🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.3

Radius: 10.2

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.51 AU - 0.51 AU

Year: 243 Days

Day: 6.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 67,759,431 km

• M1: 150,645 km (0.109 R)
• M2: 214,075 km (0.058 R)
• M3: 288,125 km (0.086 R)
• M4: 437,873 km (0.102 R)
• M5: 530,773 km (0.081 R)
• M6: 625,768 km (0.107 R)
• M7: 708,795 km (0.064 R)
• M8: 777,011 km (0.093 R)
• M9: 841,189 km (0.093 R)
• M10: 989,141 km (0.081 R)
• M11: 1,088,025 km (0.117 R)
• M12: 1,224,159 km (0.074 R)
• M13: 1,296,266 km (0.079 R)
• M14: 1,437,187 km (0.081 R)
• M15: 1,533,977 km (0.076 R)
• M16: 1,637,199 km (0.08 R)
• M17: 1,742,965 km (0.061 R)
• M18: 1,979,180 km (0.042 R)
• M19: 2,074,025 km (0.105 R)
• M20: 2,151,816 km (0.11 R)
• M21: 2,221,379 km (0.108 R)
• M22: 2,291,690 km (0.113 R)
• M23: 2,362,749 km (0.103 R)
• M24: 2,453,854 km (0.101 R)
• M25: 2,531,495 km (0.111 R)
• M26: 2,595,224 km (0.075 R)
• M27: 2,679,447 km (0.066 R)
• M28: 2,749,459 km (0.078 R)
• M29: 2,876,019 km (0.088 R)
• M30: 3,193,167 km (0.115 R)
• M31: 3,288,909 km (0.091 R)
• M32: 3,423,547 km (0.107 R)
• M33: 3,659,463 km (0.109 R)
• M34: 3,804,723 km (0.077 R)
• M35: 3,889,395 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.1

Radius: 12.2

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.54 AU - 0.56 AU

Year: 272 Days

Day: 9.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 67,759,431 km

• M1: 153,338 km (0.092 R)
• M2: 233,373 km (0.111 R)
• M3: 312,510 km (0.102 R)
• M4: 390,899 km (0.1 R)
• M5: 524,041 km (0.101 R)
• M6: 632,649 km (0.048 R)
• M7: 744,549 km (0.071 R)
• M8: 843,134 km (0.042 R)
• M9: 931,097 km (0.11 R)
• M10: 1,035,367 km (0.106 R)
• M11: 1,160,730 km (0.082 R)
• M12: 1,266,944 km (0.098 R)
• M13: 1,365,978 km (0.111 R)
• M14: 1,471,445 km (0.057 R)
• M15: 1,549,535 km (0.119 R)
• M16: 1,679,236 km (0.104 R)
• M17: 1,765,255 km (0.119 R)
• M18: 1,880,894 km (0.092 R)
• M19: 1,999,076 km (0.108 R)
• M20: 2,103,196 km (0.106 R)
• M21: 2,308,146 km (0.083 R)
• M22: 2,386,834 km (0.091 R)
• M23: 2,484,222 km (0.11 R)
• M24: 2,587,445 km (0.097 R)
• M25: 2,779,828 km (0.099 R)
• M26: 2,873,177 km (0.059 R)
• M27: 3,120,761 km (0.077 R)
• M28: 3,291,303 km (0.116 R)
• M29: 3,455,112 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.7

Radius: 9.9

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.57 AU - 0.65 AU

Year: 318 Days

Day: 13.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 67,759,431 km

• M1: 126,560 km (0.115 R)
• M2: 201,957 km (0.046 R)
• M3: 265,985 km (0.032 R)
• M4: 365,168 km (0.086 R)
• M5: 530,175 km (0.098 R)
• M6: 600,187 km (0.106 R)
• M7: 673,938 km (0.113 R)
• M8: 754,272 km (0.113 R)
• M9: 817,702 km (0.09 R)
• M10: 918,381 km (0.074 R)
• M11: 1,008,888 km (0.103 R)
• M12: 1,113,906 km (0.112 R)
• M13: 1,258,567 km (0.078 R)
• M14: 1,335,311 km (0.026 R)
• M15: 1,401,283 km (0.104 R)
• M16: 1,481,019 km (0.048 R)
• M17: 1,566,888 km (0.065 R)
• M18: 1,641,089 km (0.094 R)
• M19: 1,743,563 km (0.089 R)
• M20: 1,820,606 km (0.09 R)
• M21: 1,917,546 km (0.112 R)
• M22: 2,063,852 km (0.05 R)
• M23: 2,126,235 km (0.081 R)
• M24: 2,204,025 km (0.06 R)
• M25: 2,478,837 km (0.066 R)
• M26: 2,555,730 km (0.101 R)
• M27: 2,617,813 km (0.104 R)
• M28: 2,717,296 km (0.107 R)
• M29: 2,801,968 km (0.064 R)
• M30: 2,876,767 km (0.054 R)
• M31: 2,974,006 km (0.035 R)
• M32: 3,072,441 km (0.104 R)
• M33: 3,155,318 km (0.094 R)
• M34: 3,278,138 km (0.12 R)
• M35: 3,362,811 km (0.037 R)
• M36: 3,425,342 km (0.026 R)
• M37: 3,632,835 km (0.108 R)
• M38: 3,803,077 km (0.046 R)
• M39: 4,000,097 km (0.119 R)
• M40: 4,066,519 km (0.1 R)
• M41: 4,133,240 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.4

Radius: 12.1

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.7 AU - 0.72 AU

Year: 399 Days

Day: 10.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 67,759,431 km

• M1: 183,557 km (0.073 R)
• M2: 273,914 km (0.081 R)
• M3: 367,113 km (0.103 R)
• M4: 482,752 km (0.101 R)
• M5: 591,809 km (0.07 R)
• M6: 682,914 km (0.079 R)
• M7: 929,751 km (0.11 R)
• M8: 1,038,957 km (0.093 R)
• M9: 1,167,163 km (0.1 R)
• M10: 1,326,484 km (0.113 R)
• M11: 1,617,751 km (0.08 R)
• M12: 1,734,438 km (0.104 R)
• M13: 1,825,393 km (0.077 R)
• M14: 2,012,391 km (0.086 R)
• M15: 2,175,003 km (0.028 R)
• M16: 2,273,588 km (0.11 R)
• M17: 2,468,963 km (0.117 R)
• M18: 2,565,454 km (0.092 R)
• M19: 2,749,160 km (0.063 R)
• M20: 2,876,318 km (0.101 R)
• M21: 2,957,700 km (0.096 R)
• M22: 3,060,473 km (0.092 R)
• M23: 3,157,562 km (0.116 R)
• M24: 3,262,730 km (0.105 R)
• M25: 3,369,094 km (0.118 R)
• M26: 3,476,655 km (0.082 R)
• M27: 3,651,235 km (0.093 R)
• M28: 3,769,268 km (0.055 R)
• M29: 4,169,293 km (0.109 R)
• M30: 4,277,302 km (0.044 R)
• M31: 4,448,891 km (0.112 R)
• M32: 4,614,945 km (0.081 R)
• M33: 4,694,680 km (0.039 R)
• M34: 4,791,021 km (0.111 R)
• M35: 5,084,084 km (0.115 R)
• M36: 5,249,389 km (0.071 R)
• M37: 5,366,225 km (0.108 R)
• M38: 5,543,050 km (0.084 R)
• M39: 5,619,494 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.1

Radius: 13.3

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.77 AU - 1.03 AU

Year: 569 Days

Day: 13.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 67,759,431 km

• M1: 170,990 km (0.076 R)
• M2: 293,212 km (0.098 R)
• M3: 387,758 km (0.063 R)
• M4: 474,225 km (0.096 R)
• M5: 569,519 km (0.088 R)
• M6: 691,890 km (0.116 R)
• M7: 881,580 km (0.105 R)
• M8: 994,377 km (0.088 R)
• M9: 1,129,763 km (0.036 R)
• M10: 1,376,600 km (0.1 R)
• M11: 1,548,936 km (0.088 R)
• M12: 1,701,676 km (0.083 R)
• M13: 1,797,269 km (0.103 R)
• M14: 1,994,140 km (0.12 R)
• M15: 2,117,259 km (0.056 R)
• M16: 2,228,111 km (0.083 R)
• M17: 2,325,798 km (0.079 R)
• M18: 2,424,981 km (0.115 R)
• M19: 2,596,121 km (0.103 R)
• M20: 2,893,223 km (0.091 R)
• M21: 3,008,563 km (0.095 R)
• M22: 3,226,976 km (0.055 R)
• M23: 3,372,684 km (0.064 R)
• M24: 3,468,127 km (0.118 R)
• M25: 3,564,618 km (0.114 R)
• M26: 3,670,833 km (0.047 R)
• M27: 3,823,123 km (0.085 R)
• M28: 3,950,132 km (0.032 R)
• M29: 4,199,362 km (0.086 R)
• M30: 4,387,257 km (0.082 R)
• M31: 4,482,251 km (0.092 R)
• M32: 4,616,441 km (0.087 R)
• M33: 4,781,148 km (0.115 R)
• M34: 5,066,880 km (0.066 R)
• M35: 5,307,583 km (0.101 R)
• M36: 5,789,886 km (0.086 R)
• M37: 5,967,908 km (0.058 R)
• M38: 6,115,860 km (0.034 R)
• M39: 6,361,649 km (0.087 R)
• M40: 6,491,201 km (0.069 R)
• M41: 6,719,936 km (0.074 R)
• M42: 7,107,395 km (0.1 R)
• M43: 7,253,103 km (0.084 R)
• M44: 7,547,661 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 381.6

Radius: 4.8

Gravity: 16.56 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.74 AU - 7.64 AU

Year: 10270 Days

Day: 19.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 67,759,431 km

• M1: 140,772 km (0.088 R)
• M2: 247,584 km (0.091 R)
• M3: 344,973 km (0.115 R)
• M4: 404,812 km (0.111 R)
• M5: 648,806 km (0.061 R)
• M6: 770,579 km (0.119 R)
• M7: 866,620 km (0.082 R)
• M8: 1,000,959 km (0.114 R)
• M9: 1,106,127 km (0.103 R)
• M10: 1,365,529 km (0.108 R)
• M11: 1,404,126 km (0.117 R)
• M12: 1,462,768 km (0.1 R)
• M13: 1,916,947 km (0.068 R)
• M14: 2,296,028 km (0.083 R)
• M15: 2,458,791 km (0.115 R)
• M16: 3,780,488 km (0.114 R)
• M17: 4,597,292 km (0.117 R)
• M18: 5,040,551 km (0.106 R)
• M19: 5,343,636 km (0.115 R)
• M20: 5,590,323 km (0.069 R)
• M21: 5,872,315 km (0.074 R)
• M22: 6,320,061 km (0.075 R)
• M23: 6,450,062 km (0.083 R)
• M24: 7,146,739 km (0.093 R)
• M25: 7,248,316 km (0.092 R)
• M26: 7,972,071 km (0.113 R)
• M27: 8,360,277 km (0.108 R)
• M28: 9,302,145 km (0.089 R)
• M29: 9,338,946 km (0.116 R)
• M30: 9,524,148 km (0.111 R)
• M31: 10,353,519 km (0.09 R)
• M32: 10,506,707 km (0.098 R)
• M33: 10,622,197 km (0.069 R)
• M34: 10,971,059 km (0.097 R)
• M35: 11,481,487 km (0.085 R)
• M36: 12,201,053 km (0.109 R)
• M37: 15,221,733 km (0.105 R)
• M38: 15,483,380 km (0.102 R)
• M39: 15,966,880 km (0.118 R)
• M40: 16,099,723 km (0.104 R)
• M41: 16,768,874 km (0.098 R)
• M42: 17,583,883 km (0.117 R)
• M43: 18,042,251 km (0.093 R)
• M44: 18,319,007 km (0.111 R)
• M45: 19,158,102 km (0.11 R)
• M46: 19,346,296 km (0.076 R)
• M47: 19,440,692 km (0.11 R)
• M48: 19,962,041 km (0.095 R)
• M49: 20,392,135 km (0.072 R)
• M50: 20,584,218 km (0.11 R)
• M51: 20,921,861 km (0.108 R)
• M52: 21,847,572 km (0.067 R)
• M53: 22,044,144 km (0.052 R)
• M54: 22,936,046 km (0.096 R)
• M55: 23,486,866 km (0.057 R)
• M56: 23,537,131 km (0.103 R)
• M57: 23,789,053 km (0.111 R)
• M58: 24,499,494 km (0.059 R)
• M59: 25,888,959 km (0.105 R)
• M60: 26,934,648 km (0.089 R)
• M61: 27,198,090 km (0.027 R)
• M62: 27,409,621 km (0.107 R)
• M63: 28,797,441 km (0.118 R)
• M64: 28,959,006 km (0.116 R)
• M65: 33,208,483 km (0.062 R)
• M66: 35,030,885 km (0.106 R)
• M67: 35,088,330 km (0.098 R)
• M68: 35,145,776 km (0.055 R)
• M69: 35,433,752 km (0.094 R)
• M70: 36,302,466 km (0.07 R)
• M71: 38,771,729 km (0.106 R)
• M72: 39,846,440 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 825.7

Radius: 3.4

Gravity: 71.43 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 6.16 AU - 6.8 AU

Year: 11000 Days

Day: 20.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 67,759,431 km

• M1: 142,118 km (0.114 R)
• M2: 184,604 km (0.063 R)
• M3: 219,460 km (0.102 R)
• M4: 428,897 km (0.071 R)
• M5: 493,224 km (0.051 R)
• M6: 649,554 km (0.078 R)
• M7: 781,499 km (0.105 R)
• M8: 1,341,145 km (0.057 R)
• M9: 1,460,225 km (0.082 R)
• M10: 1,607,728 km (0.116 R)
• M11: 1,683,275 km (0.097 R)
• M12: 1,943,426 km (0.068 R)
• M13: 2,105,590 km (0.095 R)
• M14: 2,414,061 km (0.111 R)
• M15: 2,442,784 km (0.108 R)
• M16: 2,887,538 km (0.068 R)
• M17: 2,948,724 km (0.062 R)
• M18: 3,583,916 km (0.056 R)
• M19: 4,469,835 km (0.11 R)
• M20: 5,344,234 km (0.06 R)
• M21: 6,269,647 km (0.105 R)
• M22: 6,388,727 km (0.094 R)
• M23: 7,326,556 km (0.106 R)
• M24: 7,452,068 km (0.09 R)
• M25: 7,790,010 km (0.108 R)
• M26: 8,349,955 km (0.064 R)
• M27: 8,789,473 km (0.039 R)
• M28: 8,878,334 km (0.06 R)
• M29: 8,967,495 km (0.068 R)
• M30: 9,599,396 km (0.051 R)
• M31: 10,479,929 km (0.097 R)
• M32: 11,337,574 km (0.12 R)
• M33: 11,385,744 km (0.117 R)
• M34: 12,118,624 km (0.114 R)
• M35: 12,465,691 km (0.093 R)
• M36: 13,118,985 km (0.094 R)
• M37: 13,680,576 km (0.052 R)
• M38: 14,511,143 km (0.039 R)
• M39: 14,721,328 km (0.106 R)
• M40: 14,985,518 km (0.092 R)
• M41: 15,358,017 km (0.088 R)
• M42: 15,841,367 km (0.109 R)
• M43: 16,548,217 km (0.103 R)
• M44: 16,658,022 km (0.106 R)
• M45: 18,049,133 km (0.068 R)
• M46: 18,558,962 km (0.096 R)
• M47: 18,729,953 km (0.103 R)
• M48: 19,188,620 km (0.118 R)
• M49: 19,419,300 km (0.102 R)
• M50: 20,940,860 km (0.118 R)
• M51: 21,956,330 km (0.065 R)
• M52: 22,561,154 km (0.103 R)
• M53: 24,159,009 km (0.112 R)
• M54: 24,595,386 km (0.094 R)
• M55: 24,720,599 km (0.065 R)
• M56: 24,845,962 km (0.075 R)
• M57: 24,971,625 km (0.114 R)
• M58: 27,982,880 km (0.079 R)
• M59: 28,704,091 km (0.076 R)
• M60: 29,897,284 km (0.094 R)
• M61: 30,432,844 km (0.113 R)
• M62: 30,836,609 km (0.073 R)
• M63: 32,950,427 km (0.092 R)
• M64: 33,850,707 km (0.114 R)
• M65: 34,338,845 km (0.106 R)
• M66: 35,392,612 km (0.06 R)
• M67: 36,385,793 km (0.119 R)
• M68: 36,742,583 km (0.077 R)
• M69: 37,603,968 km (0.085 R)
• M70: 38,254,270 km (0.118 R)
• M71: 39,565,944 km (0.066 R)
• M72: 39,712,550 km (0.068 R)
• M73: 40,227,316 km (0.109 R)
• M74: 40,301,068 km (0.105 R)
• M75: 40,448,571 km (0.107 R)
• M76: 41,114,731 km (0.041 R)
• M77: 42,158,326 km (0.104 R)
• M78: 42,458,120 km (0.109 R)
• M79: 44,652,421 km (0.044 R)
• M80: 45,494,358 km (0.059 R)
• M81: 46,960,866 km (0.068 R)
• M82: 47,271,581 km (0.081 R)
• M83: 47,427,163 km (0.098 R)
• M84: 48,207,914 km (0.111 R)
• M85: 48,521,321 km (0.089 R)
• M86: 48,835,477 km (0.118 R)
• M87: 48,914,016 km (0.088 R)
• M88: 49,702,696 km (0.114 R)
• M89: 49,781,833 km (0.094 R)
• M90: 52,254,536 km (0.103 R)
• M91: 52,415,504 km (0.111 R)
• M92: 53,303,367 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 375.9

Radius: 4

Gravity: 23.49 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 8.53 AU - 12.47 AU

Year: 22689 Days

Day: 16.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 67,759,431 km

• M1: 333,603 km (0.086 R)
• M2: 923,168 km (0.03 R)
• M3: 1,044,941 km (0.102 R)
• M4: 1,412,802 km (0.099 R)
• M5: 2,032,287 km (0.092 R)
• M6: 3,788,267 km (0.111 R)
• M7: 4,587,867 km (0.047 R)
• M8: 5,306,984 km (0.111 R)
• M9: 6,060,509 km (0.048 R)
• M10: 7,084,357 km (0.112 R)
• M11: 7,276,141 km (0.082 R)
• M12: 7,372,781 km (0.089 R)
• M13: 7,421,251 km (0.114 R)
• M14: 7,714,014 km (0.076 R)
• M15: 7,763,232 km (0.069 R)
• M16: 8,513,465 km (0.113 R)
• M17: 10,297,420 km (0.106 R)
• M18: 10,733,498 km (0.029 R)
• M19: 11,342,959 km (0.113 R)
• M20: 12,885,463 km (0.089 R)
• M21: 13,060,941 km (0.104 R)
• M22: 13,710,944 km (0.118 R)
• M23: 14,614,066 km (0.103 R)
• M24: 15,598,570 km (0.114 R)
• M25: 15,910,631 km (0.084 R)
• M26: 16,035,994 km (0.032 R)
• M27: 16,477,457 km (0.079 R)
• M28: 17,050,717 km (0.06 R)
• M29: 17,372,202 km (0.105 R)
• M30: 18,086,233 km (0.115 R)
• M31: 18,479,675 km (0.049 R)
• M32: 18,809,838 km (0.105 R)
• M33: 21,519,654 km (0.076 R)
• M34: 23,487,763 km (0.101 R)
• M35: 23,630,480 km (0.051 R)
• M36: 23,916,960 km (0.105 R)
• M37: 28,196,805 km (0.071 R)
• M38: 28,729,074 km (0.079 R)
• M39: 30,345,629 km (0.082 R)
• M40: 35,778,724 km (0.073 R)
• M41: 37,432,678 km (0.048 R)
• M42: 39,704,771 km (0.057 R)
• M43: 39,959,985 km (0.037 R)
• M44: 40,045,106 km (0.111 R)
• M45: 40,900,357 km (0.118 R)
• M46: 42,020,995 km (0.088 R)
• M47: 44,469,014 km (0.108 R)
• M48: 45,621,217 km (0.102 R)
• M49: 47,593,216 km (0.113 R)
• M50: 49,501,487 km (0.099 R)
• M51: 49,684,594 km (0.092 R)
• M52: 50,511,123 km (0.102 R)
• M53: 50,787,580 km (0.095 R)
• M54: 52,084,593 km (0.119 R)
• M55: 55,944,966 km (0.042 R)
• M56: 56,613,220 km (0.049 R)
• M57: 57,861,315 km (0.084 R)
• M58: 62,646,203 km (0.091 R)
• M59: 63,638,336 km (0.099 R)
• M60: 63,737,818 km (0.108 R)
• M61: 65,035,730 km (0.114 R)
• M62: 65,436,951 km (0.107 R)
• M63: 65,738,391 km (0.065 R)
• M64: 66,443,445 km (0.105 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 11,384 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit