 85.82 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 12.25 AU - 14.85 AU

Year: 18038 Days

Day: 18.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 76,145,765 km

• M1: 185,651 km (0.107 R)
• M2: 429,944 km (0.049 R)
• M3: 670,946 km (0.118 R)
• M4: 1,029,084 km (0.036 R)
• M5: 1,406,519 km (0.107 R)
• M6: 1,690,755 km (0.088 R)
• M7: 1,723,367 km (0.08 R)
• M8: 2,026,752 km (0.088 R)
• M9: 2,096,465 km (0.115 R)
• M10: 2,456,696 km (0.106 R)
• M11: 2,643,843 km (0.074 R)
• M12: 2,758,435 km (0.095 R)
• M13: 2,835,628 km (0.092 R)
• M14: 3,396,320 km (0.074 R)
• M15: 3,646,897 km (0.106 R)
• M16: 4,433,632 km (0.103 R)
• M17: 4,615,244 km (0.102 R)
• M18: 4,707,097 km (0.107 R)
• M19: 4,845,924 km (0.079 R)
• M20: 5,559,954 km (0.104 R)
• M21: 5,755,928 km (0.055 R)
• M22: 5,954,145 km (0.06 R)
• M23: 6,104,192 km (0.099 R)
• M24: 6,357,162 km (0.048 R)
• M25: 7,136,417 km (0.112 R)
• M26: 7,890,540 km (0.101 R)
• M27: 8,444,501 km (0.083 R)
• M28: 8,953,732 km (0.064 R)
• M29: 9,356,599 km (0.115 R)
• M30: 9,942,424 km (0.09 R)
• M31: 11,582,316 km (0.075 R)
• M32: 11,707,081 km (0.103 R)
• M33: 12,020,937 km (0.077 R)
• M34: 12,464,943 km (0.112 R)
• M35: 14,294,226 km (0.063 R)
• M36: 14,495,136 km (0.104 R)
• M37: 15,171,468 km (0.083 R)
• M38: 16,205,189 km (0.081 R)
• M39: 17,048,473 km (0.076 R)
• M40: 19,439,795 km (0.1 R)
• M41: 19,588,046 km (0.115 R)
• M42: 20,863,368 km (0.11 R)
• M43: 21,243,646 km (0.114 R)
• M44: 21,472,830 km (0.082 R)
• M45: 23,100,155 km (0.087 R)
• M46: 23,257,233 km (0.089 R)
• M47: 25,249,877 km (0.097 R)
• M48: 25,492,674 km (0.054 R)
• M49: 26,143,873 km (0.11 R)
• M50: 27,130,920 km (0.077 R)
• M51: 27,545,755 km (0.087 R)
• M52: 27,962,684 km (0.079 R)
• M53: 28,130,084 km (0.093 R)
• M54: 28,465,782 km (0.083 R)
• M55: 28,887,349 km (0.118 R)
• M56: 31,198,935 km (0.086 R)
• M57: 31,633,517 km (0.061 R)
• M58: 31,807,798 km (0.116 R)
• M59: 32,332,887 km (0.099 R)
• M60: 34,282,596 km (0.107 R)
• M61: 34,551,274 km (0.074 R)
• M62: 35,452,302 km (0.063 R)
• M63: 35,542,958 km (0.081 R)
• M64: 35,724,121 km (0.107 R)
• M65: 35,996,688 km (0.089 R)
• M66: 38,201,462 km (0.101 R)
• M67: 40,449,469 km (0.08 R)
• M68: 40,923,246 km (0.074 R)
• M69: 42,163,412 km (0.036 R)
• M70: 42,739,962 km (0.094 R)
• M71: 42,932,794 km (0.048 R)
• M72: 43,319,205 km (0.116 R)
• M73: 43,803,902 km (0.057 R)
• M74: 44,680,695 km (0.054 R)
• M75: 44,876,369 km (0.105 R)
• M76: 46,649,852 km (0.1 R)
• M77: 48,446,223 km (0.105 R)
• M78: 49,656,320 km (0.113 R)
• M79: 50,774,415 km (0.095 R)
• M80: 51,900,588 km (0.036 R)
• M81: 52,724,872 km (0.08 R)
• M82: 55,433,341 km (0.066 R)
• M83: 59,687,755 km (0.105 R)
• M84: 61,309,995 km (0.075 R)
• M85: 61,636,118 km (0.119 R)
• M86: 61,962,989 km (0.088 R)
• M87: 62,399,516 km (0.097 R)
• M88: 64,929,665 km (0.078 R)
• M89: 67,829,769 km (0.12 R)
• M90: 69,408,924 km (0.037 R)
• M91: 69,522,170 km (0.108 R)
• M92: 69,748,810 km (0.115 R)
• M93: 70,202,990 km (0.108 R)
• M94: 72,718,179 km (0.107 R)
• M95: 78,189,421 km (0.06 R)
• M96: 78,307,155 km (0.079 R)
• M97: 78,779,136 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 834.7

Radius: 7.1

Gravity: 16.56 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 12.59 AU - 14.61 AU

Year: 18138 Days

Day: 22.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 76,145,765 km

• M1: 153,188 km (0.085 R)
• M2: 201,060 km (0.03 R)
• M3: 271,969 km (0.119 R)
• M4: 336,446 km (0.102 R)
• M5: 425,756 km (0.055 R)
• M6: 1,466,807 km (0.095 R)
• M7: 1,619,397 km (0.061 R)
• M8: 1,841,699 km (0.045 R)
• M9: 1,973,046 km (0.109 R)
• M10: 2,315,326 km (0.073 R)
• M11: 2,421,690 km (0.051 R)
• M12: 2,602,554 km (0.107 R)
• M13: 2,939,149 km (0.076 R)
• M14: 3,571,350 km (0.032 R)
• M15: 5,001,655 km (0.099 R)
• M16: 5,372,359 km (0.074 R)
• M17: 5,945,019 km (0.084 R)
• M18: 6,140,245 km (0.083 R)
• M19: 6,238,680 km (0.117 R)
• M20: 7,936,616 km (0.09 R)
• M21: 8,642,419 km (0.069 R)
• M22: 9,882,136 km (0.068 R)
• M23: 9,997,626 km (0.113 R)
• M24: 10,229,802 km (0.118 R)
• M25: 10,699,689 km (0.076 R)
• M26: 11,721,292 km (0.107 R)
• M27: 12,836,544 km (0.09 R)
• M28: 13,089,066 km (0.12 R)
• M29: 13,470,839 km (0.091 R)
• M30: 14,115,157 km (0.118 R)
• M31: 14,180,083 km (0.091 R)
• M32: 14,245,158 km (0.027 R)
• M33: 14,572,179 km (0.092 R)
• M34: 15,972,116 km (0.12 R)
• M35: 17,344,976 km (0.054 R)
• M36: 19,618,863 km (0.054 R)
• M37: 20,274,999 km (0.098 R)
• M38: 20,421,905 km (0.088 R)
• M39: 20,716,612 km (0.088 R)
• M40: 21,834,108 km (0.065 R)
• M41: 22,514,031 km (0.112 R)
• M42: 23,972,161 km (0.057 R)
• M43: 24,127,444 km (0.029 R)
• M44: 24,283,026 km (0.092 R)
• M45: 24,516,997 km (0.118 R)
• M46: 25,223,547 km (0.075 R)
• M47: 25,698,371 km (0.098 R)
• M48: 25,936,830 km (0.101 R)
• M49: 26,415,992 km (0.118 R)
• M50: 27,220,978 km (0.091 R)
• M51: 27,464,075 km (0.09 R)
• M52: 28,937,763 km (0.087 R)
• M53: 29,684,257 km (0.101 R)
• M54: 30,437,033 km (0.097 R)
• M55: 30,773,628 km (0.104 R)
• M56: 31,365,587 km (0.106 R)
• M57: 32,560,874 km (0.102 R)
• M58: 32,905,099 km (0.107 R)
• M59: 33,077,585 km (0.086 R)
• M60: 33,423,755 km (0.075 R)
• M61: 34,119,385 km (0.113 R)
• M62: 34,293,965 km (0.094 R)
• M63: 35,083,693 km (0.051 R)
• M64: 35,790,692 km (0.112 R)
• M65: 38,847,276 km (0.085 R)
• M66: 41,147,642 km (0.073 R)
• M67: 42,267,382 km (0.098 R)
• M68: 43,491,841 km (0.053 R)
• M69: 47,136,943 km (0.113 R)
• M70: 51,979,575 km (0.12 R)
• M71: 53,594,784 km (0.101 R)
• M72: 54,102,968 km (0.025 R)
• M73: 54,204,694 km (0.116 R)
• M74: 54,919,323 km (0.064 R)
• M75: 56,254,484 km (0.114 R)
• M76: 56,357,707 km (0.075 R)
• M77: 57,288,804 km (0.117 R)
• M78: 58,433,826 km (0.051 R)
• M79: 59,691,645 km (0.097 R)
• M80: 59,796,812 km (0.117 R)
• M81: 62,447,088 km (0.086 R)
• M82: 62,874,788 km (0.091 R)
• M83: 64,810,884 km (0.113 R)
• M84: 65,677,804 km (0.094 R)
• M85: 67,532,518 km (0.087 R)
• M86: 67,971,438 km (0.085 R)
• M87: 70,069,099 km (0.089 R)
• M88: 70,291,103 km (0.116 R)
• M89: 71,293,109 km (0.103 R)
• M90: 71,404,859 km (0.069 R)
• M91: 71,516,459 km (0.097 R)
• M92: 72,861,344 km (0.096 R)
• M93: 73,086,339 km (0.088 R)
• M94: 75,348,558 km (0.119 R)
• M95: 75,803,784 km (0.077 R)
• M96: 76,031,771 km (0.075 R)

Kuiper Belt

Range: 30.3 - 59.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 11,803 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit