🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.1

Radius: 9.6

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.54 AU - 0.78 AU

Year: 364 Days

Day: 12.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 26,275,104 km

• M1: 129,253 km (0.106 R)
• M2: 214,075 km (0.055 R)
• M3: 351,555 km (0.092 R)
• M4: 562,937 km (0.107 R)
• M5: 674,537 km (0.103 R)
• M6: 760,406 km (0.091 R)
• M7: 842,236 km (0.059 R)
• M8: 904,918 km (0.112 R)
• M9: 977,921 km (0.1 R)
• M10: 1,047,335 km (0.027 R)
• M11: 1,112,260 km (0.108 R)
• M12: 1,262,456 km (0.087 R)
• M13: 1,357,750 km (0.105 R)
• M14: 1,422,676 km (0.104 R)
• M15: 1,512,135 km (0.089 R)
• M16: 1,579,604 km (0.079 R)
• M17: 1,651,560 km (0.033 R)
• M18: 1,724,714 km (0.067 R)
• M19: 1,806,095 km (0.101 R)
• M20: 1,874,461 km (0.115 R)
• M21: 1,969,306 km (0.109 R)
• M22: 2,077,017 km (0.057 R)
• M23: 2,205,821 km (0.076 R)
• M24: 2,400,298 km (0.086 R)
• M25: 2,467,766 km (0.052 R)
• M26: 2,596,421 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.6

Radius: 14.1

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.57 AU - 0.89 AU

Year: 423 Days

Day: 11.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 26,275,104 km

• M1: 177,573 km (0.089 R)
• M2: 321,187 km (0.113 R)
• M3: 441,613 km (0.091 R)
• M4: 580,141 km (0.096 R)
• M5: 682,765 km (0.099 R)
• M6: 775,366 km (0.111 R)
• M7: 1,033,272 km (0.064 R)
• M8: 1,142,778 km (0.088 R)
• M9: 1,235,529 km (0.099 R)
• M10: 1,347,278 km (0.088 R)
• M11: 1,462,618 km (0.109 R)
• M12: 1,598,902 km (0.091 R)
• M13: 1,692,102 km (0.032 R)
• M14: 1,903,035 km (0.065 R)
• M15: 2,122,943 km (0.073 R)
• M16: 2,219,883 km (0.072 R)
• M17: 2,404,786 km (0.105 R)
• M18: 2,547,053 km (0.071 R)
• M19: 2,657,307 km (0.056 R)
• M20: 2,818,723 km (0.065 R)
• M21: 2,940,346 km (0.099 R)
• M22: 3,070,945 km (0.111 R)
• M23: 3,159,058 km (0.106 R)
• M24: 3,263,029 km (0.061 R)
• M25: 3,451,672 km (0.112 R)
• M26: 3,644,055 km (0.07 R)
• M27: 3,753,261 km (0.096 R)
• M28: 3,903,457 km (0.092 R)
• M29: 4,136,531 km (0.09 R)
• M30: 4,226,140 km (0.03 R)
• M31: 4,399,075 km (0.096 R)
• M32: 4,498,857 km (0.077 R)
• M33: 4,692,586 km (0.116 R)
• M34: 4,794,761 km (0.028 R)
• M35: 5,009,883 km (0.108 R)
• M36: 5,334,361 km (0.103 R)
• M37: 5,441,174 km (0.096 R)
• M38: 5,620,691 km (0.088 R)
• M39: 5,765,652 km (0.089 R)
• M40: 6,283,260 km (0.077 R)
• M41: 6,415,056 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.2

Radius: 9.1

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.81 AU - 0.83 AU

Year: 504 Days

Day: 7.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 26,275,104 km

• M1: 123,119 km (0.065 R)
• M2: 189,241 km (0.08 R)
• M3: 295,605 km (0.094 R)
• M4: 386,112 km (0.088 R)
• M5: 477,816 km (0.099 R)
• M6: 535,710 km (0.11 R)
• M7: 640,578 km (0.088 R)
• M8: 764,894 km (0.059 R)
• M9: 838,646 km (0.092 R)
• M10: 902,075 km (0.077 R)
• M11: 1,016,218 km (0.082 R)
• M12: 1,191,846 km (0.057 R)
• M13: 1,357,750 km (0.119 R)
• M14: 1,479,373 km (0.117 R)
• M15: 1,546,842 km (0.054 R)
• M16: 1,604,736 km (0.083 R)
• M17: 1,755,681 km (0.1 R)
• M18: 1,985,164 km (0.052 R)
• M19: 2,071,631 km (0.118 R)
• M20: 2,182,932 km (0.077 R)
• M21: 2,308,445 km (0.091 R)
• M22: 2,375,016 km (0.115 R)
• M23: 2,692,762 km (0.079 R)
• M24: 2,801,669 km (0.097 R)
• M25: 3,063,914 km (0.094 R)
• M26: 3,204,686 km (0.095 R)
• M27: 3,555,792 km (0.12 R)
• M28: 3,647,346 km (0.074 R)
• M29: 3,746,679 km (0.057 R)
• M30: 3,825,517 km (0.088 R)
• M31: 3,941,006 km (0.074 R)
• M32: 4,013,860 km (0.106 R)
• M33: 4,094,494 km (0.114 R)
• M34: 4,175,576 km (0.111 R)
• M35: 4,287,176 km (0.036 R)
• M36: 4,384,714 km (0.104 R)
• M37: 4,574,254 km (0.107 R)
• M38: 4,643,219 km (0.051 R)
• M39: 4,852,057 km (0.1 R)
• M40: 4,946,005 km (0.086 R)
• M41: 5,008,836 km (0.051 R)
• M42: 5,087,824 km (0.049 R)
• M43: 5,231,138 km (0.109 R)
• M44: 5,311,323 km (0.103 R)
• M45: 5,440,426 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.2

Radius: 11.6

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.87 AU - 0.91 AU

Year: 569 Days

Day: 10.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 26,275,104 km

• M1: 145,409 km (0.104 R)
• M2: 233,073 km (0.118 R)
• M3: 340,634 km (0.088 R)
• M4: 422,913 km (0.059 R)
• M5: 518,357 km (0.099 R)
• M6: 593,604 km (0.096 R)
• M7: 699,520 km (0.098 R)
• M8: 903,272 km (0.096 R)
• M9: 1,007,691 km (0.066 R)
• M10: 1,090,120 km (0.057 R)
• M11: 1,397,992 km (0.049 R)
• M12: 1,497,026 km (0.044 R)
• M13: 1,580,502 km (0.081 R)
• M14: 1,696,290 km (0.114 R)
• M15: 1,802,355 km (0.092 R)
• M16: 1,962,724 km (0.1 R)
• M17: 2,101,102 km (0.115 R)
• M18: 2,175,003 km (0.092 R)
• M19: 2,353,025 km (0.05 R)
• M20: 2,465,074 km (0.111 R)
• M21: 2,607,790 km (0.034 R)
• M22: 2,709,367 km (0.118 R)
• M23: 3,014,397 km (0.072 R)
• M24: 3,090,542 km (0.051 R)
• M25: 3,393,777 km (0.083 R)
• M26: 3,480,993 km (0.067 R)
• M27: 3,577,035 km (0.103 R)
• M28: 3,846,012 km (0.094 R)
• M29: 3,937,117 km (0.086 R)
• M30: 4,020,592 km (0.048 R)
• M31: 4,130,098 km (0.041 R)
• M32: 4,308,867 km (0.117 R)
• M33: 4,386,359 km (0.052 R)
• M34: 4,499,156 km (0.063 R)
• M35: 4,861,033 km (0.12 R)
• M36: 5,223,359 km (0.085 R)
• M37: 5,379,988 km (0.11 R)
• M38: 5,510,138 km (0.108 R)
• M39: 5,613,211 km (0.071 R)
• M40: 5,974,191 km (0.117 R)
• M41: 6,176,896 km (0.091 R)
• M42: 6,342,651 km (0.098 R)
• M43: 6,510,051 km (0.102 R)
• M44: 6,619,107 km (0.1 R)
• M45: 6,839,016 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.9

Radius: 12.3

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.35 AU - 2.01 AU

Year: 1477 Days

Day: 14 Hours

Environment

Temp: -191 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 26,275,104 km

• M1: 155,133 km (0.104 R)
• M2: 244,144 km (0.083 R)
• M3: 338,241 km (0.104 R)
• M4: 531,521 km (0.104 R)
• M5: 682,017 km (0.118 R)
• M6: 1,023,399 km (0.109 R)
• M7: 1,423,873 km (0.102 R)
• M8: 1,592,021 km (0.05 R)
• M9: 1,774,380 km (0.116 R)
• M10: 1,910,066 km (0.102 R)
• M11: 2,002,517 km (0.028 R)
• M12: 2,104,393 km (0.098 R)
• M13: 2,216,292 km (0.1 R)
• M14: 2,305,453 km (0.108 R)
• M15: 2,479,435 km (0.057 R)
• M16: 2,674,960 km (0.082 R)
• M17: 2,831,738 km (0.116 R)
• M18: 3,090,692 km (0.107 R)
• M19: 3,181,797 km (0.097 R)
• M20: 3,708,980 km (0.116 R)
• M21: 3,796,345 km (0.067 R)
• M22: 3,963,147 km (0.067 R)
• M23: 4,062,480 km (0.091 R)
• M24: 4,263,689 km (0.118 R)
• M25: 4,478,362 km (0.108 R)
• M26: 4,613,150 km (0.11 R)
• M27: 4,717,868 km (0.119 R)
• M28: 4,950,792 km (0.111 R)
• M29: 5,329,275 km (0.065 R)
• M30: 5,417,238 km (0.09 R)
• M31: 5,605,582 km (0.119 R)
• M32: 5,717,331 km (0.079 R)
• M33: 5,829,829 km (0.038 R)
• M34: 6,057,218 km (0.099 R)
• M35: 6,218,185 km (0.051 R)
• M36: 6,380,499 km (0.071 R)
• M37: 6,603,100 km (0.089 R)
• M38: 6,721,283 km (0.088 R)
• M39: 6,912,020 km (0.081 R)
• M40: 7,213,460 km (0.119 R)
• M41: 7,298,581 km (0.07 R)
• M42: 7,494,554 km (0.087 R)
• M43: 7,605,556 km (0.117 R)
• M44: 7,766,972 km (0.058 R)
• M45: 7,916,869 km (0.079 R)
• M46: 8,055,247 km (0.036 R)
• M47: 8,168,941 km (0.077 R)
• M48: 8,642,269 km (0.101 R)
• M49: 8,797,701 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103

Radius: 12.1

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.41 AU - 3.29 AU

Year: 3263 Days

Day: 7.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 26,275,104 km

• M1: 151,543 km (0.086 R)
• M2: 242,349 km (0.096 R)
• M3: 339,138 km (0.076 R)
• M4: 420,520 km (0.081 R)
• M5: 499,806 km (0.108 R)
• M6: 603,627 km (0.056 R)
• M7: 722,707 km (0.084 R)
• M8: 802,443 km (0.094 R)
• M9: 878,588 km (0.08 R)
• M10: 1,170,005 km (0.082 R)
• M11: 1,492,388 km (0.116 R)
• M12: 1,732,194 km (0.111 R)
• M13: 1,965,716 km (0.096 R)
• M14: 2,130,573 km (0.06 R)
• M15: 2,239,779 km (0.116 R)
• M16: 2,422,588 km (0.11 R)
• M17: 2,781,473 km (0.116 R)
• M18: 3,146,193 km (0.077 R)
• M19: 3,248,368 km (0.091 R)
• M20: 3,467,828 km (0.094 R)
• M21: 3,573,444 km (0.084 R)
• M22: 3,897,174 km (0.034 R)
• M23: 3,994,862 km (0.036 R)
• M24: 4,167,946 km (0.077 R)
• M25: 4,305,576 km (0.114 R)
• M26: 4,650,250 km (0.115 R)
• M27: 4,780,101 km (0.084 R)
• M28: 4,911,298 km (0.049 R)
• M29: 5,163,819 km (0.116 R)
• M30: 5,406,916 km (0.041 R)
• M31: 5,488,895 km (0.1 R)
• M32: 5,598,700 km (0.053 R)
• M33: 5,709,403 km (0.035 R)
• M34: 5,834,766 km (0.059 R)
• M35: 6,159,244 km (0.115 R)
• M36: 6,664,436 km (0.116 R)
• M37: 7,078,223 km (0.064 R)
• M38: 7,198,051 km (0.095 R)
• M39: 7,273,299 km (0.105 R)
• M40: 7,576,683 km (0.051 R)
• M41: 8,180,610 km (0.04 R)
• M42: 8,322,130 km (0.098 R)
• M43: 8,575,848 km (0.116 R)
• M44: 8,719,611 km (0.059 R)
• M45: 8,896,585 km (0.031 R)
• M46: 9,025,988 km (0.115 R)
• M47: 9,123,525 km (0.091 R)
• M48: 9,500,362 km (0.052 R)
• M49: 9,748,994 km (0.091 R)
• M50: 9,899,190 km (0.037 R)
• M51: 9,999,720 km (0.119 R)
• M52: 10,184,922 km (0.112 R)
• M53: 10,320,458 km (0.117 R)
• M54: 10,422,334 km (0.065 R)
• M55: 10,507,605 km (0.11 R)
• M56: 10,920,046 km (0.117 R)
• M57: 11,215,352 km (0.036 R)
• M58: 12,027,818 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.7

Radius: 9.8

Gravity: 8.53 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.98 AU - 3.5 AU

Year: 3956 Days

Day: 11.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 26,275,104 km

• M1: 145,110 km (0.094 R)
• M2: 356,791 km (0.11 R)
• M3: 474,076 km (0.059 R)
• M4: 584,778 km (0.115 R)
• M5: 660,325 km (0.112 R)
• M6: 798,404 km (0.053 R)
• M7: 985,102 km (0.093 R)
• M8: 1,064,090 km (0.086 R)
• M9: 1,242,560 km (0.103 R)
• M10: 1,328,429 km (0.086 R)
• M11: 1,460,973 km (0.105 R)
• M12: 1,707,809 km (0.108 R)
• M13: 1,804,001 km (0.104 R)
• M14: 1,918,443 km (0.07 R)
• M15: 2,189,365 km (0.05 R)
• M16: 2,347,191 km (0.112 R)
• M17: 2,454,602 km (0.102 R)
• M18: 2,563,659 km (0.093 R)
• M19: 2,692,911 km (0.078 R)
• M20: 2,805,558 km (0.119 R)
• M21: 3,016,043 km (0.056 R)
• M22: 3,534,399 km (0.096 R)
• M23: 3,824,918 km (0.074 R)
• M24: 3,994,562 km (0.093 R)
• M25: 4,473,724 km (0.106 R)
• M26: 4,788,329 km (0.092 R)
• M27: 5,320,598 km (0.111 R)
• M28: 5,920,635 km (0.069 R)
• M29: 5,994,087 km (0.099 R)
• M30: 6,241,074 km (0.069 R)
• M31: 6,516,782 km (0.045 R)
• M32: 6,976,497 km (0.081 R)
• M33: 7,054,138 km (0.093 R)
• M34: 7,288,857 km (0.106 R)
• M35: 8,335,444 km (0.035 R)
• M36: 8,666,803 km (0.088 R)
• M37: 8,946,401 km (0.095 R)
• M38: 9,257,266 km (0.094 R)
• M39: 9,342,686 km (0.111 R)
• M40: 9,457,129 km (0.089 R)
• M41: 9,773,827 km (0.088 R)
• M42: 9,860,744 km (0.078 R)
• M43: 10,006,452 km (0.053 R)
• M44: 10,358,755 km (0.034 R)
• M45: 10,685,178 km (0.077 R)
• M46: 10,774,936 km (0.062 R)
• M47: 11,257,240 km (0.111 R)
• M48: 11,378,863 km (0.076 R)
• M49: 11,531,602 km (0.119 R)
• M50: 12,087,209 km (0.089 R)
• M51: 12,430,985 km (0.103 R)
• M52: 12,936,775 km (0.042 R)
• M53: 13,032,368 km (0.065 R)
• M54: 13,449,297 km (0.041 R)
• M55: 13,805,639 km (0.06 R)
• M56: 14,593,571 km (0.034 R)
• M57: 15,565,359 km (0.098 R)
• M58: 15,735,003 km (0.092 R)
• M59: 18,066,785 km (0.066 R)
• M60: 20,097,128 km (0.093 R)
• M61: 20,171,029 km (0.117 R)
• M62: 20,541,583 km (0.05 R)
• M63: 20,690,433 km (0.093 R)
• M64: 21,666,858 km (0.067 R)
• M65: 22,084,535 km (0.073 R)
• M66: 22,275,123 km (0.104 R)
• M67: 22,466,459 km (0.029 R)
• M68: 22,658,243 km (0.098 R)
• M69: 22,966,265 km (0.101 R)
• M70: 23,586,498 km (0.038 R)
• M71: 24,606,007 km (0.12 R)
• M72: 24,724,489 km (0.101 R)
• M73: 25,001,993 km (0.104 R)
• M74: 26,162,124 km (0.105 R)
• M75: 26,769,043 km (0.11 R)
• M76: 27,094,718 km (0.04 R)
• M77: 27,217,238 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.9

Radius: 13.6

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.99 AU - 4.77 AU

Year: 5184 Days

Day: 11 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 26,275,104 km

• M1: 184,454 km (0.116 R)
• M2: 325,675 km (0.074 R)
• M3: 524,341 km (0.101 R)
• M4: 771,027 km (0.104 R)
• M5: 1,082,789 km (0.103 R)
• M6: 1,350,719 km (0.103 R)
• M7: 1,435,392 km (0.09 R)
• M8: 1,934,749 km (0.103 R)
• M9: 2,129,675 km (0.085 R)
• M10: 2,539,274 km (0.081 R)
• M11: 2,663,440 km (0.08 R)
• M12: 2,918,206 km (0.104 R)
• M13: 3,086,354 km (0.085 R)
• M14: 3,296,239 km (0.073 R)
• M15: 3,393,329 km (0.037 R)
• M16: 4,016,404 km (0.096 R)
• M17: 4,120,225 km (0.101 R)
• M18: 4,225,093 km (0.101 R)
• M19: 4,394,587 km (0.107 R)
• M20: 5,005,994 km (0.115 R)
• M21: 5,163,071 km (0.093 R)
• M22: 5,276,317 km (0.039 R)
• M23: 5,997,079 km (0.108 R)
• M24: 6,308,542 km (0.05 R)
• M25: 6,478,485 km (0.063 R)
• M26: 6,674,608 km (0.1 R)
• M27: 6,947,624 km (0.094 R)
• M28: 7,123,252 km (0.103 R)
• M29: 7,249,513 km (0.117 R)
• M30: 7,351,239 km (0.094 R)
• M31: 7,710,723 km (0.103 R)
• M32: 7,892,634 km (0.096 R)
• M33: 8,207,837 km (0.11 R)
• M34: 8,959,566 km (0.093 R)
• M35: 9,260,856 km (0.072 R)
• M36: 9,398,935 km (0.109 R)
• M37: 9,705,311 km (0.118 R)
• M38: 10,014,829 km (0.051 R)
• M39: 10,128,225 km (0.09 R)
• M40: 10,585,994 km (0.101 R)
• M41: 10,875,616 km (0.047 R)
• M42: 11,670,728 km (0.077 R)
• M43: 11,820,027 km (0.104 R)
• M44: 12,362,768 km (0.115 R)
• M45: 13,504,050 km (0.097 R)
• M46: 13,944,766 km (0.12 R)
• M47: 14,262,362 km (0.091 R)
• M48: 14,711,155 km (0.092 R)
• M49: 15,622,506 km (0.088 R)
• M50: 15,853,186 km (0.117 R)
• M51: 16,018,790 km (0.089 R)
• M52: 16,351,496 km (0.042 R)
• M53: 16,451,727 km (0.091 R)
• M54: 16,686,446 km (0.113 R)
• M55: 17,125,515 km (0.097 R)
• M56: 17,670,949 km (0.102 R)
• M57: 17,945,910 km (0.109 R)
• M58: 18,674,153 km (0.113 R)
• M59: 18,814,027 km (0.086 R)
• M60: 18,919,194 km (0.069 R)
• M61: 19,165,133 km (0.106 R)
• M62: 20,483,090 km (0.085 R)
• M63: 20,989,479 km (0.053 R)
• M64: 21,207,742 km (0.097 R)
• M65: 21,463,255 km (0.065 R)
• M66: 22,199,277 km (0.089 R)
• M67: 22,347,379 km (0.077 R)
• M68: 22,458,829 km (0.099 R)
• M69: 23,809,399 km (0.11 R)
• M70: 25,379,578 km (0.104 R)
• M71: 25,728,739 km (0.075 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 18,482 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit