🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.51 AU - 0.55 AU

Year: 140 Days

Day: 31.6 Hours

Environment

Temp: 168 °C

Axial Tilt: 27.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 105,096,410 km

• M1: 292,314 km (0.062 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.62 AU - 0.84 AU

Year: 227 Days

Day: 25.2 Hours

Environment

Temp: 113 °C

Axial Tilt: 11.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.03 AU - 1.25 AU

Year: 442 Days

Day: 47 Hours

Environment

Temp: 30 °C

Axial Tilt: 27.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.68

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.18 AU - 1.4 AU

Year: 532 Days

Day: 25.2 Hours

Environment

Temp: 0 °C

Axial Tilt: 44.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.94 AU - 2.74 AU

Year: 1301 Days

Day: 33.8 Hours

Environment

Temp: -89 °C

Axial Tilt: 14.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 105,096,410 km

• M1: 887,564 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.7

Radius: 14.4

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 5.28 AU - 6.96 AU

Year: 5502 Days

Day: 14.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 105,096,410 km

• M1: 211,531 km (0.118 R)
• M2: 331,509 km (0.086 R)
• M3: 505,192 km (0.111 R)
• M4: 598,541 km (0.105 R)
• M5: 963,709 km (0.109 R)
• M6: 1,246,150 km (0.107 R)
• M7: 2,153,910 km (0.117 R)
• M8: 2,299,319 km (0.094 R)
• M9: 2,448,319 km (0.101 R)
• M10: 2,641,749 km (0.089 R)
• M11: 2,777,135 km (0.034 R)
• M12: 3,011,555 km (0.079 R)
• M13: 3,557,437 km (0.066 R)
• M14: 4,452,930 km (0.093 R)
• M15: 5,035,764 km (0.072 R)
• M16: 5,468,999 km (0.06 R)
• M17: 5,886,975 km (0.106 R)
• M18: 6,385,585 km (0.116 R)
• M19: 6,725,621 km (0.083 R)
• M20: 6,999,086 km (0.118 R)
• M21: 7,159,156 km (0.112 R)
• M22: 7,394,024 km (0.081 R)
• M23: 7,886,650 km (0.063 R)
• M24: 8,083,820 km (0.095 R)
• M25: 8,841,234 km (0.118 R)
• M26: 9,236,472 km (0.044 R)
• M27: 9,428,256 km (0.114 R)
• M28: 9,864,633 km (0.103 R)
• M29: 10,390,470 km (0.102 R)
• M30: 10,606,788 km (0.093 R)
• M31: 11,641,407 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.7

Radius: 14.6

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.72 AU - 6.74 AU

Year: 5651 Days

Day: 11 Hours

Environment

Temp: -147 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 105,096,410 km

• M1: 203,154 km (0.118 R)
• M2: 382,821 km (0.063 R)
• M3: 657,034 km (0.062 R)
• M4: 864,227 km (0.092 R)
• M5: 1,000,062 km (0.09 R)
• M6: 1,243,906 km (0.05 R)
• M7: 1,694,645 km (0.117 R)
• M8: 1,889,272 km (0.119 R)
• M9: 2,030,193 km (0.049 R)
• M10: 2,301,563 km (0.084 R)
• M11: 2,629,631 km (0.105 R)
• M12: 3,043,419 km (0.069 R)
• M13: 3,380,014 km (0.099 R)
• M14: 3,478,300 km (0.102 R)
• M15: 4,247,233 km (0.116 R)
• M16: 4,816,603 km (0.071 R)
• M17: 5,068,077 km (0.094 R)
• M18: 5,526,145 km (0.119 R)
• M19: 6,087,287 km (0.105 R)
• M20: 6,574,228 km (0.115 R)
• M21: 6,729,062 km (0.111 R)
• M22: 7,232,608 km (0.12 R)
• M23: 7,585,958 km (0.08 R)
• M24: 7,879,170 km (0.065 R)
• M25: 8,544,582 km (0.026 R)
• M26: 8,747,586 km (0.071 R)
• M27: 9,297,208 km (0.074 R)
• M28: 9,893,506 km (0.059 R)
• M29: 10,142,736 km (0.052 R)
• M30: 10,250,147 km (0.117 R)
• M31: 10,939,344 km (0.103 R)
• M32: 11,123,200 km (0.064 R)
• M33: 11,308,253 km (0.038 R)
• M34: 11,568,852 km (0.055 R)
• M35: 11,681,200 km (0.036 R)
• M36: 11,831,396 km (0.068 R)
• M37: 12,324,471 km (0.057 R)
• M38: 12,631,296 km (0.101 R)
• M39: 13,724,707 km (0.06 R)
• M40: 14,042,752 km (0.091 R)
• M41: 14,484,066 km (0.047 R)
• M42: 15,960,148 km (0.113 R)
• M43: 16,970,682 km (0.1 R)
• M44: 17,312,064 km (0.093 R)
• M45: 17,785,392 km (0.055 R)
• M46: 18,219,375 km (0.082 R)
• M47: 18,437,638 km (0.05 R)
• M48: 19,097,664 km (0.107 R)
• M49: 20,260,189 km (0.12 R)
• M50: 21,078,340 km (0.102 R)
• M51: 21,170,043 km (0.093 R)
• M52: 21,722,359 km (0.048 R)
• M53: 22,512,834 km (0.046 R)
• M54: 23,076,668 km (0.114 R)
• M55: 23,692,563 km (0.063 R)
• M56: 23,978,743 km (0.115 R)
• M57: 24,074,337 km (0.094 R)
• M58: 24,218,100 km (0.067 R)
• M59: 24,313,992 km (0.101 R)
• M60: 25,183,306 km (0.067 R)
• M61: 25,426,552 km (0.059 R)
• M62: 25,817,451 km (0.115 R)
• M63: 26,308,880 km (0.118 R)
• M64: 26,654,750 km (0.097 R)
• M65: 27,450,910 km (0.082 R)
• M66: 27,851,982 km (0.116 R)
• M67: 28,761,387 km (0.065 R)
• M68: 30,092,060 km (0.083 R)
• M69: 30,505,549 km (0.103 R)
• M70: 30,661,131 km (0.082 R)
• M71: 31,442,780 km (0.099 R)
• M72: 31,757,384 km (0.052 R)
• M73: 33,025,974 km (0.104 R)
• M74: 34,634,899 km (0.057 R)
• M75: 35,013,980 km (0.098 R)
• M76: 35,449,011 km (0.1 R)
• M77: 36,324,308 km (0.081 R)
• M78: 37,040,732 km (0.094 R)

Asteroid Belt

Center: 8.6 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 10.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.7

Radius: 9.5

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 8.44 AU - 13.5 AU

Year: 13205 Days

Day: 7.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 105,096,410 km

• M1: 151,094 km (0.05 R)
• M2: 367,861 km (0.058 R)
• M3: 1,320,500 km (0.09 R)
• M4: 1,512,734 km (0.029 R)
• M5: 1,662,930 km (0.102 R)
• M6: 2,486,765 km (0.118 R)
• M7: 2,786,410 km (0.053 R)
• M8: 2,878,562 km (0.075 R)
• M9: 3,003,028 km (0.111 R)
• M10: 3,420,107 km (0.058 R)
• M11: 3,855,586 km (0.055 R)
• M12: 4,559,743 km (0.11 R)
• M13: 5,227,099 km (0.103 R)
• M14: 5,303,245 km (0.074 R)
• M15: 5,417,986 km (0.06 R)
• M16: 5,495,029 km (0.116 R)
• M17: 5,572,371 km (0.069 R)
• M18: 5,885,479 km (0.064 R)
• M19: 6,164,180 km (0.042 R)
• M20: 7,364,554 km (0.035 R)
• M21: 7,535,694 km (0.061 R)
• M22: 7,664,946 km (0.114 R)
• M23: 7,794,947 km (0.097 R)
• M24: 8,411,290 km (0.113 R)
• M25: 8,906,459 km (0.112 R)
• M26: 9,411,202 km (0.118 R)
• M27: 10,352,621 km (0.102 R)
• M28: 10,592,726 km (0.08 R)
• M29: 10,689,217 km (0.029 R)
• M30: 10,786,156 km (0.044 R)
• M31: 11,820,476 km (0.118 R)
• M32: 12,021,086 km (0.108 R)
• M33: 12,273,458 km (0.112 R)
• M34: 13,561,346 km (0.034 R)
• M35: 13,718,723 km (0.1 R)
• M36: 13,982,464 km (0.107 R)
• M37: 14,194,744 km (0.078 R)
• M38: 14,568,589 km (0.048 R)
• M39: 15,271,699 km (0.108 R)
• M40: 15,875,326 km (0.044 R)
• M41: 15,985,879 km (0.036 R)
• M42: 16,486,583 km (0.037 R)
• M43: 16,710,830 km (0.107 R)
• M44: 16,823,328 km (0.076 R)
• M45: 16,936,125 km (0.056 R)
• M46: 17,105,619 km (0.075 R)
• M47: 17,674,988 km (0.099 R)
• M48: 18,540,711 km (0.077 R)
• M49: 20,014,101 km (0.114 R)
• M50: 20,073,940 km (0.11 R)
• M51: 20,795,151 km (0.047 R)
• M52: 21,831,416 km (0.09 R)
• M53: 23,637,660 km (0.055 R)
• M54: 24,526,720 km (0.054 R)
• M55: 26,599,698 km (0.092 R)
• M56: 26,665,372 km (0.104 R)
• M57: 27,391,520 km (0.11 R)
• M58: 28,124,100 km (0.107 R)
• M59: 29,268,973 km (0.064 R)
• M60: 32,723,487 km (0.042 R)
• M61: 34,069,569 km (0.104 R)
• M62: 34,140,927 km (0.083 R)
• M63: 34,641,781 km (0.113 R)
• M64: 36,377,415 km (0.112 R)
• M65: 37,182,401 km (0.085 R)
• M66: 37,476,511 km (0.114 R)
• M67: 39,407,370 km (0.025 R)
• M68: 39,857,510 km (0.081 R)
• M69: 40,158,501 km (0.088 R)
• M70: 40,384,843 km (0.08 R)
• M71: 41,522,684 km (0.079 R)
• M72: 42,133,791 km (0.085 R)
• M73: 42,517,211 km (0.057 R)
• M74: 43,674,500 km (0.109 R)
• M75: 43,752,141 km (0.113 R)
• M76: 44,842,261 km (0.044 R)
• M77: 45,469,226 km (0.072 R)
• M78: 46,731,832 km (0.112 R)
• M79: 47,926,071 km (0.113 R)
• M80: 48,005,957 km (0.078 R)
• M81: 50,181,858 km (0.12 R)
• M82: 53,298,430 km (0.088 R)
• M83: 53,464,185 km (0.117 R)
• M84: 54,963,604 km (0.086 R)
• M85: 55,802,699 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 780.8

Radius: 4

Gravity: 48.8 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 13.22 AU - 15.94 AU

Year: 20233 Days

Day: 16.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (98)

Outer Limit: 105,096,410 km

• M1: 56,847 km (0.083 R)
• M2: 142,118 km (0.103 R)
• M3: 551,567 km (0.116 R)
• M4: 619,485 km (0.106 R)
• M5: 1,693,897 km (0.083 R)
• M6: 1,963,921 km (0.112 R)
• M7: 2,468,066 km (0.057 R)
• M8: 2,657,457 km (0.119 R)
• M9: 2,890,829 km (0.05 R)
• M10: 2,930,473 km (0.087 R)
• M11: 3,130,934 km (0.106 R)
• M12: 4,287,924 km (0.113 R)
• M13: 4,982,058 km (0.056 R)
• M14: 5,220,966 km (0.065 R)
• M15: 6,316,321 km (0.1 R)
• M16: 6,574,976 km (0.107 R)
• M17: 7,371,285 km (0.115 R)
• M18: 7,918,814 km (0.092 R)
• M19: 8,366,411 km (0.082 R)
• M20: 8,707,344 km (0.078 R)
• M21: 9,227,197 km (0.104 R)
• M22: 9,344,182 km (0.111 R)
• M23: 9,995,980 km (0.099 R)
• M24: 10,784,959 km (0.051 R)
• M25: 11,031,646 km (0.094 R)
• M26: 13,269,032 km (0.093 R)
• M27: 15,501,481 km (0.097 R)
• M28: 16,412,382 km (0.109 R)
• M29: 16,838,587 km (0.109 R)
• M30: 16,981,453 km (0.116 R)
• M31: 17,268,381 km (0.117 R)
• M32: 17,774,471 km (0.114 R)
• M33: 19,546,159 km (0.107 R)
• M34: 20,149,038 km (0.117 R)
• M35: 20,911,389 km (0.115 R)
• M36: 21,141,919 km (0.075 R)
• M37: 21,296,005 km (0.081 R)
• M38: 21,760,656 km (0.114 R)
• M39: 22,385,377 km (0.115 R)
• M40: 23,652,471 km (0.096 R)
• M41: 24,699,057 km (0.089 R)
• M42: 25,514,366 km (0.086 R)
• M43: 25,925,311 km (0.087 R)
• M44: 26,421,228 km (0.116 R)
• M45: 28,097,023 km (0.103 R)
• M46: 28,266,518 km (0.089 R)
• M47: 28,436,311 km (0.094 R)
• M48: 29,634,441 km (0.052 R)
• M49: 30,066,330 km (0.108 R)
• M50: 31,286,749 km (0.102 R)
• M51: 31,462,377 km (0.051 R)
• M52: 31,638,304 km (0.072 R)
• M53: 31,991,355 km (0.049 R)
• M54: 32,879,368 km (0.118 R)
• M55: 34,861,390 km (0.069 R)
• M56: 35,317,215 km (0.1 R)
• M57: 37,719,308 km (0.055 R)
• M58: 38,751,234 km (0.039 R)
• M59: 40,078,167 km (0.116 R)
• M60: 40,173,461 km (0.07 R)
• M61: 40,364,348 km (0.057 R)
• M62: 40,459,941 km (0.076 R)
• M63: 40,938,953 km (0.039 R)
• M64: 41,227,228 km (0.051 R)
• M65: 42,387,061 km (0.075 R)
• M66: 43,264,003 km (0.077 R)
• M67: 45,432,724 km (0.114 R)
• M68: 46,230,080 km (0.107 R)
• M69: 46,530,323 km (0.091 R)
• M70: 47,737,578 km (0.098 R)
• M71: 49,465,434 km (0.111 R)
• M72: 49,567,609 km (0.116 R)
• M73: 49,977,507 km (0.108 R)
• M74: 51,420,528 km (0.08 R)
• M75: 51,835,363 km (0.108 R)
• M76: 52,251,395 km (0.095 R)
• M77: 52,772,893 km (0.057 R)
• M78: 53,610,791 km (0.113 R)
• M79: 53,926,143 km (0.071 R)
• M80: 57,006,513 km (0.11 R)
• M81: 60,689,762 km (0.113 R)
• M82: 63,335,550 km (0.074 R)
• M83: 63,669,003 km (0.106 R)
• M84: 63,891,455 km (0.069 R)
• M85: 64,449,156 km (0.103 R)
• M86: 65,456,848 km (0.099 R)
• M87: 67,828,273 km (0.095 R)
• M88: 68,169,356 km (0.07 R)
• M89: 68,967,311 km (0.056 R)
• M90: 69,653,816 km (0.101 R)
• M91: 69,997,891 km (0.071 R)
• M92: 71,495,515 km (0.068 R)
• M93: 72,654,749 km (0.063 R)
• M94: 73,937,102 km (0.11 R)
• M95: 75,344,369 km (0.095 R)
• M96: 76,051,369 km (0.029 R)
• M97: 77,828,442 km (0.079 R)
• M98: 78,066,452 km (0.07 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 768.7

Radius: 4.6

Gravity: 36.33 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 16.23 AU - 22.23 AU

Year: 30648 Days

Day: 17.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 105,096,410 km

• M1: 423,661 km (0.111 R)
• M2: 549,323 km (0.096 R)
• M3: 897,587 km (0.113 R)
• M4: 961,316 km (0.115 R)
• M5: 1,161,777 km (0.079 R)
• M6: 1,196,484 km (0.085 R)
• M7: 1,797,867 km (0.106 R)
• M8: 3,378,818 km (0.077 R)
• M9: 3,994,263 km (0.115 R)
• M10: 4,047,221 km (0.077 R)
• M11: 4,478,362 km (0.063 R)
• M12: 5,442,071 km (0.097 R)
• M13: 5,559,506 km (0.093 R)
• M14: 6,220,579 km (0.084 R)
• M15: 7,484,830 km (0.064 R)
• M16: 9,806,739 km (0.115 R)
• M17: 10,093,368 km (0.045 R)
• M18: 10,310,285 km (0.066 R)
• M19: 12,330,156 km (0.062 R)
• M20: 12,639,524 km (0.116 R)
• M21: 14,063,097 km (0.111 R)
• M22: 14,143,731 km (0.09 R)
• M23: 14,630,373 km (0.078 R)
• M24: 15,204,978 km (0.115 R)
• M25: 15,370,583 km (0.075 R)
• M26: 15,536,786 km (0.094 R)
• M27: 16,376,329 km (0.057 R)
• M28: 16,887,206 km (0.043 R)
• M29: 18,804,602 km (0.11 R)
• M30: 20,881,469 km (0.116 R)
• M31: 22,180,876 km (0.089 R)
• M32: 24,856,883 km (0.098 R)
• M33: 26,034,667 km (0.1 R)
• M34: 28,138,911 km (0.107 R)
• M35: 29,882,025 km (0.061 R)
• M36: 33,471,327 km (0.093 R)
• M37: 35,206,961 km (0.091 R)
• M38: 36,195,953 km (0.071 R)
• M39: 37,194,219 km (0.067 R)
• M40: 39,558,165 km (0.08 R)
• M41: 39,785,853 km (0.096 R)
• M42: 42,435,231 km (0.095 R)
• M43: 44,193,455 km (0.08 R)
• M44: 44,311,488 km (0.099 R)
• M45: 44,429,670 km (0.108 R)
• M46: 45,975,465 km (0.111 R)
• M47: 46,334,649 km (0.077 R)
• M48: 48,753,048 km (0.1 R)
• M49: 51,088,271 km (0.108 R)
• M50: 51,833,119 km (0.074 R)
• M51: 52,706,920 km (0.077 R)
• M52: 53,082,710 km (0.077 R)
• M53: 55,356,897 km (0.085 R)
• M54: 56,121,940 km (0.069 R)
• M55: 56,634,014 km (0.091 R)
• M56: 56,890,574 km (0.112 R)
• M57: 58,827,268 km (0.062 R)
• M58: 60,523,110 km (0.098 R)
• M59: 63,296,355 km (0.112 R)
• M60: 65,033,785 km (0.07 R)
• M61: 66,245,677 km (0.119 R)
• M62: 67,465,049 km (0.12 R)
• M63: 70,201,344 km (0.046 R)
• M64: 70,339,124 km (0.102 R)
• M65: 71,305,975 km (0.099 R)
• M66: 72,416,290 km (0.112 R)
• M67: 75,217,211 km (0.115 R)
• M68: 76,347,423 km (0.108 R)
• M69: 78,624,602 km (0.1 R)
• M70: 80,635,347 km (0.082 R)
• M71: 80,924,071 km (0.114 R)
• M72: 81,647,077 km (0.057 R)
• M73: 82,517,737 km (0.101 R)
• M74: 85,588,682 km (0.059 R)
• M75: 85,735,886 km (0.109 R)
• M76: 87,360,369 km (0.071 R)
• M77: 89,144,025 km (0.102 R)
• M78: 90,789,601 km (0.094 R)
• M79: 91,691,377 km (0.115 R)
• M80: 92,596,145 km (0.088 R)
• M81: 93,200,969 km (0.07 R)
• M82: 93,352,362 km (0.108 R)
• M83: 95,175,811 km (0.06 R)
• M84: 95,786,170 km (0.096 R)
• M85: 97,778,814 km (0.094 R)
• M86: 98,240,622 km (0.111 R)
• M87: 99,166,484 km (0.111 R)
• M88: 99,630,387 km (0.061 R)
• M89: 100,095,038 km (0.047 R)
• M90: 101,649,210 km (0.064 R)
• M91: 102,741,873 km (0.112 R)
• M92: 103,211,461 km (0.095 R)
• M93: 103,368,090 km (0.113 R)

Kuiper Belt

Range: 30.2 - 53.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 511 - 11,297 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit