🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.63

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.4 AU - 0.6 AU

Year: 228 Days

Day: 12.2 Hours

Environment

Temp: -115 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.45 AU - 0.59 AU

Year: 242 Days

Day: 44.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 134.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.81

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.48 AU - 0.68 AU

Year: 285 Days

Day: 24.4 Hours

Environment

Temp: -117 °C

Axial Tilt: 20.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534

Radius: 11.6

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.01 AU - 1.17 AU

Year: 735 Days

Day: 11.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (50)

Outer Limit: 44,708,844 km

• M1: 147,803 km (0.108 R)
• M2: 224,098 km (0.109 R)
• M3: 303,384 km (0.029 R)
• M4: 406,308 km (0.045 R)
• M5: 479,910 km (0.107 R)
• M6: 555,008 km (0.07 R)
• M7: 630,256 km (0.091 R)
• M8: 705,055 km (0.117 R)
• M9: 838,945 km (0.034 R)
• M10: 1,015,022 km (0.092 R)
• M11: 1,156,990 km (0.116 R)
• M12: 1,398,441 km (0.074 R)
• M13: 1,519,017 km (0.094 R)
• M14: 1,703,321 km (0.082 R)
• M15: 1,805,347 km (0.062 R)
• M16: 1,895,255 km (0.109 R)
• M17: 2,015,383 km (0.052 R)
• M18: 2,152,713 km (0.086 R)
• M19: 2,315,775 km (0.113 R)
• M20: 2,475,246 km (0.101 R)
• M21: 2,607,042 km (0.057 R)
• M22: 2,781,174 km (0.091 R)
• M23: 2,886,042 km (0.114 R)
• M24: 2,967,573 km (0.053 R)
• M25: 3,074,685 km (0.098 R)
• M26: 3,507,621 km (0.115 R)
• M27: 3,656,322 km (0.053 R)
• M28: 3,843,020 km (0.059 R)
• M29: 4,014,608 km (0.079 R)
• M30: 4,234,966 km (0.073 R)
• M31: 4,601,780 km (0.118 R)
• M32: 4,726,395 km (0.089 R)
• M33: 4,822,886 km (0.108 R)
• M34: 5,037,858 km (0.053 R)
• M35: 5,186,109 km (0.101 R)
• M36: 5,346,030 km (0.081 R)
• M37: 5,558,309 km (0.1 R)
• M38: 5,721,969 km (0.088 R)
• M39: 5,845,686 km (0.071 R)
• M40: 5,939,185 km (0.092 R)
• M41: 6,012,189 km (0.109 R)
• M42: 6,095,964 km (0.108 R)
• M43: 6,232,995 km (0.099 R)
• M44: 6,424,481 km (0.066 R)
• M45: 6,542,513 km (0.106 R)
• M46: 6,780,673 km (0.119 R)
• M47: 6,933,712 km (0.093 R)
• M48: 7,321,469 km (0.068 R)
• M49: 7,455,958 km (0.104 R)
• M50: 7,580,124 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.4

Radius: 13.2

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.2 AU - 1.38 AU

Year: 946 Days

Day: 10.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 44,708,844 km

• M1: 186,100 km (0.052 R)
• M2: 274,662 km (0.071 R)
• M3: 365,019 km (0.115 R)
• M4: 457,021 km (0.094 R)
• M5: 543,788 km (0.097 R)
• M6: 726,148 km (0.037 R)
• M7: 1,027,139 km (0.114 R)
• M8: 1,119,590 km (0.032 R)
• M9: 1,260,512 km (0.099 R)
• M10: 1,344,885 km (0.095 R)
• M11: 1,471,295 km (0.119 R)
• M12: 1,560,605 km (0.107 R)
• M13: 1,728,155 km (0.11 R)
• M14: 1,857,856 km (0.1 R)
• M15: 2,036,027 km (0.117 R)
• M16: 2,248,157 km (0.095 R)
• M17: 2,333,278 km (0.108 R)
• M18: 2,448,319 km (0.087 R)
• M19: 2,634,718 km (0.071 R)
• M20: 2,744,822 km (0.059 R)
• M21: 2,980,139 km (0.056 R)
• M22: 3,074,087 km (0.114 R)
• M23: 3,211,567 km (0.106 R)
• M24: 3,492,661 km (0.074 R)
• M25: 3,636,275 km (0.049 R)
• M26: 4,114,091 km (0.101 R)
• M27: 4,336,842 km (0.047 R)
• M28: 4,527,580 km (0.071 R)
• M29: 4,745,544 km (0.08 R)
• M30: 4,991,782 km (0.105 R)
• M31: 5,179,377 km (0.09 R)
• M32: 5,497,123 km (0.115 R)
• M33: 5,613,062 km (0.098 R)
• M34: 5,755,928 km (0.028 R)
• M35: 5,926,320 km (0.114 R)
• M36: 6,018,921 km (0.103 R)
• M37: 6,205,320 km (0.047 R)
• M38: 6,326,195 km (0.101 R)
• M39: 6,734,747 km (0.057 R)
• M40: 6,845,150 km (0.085 R)
• M41: 7,166,037 km (0.054 R)
• M42: 7,292,896 km (0.093 R)
• M43: 7,420,653 km (0.086 R)
• M44: 7,606,453 km (0.077 R)
• M45: 7,750,366 km (0.11 R)
• M46: 7,909,688 km (0.026 R)
• M47: 8,011,714 km (0.103 R)
• M48: 8,261,393 km (0.085 R)
• M49: 8,453,925 km (0.087 R)
• M50: 8,618,034 km (0.11 R)
• M51: 8,708,092 km (0.106 R)
• M52: 9,071,166 km (0.096 R)
• M53: 9,454,735 km (0.112 R)
• M54: 10,000,767 km (0.111 R)
• M55: 10,095,313 km (0.111 R)
• M56: 10,317,316 km (0.065 R)
• M57: 10,444,923 km (0.118 R)
• M58: 10,993,050 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.6

Radius: 10.1

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.15 AU - 1.89 AU

Year: 1210 Days

Day: 5.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 66.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 44,708,844 km

• M1: 128,355 km (0.055 R)
• M2: 193,430 km (0.111 R)
• M3: 268,977 km (0.09 R)
• M4: 432,338 km (0.066 R)
• M5: 580,889 km (0.107 R)
• M6: 644,318 km (0.104 R)
• M7: 710,590 km (0.119 R)
• M8: 924,216 km (0.071 R)
• M9: 1,028,485 km (0.081 R)
• M10: 1,144,274 km (0.037 R)
• M11: 1,437,336 km (0.091 R)
• M12: 1,510,191 km (0.106 R)
• M13: 1,651,560 km (0.111 R)
• M14: 1,814,772 km (0.114 R)
• M15: 1,938,639 km (0.102 R)
• M16: 2,010,595 km (0.116 R)
• M17: 2,185,475 km (0.059 R)
• M18: 2,317,570 km (0.113 R)
• M19: 2,471,806 km (0.061 R)
• M20: 2,540,321 km (0.105 R)
• M21: 2,639,355 km (0.085 R)
• M22: 2,719,689 km (0.113 R)
• M23: 2,841,462 km (0.105 R)
• M24: 2,996,445 km (0.076 R)
• M25: 3,080,370 km (0.103 R)
• M26: 3,250,313 km (0.114 R)
• M27: 3,401,706 km (0.105 R)
• M28: 3,633,134 km (0.109 R)
• M29: 3,745,183 km (0.103 R)
• M30: 3,858,428 km (0.114 R)
• M31: 4,007,428 km (0.039 R)
• M32: 4,263,689 km (0.116 R)
• M33: 4,405,956 km (0.102 R)
• M34: 4,780,400 km (0.1 R)
• M35: 5,039,952 km (0.119 R)
• M36: 5,215,730 km (0.112 R)
• M37: 5,367,871 km (0.052 R)
• M38: 5,611,865 km (0.111 R)
• M39: 5,912,108 km (0.079 R)
• M40: 6,150,866 km (0.078 R)
• M41: 6,555,678 km (0.085 R)
• M42: 6,637,807 km (0.092 R)
• M43: 7,165,289 km (0.075 R)
• M44: 7,263,874 km (0.066 R)
• M45: 7,591,194 km (0.075 R)
• M46: 7,792,852 km (0.101 R)
• M47: 8,069,459 km (0.043 R)
• M48: 8,216,214 km (0.071 R)
• M49: 8,408,448 km (0.057 R)
• M50: 8,587,217 km (0.075 R)
• M51: 8,737,114 km (0.094 R)
• M52: 8,827,471 km (0.098 R)
• M53: 8,918,277 km (0.082 R)
• M54: 8,993,974 km (0.079 R)
• M55: 9,085,378 km (0.089 R)
• M56: 9,192,191 km (0.1 R)
• M57: 9,299,452 km (0.116 R)
• M58: 9,453,538 km (0.052 R)
• M59: 9,608,372 km (0.097 R)
• M60: 9,717,279 km (0.106 R)
• M61: 9,826,635 km (0.047 R)
• M62: 10,156,947 km (0.051 R)
• M63: 10,267,949 km (0.098 R)
• M64: 10,587,191 km (0.078 R)
• M65: 10,828,791 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.2

Radius: 8.3

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.31 AU - 1.87 AU

Year: 1295 Days

Day: 10.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 44,708,844 km

• M1: 103,522 km (0.101 R)
• M2: 174,880 km (0.108 R)
• M3: 251,025 km (0.073 R)
• M4: 495,618 km (0.109 R)
• M5: 644,468 km (0.106 R)
• M6: 741,108 km (0.074 R)
• M7: 811,568 km (0.105 R)
• M8: 936,483 km (0.106 R)
• M9: 989,590 km (0.087 R)
• M10: 1,050,775 km (0.092 R)
• M11: 1,286,093 km (0.103 R)
• M12: 1,421,629 km (0.075 R)
• M13: 1,479,523 km (0.099 R)
• M14: 1,810,284 km (0.114 R)
• M15: 1,997,431 km (0.07 R)
• M16: 2,062,655 km (0.109 R)
• M17: 2,115,314 km (0.045 R)
• M18: 2,307,996 km (0.104 R)
• M19: 2,720,288 km (0.025 R)
• M20: 2,836,675 km (0.078 R)
• M21: 2,949,920 km (0.066 R)
• M22: 3,490,866 km (0.065 R)
• M23: 3,606,954 km (0.084 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.2

Radius: 13.5

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.04 AU - 2.2 AU

Year: 1993 Days

Day: 11.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 44,708,844 km

• M1: 193,131 km (0.108 R)
• M2: 289,173 km (0.099 R)
• M3: 373,396 km (0.103 R)
• M4: 533,765 km (0.092 R)
• M5: 629,657 km (0.118 R)
• M6: 894,296 km (0.082 R)
• M7: 1,099,993 km (0.102 R)
• M8: 1,248,544 km (0.114 R)
• M9: 1,418,188 km (0.085 R)
• M10: 1,509,592 km (0.114 R)
• M11: 1,698,534 km (0.097 R)
• M12: 1,841,849 km (0.069 R)
• M13: 1,973,794 km (0.075 R)
• M14: 2,198,042 km (0.05 R)
• M15: 2,654,465 km (0.061 R)
• M16: 2,867,043 km (0.119 R)
• M17: 3,020,979 km (0.1 R)
• M18: 3,140,658 km (0.064 R)
• M19: 3,299,680 km (0.075 R)
• M20: 3,499,842 km (0.07 R)
• M21: 3,625,804 km (0.055 R)
• M22: 3,773,157 km (0.119 R)
• M23: 4,073,700 km (0.061 R)
• M24: 4,361,526 km (0.083 R)
• M25: 4,592,355 km (0.107 R)
• M26: 4,687,948 km (0.04 R)
• M27: 4,892,000 km (0.081 R)
• M28: 5,209,147 km (0.08 R)
• M29: 5,353,509 km (0.04 R)
• M30: 5,909,864 km (0.046 R)
• M31: 6,083,846 km (0.105 R)
• M32: 6,283,260 km (0.111 R)
• M33: 6,472,801 km (0.073 R)
• M34: 6,785,011 km (0.036 R)
• M35: 7,225,577 km (0.116 R)
• M36: 7,436,809 km (0.117 R)
• M37: 7,675,418 km (0.083 R)
• M38: 7,852,841 km (0.03 R)
• M39: 7,993,313 km (0.11 R)
• M40: 8,263,637 km (0.104 R)
• M41: 8,510,922 km (0.114 R)
• M42: 8,602,626 km (0.031 R)
• M43: 8,694,628 km (0.08 R)
• M44: 8,892,995 km (0.053 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.3

Radius: 10.2

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.61 AU - 2.67 AU

Year: 2770 Days

Day: 12.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 44,708,844 km

• M1: 128,205 km (0.099 R)
• M2: 209,587 km (0.108 R)
• M3: 291,267 km (0.057 R)
• M4: 463,305 km (0.075 R)
• M5: 870,211 km (0.115 R)
• M6: 963,560 km (0.111 R)
• M7: 1,069,475 km (0.085 R)
• M8: 1,179,579 km (0.061 R)
• M9: 1,245,701 km (0.091 R)
• M10: 1,362,089 km (0.048 R)
• M11: 1,431,652 km (0.071 R)
• M12: 1,765,704 km (0.08 R)
• M13: 1,897,350 km (0.09 R)
• M14: 2,089,583 km (0.112 R)
• M15: 2,205,821 km (0.085 R)
• M16: 2,276,431 km (0.057 R)
• M17: 2,444,579 km (0.074 R)
• M18: 2,679,298 km (0.081 R)
• M19: 2,831,439 km (0.099 R)
• M20: 2,960,392 km (0.097 R)
• M21: 3,413,674 km (0.097 R)
• M22: 4,192,780 km (0.103 R)
• M23: 4,414,633 km (0.079 R)
• M24: 4,504,392 km (0.092 R)
• M25: 5,056,408 km (0.056 R)
• M26: 5,420,230 km (0.038 R)
• M27: 5,858,253 km (0.105 R)
• M28: 6,006,953 km (0.104 R)
• M29: 6,257,380 km (0.091 R)
• M30: 6,443,180 km (0.111 R)
• M31: 6,528,301 km (0.091 R)
• M32: 6,647,980 km (0.108 R)
• M33: 6,733,999 km (0.099 R)
• M34: 6,941,940 km (0.074 R)
• M35: 7,099,317 km (0.114 R)
• M36: 7,169,628 km (0.098 R)
• M37: 7,293,195 km (0.052 R)
• M38: 7,524,623 km (0.105 R)
• M39: 7,686,339 km (0.075 R)
• M40: 7,849,101 km (0.114 R)
• M41: 7,994,809 km (0.097 R)
• M42: 8,067,963 km (0.104 R)
• M43: 8,325,869 km (0.074 R)
• M44: 8,586,619 km (0.047 R)
• M45: 9,307,680 km (0.117 R)
• M46: 9,462,065 km (0.109 R)
• M47: 9,558,855 km (0.063 R)
• M48: 9,792,677 km (0.081 R)
• M49: 10,008,696 km (0.107 R)
• M50: 10,107,431 km (0.089 R)
• M51: 10,445,522 km (0.067 R)
• M52: 10,626,086 km (0.088 R)
• M53: 10,767,157 km (0.099 R)
• M54: 11,030,898 km (0.027 R)
• M55: 11,132,924 km (0.12 R)
• M56: 11,399,507 km (0.102 R)
• M57: 11,502,730 km (0.089 R)
• M58: 11,813,893 km (0.116 R)
• M59: 12,148,993 km (0.059 R)
• M60: 12,721,653 km (0.105 R)
• M61: 12,936,027 km (0.101 R)
• M62: 13,411,748 km (0.045 R)
• M63: 13,629,862 km (0.04 R)
• M64: 13,695,535 km (0.093 R)
• M65: 14,918,199 km (0.12 R)
• M66: 14,985,817 km (0.054 R)
• M67: 15,098,913 km (0.105 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.5

Radius: 8.5

Gravity: 8.63 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 5.9 AU - 6.06 AU

Year: 9442 Days

Day: 12.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 44,708,844 km

• M1: 116,986 km (0.104 R)
• M2: 231,877 km (0.094 R)
• M3: 462,557 km (0.042 R)
• M4: 589,565 km (0.087 R)
• M5: 1,077,404 km (0.047 R)
• M6: 1,289,982 km (0.118 R)
• M7: 1,558,660 km (0.111 R)
• M8: 2,293,635 km (0.091 R)
• M9: 2,543,014 km (0.091 R)
• M10: 2,671,070 km (0.051 R)
• M11: 3,259,738 km (0.093 R)
• M12: 3,712,570 km (0.087 R)
• M13: 4,005,782 km (0.092 R)
• M14: 4,125,161 km (0.103 R)
• M15: 4,428,695 km (0.097 R)
• M16: 4,645,612 km (0.034 R)
• M17: 4,897,834 km (0.088 R)
• M18: 5,481,565 km (0.108 R)
• M19: 6,363,295 km (0.106 R)
• M20: 6,538,025 km (0.117 R)
• M21: 6,891,974 km (0.049 R)
• M22: 7,179,800 km (0.108 R)
• M23: 7,471,366 km (0.082 R)
• M24: 8,028,768 km (0.067 R)
• M25: 8,484,443 km (0.053 R)
• M26: 8,561,187 km (0.059 R)
• M27: 9,104,826 km (0.094 R)
• M28: 9,301,846 km (0.105 R)
• M29: 9,460,420 km (0.102 R)
• M30: 9,941,377 km (0.105 R)
• M31: 11,601,764 km (0.109 R)
• M32: 11,687,034 km (0.087 R)
• M33: 11,772,455 km (0.099 R)
• M34: 11,901,109 km (0.074 R)
• M35: 12,638,627 km (0.067 R)
• M36: 12,770,273 km (0.059 R)
• M37: 12,902,517 km (0.114 R)
• M38: 14,340,153 km (0.07 R)
• M39: 14,985,069 km (0.117 R)
• M40: 16,446,341 km (0.055 R)
• M41: 16,782,637 km (0.041 R)
• M42: 17,218,266 km (0.109 R)
• M43: 17,413,192 km (0.107 R)
• M44: 18,002,009 km (0.092 R)
• M45: 18,298,961 km (0.113 R)
• M46: 18,447,961 km (0.082 R)
• M47: 19,807,506 km (0.081 R)
• M48: 20,216,656 km (0.101 R)
• M49: 20,319,280 km (0.11 R)
• M50: 20,628,350 km (0.027 R)
• M51: 20,731,871 km (0.095 R)
• M52: 21,251,275 km (0.064 R)
• M53: 21,775,167 km (0.096 R)
• M54: 22,462,569 km (0.106 R)
• M55: 22,728,704 km (0.09 R)
• M56: 23,533,839 km (0.071 R)
• M57: 24,457,457 km (0.108 R)
• M58: 24,786,273 km (0.114 R)
• M59: 26,116,198 km (0.109 R)
• M60: 26,789,837 km (0.118 R)
• M61: 27,185,374 km (0.078 R)
• M62: 27,753,846 km (0.097 R)
• M63: 29,541,092 km (0.067 R)
• M64: 29,657,628 km (0.116 R)
• M65: 30,301,498 km (0.101 R)
• M66: 30,950,004 km (0.091 R)
• M67: 31,009,245 km (0.108 R)
• M68: 31,246,358 km (0.096 R)
• M69: 32,021,125 km (0.108 R)
• M70: 32,380,908 km (0.095 R)
• M71: 32,741,888 km (0.101 R)
• M72: 32,862,613 km (0.04 R)
• M73: 33,407,299 km (0.108 R)
• M74: 33,955,126 km (0.075 R)
• M75: 34,199,420 km (0.081 R)
• M76: 34,751,436 km (0.061 R)
• M77: 35,802,211 km (0.118 R)
• M78: 35,988,760 km (0.101 R)
• M79: 36,050,992 km (0.07 R)
• M80: 37,429,387 km (0.114 R)
• M81: 37,745,039 km (0.071 R)
• M82: 38,506,342 km (0.113 R)
• M83: 40,108,386 km (0.114 R)
• M84: 41,601,522 km (0.097 R)
• M85: 43,311,276 km (0.076 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 285 - 11,573 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit