🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.93 AU - 1.19 AU

Year: 411 Days

Day: 40.5 Hours

Environment

Temp: 8 °C

Axial Tilt: 39.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.36 AU - 1.56 AU

Year: 665 Days

Day: 43.2 Hours

Environment

Temp: -39 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 77,705,919 km

• M1: 267,631 km (0.045 R)
• M2: 459,864 km (0.088 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.87 AU - 1.87 AU

Year: 963 Days

Day: 17.6 Hours

Environment

Temp: -63 °C

Axial Tilt: 14.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.5

Radius: 14.2

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 5.01 AU - 5.35 AU

Year: 4441 Days

Day: 7.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 77,705,919 km

• M1: 184,903 km (0.117 R)
• M2: 324,927 km (0.098 R)
• M3: 490,232 km (0.095 R)
• M4: 902,674 km (0.08 R)
• M5: 1,210,097 km (0.029 R)
• M6: 1,337,555 km (0.118 R)
• M7: 1,984,117 km (0.081 R)
• M8: 2,075,222 km (0.105 R)
• M9: 2,325,349 km (0.054 R)
• M10: 2,421,840 km (0.053 R)
• M11: 2,668,976 km (0.039 R)
• M12: 2,821,416 km (0.062 R)
• M13: 3,011,704 km (0.067 R)
• M14: 3,571,200 km (0.102 R)
• M15: 3,911,236 km (0.089 R)
• M16: 4,124,114 km (0.09 R)
• M17: 4,241,997 km (0.063 R)
• M18: 4,521,446 km (0.076 R)
• M19: 4,663,414 km (0.083 R)
• M20: 4,786,384 km (0.103 R)
• M21: 4,951,989 km (0.084 R)
• M22: 5,077,352 km (0.081 R)
• M23: 5,182,818 km (0.067 R)
• M24: 5,310,276 km (0.049 R)
• M25: 5,546,640 km (0.046 R)
• M26: 6,504,216 km (0.036 R)
• M27: 7,155,266 km (0.093 R)
• M28: 7,249,962 km (0.109 R)
• M29: 7,369,042 km (0.097 R)
• M30: 7,973,866 km (0.099 R)
• M31: 8,072,152 km (0.118 R)
• M32: 8,319,736 km (0.074 R)
• M33: 8,494,466 km (0.119 R)
• M34: 8,619,979 km (0.066 R)
• M35: 8,746,240 km (0.076 R)
• M36: 9,568,579 km (0.112 R)
• M37: 9,962,620 km (0.095 R)
• M38: 10,228,306 km (0.117 R)
• M39: 10,442,530 km (0.067 R)
• M40: 11,397,413 km (0.108 R)
• M41: 11,563,915 km (0.106 R)
• M42: 11,927,438 km (0.096 R)
• M43: 12,181,306 km (0.026 R)
• M44: 12,323,125 km (0.056 R)
• M45: 12,437,118 km (0.089 R)
• M46: 12,579,835 km (0.1 R)
• M47: 12,752,022 km (0.071 R)
• M48: 12,924,957 km (0.12 R)
• M49: 13,331,564 km (0.039 R)
• M50: 13,477,721 km (0.071 R)
• M51: 13,742,210 km (0.079 R)
• M52: 14,067,885 km (0.102 R)
• M53: 14,276,574 km (0.075 R)
• M54: 14,999,580 km (0.102 R)
• M55: 15,273,793 km (0.114 R)
• M56: 15,365,496 km (0.068 R)
• M57: 15,518,834 km (0.055 R)
• M58: 16,387,250 km (0.103 R)
• M59: 16,638,126 km (0.117 R)
• M60: 16,827,217 km (0.102 R)
• M61: 17,303,088 km (0.105 R)
• M62: 17,944,564 km (0.109 R)
• M63: 18,138,443 km (0.089 R)
• M64: 18,757,329 km (0.059 R)
• M65: 19,118,757 km (0.116 R)
• M66: 19,250,703 km (0.059 R)
• M67: 19,548,851 km (0.044 R)
• M68: 20,351,294 km (0.09 R)
• M69: 20,892,240 km (0.083 R)
• M70: 22,787,944 km (0.071 R)
• M71: 23,420,145 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.5

Radius: 11.8

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 7.62 AU - 9.54 AU

Year: 9468 Days

Day: 13.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 77,705,919 km

• M1: 151,243 km (0.086 R)
• M2: 266,135 km (0.029 R)
• M3: 370,255 km (0.091 R)
• M4: 634,594 km (0.09 R)
• M5: 801,994 km (0.097 R)
• M6: 959,820 km (0.09 R)
• M7: 1,364,931 km (0.102 R)
• M8: 1,481,767 km (0.12 R)
• M9: 1,632,861 km (0.114 R)
• M10: 1,725,911 km (0.092 R)
• M11: 1,869,225 km (0.063 R)
• M12: 2,150,918 km (0.086 R)
• M13: 2,253,692 km (0.067 R)
• M14: 2,608,388 km (0.111 R)
• M15: 3,470,671 km (0.086 R)
• M16: 3,612,489 km (0.094 R)
• M17: 3,922,755 km (0.107 R)
• M18: 4,113,044 km (0.046 R)
• M19: 4,882,276 km (0.09 R)
• M20: 5,087,375 km (0.118 R)
• M21: 5,365,328 km (0.063 R)
• M22: 5,767,447 km (0.097 R)
• M23: 6,302,558 km (0.056 R)
• M24: 6,376,759 km (0.1 R)
• M25: 6,476,241 km (0.108 R)
• M26: 6,879,108 km (0.104 R)
• M27: 7,368,144 km (0.098 R)
• M28: 7,762,185 km (0.057 R)
• M29: 8,082,474 km (0.111 R)
• M30: 8,298,343 km (0.042 R)
• M31: 8,488,931 km (0.084 R)
• M32: 8,598,437 km (0.115 R)
• M33: 9,013,421 km (0.053 R)
• M34: 9,181,121 km (0.055 R)
• M35: 9,265,494 km (0.034 R)
• M36: 9,633,804 km (0.071 R)
• M37: 9,834,115 km (0.087 R)
• M38: 10,035,923 km (0.089 R)
• M39: 10,384,785 km (0.066 R)
• M40: 10,472,749 km (0.119 R)
• M41: 10,590,332 km (0.075 R)
• M42: 10,767,456 km (0.093 R)
• M43: 11,335,031 km (0.092 R)
• M44: 11,425,537 km (0.116 R)
• M45: 11,942,996 km (0.101 R)
• M46: 12,035,149 km (0.099 R)
• M47: 12,343,919 km (0.119 R)
• M48: 12,437,118 km (0.095 R)
• M49: 12,717,913 km (0.045 R)
• M50: 12,874,842 km (0.049 R)
• M51: 13,064,083 km (0.092 R)
• M52: 13,926,814 km (0.085 R)
• M53: 14,120,992 km (0.036 R)
• M54: 14,381,442 km (0.077 R)
• M55: 14,512,190 km (0.103 R)
• M56: 15,271,998 km (0.046 R)
• M57: 15,438,799 km (0.102 R)
• M58: 16,692,579 km (0.089 R)
• M59: 16,795,652 km (0.091 R)
• M60: 17,418,578 km (0.115 R)
• M61: 17,908,511 km (0.094 R)
• M62: 19,009,102 km (0.089 R)
• M63: 19,767,115 km (0.116 R)
• M64: 19,949,175 km (0.101 R)
• M65: 20,978,259 km (0.098 R)
• M66: 21,089,560 km (0.051 R)
• M67: 22,024,696 km (0.105 R)
• M68: 22,440,578 km (0.084 R)
• M69: 22,782,559 km (0.108 R)
• M70: 22,858,854 km (0.108 R)
• M71: 22,935,298 km (0.115 R)
• M72: 23,088,187 km (0.058 R)
• M73: 23,279,822 km (0.081 R)
• M74: 23,395,013 km (0.115 R)
• M75: 24,051,747 km (0.114 R)
• M76: 24,832,050 km (0.089 R)
• M77: 25,067,816 km (0.085 R)
• M78: 26,297,510 km (0.067 R)
• M79: 26,618,099 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.3

Radius: 8.1

Gravity: 13.01 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 8.6 AU - 8.88 AU

Year: 9734 Days

Day: 9.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 77,705,919 km

• M1: 184,454 km (0.092 R)
• M2: 277,055 km (0.103 R)
• M3: 599,439 km (0.105 R)
• M4: 700,268 km (0.103 R)
• M5: 862,432 km (0.116 R)
• M6: 1,420,432 km (0.094 R)
• M7: 1,604,437 km (0.047 R)
• M8: 1,771,987 km (0.105 R)
• M9: 1,920,089 km (0.118 R)
• M10: 2,228,559 km (0.066 R)
• M11: 2,361,851 km (0.074 R)
• M12: 2,552,888 km (0.06 R)
• M13: 2,777,434 km (0.079 R)
• M14: 3,489,071 km (0.047 R)
• M15: 4,090,903 km (0.084 R)
• M16: 4,420,617 km (0.071 R)
• M17: 4,656,533 km (0.115 R)
• M18: 5,000,758 km (0.078 R)
• M19: 5,282,002 km (0.119 R)
• M20: 5,496,375 km (0.035 R)
• M21: 6,044,801 km (0.056 R)
• M22: 7,232,907 km (0.106 R)
• M23: 7,752,162 km (0.043 R)
• M24: 7,914,475 km (0.098 R)
• M25: 8,324,972 km (0.088 R)
• M26: 9,081,189 km (0.088 R)
• M27: 9,381,282 km (0.114 R)
• M28: 9,467,600 km (0.033 R)
• M29: 9,684,517 km (0.097 R)
• M30: 10,256,430 km (0.105 R)
• M31: 10,434,601 km (0.077 R)
• M32: 12,413,781 km (0.115 R)
• M33: 14,256,527 km (0.102 R)
• M34: 15,007,210 km (0.068 R)
• M35: 15,209,466 km (0.066 R)
• M36: 16,183,049 km (0.065 R)
• M37: 16,390,541 km (0.113 R)
• M38: 16,755,710 km (0.103 R)
• M39: 17,388,209 km (0.074 R)
• M40: 18,082,194 km (0.074 R)
• M41: 18,351,470 km (0.084 R)
• M42: 18,405,475 km (0.04 R)
• M43: 18,730,701 km (0.092 R)
• M44: 20,834,495 km (0.099 R)
• M45: 21,914,143 km (0.057 R)
• M46: 22,374,157 km (0.096 R)
• M47: 22,779,268 km (0.106 R)
• M48: 23,714,404 km (0.062 R)
• M49: 24,068,353 km (0.102 R)
• M50: 24,483,337 km (0.098 R)
• M51: 25,020,543 km (0.105 R)
• M52: 25,803,389 km (0.117 R)
• M53: 26,900,390 km (0.059 R)
• M54: 27,084,844 km (0.085 R)
• M55: 28,075,032 km (0.043 R)
• M56: 28,324,412 km (0.098 R)
• M57: 29,392,541 km (0.05 R)
• M58: 30,282,050 km (0.066 R)
• M59: 31,632,769 km (0.091 R)
• M60: 32,609,643 km (0.111 R)
• M61: 32,806,215 km (0.047 R)
• M62: 32,871,888 km (0.118 R)
• M63: 33,398,323 km (0.069 R)
• M64: 33,662,513 km (0.056 R)
• M65: 33,794,907 km (0.063 R)
• M66: 36,207,472 km (0.084 R)
• M67: 37,365,958 km (0.028 R)
• M68: 38,053,061 km (0.084 R)
• M69: 38,883,179 km (0.069 R)
• M70: 39,859,006 km (0.093 R)
• M71: 39,929,018 km (0.106 R)
• M72: 40,701,990 km (0.076 R)
• M73: 41,337,931 km (0.064 R)
• M74: 42,191,087 km (0.049 R)
• M75: 42,333,953 km (0.101 R)
• M76: 43,122,035 km (0.049 R)
• M77: 43,193,842 km (0.072 R)
• M78: 44,059,565 km (0.117 R)
• M79: 44,276,931 km (0.085 R)
• M80: 44,494,595 km (0.1 R)
• M81: 44,930,972 km (0.031 R)
• M82: 45,368,845 km (0.118 R)
• M83: 48,249,053 km (0.037 R)
• M84: 49,072,141 km (0.094 R)
• M85: 49,824,319 km (0.097 R)
• M86: 49,899,866 km (0.097 R)
• M87: 49,975,263 km (0.081 R)
• M88: 50,277,600 km (0.094 R)

Asteroid Belt

Center: 9.18 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.9

Radius: 13.3

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 7.98 AU - 11.24 AU

Year: 11223 Days

Day: 13.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 97.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 77,705,919 km

• M1: 277,803 km (0.055 R)
• M2: 585,825 km (0.072 R)
• M3: 762,949 km (0.062 R)
• M4: 901,626 km (0.094 R)
• M5: 1,064,838 km (0.031 R)
• M6: 1,526,646 km (0.092 R)
• M7: 1,950,906 km (0.118 R)
• M8: 2,087,489 km (0.081 R)
• M9: 2,187,121 km (0.079 R)
• M10: 2,474,648 km (0.092 R)
• M11: 2,580,414 km (0.112 R)
• M12: 3,064,064 km (0.095 R)
• M13: 3,842,571 km (0.11 R)
• M14: 4,369,305 km (0.03 R)
• M15: 4,999,262 km (0.094 R)
• M16: 5,106,972 km (0.119 R)
• M17: 5,407,514 km (0.113 R)
• M18: 6,026,101 km (0.071 R)
• M19: 6,285,803 km (0.08 R)
• M20: 6,402,340 km (0.112 R)
• M21: 6,549,096 km (0.095 R)
• M22: 6,786,208 km (0.104 R)
• M23: 7,330,296 km (0.105 R)
• M24: 7,607,501 km (0.109 R)
• M25: 7,951,276 km (0.082 R)
• M26: 8,524,685 km (0.119 R)
• M27: 8,718,863 km (0.063 R)
• M28: 9,510,086 km (0.066 R)
• M29: 10,016,325 km (0.083 R)
• M30: 10,427,720 km (0.06 R)
• M31: 10,984,972 km (0.025 R)
• M32: 11,231,808 km (0.038 R)
• M33: 11,480,440 km (0.089 R)
• M34: 11,730,867 km (0.117 R)
• M35: 12,310,409 km (0.099 R)
• M36: 12,493,367 km (0.081 R)
• M37: 13,010,527 km (0.027 R)
• M38: 13,875,502 km (0.085 R)
• M39: 14,065,940 km (0.084 R)
• M40: 14,526,851 km (0.068 R)
• M41: 14,992,549 km (0.089 R)
• M42: 15,938,756 km (0.09 R)
• M43: 16,098,376 km (0.085 R)
• M44: 16,823,178 km (0.081 R)
• M45: 17,148,703 km (0.119 R)
• M46: 17,682,169 km (0.108 R)
• M47: 17,847,475 km (0.118 R)
• M48: 19,400,301 km (0.042 R)
• M49: 20,952,379 km (0.033 R)
• M50: 21,171,091 km (0.077 R)
• M51: 21,434,682 km (0.097 R)
• M52: 21,787,583 km (0.082 R)
• M53: 21,920,576 km (0.043 R)
• M54: 22,187,159 km (0.095 R)
• M55: 22,320,750 km (0.07 R)
• M56: 22,633,709 km (0.082 R)
• M57: 22,948,164 km (0.1 R)
• M58: 23,173,757 km (0.064 R)
• M59: 23,399,949 km (0.054 R)
• M60: 23,991,609 km (0.111 R)
• M61: 25,468,888 km (0.101 R)
• M62: 25,889,707 km (0.116 R)
• M63: 26,501,712 km (0.119 R)
• M64: 27,165,926 km (0.094 R)
• M65: 27,404,535 km (0.119 R)
• M66: 27,643,891 km (0.119 R)
• M67: 28,076,379 km (0.074 R)
• M68: 28,511,110 km (0.09 R)
• M69: 29,191,780 km (0.107 R)
• M70: 29,436,074 km (0.037 R)
• M71: 30,025,489 km (0.119 R)
• M72: 30,717,978 km (0.043 R)
• M73: 31,967,569 km (0.09 R)
• M74: 32,826,859 km (0.083 R)
• M75: 34,001,502 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747.8

Radius: 6.3

Gravity: 18.84 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 13.58 AU - 14.44 AU

Year: 19755 Days

Day: 19.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 77,705,919 km

• M1: 206,894 km (0.115 R)
• M2: 869,313 km (0.11 R)
• M3: 1,247,945 km (0.072 R)
• M4: 1,485,357 km (0.108 R)
• M5: 1,769,444 km (0.026 R)
• M6: 2,002,068 km (0.113 R)
• M7: 2,351,379 km (0.069 R)
• M8: 2,681,841 km (0.09 R)
• M9: 2,833,533 km (0.076 R)
• M10: 3,105,652 km (0.099 R)
• M11: 3,426,988 km (0.071 R)
• M12: 3,886,104 km (0.111 R)
• M13: 3,971,674 km (0.041 R)
• M14: 4,724,002 km (0.106 R)
• M15: 5,046,535 km (0.083 R)
• M16: 5,761,313 km (0.049 R)
• M17: 6,305,401 km (0.045 R)
• M18: 6,609,234 km (0.044 R)
• M19: 6,762,871 km (0.104 R)
• M20: 7,230,963 km (0.116 R)
• M21: 7,655,671 km (0.094 R)
• M22: 8,640,923 km (0.095 R)
• M23: 8,809,071 km (0.119 R)
• M24: 9,377,094 km (0.086 R)
• M25: 9,781,756 km (0.11 R)
• M26: 10,192,253 km (0.058 R)
• M27: 10,251,194 km (0.115 R)
• M28: 10,608,135 km (0.1 R)
• M29: 10,728,112 km (0.109 R)
• M30: 11,951,523 km (0.055 R)
• M31: 12,138,820 km (0.083 R)
• M32: 12,642,965 km (0.1 R)
• M33: 13,154,141 km (0.119 R)
• M34: 13,412,197 km (0.066 R)
• M35: 16,290,161 km (0.091 R)
• M36: 17,055,952 km (0.116 R)
• M37: 17,266,885 km (0.093 R)
• M38: 20,086,057 km (0.095 R)
• M39: 21,586,374 km (0.099 R)
• M40: 22,119,840 km (0.083 R)
• M41: 22,967,013 km (0.108 R)
• M42: 23,511,699 km (0.097 R)
• M43: 24,218,250 km (0.074 R)
• M44: 24,931,682 km (0.104 R)
• M45: 29,439,215 km (0.097 R)
• M46: 30,030,576 km (0.064 R)
• M47: 30,285,341 km (0.062 R)
• M48: 31,311,134 km (0.098 R)
• M49: 32,174,612 km (0.115 R)
• M50: 32,783,775 km (0.11 R)
• M51: 32,871,140 km (0.048 R)
• M52: 33,133,684 km (0.089 R)
• M53: 33,221,199 km (0.109 R)
• M54: 33,396,827 km (0.116 R)
• M55: 33,484,641 km (0.09 R)
• M56: 34,101,882 km (0.118 R)
• M57: 34,990,194 km (0.09 R)
• M58: 36,246,666 km (0.117 R)
• M59: 37,153,080 km (0.097 R)
• M60: 40,103,449 km (0.072 R)
• M61: 41,890,545 km (0.072 R)
• M62: 43,319,654 km (0.118 R)
• M63: 43,799,564 km (0.095 R)
• M64: 44,861,559 km (0.093 R)
• M65: 45,055,588 km (0.101 R)
• M66: 46,912,546 km (0.102 R)
• M67: 47,999,075 km (0.119 R)
• M68: 48,296,775 km (0.051 R)
• M69: 50,599,834 km (0.053 R)
• M70: 52,019,069 km (0.111 R)
• M71: 52,324,997 km (0.11 R)
• M72: 52,427,023 km (0.117 R)
• M73: 54,275,753 km (0.075 R)
• M74: 56,564,152 km (0.054 R)
• M75: 58,036,644 km (0.115 R)
• M76: 58,248,025 km (0.07 R)
• M77: 58,671,686 km (0.099 R)
• M78: 59,415,338 km (0.104 R)
• M79: 59,841,691 km (0.084 R)
• M80: 60,055,317 km (0.116 R)
• M81: 61,234,448 km (0.093 R)
• M82: 62,637,825 km (0.064 R)
• M83: 63,397,782 km (0.098 R)
• M84: 65,476,146 km (0.097 R)
• M85: 66,137,069 km (0.092 R)
• M86: 67,132,643 km (0.12 R)
• M87: 67,354,646 km (0.118 R)
• M88: 69,250,650 km (0.098 R)
• M89: 71,503,743 km (0.102 R)
• M90: 74,124,399 km (0.087 R)
• M91: 74,468,474 km (0.119 R)
• M92: 74,813,147 km (0.09 R)
• M93: 75,158,419 km (0.113 R)
• M94: 76,544,443 km (0.086 R)
• M95: 77,473,147 km (0.088 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 513 - 18,218 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit