🌌 Stone's Star System Generator

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.7

Radius: 12.3

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.99 AU - 1.09 AU

Year: 707 Days

Day: 8.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 33,230,975 km

• M1: 177,872 km (0.069 R)
• M2: 305,628 km (0.083 R)
• M3: 382,372 km (0.076 R)
• M4: 495,767 km (0.073 R)
• M5: 601,832 km (0.054 R)
• M6: 773,122 km (0.061 R)
• M7: 936,183 km (0.089 R)
• M8: 1,062,444 km (0.116 R)
• M9: 1,166,863 km (0.108 R)
• M10: 1,251,835 km (0.099 R)
• M11: 1,333,216 km (0.071 R)
• M12: 1,526,347 km (0.111 R)
• M13: 1,613,862 km (0.103 R)
• M14: 1,767,948 km (0.112 R)
• M15: 1,934,001 km (0.031 R)
• M16: 2,042,909 km (0.069 R)
• M17: 2,246,062 km (0.037 R)
• M18: 2,324,751 km (0.038 R)
• M19: 2,433,808 km (0.067 R)
• M20: 2,664,637 km (0.056 R)
• M21: 2,778,930 km (0.032 R)
• M22: 2,887,239 km (0.054 R)
• M23: 3,004,823 km (0.079 R)
• M24: 3,156,066 km (0.074 R)
• M25: 3,433,122 km (0.069 R)
• M26: 3,524,526 km (0.095 R)
• M27: 3,726,782 km (0.105 R)
• M28: 3,889,694 km (0.115 R)
• M29: 4,267,130 km (0.09 R)
• M30: 4,546,578 km (0.071 R)
• M31: 4,776,510 km (0.11 R)
• M32: 5,180,873 km (0.056 R)
• M33: 5,305,339 km (0.111 R)
• M34: 5,382,382 km (0.027 R)
• M35: 5,459,873 km (0.097 R)
• M36: 5,576,709 km (0.08 R)
• M37: 5,674,846 km (0.114 R)
• M38: 5,842,844 km (0.069 R)
• M39: 6,052,879 km (0.06 R)
• M40: 6,143,536 km (0.113 R)
• M41: 6,234,790 km (0.094 R)
• M42: 6,542,064 km (0.086 R)
• M43: 6,843,953 km (0.047 R)
• M44: 7,033,493 km (0.103 R)
• M45: 7,203,586 km (0.111 R)
• M46: 7,289,156 km (0.054 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.2

Radius: 9

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.13 AU - 1.71 AU

Year: 1128 Days

Day: 10.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 33,230,975 km

• M1: 140,024 km (0.053 R)
• M2: 208,689 km (0.085 R)
• M3: 269,875 km (0.081 R)
• M4: 374,892 km (0.093 R)
• M5: 476,619 km (0.105 R)
• M6: 554,410 km (0.047 R)
• M7: 714,928 km (0.077 R)
• M8: 825,930 km (0.093 R)
• M9: 917,035 km (0.069 R)
• M10: 985,102 km (0.111 R)
• M11: 1,160,131 km (0.058 R)
• M12: 1,245,701 km (0.109 R)
• M13: 1,387,371 km (0.105 R)
• M14: 1,454,091 km (0.096 R)
• M15: 1,777,971 km (0.114 R)
• M16: 1,857,557 km (0.063 R)
• M17: 1,938,340 km (0.082 R)
• M18: 2,040,964 km (0.108 R)
• M19: 2,230,355 km (0.095 R)
• M20: 2,302,012 km (0.079 R)
• M21: 2,359,906 km (0.118 R)
• M22: 2,649,229 km (0.118 R)
• M23: 2,717,745 km (0.112 R)
• M24: 2,871,830 km (0.115 R)
• M25: 2,957,849 km (0.1 R)
• M26: 3,343,512 km (0.027 R)
• M27: 3,609,497 km (0.078 R)
• M28: 3,762,087 km (0.119 R)
• M29: 3,882,364 km (0.107 R)
• M30: 3,977,658 km (0.118 R)
• M31: 4,179,765 km (0.074 R)
• M32: 4,295,404 km (0.119 R)
• M33: 4,430,191 km (0.068 R)
• M34: 4,529,973 km (0.071 R)
• M35: 4,713,231 km (0.107 R)
• M36: 4,936,431 km (0.066 R)
• M37: 5,021,103 km (0.087 R)
• M38: 5,106,075 km (0.108 R)
• M39: 5,296,961 km (0.065 R)
• M40: 5,412,601 km (0.103 R)
• M41: 5,626,825 km (0.114 R)
• M42: 5,814,121 km (0.044 R)
• M43: 6,083,846 km (0.052 R)
• M44: 6,144,284 km (0.113 R)
• M45: 6,235,389 km (0.113 R)
• M46: 6,306,597 km (0.1 R)
• M47: 6,449,763 km (0.055 R)
• M48: 6,563,008 km (0.071 R)
• M49: 6,666,680 km (0.116 R)
• M50: 6,843,953 km (0.079 R)
• M51: 6,938,349 km (0.056 R)
• M52: 7,001,629 km (0.101 R)
• M53: 7,096,923 km (0.106 R)
• M54: 7,192,516 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.6

Radius: 14.6

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.96 AU - 2.08 AU

Year: 1915 Days

Day: 8.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 33,230,975 km

• M1: 192,233 km (0.1 R)
• M2: 304,880 km (0.112 R)
• M3: 439,070 km (0.058 R)
• M4: 543,190 km (0.113 R)
• M5: 665,411 km (0.089 R)
• M6: 783,594 km (0.105 R)
• M7: 877,691 km (0.079 R)
• M8: 984,653 km (0.097 R)
• M9: 1,105,528 km (0.053 R)
• M10: 1,325,288 km (0.043 R)
• M11: 1,590,525 km (0.082 R)
• M12: 1,841,251 km (0.087 R)
• M13: 1,971,700 km (0.102 R)
• M14: 2,082,851 km (0.09 R)
• M15: 2,196,246 km (0.089 R)
• M16: 2,346,891 km (0.075 R)
• M17: 2,732,704 km (0.107 R)
• M18: 2,857,469 km (0.095 R)
• M19: 3,309,703 km (0.093 R)
• M20: 3,416,367 km (0.111 R)
• M21: 3,551,304 km (0.063 R)
• M22: 3,674,423 km (0.113 R)
• M23: 4,037,946 km (0.083 R)
• M24: 4,238,706 km (0.1 R)
• M25: 4,398,626 km (0.082 R)
• M26: 4,531,170 km (0.051 R)
• M27: 4,650,100 km (0.101 R)
• M28: 4,800,147 km (0.08 R)
• M29: 4,967,098 km (0.108 R)
• M30: 5,136,144 km (0.101 R)
• M31: 5,275,868 km (0.116 R)
• M32: 5,495,777 km (0.117 R)
• M33: 6,026,101 km (0.112 R)
• M34: 6,339,060 km (0.103 R)
• M35: 6,573,031 km (0.042 R)
• M36: 6,827,048 km (0.043 R)
• M37: 7,327,154 km (0.071 R)
• M38: 7,839,377 km (0.114 R)
• M39: 8,546,526 km (0.105 R)
• M40: 8,824,030 km (0.115 R)
• M41: 9,464,010 km (0.072 R)
• M42: 9,693,643 km (0.118 R)
• M43: 10,138,696 km (0.072 R)
• M44: 10,452,254 km (0.098 R)
• M45: 10,709,412 km (0.114 R)
• M46: 11,109,138 km (0.05 R)
• M47: 11,250,209 km (0.072 R)
• M48: 11,351,486 km (0.061 R)
• M49: 11,944,044 km (0.059 R)
• M50: 12,504,886 km (0.104 R)
• M51: 12,904,761 km (0.067 R)
• M52: 13,032,069 km (0.061 R)
• M53: 13,244,797 km (0.066 R)
• M54: 13,933,845 km (0.026 R)
• M55: 14,042,603 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.9

Radius: 10

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.86 AU - 2.86 AU

Year: 2418 Days

Day: 11.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 33,230,975 km

• M1: 127,009 km (0.082 R)
• M2: 225,444 km (0.094 R)
• M3: 424,559 km (0.113 R)
• M4: 498,460 km (0.048 R)
• M5: 572,062 km (0.081 R)
• M6: 655,687 km (0.1 R)
• M7: 756,068 km (0.036 R)
• M8: 836,701 km (0.028 R)
• M9: 1,132,157 km (0.059 R)
• M10: 1,225,805 km (0.068 R)
• M11: 1,627,176 km (0.101 R)
• M12: 1,800,560 km (0.082 R)
• M13: 1,945,520 km (0.114 R)
• M14: 2,112,322 km (0.099 R)
• M15: 2,238,134 km (0.07 R)
• M16: 2,348,088 km (0.108 R)
• M17: 2,630,978 km (0.104 R)
• M18: 2,776,686 km (0.101 R)
• M19: 2,934,961 km (0.103 R)
• M20: 3,239,841 km (0.042 R)
• M21: 3,417,264 km (0.106 R)
• M22: 3,544,572 km (0.108 R)
• M23: 3,630,142 km (0.079 R)
• M24: 3,902,410 km (0.085 R)
• M25: 3,990,972 km (0.059 R)
• M26: 4,113,792 km (0.043 R)
• M27: 4,237,958 km (0.085 R)
• M28: 4,735,221 km (0.1 R)
• M29: 4,841,735 km (0.086 R)
• M30: 5,435,190 km (0.116 R)
• M31: 5,746,952 km (0.087 R)
• M32: 5,911,360 km (0.109 R)
• M33: 6,026,101 km (0.113 R)
• M34: 6,103,144 km (0.074 R)
• M35: 6,322,904 km (0.115 R)
• M36: 6,387,979 km (0.092 R)
• M37: 6,690,466 km (0.046 R)
• M38: 6,796,830 km (0.102 R)
• M39: 7,159,904 km (0.068 R)
• M40: 7,227,821 km (0.117 R)
• M41: 7,419,157 km (0.083 R)
• M42: 7,501,735 km (0.083 R)
• M43: 7,723,289 km (0.113 R)
• M44: 7,961,150 km (0.119 R)
• M45: 8,116,283 km (0.092 R)
• M46: 8,286,675 km (0.053 R)
• M47: 8,400,968 km (0.113 R)
• M48: 8,515,859 km (0.072 R)
• M49: 8,587,815 km (0.113 R)
• M50: 9,039,003 km (0.077 R)
• M51: 9,215,678 km (0.11 R)
• M52: 9,572,618 km (0.105 R)
• M53: 9,964,415 km (0.051 R)
• M54: 10,177,442 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885

Radius: 12.2

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.03 AU - 2.87 AU

Year: 2557 Days

Day: 14.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (69)

Outer Limit: 33,230,975 km

• M1: 153,637 km (0.032 R)
• M2: 306,376 km (0.11 R)
• M3: 443,408 km (0.109 R)
• M4: 734,376 km (0.093 R)
• M5: 1,041,500 km (0.111 R)
• M6: 1,130,511 km (0.108 R)
• M7: 1,269,039 km (0.087 R)
• M8: 1,352,664 km (0.069 R)
• M9: 1,602,492 km (0.068 R)
• M10: 1,706,613 km (0.083 R)
• M11: 2,019,422 km (0.085 R)
• M12: 2,306,500 km (0.074 R)
• M13: 2,715,052 km (0.118 R)
• M14: 2,840,564 km (0.047 R)
• M15: 2,920,001 km (0.1 R)
• M16: 3,146,642 km (0.065 R)
• M17: 3,429,681 km (0.12 R)
• M18: 3,755,804 km (0.059 R)
• M19: 3,913,929 km (0.112 R)
• M20: 4,273,263 km (0.115 R)
• M21: 4,531,170 km (0.119 R)
• M22: 4,643,368 km (0.106 R)
• M23: 5,004,647 km (0.112 R)
• M24: 5,257,019 km (0.073 R)
• M25: 5,474,085 km (0.098 R)
• M26: 5,613,660 km (0.092 R)
• M27: 5,896,400 km (0.114 R)
• M28: 6,080,705 km (0.113 R)
• M29: 6,308,692 km (0.113 R)
• M30: 6,476,241 km (0.119 R)
• M31: 6,624,044 km (0.098 R)
• M32: 7,095,876 km (0.04 R)
• M33: 7,534,347 km (0.089 R)
• M34: 7,645,498 km (0.075 R)
• M35: 7,734,659 km (0.066 R)
• M36: 8,117,629 km (0.061 R)
• M37: 8,368,804 km (0.105 R)
• M38: 8,553,109 km (0.079 R)
• M39: 9,114,250 km (0.102 R)
• M40: 9,208,796 km (0.11 R)
• M41: 9,470,892 km (0.096 R)
• M42: 9,856,555 km (0.068 R)
• M43: 10,051,182 km (0.12 R)
• M44: 10,867,986 km (0.055 R)
• M45: 10,993,648 km (0.033 R)
• M46: 11,322,614 km (0.117 R)
• M47: 11,424,490 km (0.081 R)
• M48: 12,302,630 km (0.109 R)
• M49: 12,855,843 km (0.068 R)
• M50: 13,042,092 km (0.1 R)
• M51: 13,148,905 km (0.104 R)
• M52: 13,336,650 km (0.101 R)
• M53: 14,041,406 km (0.102 R)
• M54: 14,260,716 km (0.096 R)
• M55: 14,508,749 km (0.095 R)
• M56: 14,897,554 km (0.042 R)
• M57: 15,037,279 km (0.058 R)
• M58: 16,170,333 km (0.089 R)
• M59: 16,429,137 km (0.098 R)
• M60: 16,660,266 km (0.068 R)
• M61: 16,921,614 km (0.055 R)
• M62: 17,566,231 km (0.045 R)
• M63: 17,743,355 km (0.061 R)
• M64: 18,368,225 km (0.114 R)
• M65: 18,970,057 km (0.111 R)
• M66: 19,212,705 km (0.052 R)
• M67: 19,395,214 km (0.1 R)
• M68: 20,038,934 km (0.062 R)
• M69: 20,440,754 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.6

Radius: 13.8

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.31 AU - 3.77 AU

Year: 3535 Days

Day: 5 Hours

Environment

Temp: -204 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (69)

Outer Limit: 33,230,975 km

• M1: 194,627 km (0.074 R)
• M2: 329,115 km (0.088 R)
• M3: 437,275 km (0.11 R)
• M4: 598,840 km (0.116 R)
• M5: 956,379 km (0.102 R)
• M6: 1,484,908 km (0.11 R)
• M7: 1,802,505 km (0.104 R)
• M8: 1,977,235 km (0.104 R)
• M9: 2,127,282 km (0.086 R)
• M10: 2,265,660 km (0.118 R)
• M11: 2,423,037 km (0.111 R)
• M12: 2,551,691 km (0.079 R)
• M13: 2,799,126 km (0.119 R)
• M14: 3,020,082 km (0.082 R)
• M15: 3,194,214 km (0.111 R)
• M16: 3,792,306 km (0.109 R)
• M17: 4,268,775 km (0.075 R)
• M18: 4,544,035 km (0.113 R)
• M19: 4,804,934 km (0.117 R)
• M20: 5,132,853 km (0.092 R)
• M21: 5,553,073 km (0.08 R)
• M22: 5,875,756 km (0.079 R)
• M23: 6,270,993 km (0.104 R)
• M24: 6,788,901 km (0.079 R)
• M25: 7,180,548 km (0.063 R)
• M26: 7,390,883 km (0.076 R)
• M27: 7,532,402 km (0.074 R)
• M28: 7,650,884 km (0.097 R)
• M29: 7,889,792 km (0.108 R)
• M30: 8,375,087 km (0.099 R)
• M31: 8,522,591 km (0.105 R)
• M32: 8,695,825 km (0.082 R)
• M33: 9,298,555 km (0.08 R)
• M34: 9,733,735 km (0.048 R)
• M35: 9,863,137 km (0.09 R)
• M36: 10,097,258 km (0.118 R)
• M37: 10,624,142 km (0.075 R)
• M38: 11,025,363 km (0.039 R)
• M39: 11,485,975 km (0.111 R)
• M40: 11,677,460 km (0.111 R)
• M41: 12,538,546 km (0.117 R)
• M42: 12,763,990 km (0.118 R)
• M43: 13,824,638 km (0.108 R)
• M44: 14,028,391 km (0.088 R)
• M45: 14,204,019 km (0.116 R)
• M46: 14,439,186 km (0.081 R)
• M47: 14,675,701 km (0.077 R)
• M48: 14,794,332 km (0.09 R)
• M49: 14,883,642 km (0.081 R)
• M50: 15,332,585 km (0.107 R)
• M51: 15,846,902 km (0.072 R)
• M52: 16,830,209 km (0.105 R)
• M53: 17,110,406 km (0.094 R)
• M54: 17,643,722 km (0.059 R)
• M55: 18,630,470 km (0.096 R)
• M56: 19,146,882 km (0.051 R)
• M57: 19,635,169 km (0.07 R)
• M58: 19,766,067 km (0.06 R)
• M59: 19,995,850 km (0.113 R)
• M60: 20,259,591 km (0.109 R)
• M61: 20,425,046 km (0.108 R)
• M62: 20,890,595 km (0.091 R)
• M63: 21,460,712 km (0.111 R)
• M64: 21,561,840 km (0.109 R)
• M65: 21,832,313 km (0.091 R)
• M66: 22,137,942 km (0.117 R)
• M67: 22,856,610 km (0.092 R)
• M68: 22,994,390 km (0.12 R)
• M69: 23,201,583 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.1

Radius: 14.8

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.04 AU - 5 AU

Year: 5375 Days

Day: 8.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 33,230,975 km

• M1: 189,541 km (0.079 R)
• M2: 330,611 km (0.086 R)
• M3: 531,521 km (0.087 R)
• M4: 974,331 km (0.062 R)
• M5: 1,106,276 km (0.061 R)
• M6: 1,260,661 km (0.08 R)
• M7: 1,373,308 km (0.116 R)
• M8: 1,609,673 km (0.116 R)
• M9: 1,715,140 km (0.11 R)
• M10: 2,161,839 km (0.075 R)
• M11: 2,259,526 km (0.08 R)
• M12: 2,624,096 km (0.082 R)
• M13: 2,728,815 km (0.034 R)
• M14: 3,364,307 km (0.073 R)
• M15: 3,829,257 km (0.102 R)
• M16: 3,996,956 km (0.086 R)
• M17: 4,539,996 km (0.096 R)
• M18: 5,185,661 km (0.114 R)
• M19: 5,888,023 km (0.052 R)
• M20: 6,335,171 km (0.082 R)
• M21: 6,793,539 km (0.112 R)
• M22: 7,026,911 km (0.116 R)
• M23: 7,561,424 km (0.083 R)
• M24: 8,109,252 km (0.1 R)
• M25: 8,419,219 km (0.081 R)
• M26: 8,607,113 km (0.083 R)
• M27: 8,987,092 km (0.086 R)
• M28: 9,275,666 km (0.101 R)
• M29: 9,502,307 km (0.109 R)
• M30: 9,665,219 km (0.069 R)
• M31: 10,027,246 km (0.062 R)
• M32: 10,193,150 km (0.077 R)
• M33: 10,527,950 km (0.057 R)
• M34: 10,662,887 km (0.11 R)
• M35: 11,070,990 km (0.107 R)
• M36: 11,208,321 km (0.117 R)
• M37: 11,449,772 km (0.09 R)
• M38: 11,623,455 km (0.06 R)
• M39: 12,468,833 km (0.106 R)
• M40: 13,007,385 km (0.055 R)
• M41: 13,297,605 km (0.079 R)
• M42: 14,405,527 km (0.059 R)
• M43: 14,555,424 km (0.039 R)
• M44: 15,046,404 km (0.101 R)
• M45: 15,889,687 km (0.094 R)
• M46: 16,473,568 km (0.086 R)
• M47: 16,669,691 km (0.052 R)
• M48: 17,542,146 km (0.067 R)
• M49: 17,943,666 km (0.072 R)
• M50: 18,186,015 km (0.055 R)
• M51: 18,307,638 km (0.115 R)
• M52: 18,714,843 km (0.071 R)
• M53: 19,290,047 km (0.084 R)
• M54: 19,662,995 km (0.092 R)
• M55: 20,289,660 km (0.112 R)
• M56: 20,542,181 km (0.108 R)
• M57: 21,348,813 km (0.032 R)
• M58: 21,691,542 km (0.087 R)
• M59: 22,079,449 km (0.089 R)
• M60: 23,124,689 km (0.087 R)
• M61: 23,963,634 km (0.07 R)
• M62: 24,097,075 km (0.105 R)
• M63: 24,364,556 km (0.071 R)
• M64: 24,812,602 km (0.08 R)
• M65: 26,356,302 km (0.107 R)
• M66: 27,650,922 km (0.097 R)
• M67: 27,977,794 km (0.077 R)
• M68: 28,306,012 km (0.113 R)
• M69: 28,447,082 km (0.09 R)
• M70: 28,541,179 km (0.049 R)
• M71: 29,250,722 km (0.084 R)
• M72: 29,726,892 km (0.086 R)
• M73: 30,061,842 km (0.069 R)
• M74: 30,157,734 km (0.09 R)
• M75: 30,301,797 km (0.05 R)
• M76: 30,542,500 km (0.081 R)
• M77: 30,687,161 km (0.102 R)
• M78: 32,539,482 km (0.082 R)
• M79: 32,884,604 km (0.071 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 277 - 16,799 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit