🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433

Radius: 11.3

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.53 AU - 0.75 AU

Year: 341 Days

Day: 5.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 32,879,203 km

• M1: 148,251 km (0.102 R)
• M2: 223,200 km (0.062 R)
• M3: 306,077 km (0.036 R)
• M4: 436,676 km (0.113 R)
• M5: 578,645 km (0.091 R)
• M6: 657,931 km (0.085 R)
• M7: 728,242 km (0.108 R)
• M8: 867,069 km (0.108 R)
• M9: 952,789 km (0.104 R)
• M10: 1,094,757 km (0.072 R)
• M11: 1,176,438 km (0.089 R)
• M12: 1,288,935 km (0.112 R)
• M13: 1,392,457 km (0.096 R)
• M14: 1,464,563 km (0.073 R)
• M15: 1,581,698 km (0.12 R)
• M16: 1,693,149 km (0.106 R)
• M17: 1,766,003 km (0.095 R)
• M18: 1,914,853 km (0.061 R)
• M19: 2,048,593 km (0.097 R)
• M20: 2,121,597 km (0.043 R)
• M21: 2,245,165 km (0.083 R)
• M22: 2,356,017 km (0.097 R)
• M23: 2,453,255 km (0.079 R)
• M24: 2,536,282 km (0.106 R)
• M25: 2,620,207 km (0.058 R)
• M26: 2,694,407 km (0.114 R)
• M27: 2,855,823 km (0.108 R)
• M28: 2,954,408 km (0.087 R)
• M29: 3,093,086 km (0.064 R)
• M30: 3,222,637 km (0.096 R)
• M31: 3,313,742 km (0.118 R)
• M32: 3,411,579 km (0.086 R)
• M33: 3,639,866 km (0.12 R)
• M34: 3,891,340 km (0.031 R)
• M35: 4,117,681 km (0.057 R)
• M36: 4,192,032 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.3

Radius: 9.5

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.57 AU - 0.73 AU

Year: 349 Days

Day: 14.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 32,879,203 km

• M1: 121,623 km (0.063 R)
• M2: 184,155 km (0.062 R)
• M3: 262,694 km (0.064 R)
• M4: 324,777 km (0.102 R)
• M5: 416,480 km (0.118 R)
• M6: 504,594 km (0.077 R)
• M7: 594,203 km (0.093 R)
• M8: 664,514 km (0.087 R)
• M9: 784,342 km (0.083 R)
• M10: 873,053 km (0.065 R)
• M11: 933,042 km (0.083 R)
• M12: 1,038,808 km (0.116 R)
• M13: 1,121,984 km (0.079 R)
• M14: 1,199,476 km (0.096 R)
• M15: 1,270,984 km (0.12 R)
• M16: 1,331,720 km (0.032 R)
• M17: 1,418,337 km (0.103 R)
• M18: 1,699,133 km (0.077 R)
• M19: 1,784,553 km (0.118 R)
• M20: 1,922,482 km (0.12 R)
• M21: 2,035,429 km (0.1 R)
• M22: 2,112,023 km (0.101 R)
• M23: 2,174,854 km (0.109 R)
• M24: 2,248,306 km (0.066 R)
• M25: 2,392,668 km (0.094 R)
• M26: 2,494,096 km (0.109 R)
• M27: 2,732,704 km (0.118 R)
• M28: 2,806,905 km (0.049 R)
• M29: 2,897,860 km (0.117 R)
• M30: 2,973,557 km (0.107 R)
• M31: 3,171,176 km (0.092 R)
• M32: 3,254,801 km (0.094 R)
• M33: 3,395,872 km (0.098 R)
• M34: 3,487,276 km (0.029 R)
• M35: 3,579,428 km (0.118 R)
• M36: 3,701,650 km (0.081 R)
• M37: 3,795,747 km (0.117 R)
• M38: 3,854,988 km (0.1 R)
• M39: 3,992,468 km (0.118 R)
• M40: 4,149,695 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.3

Radius: 14

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.72 AU - 0.9 AU

Year: 486 Days

Day: 11.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 32,879,203 km

• M1: 175,179 km (0.037 R)
• M2: 266,434 km (0.061 R)
• M3: 364,570 km (0.097 R)
• M4: 458,069 km (0.064 R)
• M5: 557,402 km (0.069 R)
• M6: 706,700 km (0.053 R)
• M7: 797,057 km (0.081 R)
• M8: 899,083 km (0.114 R)
• M9: 1,039,256 km (0.079 R)
• M10: 1,137,093 km (0.074 R)
• M11: 1,278,314 km (0.054 R)
• M12: 1,367,624 km (0.067 R)
• M13: 1,484,759 km (0.091 R)
• M14: 1,693,747 km (0.069 R)
• M15: 1,792,930 km (0.064 R)
• M16: 1,880,296 km (0.082 R)
• M17: 1,983,219 km (0.03 R)
• M18: 2,219,733 km (0.11 R)
• M19: 2,314,129 km (0.069 R)
• M20: 2,409,872 km (0.115 R)
• M21: 2,537,778 km (0.076 R)
• M22: 2,626,191 km (0.115 R)
• M23: 2,721,036 km (0.109 R)
• M24: 2,843,856 km (0.073 R)
• M25: 3,012,452 km (0.106 R)
• M26: 3,274,548 km (0.095 R)
• M27: 3,411,280 km (0.097 R)
• M28: 3,515,101 km (0.028 R)
• M29: 3,678,911 km (0.102 R)
• M30: 3,941,306 km (0.056 R)
• M31: 4,111,697 km (0.082 R)
• M32: 4,240,950 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.2

Radius: 11

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.77 AU - 1.07 AU

Year: 588 Days

Day: 6.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 32,879,203 km

• M1: 140,173 km (0.103 R)
• M2: 212,878 km (0.067 R)
• M3: 321,187 km (0.06 R)
• M4: 402,867 km (0.052 R)
• M5: 501,003 km (0.073 R)
• M6: 597,494 km (0.073 R)
• M7: 778,657 km (0.105 R)
• M8: 850,464 km (0.057 R)
• M9: 924,664 km (0.08 R)
• M10: 1,001,408 km (0.111 R)
• M11: 1,075,758 km (0.07 R)
• M12: 1,186,162 km (0.072 R)
• M13: 1,255,425 km (0.114 R)
• M14: 1,336,208 km (0.049 R)
• M15: 1,424,172 km (0.081 R)
• M16: 1,498,073 km (0.098 R)
• M17: 1,655,600 km (0.096 R)
• M18: 1,773,184 km (0.106 R)
• M19: 1,963,771 km (0.1 R)
• M20: 2,278,076 km (0.113 R)
• M21: 2,352,875 km (0.06 R)
• M22: 2,485,868 km (0.114 R)
• M23: 2,601,956 km (0.096 R)
• M24: 2,699,942 km (0.056 R)
• M25: 2,900,104 km (0.064 R)
• M26: 2,981,486 km (0.059 R)
• M27: 3,111,935 km (0.116 R)
• M28: 3,202,292 km (0.076 R)
• M29: 3,300,727 km (0.085 R)
• M30: 3,400,060 km (0.103 R)
• M31: 3,471,718 km (0.108 R)
• M32: 3,565,516 km (0.077 R)
• M33: 3,638,370 km (0.082 R)
• M34: 3,733,664 km (0.116 R)
• M35: 3,889,545 km (0.117 R)
• M36: 4,002,341 km (0.065 R)
• M37: 4,116,036 km (0.089 R)
• M38: 4,230,927 km (0.044 R)
• M39: 4,300,490 km (0.069 R)
• M40: 4,479,708 km (0.091 R)
• M41: 4,550,618 km (0.03 R)
• M42: 4,685,405 km (0.064 R)
• M43: 4,910,401 km (0.063 R)
• M44: 4,983,404 km (0.099 R)
• M45: 5,279,458 km (0.109 R)
• M46: 5,429,655 km (0.086 R)
• M47: 5,505,351 km (0.051 R)
• M48: 5,615,156 km (0.11 R)
• M49: 5,734,236 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.9

Radius: 11

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.12 AU - 1.18 AU

Year: 822 Days

Day: 6 Hours

Environment

Temp: -190 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (52)

Outer Limit: 32,879,203 km

• M1: 153,338 km (0.031 R)
• M2: 222,751 km (0.062 R)
• M3: 291,417 km (0.082 R)
• M4: 395,238 km (0.105 R)
• M5: 472,280 km (0.115 R)
• M6: 684,709 km (0.105 R)
• M7: 776,712 km (0.04 R)
• M8: 846,126 km (0.106 R)
• M9: 1,020,856 km (0.12 R)
• M10: 1,152,352 km (0.052 R)
• M11: 1,658,292 km (0.089 R)
• M12: 1,843,794 km (0.115 R)
• M13: 2,181,436 km (0.074 R)
• M14: 2,251,298 km (0.051 R)
• M15: 2,473,900 km (0.09 R)
• M16: 2,804,212 km (0.088 R)
• M17: 2,906,238 km (0.101 R)
• M18: 2,992,107 km (0.098 R)
• M19: 3,122,556 km (0.113 R)
• M20: 3,219,496 km (0.119 R)
• M21: 3,335,434 km (0.105 R)
• M22: 3,498,197 km (0.065 R)
• M23: 3,626,701 km (0.079 R)
• M24: 3,831,650 km (0.096 R)
• M25: 4,050,213 km (0.084 R)
• M26: 4,175,576 km (0.085 R)
• M27: 4,321,882 km (0.057 R)
• M28: 4,440,065 km (0.055 R)
• M29: 4,801,344 km (0.045 R)
• M30: 4,883,024 km (0.088 R)
• M31: 4,975,326 km (0.052 R)
• M32: 5,120,137 km (0.054 R)
• M33: 5,361,139 km (0.116 R)
• M34: 5,745,905 km (0.059 R)
• M35: 5,952,649 km (0.118 R)
• M36: 6,095,515 km (0.05 R)
• M37: 6,173,007 km (0.101 R)
• M38: 6,295,378 km (0.101 R)
• M39: 6,373,617 km (0.107 R)
• M40: 6,474,745 km (0.064 R)
• M41: 6,633,020 km (0.102 R)
• M42: 6,976,646 km (0.084 R)
• M43: 7,092,585 km (0.116 R)
• M44: 7,174,115 km (0.091 R)
• M45: 7,385,048 km (0.06 R)
• M46: 7,550,504 km (0.11 R)
• M47: 7,681,551 km (0.111 R)
• M48: 7,789,262 km (0.119 R)
• M49: 7,994,061 km (0.105 R)
• M50: 8,078,883 km (0.086 R)
• M51: 8,212,774 km (0.092 R)
• M52: 8,286,226 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.6

Radius: 9.3

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.18 AU - 1.9 AU

Year: 1274 Days

Day: 14.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 32,879,203 km

• M1: 125,961 km (0.061 R)
• M2: 184,903 km (0.086 R)
• M3: 321,037 km (0.119 R)
• M4: 400,025 km (0.032 R)
• M5: 470,186 km (0.049 R)
• M6: 545,434 km (0.103 R)
• M7: 638,035 km (0.11 R)
• M8: 716,275 km (0.114 R)
• M9: 791,223 km (0.117 R)
• M10: 1,017,415 km (0.103 R)
• M11: 1,142,329 km (0.119 R)
• M12: 1,416,542 km (0.072 R)
• M13: 1,557,164 km (0.113 R)
• M14: 1,629,270 km (0.119 R)
• M15: 1,814,473 km (0.116 R)
• M16: 1,880,894 km (0.087 R)
• M17: 2,065,647 km (0.07 R)
• M18: 2,135,210 km (0.054 R)
• M19: 2,266,557 km (0.079 R)
• M20: 2,411,069 km (0.109 R)
• M21: 2,655,213 km (0.044 R)
• M22: 2,741,979 km (0.05 R)
• M23: 2,851,934 km (0.11 R)
• M24: 2,974,454 km (0.07 R)
• M25: 3,144,547 km (0.114 R)
• M26: 3,225,031 km (0.077 R)
• M27: 3,435,066 km (0.095 R)
• M28: 3,494,307 km (0.085 R)
• M29: 3,553,847 km (0.066 R)
• M30: 3,831,949 km (0.084 R)
• M31: 3,930,385 km (0.052 R)
• M32: 4,092,250 km (0.051 R)
• M33: 4,180,213 km (0.109 R)
• M34: 4,294,356 km (0.083 R)
• M35: 4,396,681 km (0.096 R)
• M36: 4,499,904 km (0.106 R)
• M37: 4,761,401 km (0.105 R)
• M38: 4,867,316 km (0.066 R)
• M39: 5,230,839 km (0.062 R)
• M40: 5,381,484 km (0.104 R)
• M41: 5,631,163 km (0.099 R)
• M42: 5,998,426 km (0.118 R)
• M43: 6,141,741 km (0.11 R)
• M44: 6,257,230 km (0.078 R)
• M45: 6,344,446 km (0.117 R)
• M46: 6,446,621 km (0.033 R)
• M47: 6,637,658 km (0.065 R)
• M48: 6,830,788 km (0.108 R)
• M49: 6,935,507 km (0.086 R)
• M50: 7,055,933 km (0.073 R)
• M51: 7,161,699 km (0.076 R)
• M52: 7,683,496 km (0.066 R)
• M53: 7,808,111 km (0.109 R)
• M54: 8,233,568 km (0.082 R)
• M55: 8,992,029 km (0.112 R)
• M56: 9,057,553 km (0.112 R)
• M57: 9,304,988 km (0.086 R)
• M58: 9,371,259 km (0.06 R)
• M59: 9,705,461 km (0.119 R)
• M60: 9,806,440 km (0.086 R)
• M61: 9,941,676 km (0.055 R)
• M62: 10,265,256 km (0.045 R)
• M63: 10,385,383 km (0.09 R)
• M64: 10,505,959 km (0.115 R)
• M65: 10,783,314 km (0.055 R)
• M66: 11,028,056 km (0.045 R)
• M67: 11,133,522 km (0.051 R)
• M68: 11,327,700 km (0.051 R)
• M69: 11,576,482 km (0.107 R)
• M70: 12,097,531 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.2

Radius: 9.2

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.73 AU - 2.73 AU

Year: 2221 Days

Day: 11.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 32,879,203 km

• M1: 177,124 km (0.028 R)
• M2: 296,503 km (0.115 R)
• M3: 428,747 km (0.053 R)
• M4: 512,522 km (0.048 R)
• M5: 602,730 km (0.057 R)
• M6: 712,983 km (0.07 R)
• M7: 785,688 km (0.113 R)
• M8: 1,011,431 km (0.061 R)
• M9: 1,085,781 km (0.034 R)
• M10: 1,187,957 km (0.041 R)
• M11: 1,257,968 km (0.067 R)
• M12: 1,504,955 km (0.088 R)
• M13: 1,581,100 km (0.12 R)
• M14: 1,817,614 km (0.093 R)
• M15: 2,086,741 km (0.044 R)
• M16: 2,313,531 km (0.084 R)
• M17: 2,571,288 km (0.028 R)
• M18: 2,697,848 km (0.112 R)
• M19: 2,767,710 km (0.048 R)
• M20: 2,838,320 km (0.111 R)
• M21: 2,921,347 km (0.074 R)
• M22: 3,065,709 km (0.057 R)
• M23: 3,224,881 km (0.049 R)
• M24: 3,399,163 km (0.101 R)
• M25: 3,487,575 km (0.071 R)
• M26: 3,564,020 km (0.092 R)
• M27: 3,692,524 km (0.073 R)
• M28: 3,967,485 km (0.073 R)
• M29: 4,047,370 km (0.08 R)
• M30: 4,208,487 km (0.087 R)
• M31: 4,317,245 km (0.097 R)
• M32: 4,537,453 km (0.102 R)
• M33: 4,607,016 km (0.116 R)
• M34: 4,733,127 km (0.109 R)
• M35: 4,803,737 km (0.055 R)
• M36: 4,917,432 km (0.099 R)
• M37: 5,191,046 km (0.109 R)
• M38: 5,278,411 km (0.083 R)
• M39: 5,337,054 km (0.078 R)
• M40: 5,603,338 km (0.118 R)
• M41: 7,209,271 km (0.045 R)
• M42: 7,306,958 km (0.051 R)
• M43: 7,405,095 km (0.115 R)
• M44: 7,652,380 km (0.091 R)
• M45: 7,718,801 km (0.106 R)
• M46: 8,393,488 km (0.114 R)
• M47: 8,685,952 km (0.096 R)
• M48: 8,911,994 km (0.089 R)
• M49: 9,034,365 km (0.026 R)
• M50: 9,405,218 km (0.068 R)
• M51: 9,476,427 km (0.093 R)
• M52: 9,601,341 km (0.084 R)
• M53: 9,709,051 km (0.071 R)
• M54: 9,781,008 km (0.114 R)
• M55: 9,943,471 km (0.04 R)
• M56: 10,252,989 km (0.105 R)
• M57: 10,363,093 km (0.04 R)
• M58: 10,639,849 km (0.047 R)
• M59: 10,788,400 km (0.044 R)
• M60: 10,862,900 km (0.112 R)
• M61: 11,732,662 km (0.073 R)
• M62: 12,098,429 km (0.103 R)
• M63: 12,331,352 km (0.095 R)
• M64: 12,428,890 km (0.067 R)
• M65: 12,487,533 km (0.105 R)
• M66: 12,781,941 km (0.089 R)
• M67: 12,900,423 km (0.113 R)
• M68: 12,979,560 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.3

Radius: 9.4

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 4.27 AU - 7.09 AU

Year: 9027 Days

Day: 6 Hours

Environment

Temp: -226 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (66)

Outer Limit: 32,879,203 km

• M1: 119,828 km (0.065 R)
• M2: 359,633 km (0.105 R)
• M3: 858,243 km (0.094 R)
• M4: 1,184,217 km (0.099 R)
• M5: 1,377,946 km (0.041 R)
• M6: 1,530,237 km (0.066 R)
• M7: 1,670,260 km (0.082 R)
• M8: 1,833,023 km (0.06 R)
• M9: 2,660,748 km (0.089 R)
• M10: 2,744,971 km (0.081 R)
• M11: 2,981,635 km (0.117 R)
• M12: 3,269,761 km (0.108 R)
• M13: 3,337,528 km (0.111 R)
• M14: 3,474,560 km (0.063 R)
• M15: 3,730,672 km (0.116 R)
• M16: 4,460,410 km (0.047 R)
• M17: 4,535,807 km (0.075 R)
• M18: 4,815,855 km (0.065 R)
• M19: 5,608,275 km (0.059 R)
• M20: 5,909,116 km (0.094 R)
• M21: 6,384,239 km (0.048 R)
• M22: 6,871,629 km (0.097 R)
• M23: 7,700,700 km (0.062 R)
• M24: 9,002,650 km (0.087 R)
• M25: 9,098,243 km (0.039 R)
• M26: 9,162,271 km (0.112 R)
• M27: 9,354,953 km (0.086 R)
• M28: 9,809,731 km (0.12 R)
• M29: 10,673,359 km (0.09 R)
• M30: 11,526,815 km (0.088 R)
• M31: 11,734,906 km (0.055 R)
• M32: 12,119,671 km (0.107 R)
• M33: 12,901,470 km (0.099 R)
• M34: 13,226,097 km (0.113 R)
• M35: 15,610,687 km (0.092 R)
• M36: 16,149,838 km (0.061 R)
• M37: 16,343,867 km (0.12 R)
• M38: 16,499,598 km (0.114 R)
• M39: 17,009,278 km (0.103 R)
• M40: 17,325,528 km (0.116 R)
• M41: 18,044,196 km (0.1 R)
• M42: 18,488,053 km (0.117 R)
• M43: 18,976,490 km (0.026 R)
• M44: 19,222,429 km (0.032 R)
• M45: 20,845,715 km (0.051 R)
• M46: 20,972,425 km (0.101 R)
• M47: 21,695,282 km (0.102 R)
• M48: 21,866,571 km (0.075 R)
• M49: 22,772,985 km (0.08 R)
• M50: 22,859,901 km (0.083 R)
• M51: 23,735,797 km (0.115 R)
• M52: 24,089,147 km (0.066 R)
• M53: 25,025,031 km (0.083 R)
• M54: 26,154,794 km (0.064 R)
• M55: 26,611,367 km (0.108 R)
• M56: 26,978,480 km (0.076 R)
• M57: 27,116,559 km (0.064 R)
• M58: 27,764,168 km (0.108 R)
• M59: 28,792,055 km (0.112 R)
• M60: 29,168,892 km (0.088 R)
• M61: 29,500,102 km (0.116 R)
• M62: 29,642,369 km (0.057 R)
• M63: 31,029,590 km (0.12 R)
• M64: 31,561,261 km (0.027 R)
• M65: 32,096,074 km (0.055 R)
• M66: 32,731,865 km (0.091 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 11,966 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit