🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.75 AU - 3.85 AU

Year: 2258 Days

Day: 19.2 Hours

Environment

Temp: -118 °C

Axial Tilt: 17.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 102,692,738 km

• M1: 1,388,268 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.12 AU - 3.56 AU

Year: 2300 Days

Day: 34.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.5

Radius: 13.5

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.48 AU - 5.4 AU

Year: 3525 Days

Day: 9.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 102,692,738 km

• M1: 255,513 km (0.109 R)
• M2: 386,262 km (0.092 R)
• M3: 490,980 km (0.09 R)
• M4: 615,745 km (0.065 R)
• M5: 713,881 km (0.098 R)
• M6: 885,619 km (0.047 R)
• M7: 1,166,265 km (0.112 R)
• M8: 1,292,675 km (0.088 R)
• M9: 1,996,084 km (0.074 R)
• M10: 2,332,380 km (0.093 R)
• M11: 2,444,429 km (0.027 R)
• M12: 2,765,317 km (0.054 R)
• M13: 2,911,025 km (0.049 R)
• M14: 3,032,050 km (0.115 R)
• M15: 3,223,984 km (0.103 R)
• M16: 3,335,434 km (0.105 R)
• M17: 3,692,225 km (0.079 R)
• M18: 3,779,590 km (0.077 R)
• M19: 3,956,714 km (0.119 R)
• M20: 4,046,323 km (0.071 R)
• M21: 4,151,790 km (0.092 R)
• M22: 4,598,489 km (0.11 R)
• M23: 4,803,887 km (0.105 R)
• M24: 5,093,209 km (0.11 R)
• M25: 5,190,897 km (0.103 R)
• M26: 5,322,243 km (0.112 R)
• M27: 5,421,427 km (0.118 R)
• M28: 5,604,983 km (0.064 R)
• M29: 5,858,701 km (0.1 R)
• M30: 6,012,787 km (0.051 R)
• M31: 6,430,165 km (0.097 R)
• M32: 6,518,278 km (0.11 R)
• M33: 6,731,455 km (0.093 R)
• M34: 7,019,431 km (0.111 R)
• M35: 7,366,798 km (0.118 R)
• M36: 7,851,046 km (0.117 R)
• M37: 7,964,441 km (0.072 R)
• M38: 8,538,897 km (0.087 R)
• M39: 8,635,986 km (0.069 R)
• M40: 8,772,569 km (0.06 R)
• M41: 9,166,610 km (0.075 R)
• M42: 9,266,092 km (0.114 R)
• M43: 9,768,591 km (0.092 R)
• M44: 10,074,519 km (0.109 R)
• M45: 10,218,283 km (0.095 R)
• M46: 10,342,150 km (0.12 R)
• M47: 10,528,848 km (0.108 R)
• M48: 10,653,912 km (0.073 R)
• M49: 10,821,461 km (0.047 R)
• M50: 11,457,551 km (0.091 R)
• M51: 11,997,001 km (0.086 R)
• M52: 12,084,067 km (0.073 R)
• M53: 12,236,956 km (0.082 R)
• M54: 12,522,688 km (0.1 R)
• M55: 12,832,805 km (0.065 R)
• M56: 13,167,904 km (0.078 R)
• M57: 13,619,390 km (0.087 R)
• M58: 14,653,560 km (0.079 R)
• M59: 14,910,121 km (0.118 R)
• M60: 15,168,327 km (0.116 R)
• M61: 15,380,606 km (0.097 R)
• M62: 15,546,510 km (0.075 R)
• M63: 15,689,077 km (0.118 R)
• M64: 16,095,534 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.4

Radius: 12.2

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 8.2 AU - 8.96 AU

Year: 9468 Days

Day: 13.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (86)

Outer Limit: 102,692,738 km

• M1: 303,534 km (0.096 R)
• M2: 482,902 km (0.086 R)
• M3: 581,337 km (0.106 R)
• M4: 687,701 km (0.029 R)
• M5: 801,845 km (0.044 R)
• M6: 905,217 km (0.066 R)
• M7: 1,088,624 km (0.118 R)
• M8: 1,387,520 km (0.084 R)
• M9: 1,471,744 km (0.099 R)
• M10: 1,579,604 km (0.068 R)
• M11: 1,712,746 km (0.109 R)
• M12: 1,896,153 km (0.068 R)
• M13: 2,801,669 km (0.116 R)
• M14: 3,500,740 km (0.033 R)
• M15: 3,825,218 km (0.101 R)
• M16: 4,377,234 km (0.07 R)
• M17: 4,630,652 km (0.037 R)
• M18: 5,589,724 km (0.117 R)
• M19: 6,180,187 km (0.089 R)
• M20: 6,357,610 km (0.112 R)
• M21: 6,464,872 km (0.088 R)
• M22: 6,608,935 km (0.105 R)
• M23: 7,047,406 km (0.081 R)
• M24: 7,270,307 km (0.063 R)
• M25: 7,646,845 km (0.11 R)
• M26: 7,799,285 km (0.086 R)
• M27: 8,497,907 km (0.109 R)
• M28: 8,894,641 km (0.12 R)
• M29: 9,176,034 km (0.107 R)
• M30: 9,747,498 km (0.118 R)
• M31: 11,443,639 km (0.058 R)
• M32: 11,530,854 km (0.108 R)
• M33: 11,837,829 km (0.081 R)
• M34: 11,925,942 km (0.11 R)
• M35: 12,014,504 km (0.096 R)
• M36: 12,820,089 km (0.055 R)
• M37: 14,107,678 km (0.038 R)
• M38: 14,389,071 km (0.09 R)
• M39: 14,719,533 km (0.094 R)
• M40: 16,508,125 km (0.067 R)
• M41: 16,953,627 km (0.069 R)
• M42: 17,152,742 km (0.106 R)
• M43: 18,008,143 km (0.105 R)
• M44: 18,109,720 km (0.114 R)
• M45: 19,291,244 km (0.087 R)
• M46: 20,444,793 km (0.097 R)
• M47: 21,458,767 km (0.047 R)
• M48: 22,107,723 km (0.066 R)
• M49: 22,216,481 km (0.074 R)
• M50: 22,708,209 km (0.084 R)
• M51: 22,818,014 km (0.106 R)
• M52: 22,983,020 km (0.102 R)
• M53: 23,148,326 km (0.117 R)
• M54: 23,869,537 km (0.104 R)
• M55: 23,981,287 km (0.077 R)
• M56: 24,485,581 km (0.099 R)
• M57: 25,334,100 km (0.117 R)
• M58: 26,827,536 km (0.103 R)
• M59: 27,001,817 km (0.106 R)
• M60: 27,526,457 km (0.1 R)
• M61: 27,643,592 km (0.106 R)
• M62: 28,586,059 km (0.118 R)
• M63: 29,061,331 km (0.116 R)
• M64: 29,658,975 km (0.086 R)
• M65: 30,079,793 km (0.1 R)
• M66: 31,476,439 km (0.079 R)
• M67: 31,660,145 km (0.096 R)
• M68: 32,831,945 km (0.057 R)
• M69: 33,329,658 km (0.107 R)
• M70: 33,642,018 km (0.075 R)
• M71: 33,767,082 km (0.085 R)
• M72: 34,837,604 km (0.077 R)
• M73: 35,536,226 km (0.081 R)
• M74: 35,727,562 km (0.108 R)
• M75: 35,919,197 km (0.105 R)
• M76: 37,076,336 km (0.049 R)
• M77: 37,335,141 km (0.059 R)
• M78: 41,221,843 km (0.084 R)
• M79: 41,691,580 km (0.093 R)
• M80: 42,433,137 km (0.039 R)
• M81: 42,839,445 km (0.117 R)
• M82: 43,043,047 km (0.03 R)
• M83: 44,134,663 km (0.106 R)
• M84: 44,959,396 km (0.062 R)
• M85: 45,373,633 km (0.101 R)
• M86: 46,136,283 km (0.05 R)

Asteroid Belt

Center: 9.58 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.7

Radius: 11.1

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 9.37 AU - 11.77 AU

Year: 12946 Days

Day: 13.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 102,692,738 km

• M1: 157,377 km (0.073 R)
• M2: 322,832 km (0.063 R)
• M3: 562,338 km (0.118 R)
• M4: 660,624 km (0.108 R)
• M5: 892,800 km (0.096 R)
• M6: 993,330 km (0.096 R)
• M7: 1,636,601 km (0.075 R)
• M8: 1,847,534 km (0.109 R)
• M9: 2,226,615 km (0.095 R)
• M10: 2,929,126 km (0.027 R)
• M11: 3,005,571 km (0.07 R)
• M12: 3,186,734 km (0.078 R)
• M13: 3,398,116 km (0.091 R)
• M14: 3,559,831 km (0.119 R)
• M15: 4,202,952 km (0.106 R)
• M16: 4,912,495 km (0.1 R)
• M17: 5,095,752 km (0.03 R)
• M18: 5,500,564 km (0.117 R)
• M19: 5,786,894 km (0.097 R)
• M20: 6,275,182 km (0.084 R)
• M21: 6,374,365 km (0.04 R)
• M22: 7,395,520 km (0.096 R)
• M23: 7,465,383 km (0.041 R)
• M24: 8,248,827 km (0.081 R)
• M25: 8,503,592 km (0.095 R)
• M26: 8,872,051 km (0.06 R)
• M27: 9,510,535 km (0.094 R)
• M28: 10,047,591 km (0.083 R)
• M29: 10,633,865 km (0.112 R)
• M30: 10,791,990 km (0.075 R)
• M31: 11,030,898 km (0.101 R)
• M32: 12,292,457 km (0.1 R)
• M33: 12,458,511 km (0.099 R)
• M34: 12,919,272 km (0.053 R)
• M35: 13,257,812 km (0.058 R)
• M36: 13,642,279 km (0.12 R)
• M37: 14,116,953 km (0.056 R)
• M38: 14,247,402 km (0.108 R)
• M39: 14,334,618 km (0.09 R)
• M40: 14,597,311 km (0.11 R)
• M41: 14,905,633 km (0.086 R)
• M42: 15,171,767 km (0.046 R)
• M43: 15,484,128 km (0.114 R)
• M44: 15,663,645 km (0.059 R)
• M45: 16,709,185 km (0.082 R)
• M46: 16,801,038 km (0.101 R)
• M47: 18,675,798 km (0.081 R)
• M48: 18,866,984 km (0.103 R)
• M49: 19,686,332 km (0.101 R)
• M50: 20,271,858 km (0.084 R)
• M51: 21,110,952 km (0.095 R)
• M52: 22,163,373 km (0.085 R)
• M53: 22,517,920 km (0.109 R)
• M54: 22,874,262 km (0.038 R)
• M55: 23,335,323 km (0.091 R)
• M56: 23,489,708 km (0.05 R)
• M57: 24,266,570 km (0.118 R)
• M58: 24,894,282 km (0.063 R)
• M59: 25,262,742 km (0.089 R)
• M60: 25,368,508 km (0.065 R)
• M61: 27,240,875 km (0.077 R)
• M62: 28,660,409 km (0.09 R)
• M63: 29,157,373 km (0.046 R)
• M64: 30,048,079 km (0.069 R)
• M65: 31,117,255 km (0.056 R)
• M66: 31,400,593 km (0.112 R)
• M67: 32,428,031 km (0.06 R)
• M68: 32,945,939 km (0.093 R)
• M69: 33,640,672 km (0.119 R)
• M70: 34,515,819 km (0.107 R)
• M71: 35,457,687 km (0.085 R)
• M72: 35,991,153 km (0.083 R)
• M73: 36,169,624 km (0.092 R)
• M74: 37,366,706 km (0.085 R)
• M75: 37,728,284 km (0.029 R)
• M76: 38,272,970 km (0.098 R)
• M77: 38,759,163 km (0.099 R)
• M78: 40,168,674 km (0.04 R)
• M79: 40,353,876 km (0.09 R)
• M80: 40,601,012 km (0.076 R)
• M81: 41,470,325 km (0.105 R)
• M82: 41,782,236 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.7

Radius: 8.5

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 9.5 AU - 13.5 AU

Year: 14692 Days

Day: 14 Hours

Environment

Temp: -175 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 102,692,738 km

• M1: 131,347 km (0.109 R)
• M2: 250,427 km (0.106 R)
• M3: 1,402,929 km (0.105 R)
• M4: 2,606,145 km (0.099 R)
• M5: 3,315,238 km (0.095 R)
• M6: 3,477,103 km (0.096 R)
• M7: 3,741,443 km (0.045 R)
• M8: 4,046,622 km (0.118 R)
• M9: 4,395,185 km (0.094 R)
• M10: 4,789,974 km (0.076 R)
• M11: 6,601,305 km (0.118 R)
• M12: 6,723,527 km (0.037 R)
• M13: 7,642,207 km (0.106 R)
• M14: 8,203,498 km (0.105 R)
• M15: 8,291,163 km (0.103 R)
• M16: 9,093,007 km (0.069 R)
• M17: 10,200,181 km (0.093 R)
• M18: 11,447,229 km (0.12 R)
• M19: 13,303,290 km (0.101 R)
• M20: 13,716,778 km (0.055 R)
• M21: 14,239,473 km (0.076 R)
• M22: 14,344,940 km (0.1 R)
• M23: 14,450,556 km (0.109 R)
• M24: 14,822,157 km (0.119 R)
• M25: 15,250,755 km (0.116 R)
• M26: 15,629,238 km (0.116 R)
• M27: 16,395,179 km (0.112 R)
• M28: 16,450,380 km (0.106 R)
• M29: 16,505,731 km (0.086 R)
• M30: 17,229,486 km (0.108 R)
• M31: 17,454,332 km (0.097 R)
• M32: 17,567,128 km (0.103 R)
• M33: 17,736,772 km (0.108 R)
• M34: 17,963,712 km (0.047 R)
• M35: 18,134,703 km (0.117 R)
• M36: 18,939,240 km (0.105 R)
• M37: 20,227,128 km (0.087 R)
• M38: 20,286,369 km (0.102 R)
• M39: 21,061,286 km (0.067 R)
• M40: 21,121,275 km (0.036 R)
• M41: 21,241,551 km (0.116 R)
• M42: 21,482,553 km (0.026 R)
• M43: 22,089,322 km (0.111 R)
• M44: 22,150,209 km (0.099 R)
• M45: 22,640,142 km (0.062 R)
• M46: 23,319,615 km (0.073 R)
• M47: 23,630,629 km (0.073 R)
• M48: 23,942,990 km (0.102 R)
• M49: 24,698,309 km (0.116 R)
• M50: 25,142,615 km (0.069 R)
• M51: 25,206,344 km (0.032 R)
• M52: 26,556,016 km (0.116 R)
• M53: 26,750,642 km (0.088 R)
• M54: 26,880,793 km (0.097 R)
• M55: 27,599,910 km (0.107 R)
• M56: 28,790,409 km (0.119 R)
• M57: 29,660,620 km (0.099 R)
• M58: 30,403,822 km (0.071 R)
• M59: 31,426,922 km (0.112 R)
• M60: 32,253,600 km (0.045 R)
• M61: 32,600,069 km (0.113 R)
• M62: 33,857,888 km (0.115 R)
• M63: 33,928,199 km (0.049 R)
• M64: 33,998,510 km (0.104 R)
• M65: 34,421,872 km (0.099 R)
• M66: 34,705,210 km (0.116 R)
• M67: 35,488,056 km (0.097 R)
• M68: 35,630,922 km (0.117 R)
• M69: 35,774,087 km (0.075 R)
• M70: 36,348,543 km (0.115 R)
• M71: 39,710,904 km (0.056 R)
• M72: 40,231,056 km (0.109 R)
• M73: 40,903,349 km (0.11 R)
• M74: 40,978,298 km (0.054 R)
• M75: 41,654,779 km (0.094 R)
• M76: 42,410,548 km (0.118 R)
• M77: 42,942,368 km (0.062 R)
• M78: 43,018,513 km (0.118 R)
• M79: 43,399,988 km (0.079 R)
• M80: 43,476,432 km (0.113 R)
• M81: 43,552,877 km (0.118 R)
• M82: 44,551,143 km (0.119 R)
• M83: 45,091,641 km (0.094 R)
• M84: 45,945,545 km (0.078 R)
• M85: 47,906,025 km (0.117 R)
• M86: 48,222,275 km (0.118 R)
• M87: 48,936,306 km (0.119 R)
• M88: 51,341,540 km (0.093 R)
• M89: 52,395,607 km (0.118 R)
• M90: 52,639,900 km (0.107 R)
• M91: 52,721,431 km (0.109 R)
• M92: 53,293,194 km (0.08 R)
• M93: 54,690,289 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 766.9

Radius: 3.9

Gravity: 50.42 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 15.4 AU - 21.32 AU

Year: 29637 Days

Day: 19 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 102,692,738 km

• M1: 84,822 km (0.062 R)
• M2: 151,094 km (0.069 R)
• M3: 503,846 km (0.044 R)
• M4: 808,876 km (0.089 R)
• M5: 1,127,968 km (0.12 R)
• M6: 1,594,863 km (0.069 R)
• M7: 2,637,261 km (0.054 R)
• M8: 2,866,146 km (0.114 R)
• M9: 3,101,613 km (0.12 R)
• M10: 3,793,204 km (0.119 R)
• M11: 3,999,349 km (0.091 R)
• M12: 4,103,769 km (0.047 R)
• M13: 4,315,300 km (0.073 R)
• M14: 4,584,726 km (0.091 R)
• M15: 5,774,627 km (0.112 R)
• M16: 6,803,412 km (0.118 R)
• M17: 7,692,023 km (0.036 R)
• M18: 7,822,024 km (0.071 R)
• M19: 8,482,349 km (0.074 R)
• M20: 8,887,161 km (0.085 R)
• M21: 9,229,291 km (0.048 R)
• M22: 9,298,256 km (0.079 R)
• M23: 9,575,760 km (0.086 R)
• M24: 10,640,298 km (0.053 R)
• M25: 11,816,437 km (0.12 R)
• M26: 12,956,073 km (0.087 R)
• M27: 13,421,622 km (0.117 R)
• M28: 14,130,267 km (0.053 R)
• M29: 14,850,880 km (0.093 R)
• M30: 15,337,970 km (0.091 R)
• M31: 15,912,875 km (0.088 R)
• M32: 17,083,628 km (0.1 R)
• M33: 21,484,797 km (0.102 R)
• M34: 22,404,675 km (0.115 R)
• M35: 24,760,093 km (0.105 R)
• M36: 26,308,282 km (0.105 R)
• M37: 26,798,514 km (0.096 R)
• M38: 27,987,368 km (0.111 R)
• M39: 28,387,393 km (0.087 R)
• M40: 29,294,554 km (0.076 R)
• M41: 29,904,465 km (0.043 R)
• M42: 30,006,491 km (0.075 R)
• M43: 30,518,714 km (0.077 R)
• M44: 30,724,261 km (0.084 R)
• M45: 30,827,334 km (0.096 R)
• M46: 31,759,478 km (0.078 R)
• M47: 32,176,707 km (0.082 R)
• M48: 35,904,087 km (0.107 R)
• M49: 36,121,154 km (0.058 R)
• M50: 36,338,669 km (0.091 R)
• M51: 36,665,840 km (0.102 R)
• M52: 36,775,046 km (0.106 R)
• M53: 37,432,828 km (0.116 R)
• M54: 37,653,036 km (0.06 R)
• M55: 37,873,543 km (0.114 R)
• M56: 38,760,060 km (0.036 R)
• M57: 39,205,862 km (0.111 R)
• M58: 40,553,440 km (0.102 R)
• M59: 41,232,913 km (0.113 R)
• M60: 42,259,155 km (0.102 R)
• M61: 42,948,053 km (0.077 R)
• M62: 43,756,330 km (0.057 R)
• M63: 44,104,295 km (0.038 R)
• M64: 48,830,540 km (0.057 R)
• M65: 50,400,869 km (0.066 R)
• M66: 51,253,278 km (0.076 R)
• M67: 52,848,889 km (0.081 R)
• M68: 53,714,761 km (0.06 R)
• M69: 54,211,725 km (0.12 R)
• M70: 57,098,366 km (0.06 R)
• M71: 57,859,520 km (0.056 R)
• M72: 57,986,827 km (0.045 R)
• M73: 58,624,114 km (0.11 R)
• M74: 61,845,705 km (0.104 R)
• M75: 64,859,952 km (0.063 R)
• M76: 67,519,503 km (0.085 R)
• M77: 68,190,001 km (0.1 R)
• M78: 70,350,194 km (0.044 R)
• M79: 70,486,029 km (0.109 R)
• M80: 71,029,967 km (0.094 R)
• M81: 71,848,417 km (0.086 R)
• M82: 71,985,149 km (0.105 R)
• M83: 72,258,764 km (0.073 R)
• M84: 74,737,600 km (0.047 R)
• M85: 75,709,089 km (0.084 R)
• M86: 77,664,632 km (0.077 R)
• M87: 78,226,372 km (0.1 R)
• M88: 83,917,524 km (0.067 R)
• M89: 86,812,692 km (0.036 R)
• M90: 86,958,400 km (0.114 R)
• M91: 90,330,037 km (0.099 R)
• M92: 90,920,649 km (0.117 R)
• M93: 94,042,906 km (0.099 R)
• M94: 97,956,985 km (0.12 R)
• M95: 100,544,729 km (0.101 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 19,247 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit