🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.42 AU - 0.68 AU

Year: 259 Days

Day: 20.6 Hours

Environment

Temp: -114 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 90,566,106 km

• M1: 341,083 km (0.118 R)
• M2: 398,230 km (0.097 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.51 AU - 0.61 AU

Year: 266 Days

Day: 32.7 Hours

Environment

Temp: -113 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.1

Radius: 9

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.66 AU - 1 AU

Year: 481 Days

Day: 11.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 90,566,106 km

• M1: 112,049 km (0.075 R)
• M2: 188,045 km (0.05 R)
• M3: 283,189 km (0.056 R)
• M4: 388,954 km (0.117 R)
• M5: 470,934 km (0.064 R)
• M6: 540,198 km (0.108 R)
• M7: 642,822 km (0.107 R)
• M8: 758,760 km (0.078 R)
• M9: 842,386 km (0.109 R)
• M10: 922,420 km (0.069 R)
• M11: 991,235 km (0.07 R)
• M12: 1,047,783 km (0.104 R)
• M13: 1,119,890 km (0.09 R)
• M14: 1,220,120 km (0.115 R)
• M15: 1,315,564 km (0.084 R)
• M16: 1,397,843 km (0.111 R)
• M17: 1,518,568 km (0.103 R)
• M18: 1,617,602 km (0.09 R)
• M19: 1,770,341 km (0.104 R)
• M20: 1,826,740 km (0.081 R)
• M21: 1,914,703 km (0.07 R)
• M22: 2,053,829 km (0.119 R)
• M23: 2,122,345 km (0.093 R)
• M24: 2,205,671 km (0.101 R)
• M25: 2,304,256 km (0.071 R)
• M26: 2,366,040 km (0.09 R)
• M27: 2,462,231 km (0.037 R)
• M28: 2,520,575 km (0.117 R)
• M29: 2,643,694 km (0.114 R)
• M30: 2,738,539 km (0.105 R)
• M31: 2,819,471 km (0.095 R)
• M32: 3,035,490 km (0.079 R)
• M33: 3,108,644 km (0.06 R)
• M34: 3,166,538 km (0.095 R)
• M35: 3,224,881 km (0.108 R)
• M36: 3,299,680 km (0.107 R)
• M37: 3,402,005 km (0.09 R)
• M38: 3,549,359 km (0.104 R)
• M39: 3,654,377 km (0.089 R)
• M40: 3,765,977 km (0.099 R)
• M41: 3,833,445 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.4

Radius: 12.2

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.88 AU - 0.96 AU

Year: 561 Days

Day: 11 Hours

Environment

Temp: -161 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 90,566,106 km

• M1: 152,141 km (0.12 R)
• M2: 244,742 km (0.098 R)
• M3: 325,675 km (0.106 R)
• M4: 606,171 km (0.102 R)
• M5: 700,417 km (0.115 R)
• M6: 823,087 km (0.119 R)
• M7: 1,051,972 km (0.1 R)
• M8: 1,172,847 km (0.117 R)
• M9: 1,389,016 km (0.08 R)
• M10: 1,473,539 km (0.108 R)
• M11: 1,593,367 km (0.066 R)
• M12: 1,669,512 km (0.033 R)
• M13: 1,807,890 km (0.044 R)
• M14: 2,157,201 km (0.116 R)
• M15: 2,458,940 km (0.08 R)
• M16: 2,592,531 km (0.036 R)
• M17: 2,790,000 km (0.045 R)
• M18: 2,971,313 km (0.066 R)
• M19: 3,066,308 km (0.119 R)
• M20: 3,151,429 km (0.109 R)
• M21: 3,302,523 km (0.068 R)
• M22: 3,965,540 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29

Radius: 12

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.57 AU - 2.03 AU

Year: 1535 Days

Day: 13.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 90,566,106 km

• M1: 149,448 km (0.119 R)
• M2: 235,168 km (0.091 R)
• M3: 347,067 km (0.101 R)
• M4: 446,250 km (0.119 R)
• M5: 598,990 km (0.096 R)
• M6: 712,086 km (0.084 R)
• M7: 800,349 km (0.065 R)
• M8: 885,320 km (0.115 R)
• M9: 1,057,208 km (0.084 R)
• M10: 1,262,307 km (0.03 R)
• M11: 1,340,995 km (0.111 R)
• M12: 1,673,402 km (0.119 R)
• M13: 1,965,417 km (0.084 R)
• M14: 2,436,949 km (0.091 R)
• M15: 2,514,291 km (0.065 R)
• M16: 2,734,499 km (0.099 R)
• M17: 2,920,001 km (0.1 R)
• M18: 3,038,034 km (0.102 R)
• M19: 3,340,221 km (0.084 R)
• M20: 3,664,998 km (0.085 R)
• M21: 4,026,277 km (0.089 R)
• M22: 4,338,488 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.4

Radius: 12.1

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.73 AU - 2.43 AU

Year: 1907 Days

Day: 6.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (47)

Outer Limit: 90,566,106 km

• M1: 304,132 km (0.086 R)
• M2: 427,850 km (0.082 R)
• M3: 550,819 km (0.112 R)
• M4: 725,849 km (0.075 R)
• M5: 879,037 km (0.085 R)
• M6: 970,741 km (0.057 R)
• M7: 1,314,965 km (0.115 R)
• M8: 1,463,516 km (0.072 R)
• M9: 1,679,535 km (0.081 R)
• M10: 1,859,950 km (0.096 R)
• M11: 2,028,098 km (0.101 R)
• M12: 2,104,393 km (0.045 R)
• M13: 2,289,745 km (0.065 R)
• M14: 2,718,941 km (0.074 R)
• M15: 2,867,791 km (0.11 R)
• M16: 3,184,639 km (0.108 R)
• M17: 3,364,456 km (0.106 R)
• M18: 4,190,386 km (0.081 R)
• M19: 4,325,772 km (0.119 R)
• M20: 4,500,203 km (0.114 R)
• M21: 4,664,312 km (0.067 R)
• M22: 4,791,919 km (0.102 R)
• M23: 4,907,857 km (0.05 R)
• M24: 5,116,247 km (0.098 R)
• M25: 5,786,146 km (0.083 R)
• M26: 5,923,477 km (0.082 R)
• M27: 6,075,768 km (0.117 R)
• M28: 6,257,529 km (0.041 R)
• M29: 6,356,114 km (0.087 R)
• M30: 6,626,438 km (0.046 R)
• M31: 6,856,968 km (0.049 R)
• M32: 7,061,019 km (0.033 R)
• M33: 7,178,454 km (0.091 R)
• M34: 7,927,341 km (0.076 R)
• M35: 8,218,458 km (0.032 R)
• M36: 8,497,608 km (0.09 R)
• M37: 8,685,353 km (0.065 R)
• M38: 8,779,749 km (0.116 R)
• M39: 9,144,918 km (0.057 R)
• M40: 9,661,330 km (0.062 R)
• M41: 9,808,235 km (0.108 R)
• M42: 10,253,588 km (0.085 R)
• M43: 10,570,885 km (0.106 R)
• M44: 10,772,991 km (0.041 R)
• M45: 11,112,728 km (0.103 R)
• M46: 11,542,373 km (0.093 R)
• M47: 11,663,697 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185

Radius: 5.9

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 5.23 AU - 7.17 AU

Year: 9816 Days

Day: 19.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 90,566,106 km

• M1: 74,350 km (0.061 R)
• M2: 159,771 km (0.096 R)
• M3: 299,495 km (0.101 R)
• M4: 404,513 km (0.098 R)
• M5: 445,802 km (0.114 R)
• M6: 626,665 km (0.095 R)
• M7: 816,655 km (0.103 R)
• M8: 897,587 km (0.106 R)
• M9: 1,126,921 km (0.113 R)
• M10: 1,374,206 km (0.114 R)
• M11: 1,422,526 km (0.086 R)
• M12: 1,554,172 km (0.089 R)
• M13: 1,918,293 km (0.108 R)
• M14: 2,063,852 km (0.101 R)
• M15: 2,175,452 km (0.106 R)
• M16: 2,232,150 km (0.074 R)
• M17: 2,581,760 km (0.067 R)
• M18: 2,824,408 km (0.103 R)
• M19: 3,011,256 km (0.053 R)
• M20: 3,506,873 km (0.062 R)
• M21: 3,798,140 km (0.117 R)
• M22: 3,889,395 km (0.031 R)
• M23: 3,981,398 km (0.119 R)
• M24: 4,050,811 km (0.076 R)
• M25: 4,499,904 km (0.078 R)
• M26: 4,548,074 km (0.043 R)
• M27: 4,742,701 km (0.095 R)
• M28: 5,089,619 km (0.111 R)
• M29: 5,992,592 km (0.108 R)
• M30: 6,313,479 km (0.039 R)
• M31: 6,367,484 km (0.095 R)
• M32: 6,448,865 km (0.098 R)
• M33: 6,503,319 km (0.096 R)
• M34: 7,168,132 km (0.114 R)
• M35: 7,309,352 km (0.061 R)
• M36: 7,394,473 km (0.048 R)
• M37: 7,537,190 km (0.106 R)
• M38: 7,767,421 km (0.058 R)
• M39: 8,146,502 km (0.113 R)
• M40: 8,205,443 km (0.076 R)
• M41: 8,353,096 km (0.103 R)
• M42: 9,044,238 km (0.105 R)
• M43: 9,597,751 km (0.064 R)
• M44: 9,784,748 km (0.059 R)
• M45: 10,193,898 km (0.095 R)
• M46: 10,705,224 km (0.085 R)
• M47: 11,290,301 km (0.1 R)
• M48: 11,653,076 km (0.1 R)
• M49: 11,919,210 km (0.09 R)
• M50: 12,356,036 km (0.025 R)
• M51: 12,695,623 km (0.073 R)
• M52: 13,003,945 km (0.064 R)
• M53: 13,908,264 km (0.049 R)
• M54: 14,439,186 km (0.05 R)
• M55: 14,617,657 km (0.12 R)
• M56: 15,048,947 km (0.089 R)
• M57: 15,740,389 km (0.086 R)
• M58: 15,960,896 km (0.084 R)
• M59: 16,553,752 km (0.096 R)
• M60: 17,608,717 km (0.063 R)
• M61: 17,837,601 km (0.072 R)
• M62: 18,067,533 km (0.057 R)
• M63: 18,375,555 km (0.057 R)
• M64: 19,114,120 km (0.101 R)
• M65: 19,546,009 km (0.063 R)
• M66: 19,624,997 km (0.092 R)
• M67: 19,664,491 km (0.104 R)
• M68: 19,703,984 km (0.082 R)
• M69: 20,140,361 km (0.062 R)
• M70: 20,299,833 km (0.058 R)
• M71: 22,245,951 km (0.077 R)
• M72: 22,452,097 km (0.12 R)
• M73: 23,534,139 km (0.108 R)
• M74: 23,660,100 km (0.106 R)
• M75: 24,208,376 km (0.063 R)
• M76: 24,931,832 km (0.063 R)
• M77: 25,274,710 km (0.082 R)
• M78: 25,532,766 km (0.114 R)
• M79: 26,182,171 km (0.099 R)
• M80: 26,312,620 km (0.113 R)
• M81: 26,880,643 km (0.118 R)
• M82: 27,541,118 km (0.114 R)
• M83: 27,851,084 km (0.093 R)
• M84: 29,917,031 km (0.111 R)
• M85: 30,509,887 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 580.9

Radius: 7.5

Gravity: 10.33 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 5.19 AU - 7.49 AU

Year: 10150 Days

Day: 16.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 53.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 90,566,106 km

• M1: 120,127 km (0.061 R)
• M2: 203,752 km (0.046 R)
• M3: 379,979 km (0.114 R)
• M4: 432,039 km (0.114 R)
• M5: 589,266 km (0.081 R)
• M6: 1,013,825 km (0.104 R)
• M7: 1,127,968 km (0.103 R)
• M8: 1,539,362 km (0.048 R)
• M9: 2,018,075 km (0.054 R)
• M10: 2,114,267 km (0.06 R)
• M11: 2,311,287 km (0.063 R)
• M12: 2,386,834 km (0.09 R)
• M13: 2,749,908 km (0.088 R)
• M14: 3,102,660 km (0.064 R)
• M15: 3,298,633 km (0.098 R)
• M16: 3,469,773 km (0.087 R)
• M17: 3,527,518 km (0.091 R)
• M18: 3,643,905 km (0.054 R)
• M19: 3,910,488 km (0.06 R)
• M20: 4,091,801 km (0.103 R)
• M21: 4,244,989 km (0.079 R)
• M22: 4,337,740 km (0.088 R)
• M23: 4,525,485 km (0.108 R)
• M24: 5,469,897 km (0.082 R)
• M25: 5,571,025 km (0.066 R)
• M26: 5,775,226 km (0.106 R)
• M27: 6,225,964 km (0.03 R)
• M28: 6,652,019 km (0.095 R)
• M29: 6,723,975 km (0.118 R)
• M30: 6,796,231 km (0.114 R)
• M31: 6,904,989 km (0.04 R)
• M32: 7,014,345 km (0.096 R)
• M33: 7,308,903 km (0.107 R)
• M34: 7,682,599 km (0.12 R)
• M35: 8,526,929 km (0.102 R)
• M36: 8,920,371 km (0.118 R)
• M37: 9,319,648 km (0.057 R)
• M38: 9,400,281 km (0.081 R)
• M39: 10,426,972 km (0.115 R)
• M40: 10,636,558 km (0.11 R)
• M41: 11,060,070 km (0.091 R)
• M42: 12,318,786 km (0.098 R)
• M43: 13,258,410 km (0.087 R)
• M44: 14,360,348 km (0.06 R)
• M45: 14,875,115 km (0.076 R)
• M46: 15,348,293 km (0.078 R)
• M47: 15,396,014 km (0.12 R)
• M48: 15,586,901 km (0.118 R)
• M49: 16,019,239 km (0.101 R)
• M50: 16,115,879 km (0.102 R)
• M51: 16,748,529 km (0.104 R)
• M52: 16,944,951 km (0.079 R)
• M53: 17,988,097 km (0.101 R)
• M54: 18,138,891 km (0.119 R)
• M55: 19,772,500 km (0.102 R)
• M56: 19,824,411 km (0.118 R)
• M57: 21,559,297 km (0.073 R)
• M58: 21,772,923 km (0.119 R)
• M59: 21,933,591 km (0.034 R)
• M60: 22,094,558 km (0.08 R)
• M61: 23,069,188 km (0.084 R)
• M62: 24,557,089 km (0.114 R)
• M63: 25,622,674 km (0.079 R)
• M64: 25,735,770 km (0.091 R)
• M65: 25,962,411 km (0.032 R)
• M66: 26,246,498 km (0.112 R)
• M67: 26,360,491 km (0.092 R)
• M68: 26,646,074 km (0.096 R)
• M69: 26,760,666 km (0.082 R)
• M70: 26,932,703 km (0.082 R)
• M71: 27,162,785 km (0.087 R)
• M72: 27,220,380 km (0.108 R)
• M73: 27,973,156 km (0.032 R)
• M74: 28,439,752 km (0.115 R)
• M75: 28,556,738 km (0.105 R)
• M76: 28,615,380 km (0.087 R)
• M77: 28,732,665 km (0.05 R)
• M78: 29,144,508 km (0.074 R)
• M79: 29,203,449 km (0.099 R)
• M80: 31,838,017 km (0.107 R)
• M81: 34,609,916 km (0.079 R)
• M82: 34,922,725 km (0.118 R)
• M83: 35,362,094 km (0.105 R)
• M84: 35,551,036 km (0.117 R)
• M85: 35,614,017 km (0.116 R)
• M86: 35,929,818 km (0.084 R)
• M87: 39,594,218 km (0.097 R)
• M88: 39,855,865 km (0.081 R)
• M89: 44,322,109 km (0.063 R)
• M90: 45,617,178 km (0.066 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 914.9

Radius: 7.3

Gravity: 17.17 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 8.1 AU - 13.44 AU

Year: 22473 Days

Day: 21.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 90,566,106 km

• M1: 122,820 km (0.069 R)
• M2: 633,098 km (0.084 R)
• M3: 841,937 km (0.117 R)
• M4: 1,072,168 km (0.083 R)
• M5: 1,194,689 km (0.065 R)
• M6: 1,321,996 km (0.057 R)
• M7: 1,624,782 km (0.038 R)
• M8: 2,533,590 km (0.089 R)
• M9: 2,781,922 km (0.067 R)
• M10: 2,994,949 km (0.119 R)
• M11: 3,346,654 km (0.119 R)
• M12: 4,137,279 km (0.048 R)
• M13: 4,282,688 km (0.108 R)
• M14: 4,479,259 km (0.068 R)
• M15: 5,558,608 km (0.036 R)
• M16: 5,611,865 km (0.12 R)
• M17: 5,990,048 km (0.11 R)
• M18: 6,885,392 km (0.093 R)
• M19: 7,000,133 km (0.104 R)
• M20: 7,173,667 km (0.087 R)
• M21: 7,290,054 km (0.119 R)
• M22: 9,876,003 km (0.061 R)
• M23: 10,005,554 km (0.075 R)
• M24: 10,135,705 km (0.1 R)
• M25: 10,332,127 km (0.071 R)
• M26: 11,332,338 km (0.057 R)
• M27: 12,854,646 km (0.036 R)
• M28: 13,352,358 km (0.106 R)
• M29: 13,928,908 km (0.088 R)
• M30: 14,147,321 km (0.095 R)
• M31: 15,330,640 km (0.083 R)
• M32: 15,631,332 km (0.108 R)
• M33: 15,934,118 km (0.099 R)
• M34: 16,622,418 km (0.095 R)
• M35: 17,790,927 km (0.08 R)
• M36: 19,066,249 km (0.119 R)
• M37: 19,878,266 km (0.114 R)
• M38: 20,370,892 km (0.086 R)
• M39: 21,033,909 km (0.112 R)
• M40: 21,452,035 km (0.071 R)
• M41: 22,893,710 km (0.092 R)
• M42: 23,065,299 km (0.117 R)
• M43: 23,237,336 km (0.065 R)
• M44: 23,843,058 km (0.065 R)
• M45: 24,366,352 km (0.112 R)
• M46: 26,227,648 km (0.108 R)
• M47: 26,317,407 km (0.063 R)
• M48: 27,859,013 km (0.113 R)
• M49: 28,779,339 km (0.08 R)
• M50: 29,150,342 km (0.063 R)
• M51: 29,522,990 km (0.056 R)
• M52: 30,461,268 km (0.095 R)
• M53: 31,028,842 km (0.038 R)
• M54: 31,313,976 km (0.104 R)
• M55: 32,174,612 km (0.084 R)
• M56: 33,139,968 km (0.072 R)
• M57: 33,919,223 km (0.069 R)
• M58: 34,605,877 km (0.028 R)
• M59: 36,292,593 km (0.058 R)
• M60: 36,592,986 km (0.089 R)
• M61: 37,196,314 km (0.067 R)
• M62: 37,499,249 km (0.109 R)
• M63: 38,310,968 km (0.103 R)
• M64: 40,884,799 km (0.104 R)
• M65: 41,406,147 km (0.064 R)
• M66: 46,631,451 km (0.108 R)
• M67: 46,849,116 km (0.072 R)
• M68: 47,394,700 km (0.105 R)
• M69: 48,933,613 km (0.105 R)
• M70: 49,265,421 km (0.068 R)
• M71: 49,820,280 km (0.105 R)
• M72: 52,625,240 km (0.074 R)
• M73: 53,078,671 km (0.113 R)
• M74: 53,989,722 km (0.101 R)
• M75: 55,020,750 km (0.119 R)
• M76: 55,135,642 km (0.073 R)
• M77: 56,521,367 km (0.116 R)
• M78: 61,938,306 km (0.093 R)
• M79: 63,619,636 km (0.116 R)
• M80: 65,194,154 km (0.098 R)
• M81: 66,414,124 km (0.098 R)
• M82: 68,134,500 km (0.088 R)
• M83: 72,373,505 km (0.081 R)
• M84: 73,256,880 km (0.112 R)
• M85: 73,383,291 km (0.049 R)
• M86: 77,597,612 km (0.082 R)
• M87: 77,984,622 km (0.082 R)
• M88: 78,890,138 km (0.056 R)
• M89: 80,319,994 km (0.099 R)
• M90: 80,580,893 km (0.101 R)
• M91: 82,020,922 km (0.116 R)
• M92: 87,731,222 km (0.076 R)
• M93: 88,403,366 km (0.118 R)
• M94: 90,023,810 km (0.085 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 377 - 13,536 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit