🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.9

Radius: 8.2

Gravity: 10.39 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.52 AU - 0.52 AU

Year: 254 Days

Day: 9.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 67,707,145 km

• M1: 102,624 km (0.087 R)
• M2: 184,005 km (0.091 R)
• M3: 246,537 km (0.111 R)
• M4: 315,203 km (0.068 R)
• M5: 382,372 km (0.074 R)
• M6: 452,534 km (0.109 R)
• M7: 565,779 km (0.106 R)
• M8: 620,083 km (0.037 R)
• M9: 698,772 km (0.103 R)
• M10: 787,782 km (0.104 R)
• M11: 856,298 km (0.117 R)
• M12: 909,106 km (0.041 R)
• M13: 992,432 km (0.116 R)
• M14: 1,101,190 km (0.115 R)
• M15: 1,198,279 km (0.066 R)
• M16: 1,249,890 km (0.055 R)
• M17: 1,443,171 km (0.107 R)
• M18: 1,532,780 km (0.057 R)
• M19: 1,672,803 km (0.046 R)
• M20: 1,749,098 km (0.085 R)
• M21: 1,835,566 km (0.116 R)
• M22: 1,942,379 km (0.079 R)
• M23: 2,060,711 km (0.096 R)
• M24: 2,123,243 km (0.116 R)
• M25: 2,186,522 km (0.101 R)
• M26: 2,240,378 km (0.04 R)
• M27: 2,354,820 km (0.079 R)
• M28: 2,430,367 km (0.107 R)
• M29: 2,615,270 km (0.076 R)
• M30: 2,683,187 km (0.055 R)
• M31: 2,751,554 km (0.085 R)
• M32: 2,842,060 km (0.115 R)
• M33: 2,944,385 km (0.067 R)
• M34: 3,031,601 km (0.085 R)
• M35: 3,191,671 km (0.117 R)
• M36: 3,281,280 km (0.084 R)
• M37: 3,411,430 km (0.1 R)
• M38: 3,485,780 km (0.062 R)
• M39: 3,537,541 km (0.081 R)
• M40: 3,601,270 km (0.12 R)
• M41: 3,800,534 km (0.088 R)
• M42: 3,907,496 km (0.104 R)
• M43: 4,045,725 km (0.096 R)
• M44: 4,112,296 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.4

Radius: 14.5

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.61 AU - 0.75 AU

Year: 380 Days

Day: 13.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 67,707,145 km

• M1: 181,761 km (0.116 R)
• M2: 275,260 km (0.045 R)
• M3: 402,867 km (0.078 R)
• M4: 493,823 km (0.086 R)
• M5: 587,471 km (0.106 R)
• M6: 680,970 km (0.093 R)
• M7: 776,712 km (0.058 R)
• M8: 882,179 km (0.092 R)
• M9: 975,079 km (0.116 R)
• M10: 1,067,082 km (0.072 R)
• M11: 1,226,104 km (0.058 R)
• M12: 1,398,740 km (0.084 R)
• M13: 1,520,513 km (0.109 R)
• M14: 1,618,350 km (0.11 R)
• M15: 1,718,580 km (0.119 R)
• M16: 1,838,259 km (0.094 R)
• M17: 1,937,292 km (0.1 R)
• M18: 2,080,308 km (0.108 R)
• M19: 2,208,513 km (0.069 R)
• M20: 2,358,410 km (0.114 R)
• M21: 2,460,436 km (0.113 R)
• M22: 2,557,226 km (0.055 R)
• M23: 2,648,929 km (0.089 R)
• M24: 2,883,200 km (0.073 R)
• M25: 2,978,793 km (0.115 R)
• M26: 3,208,575 km (0.063 R)
• M27: 3,336,332 km (0.065 R)
• M28: 3,480,394 km (0.099 R)
• M29: 3,663,502 km (0.108 R)
• M30: 3,782,433 km (0.078 R)
• M31: 3,910,189 km (0.084 R)
• M32: 4,001,294 km (0.1 R)
• M33: 4,278,948 km (0.061 R)
• M34: 4,475,519 km (0.033 R)
• M35: 4,570,963 km (0.117 R)
• M36: 4,683,311 km (0.037 R)
• M37: 4,861,482 km (0.071 R)
• M38: 5,075,108 km (0.065 R)
• M39: 5,494,879 km (0.093 R)
• M40: 5,597,204 km (0.12 R)
• M41: 5,778,068 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.4

Radius: 8.9

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.77 AU - 0.81 AU

Year: 476 Days

Day: 12.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 67,707,145 km

• M1: 134,488 km (0.102 R)
• M2: 207,193 km (0.039 R)
• M3: 318,344 km (0.065 R)
• M4: 389,852 km (0.108 R)
• M5: 516,561 km (0.045 R)
• M6: 615,894 km (0.065 R)
• M7: 746,643 km (0.104 R)
• M8: 839,094 km (0.109 R)
• M9: 895,792 km (0.084 R)
• M10: 1,022,501 km (0.119 R)
• M11: 1,088,175 km (0.063 R)
• M12: 1,150,408 km (0.119 R)
• M13: 1,258,866 km (0.083 R)
• M14: 1,339,799 km (0.104 R)
• M15: 1,438,384 km (0.108 R)
• M16: 1,517,970 km (0.088 R)
• M17: 1,654,104 km (0.059 R)
• M18: 1,760,169 km (0.082 R)
• M19: 1,822,700 km (0.1 R)
• M20: 1,950,158 km (0.075 R)
• M21: 2,086,442 km (0.063 R)
• M22: 2,207,616 km (0.091 R)
• M23: 2,269,101 km (0.1 R)
• M24: 2,337,467 km (0.087 R)
• M25: 2,546,605 km (0.107 R)
• M26: 2,696,053 km (0.112 R)
• M27: 2,788,504 km (0.112 R)
• M28: 2,942,740 km (0.116 R)
• M29: 3,051,647 km (0.055 R)
• M30: 3,175,664 km (0.114 R)
• M31: 3,252,407 km (0.078 R)
• M32: 3,350,992 km (0.043 R)
• M33: 3,407,690 km (0.108 R)
• M34: 3,493,559 km (0.028 R)
• M35: 3,572,696 km (0.099 R)
• M36: 3,674,572 km (0.082 R)
• M37: 3,733,065 km (0.107 R)
• M38: 3,903,308 km (0.116 R)
• M39: 3,985,586 km (0.06 R)
• M40: 4,182,457 km (0.081 R)
• M41: 4,297,498 km (0.114 R)
• M42: 4,570,065 km (0.111 R)
• M43: 4,993,577 km (0.072 R)
• M44: 5,124,026 km (0.107 R)
• M45: 5,197,778 km (0.105 R)
• M46: 5,338,250 km (0.076 R)
• M47: 5,413,049 km (0.074 R)
• M48: 5,656,744 km (0.12 R)
• M49: 5,784,202 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.4

Radius: 12.4

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.75 AU - 1.09 AU

Year: 599 Days

Day: 7.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (47)

Outer Limit: 67,707,145 km

• M1: 173,534 km (0.094 R)
• M2: 262,544 km (0.093 R)
• M3: 380,727 km (0.085 R)
• M4: 468,092 km (0.09 R)
• M5: 621,878 km (0.098 R)
• M6: 708,346 km (0.077 R)
• M7: 823,087 km (0.068 R)
• M8: 905,217 km (0.11 R)
• M9: 1,041,800 km (0.037 R)
• M10: 1,126,322 km (0.092 R)
• M11: 1,213,388 km (0.088 R)
• M12: 1,383,182 km (0.051 R)
• M13: 1,488,948 km (0.108 R)
• M14: 1,573,171 km (0.076 R)
• M15: 1,690,306 km (0.094 R)
• M16: 1,900,940 km (0.051 R)
• M17: 1,979,629 km (0.094 R)
• M18: 2,066,395 km (0.111 R)
• M19: 2,264,463 km (0.092 R)
• M20: 2,548,101 km (0.087 R)
• M21: 2,934,213 km (0.069 R)
• M22: 3,033,695 km (0.059 R)
• M23: 3,165,641 km (0.089 R)
• M24: 3,251,959 km (0.104 R)
• M25: 3,459,301 km (0.104 R)
• M26: 3,629,992 km (0.113 R)
• M27: 3,745,482 km (0.112 R)
• M28: 3,963,147 km (0.1 R)
• M29: 4,306,025 km (0.082 R)
• M30: 4,454,875 km (0.097 R)
• M31: 4,730,584 km (0.084 R)
• M32: 4,929,549 km (0.098 R)
• M33: 5,011,828 km (0.081 R)
• M34: 5,159,182 km (0.042 R)
• M35: 5,252,082 km (0.108 R)
• M36: 5,430,104 km (0.088 R)
• M37: 5,515,075 km (0.071 R)
• M38: 5,638,643 km (0.093 R)
• M39: 5,772,832 km (0.076 R)
• M40: 5,985,860 km (0.117 R)
• M41: 6,201,430 km (0.081 R)
• M42: 6,280,567 km (0.089 R)
• M43: 6,359,854 km (0.11 R)
• M44: 6,549,844 km (0.047 R)
• M45: 6,711,260 km (0.054 R)
• M46: 6,823,009 km (0.104 R)
• M47: 6,945,530 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.9

Radius: 13.6

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.24 AU - 3.18 AU

Year: 3026 Days

Day: 14.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (63)

Outer Limit: 67,707,145 km

• M1: 181,163 km (0.111 R)
• M2: 265,835 km (0.067 R)
• M3: 383,419 km (0.106 R)
• M4: 484,548 km (0.101 R)
• M5: 609,911 km (0.091 R)
• M6: 801,994 km (0.056 R)
• M7: 1,030,879 km (0.114 R)
• M8: 1,153,998 km (0.095 R)
• M9: 1,424,321 km (0.115 R)
• M10: 1,562,999 km (0.091 R)
• M11: 1,661,284 km (0.057 R)
• M12: 1,901,838 km (0.099 R)
• M13: 2,026,752 km (0.111 R)
• M14: 2,407,479 km (0.078 R)
• M15: 2,681,392 km (0.04 R)
• M16: 2,778,780 km (0.107 R)
• M17: 3,111,636 km (0.111 R)
• M18: 3,214,110 km (0.115 R)
• M19: 3,399,013 km (0.058 R)
• M20: 3,516,448 km (0.1 R)
• M21: 3,999,948 km (0.103 R)
• M22: 4,149,247 km (0.115 R)
• M23: 4,275,058 km (0.113 R)
• M24: 4,389,351 km (0.043 R)
• M25: 4,530,572 km (0.116 R)
• M26: 4,660,273 km (0.087 R)
• M27: 5,016,615 km (0.105 R)
• M28: 5,164,418 km (0.113 R)
• M29: 5,354,557 km (0.104 R)
• M30: 5,533,326 km (0.11 R)
• M31: 5,658,240 km (0.103 R)
• M32: 5,826,239 km (0.089 R)
• M33: 5,967,459 km (0.053 R)
• M34: 6,138,599 km (0.116 R)
• M35: 6,224,767 km (0.097 R)
• M36: 6,427,473 km (0.112 R)
• M37: 6,646,933 km (0.111 R)
• M38: 6,779,925 km (0.103 R)
• M39: 7,003,574 km (0.12 R)
• M40: 7,093,632 km (0.101 R)
• M41: 7,396,867 km (0.12 R)
• M42: 7,534,796 km (0.117 R)
• M43: 7,719,998 km (0.064 R)
• M44: 7,813,048 km (0.111 R)
• M45: 8,000,494 km (0.041 R)
• M46: 8,157,871 km (0.054 R)
• M47: 8,427,746 km (0.118 R)
• M48: 8,732,925 km (0.112 R)
• M49: 8,895,089 km (0.089 R)
• M50: 9,321,144 km (0.099 R)
• M51: 9,687,061 km (0.082 R)
• M52: 9,939,133 km (0.115 R)
• M53: 10,142,436 km (0.037 R)
• M54: 10,312,978 km (0.083 R)
• M55: 10,415,752 km (0.098 R)
• M56: 10,587,789 km (0.101 R)
• M57: 10,864,994 km (0.112 R)
• M58: 11,109,437 km (0.091 R)
• M59: 11,285,215 km (0.041 R)
• M60: 11,586,205 km (0.109 R)
• M61: 11,693,168 km (0.072 R)
• M62: 11,961,696 km (0.115 R)
• M63: 12,232,319 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.2

Radius: 10.9

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 5.13 AU - 5.83 AU

Year: 8701 Days

Day: 14.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 67,707,145 km

• M1: 138,976 km (0.096 R)
• M2: 218,712 km (0.081 R)
• M3: 505,641 km (0.11 R)
• M4: 686,804 km (0.116 R)
• M5: 757,115 km (0.072 R)
• M6: 845,078 km (0.088 R)
• M7: 1,375,403 km (0.112 R)
• M8: 1,714,242 km (0.105 R)
• M9: 1,913,806 km (0.074 R)
• M10: 2,142,541 km (0.115 R)
• M11: 2,402,243 km (0.087 R)
• M12: 3,120,013 km (0.117 R)
• M13: 3,515,400 km (0.064 R)
• M14: 3,693,422 km (0.041 R)
• M15: 3,979,453 km (0.055 R)
• M16: 4,380,974 km (0.082 R)
• M17: 4,600,583 km (0.077 R)
• M18: 4,683,909 km (0.101 R)
• M19: 5,107,870 km (0.071 R)
• M20: 5,194,188 km (0.096 R)
• M21: 7,702,794 km (0.117 R)
• M22: 8,270,668 km (0.116 R)
• M23: 8,372,245 km (0.108 R)
• M24: 8,440,312 km (0.117 R)
• M25: 8,679,668 km (0.118 R)
• M26: 8,817,448 km (0.102 R)
• M27: 9,025,539 km (0.052 R)
• M28: 9,095,251 km (0.106 R)
• M29: 9,517,417 km (0.099 R)
• M30: 10,490,551 km (0.074 R)
• M31: 11,007,711 km (0.108 R)
• M32: 11,269,357 km (0.088 R)
• M33: 11,836,932 km (0.09 R)
• M34: 11,951,673 km (0.098 R)
• M35: 12,259,246 km (0.075 R)
• M36: 12,336,439 km (0.081 R)
• M37: 12,452,826 km (0.075 R)
• M38: 12,803,783 km (0.076 R)
• M39: 13,316,454 km (0.077 R)
• M40: 13,795,766 km (0.059 R)
• M41: 13,956,733 km (0.077 R)
• M42: 14,037,516 km (0.118 R)
• M43: 14,199,531 km (0.111 R)
• M44: 14,566,195 km (0.088 R)
• M45: 14,689,165 km (0.103 R)
• M46: 15,392,275 km (0.079 R)
• M47: 15,810,999 km (0.045 R)
• M48: 16,659,668 km (0.067 R)
• M49: 17,046,528 km (0.082 R)
• M50: 17,741,410 km (0.093 R)
• M51: 17,916,589 km (0.091 R)
• M52: 18,401,286 km (0.093 R)
• M53: 18,623,140 km (0.069 R)
• M54: 18,845,741 km (0.04 R)
• M55: 19,473,903 km (0.118 R)
• M56: 19,609,289 km (0.113 R)
• M57: 20,520,639 km (0.038 R)
• M58: 20,612,642 km (0.057 R)
• M59: 21,074,151 km (0.089 R)
• M60: 21,213,277 km (0.079 R)
• M61: 23,145,035 km (0.08 R)
• M62: 23,336,520 km (0.113 R)
• M63: 23,432,562 km (0.034 R)
• M64: 23,576,624 km (0.101 R)
• M65: 23,721,136 km (0.097 R)
• M66: 23,914,117 km (0.106 R)
• M67: 24,059,377 km (0.102 R)
• M68: 24,985,388 km (0.069 R)
• M69: 26,271,331 km (0.12 R)
• M70: 27,731,107 km (0.118 R)
• M71: 29,010,468 km (0.068 R)
• M72: 29,839,390 km (0.029 R)
• M73: 31,097,358 km (0.115 R)
• M74: 31,785,957 km (0.09 R)
• M75: 32,158,755 km (0.091 R)
• M76: 32,694,016 km (0.079 R)
• M77: 32,855,133 km (0.059 R)
• M78: 33,990,581 km (0.097 R)
• M79: 34,426,360 km (0.085 R)
• M80: 35,966,619 km (0.111 R)
• M81: 36,077,471 km (0.072 R)
• M82: 36,466,426 km (0.093 R)
• M83: 37,024,575 km (0.077 R)
• M84: 37,192,424 km (0.108 R)
• M85: 37,473,070 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 908.6

Radius: 4.5

Gravity: 44.87 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 7.01 AU - 8.45 AU

Year: 14577 Days

Day: 20.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 67,707,145 km

• M1: 79,885 km (0.055 R)
• M2: 205,847 km (0.107 R)
• M3: 307,424 km (0.09 R)
• M4: 390,002 km (0.062 R)
• M5: 480,060 km (0.081 R)
• M6: 904,918 km (0.085 R)
• M7: 1,075,160 km (0.109 R)
• M8: 1,177,036 km (0.075 R)
• M9: 1,362,986 km (0.117 R)
• M10: 1,529,638 km (0.107 R)
• M11: 2,227,512 km (0.117 R)
• M12: 2,798,228 km (0.068 R)
• M13: 3,675,919 km (0.109 R)
• M14: 3,791,259 km (0.085 R)
• M15: 3,986,185 km (0.084 R)
• M16: 4,264,437 km (0.115 R)
• M17: 4,345,070 km (0.074 R)
• M18: 5,352,013 km (0.096 R)
• M19: 5,570,576 km (0.091 R)
• M20: 6,243,467 km (0.083 R)
• M21: 6,289,244 km (0.086 R)
• M22: 6,473,549 km (0.078 R)
• M23: 7,084,506 km (0.072 R)
• M24: 7,180,099 km (0.104 R)
• M25: 7,469,571 km (0.091 R)
• M26: 9,180,522 km (0.056 R)
• M27: 10,025,601 km (0.117 R)
• M28: 11,507,367 km (0.05 R)
• M29: 11,619,715 km (0.034 R)
• M30: 12,997,362 km (0.083 R)
• M31: 14,004,006 km (0.104 R)
• M32: 19,131,623 km (0.077 R)
• M33: 19,733,605 km (0.085 R)
• M34: 20,138,417 km (0.08 R)
• M35: 21,231,079 km (0.111 R)
• M36: 21,507,387 km (0.071 R)
• M37: 21,645,914 km (0.12 R)
• M38: 22,906,127 km (0.071 R)
• M39: 22,976,737 km (0.107 R)
• M40: 23,402,493 km (0.054 R)
• M41: 23,759,283 km (0.109 R)
• M42: 24,117,870 km (0.068 R)
• M43: 24,261,932 km (0.113 R)
• M44: 24,695,467 km (0.092 R)
• M45: 25,716,921 km (0.095 R)
• M46: 25,937,578 km (0.044 R)
• M47: 26,677,788 km (0.056 R)
• M48: 26,826,638 km (0.108 R)
• M49: 28,330,396 km (0.049 R)
• M50: 28,482,238 km (0.108 R)
• M51: 30,325,732 km (0.089 R)
• M52: 33,482,846 km (0.099 R)
• M53: 34,693,392 km (0.062 R)
• M54: 35,672,061 km (0.119 R)
• M55: 35,754,041 km (0.097 R)
• M56: 36,082,558 km (0.039 R)
• M57: 37,323,322 km (0.057 R)
• M58: 39,337,508 km (0.103 R)
• M59: 39,507,002 km (0.073 R)
• M60: 40,528,756 km (0.073 R)
• M61: 41,300,681 km (0.052 R)
• M62: 42,859,192 km (0.101 R)
• M63: 43,033,623 km (0.099 R)
• M64: 43,295,569 km (0.114 R)
• M65: 43,821,106 km (0.104 R)
• M66: 43,908,770 km (0.097 R)
• M67: 44,790,051 km (0.09 R)
• M68: 46,390,748 km (0.083 R)
• M69: 46,569,668 km (0.049 R)
• M70: 47,018,312 km (0.097 R)
• M71: 47,468,302 km (0.03 R)
• M72: 47,829,282 km (0.057 R)
• M73: 49,099,966 km (0.108 R)
• M74: 49,464,985 km (0.068 R)
• M75: 50,014,308 km (0.12 R)
• M76: 50,289,718 km (0.067 R)
• M77: 50,381,720 km (0.101 R)
• M78: 50,657,729 km (0.105 R)
• M79: 53,258,787 km (0.071 R)
• M80: 53,540,031 km (0.073 R)
• M81: 53,727,776 km (0.082 R)
• M82: 54,104,015 km (0.062 R)
• M83: 54,764,489 km (0.071 R)
• M84: 55,998,073 km (0.071 R)
• M85: 56,857,513 km (0.082 R)
• M86: 57,145,040 km (0.077 R)
• M87: 58,106,655 km (0.12 R)
• M88: 58,879,777 km (0.11 R)
• M89: 59,948,355 km (0.084 R)
• M90: 60,240,968 km (0.042 R)
• M91: 61,317,624 km (0.115 R)
• M92: 62,104,808 km (0.11 R)
• M93: 64,585,889 km (0.09 R)
• M94: 65,989,416 km (0.052 R)
• M95: 66,090,095 km (0.113 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 12,198 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit