🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.5 AU - 0.82 AU

Year: 204 Days

Day: 26.4 Hours

Environment

Temp: 129 °C

Axial Tilt: 27.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,570,309 km

• M1: 162,314 km (0.095 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.54 AU - 1.74 AU

Year: 800 Days

Day: 29.9 Hours

Environment

Temp: -66 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,570,309 km

• M1: 196,123 km (0.116 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.21 AU - 2.47 AU

Year: 1363 Days

Day: 31.3 Hours

Environment

Temp: -87 °C

Axial Tilt: 42.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,570,309 km

• M1: 657,183 km (0.076 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.95 AU - 3.71 AU

Year: 2314 Days

Day: 30.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.65 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.3 AU - 4.64 AU

Year: 3012 Days

Day: 25.2 Hours

Environment

Temp: -123 °C

Axial Tilt: 25.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.2

Radius: 14.8

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.47 AU - 5.19 AU

Year: 3431 Days

Day: 8.4 Hours

Environment

Temp: -129 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (64)

Outer Limit: 77,570,309 km

• M1: 201,359 km (0.119 R)
• M2: 337,792 km (0.1 R)
• M3: 450,140 km (0.092 R)
• M4: 657,183 km (0.086 R)
• M5: 753,674 km (0.1 R)
• M6: 856,149 km (0.099 R)
• M7: 1,019,958 km (0.116 R)
• M8: 1,116,000 km (0.085 R)
• M9: 1,266,346 km (0.107 R)
• M10: 1,500,167 km (0.073 R)
• M11: 1,611,319 km (0.089 R)
• M12: 1,818,961 km (0.09 R)
• M13: 1,926,073 km (0.113 R)
• M14: 2,875,421 km (0.057 R)
• M15: 2,987,619 km (0.099 R)
• M16: 3,406,643 km (0.082 R)
• M17: 3,645,999 km (0.081 R)
• M18: 3,829,257 km (0.093 R)
• M19: 4,047,071 km (0.071 R)
• M20: 4,593,103 km (0.063 R)
• M21: 4,791,470 km (0.093 R)
• M22: 4,992,679 km (0.105 R)
• M23: 5,421,128 km (0.083 R)
• M24: 5,666,319 km (0.104 R)
• M25: 5,861,544 km (0.082 R)
• M26: 6,295,378 km (0.08 R)
• M27: 6,460,833 km (0.118 R)
• M28: 7,175,312 km (0.1 R)
• M29: 7,348,247 km (0.092 R)
• M30: 7,464,186 km (0.03 R)
• M31: 7,580,872 km (0.047 R)
• M32: 8,053,901 km (0.102 R)
• M33: 8,374,489 km (0.088 R)
• M34: 8,495,813 km (0.117 R)
• M35: 8,699,415 km (0.107 R)
• M36: 8,884,019 km (0.111 R)
• M37: 9,445,610 km (0.073 R)
• M38: 9,656,543 km (0.095 R)
• M39: 9,762,607 km (0.07 R)
• M40: 10,363,841 km (0.048 R)
• M41: 10,537,824 km (0.081 R)
• M42: 10,866,789 km (0.092 R)
• M43: 11,288,356 km (0.084 R)
• M44: 11,624,951 km (0.114 R)
• M45: 11,828,404 km (0.12 R)
• M46: 12,423,206 km (0.12 R)
• M47: 12,608,109 km (0.057 R)
• M48: 12,770,721 km (0.08 R)
• M49: 12,887,258 km (0.072 R)
• M50: 13,475,627 km (0.084 R)
• M51: 13,594,258 km (0.118 R)
• M52: 13,928,459 km (0.077 R)
• M53: 14,096,607 km (0.077 R)
• M54: 14,532,236 km (0.07 R)
• M55: 14,776,081 km (0.093 R)
• M56: 15,169,074 km (0.115 R)
• M57: 15,615,475 km (0.055 R)
• M58: 15,865,303 km (0.03 R)
• M59: 16,267,721 km (0.038 R)
• M60: 16,571,854 km (0.075 R)
• M61: 16,826,619 km (0.049 R)
• M62: 17,057,149 km (0.092 R)
• M63: 17,159,923 km (0.112 R)
• M64: 17,366,218 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.9

Radius: 8.3

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.12 AU - 6.7 AU

Year: 5471 Days

Day: 14.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 77,570,309 km

• M1: 113,096 km (0.117 R)
• M2: 220,208 km (0.044 R)
• M3: 405,709 km (0.109 R)
• M4: 463,005 km (0.075 R)
• M5: 630,854 km (0.101 R)
• M6: 907,012 km (0.051 R)
• M7: 998,566 km (0.113 R)
• M8: 1,093,112 km (0.072 R)
• M9: 1,306,438 km (0.074 R)
• M10: 1,788,891 km (0.088 R)
• M11: 1,871,619 km (0.104 R)
• M12: 1,955,693 km (0.118 R)
• M13: 2,250,999 km (0.083 R)
• M14: 2,616,616 km (0.099 R)
• M15: 3,321,372 km (0.117 R)
• M16: 3,382,557 km (0.114 R)
• M17: 3,716,011 km (0.073 R)
• M18: 3,779,590 km (0.119 R)
• M19: 4,169,442 km (0.111 R)
• M20: 4,369,305 km (0.097 R)
• M21: 4,459,064 km (0.105 R)
• M22: 4,549,421 km (0.106 R)
• M23: 4,617,637 km (0.08 R)
• M24: 4,870,757 km (0.116 R)
• M25: 5,294,867 km (0.034 R)
• M26: 5,952,948 km (0.09 R)
• M27: 6,922,492 km (0.085 R)
• M28: 7,080,018 km (0.099 R)
• M29: 7,479,146 km (0.029 R)
• M30: 7,559,928 km (0.108 R)
• M31: 8,133,038 km (0.096 R)
• M32: 8,382,866 km (0.054 R)
• M33: 8,776,757 km (0.073 R)
• M34: 9,119,037 km (0.077 R)
• M35: 9,378,739 km (0.085 R)
• M36: 9,582,342 km (0.088 R)
• M37: 10,023,656 km (0.096 R)
• M38: 10,201,976 km (0.049 R)
• M39: 11,479,991 km (0.076 R)
• M40: 12,169,338 km (0.076 R)
• M41: 12,775,509 km (0.053 R)
• M42: 12,839,836 km (0.102 R)
• M43: 13,001,252 km (0.115 R)
• M44: 13,130,953 km (0.117 R)
• M45: 13,456,927 km (0.06 R)
• M46: 13,522,451 km (0.107 R)
• M47: 13,653,798 km (0.104 R)
• M48: 13,950,899 km (0.094 R)
• M49: 14,116,803 km (0.118 R)
• M50: 14,753,492 km (0.118 R)
• M51: 15,092,331 km (0.057 R)
• M52: 15,228,614 km (0.091 R)
• M53: 15,468,121 km (0.063 R)
• M54: 16,124,257 km (0.102 R)
• M55: 16,543,430 km (0.105 R)
• M56: 17,036,954 km (0.118 R)
• M57: 17,214,377 km (0.083 R)
• M58: 18,437,190 km (0.106 R)
• M59: 18,655,902 km (0.091 R)
• M60: 18,875,511 km (0.12 R)
• M61: 19,169,471 km (0.111 R)
• M62: 19,836,678 km (0.11 R)
• M63: 20,511,514 km (0.092 R)
• M64: 22,580,901 km (0.076 R)
• M65: 23,324,702 km (0.075 R)
• M66: 23,996,994 km (0.064 R)
• M67: 24,836,238 km (0.084 R)
• M68: 24,916,573 km (0.106 R)
• M69: 25,320,038 km (0.114 R)
• M70: 25,482,053 km (0.059 R)
• M71: 27,245,213 km (0.11 R)
• M72: 27,660,796 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.1

Radius: 10.2

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 5.8 AU - 6.72 AU

Year: 5964 Days

Day: 14.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 77,570,309 km

• M1: 155,881 km (0.11 R)
• M2: 239,057 km (0.095 R)
• M3: 332,855 km (0.039 R)
• M4: 407,654 km (0.101 R)
• M5: 513,270 km (0.049 R)
• M6: 664,663 km (0.067 R)
• M7: 793,467 km (0.107 R)
• M8: 871,108 km (0.111 R)
• M9: 1,219,971 km (0.099 R)
• M10: 1,357,451 km (0.097 R)
• M11: 1,775,278 km (0.108 R)
• M12: 2,012,391 km (0.119 R)
• M13: 2,134,911 km (0.031 R)
• M14: 2,204,025 km (0.103 R)
• M15: 2,373,221 km (0.108 R)
• M16: 2,546,754 km (0.115 R)
• M17: 2,620,207 km (0.074 R)
• M18: 2,830,093 km (0.065 R)
• M19: 3,029,955 km (0.078 R)
• M20: 3,123,753 km (0.068 R)
• M21: 3,202,591 km (0.084 R)
• M22: 3,346,355 km (0.113 R)
• M23: 3,427,287 km (0.085 R)
• M24: 3,841,225 km (0.077 R)
• M25: 4,011,317 km (0.12 R)
• M26: 4,114,689 km (0.107 R)
• M27: 4,306,324 km (0.096 R)
• M28: 4,412,090 km (0.095 R)
• M29: 4,572,459 km (0.095 R)
• M30: 4,752,874 km (0.064 R)
• M31: 4,899,031 km (0.107 R)
• M32: 5,120,885 km (0.041 R)
• M33: 5,251,932 km (0.078 R)
• M34: 5,904,030 km (0.081 R)
• M35: 6,299,716 km (0.066 R)
• M36: 6,460,384 km (0.052 R)
• M37: 6,581,858 km (0.115 R)
• M38: 6,724,424 km (0.117 R)
• M39: 6,950,616 km (0.091 R)
• M40: 7,474,059 km (0.079 R)
• M41: 7,537,638 km (0.112 R)
• M42: 7,644,302 km (0.092 R)
• M43: 7,988,526 km (0.072 R)
• M44: 8,293,856 km (0.049 R)
• M45: 8,803,984 km (0.112 R)
• M46: 9,347,174 km (0.059 R)
• M47: 9,692,296 km (0.084 R)
• M48: 9,831,422 km (0.076 R)
• M49: 9,901,285 km (0.115 R)
• M50: 11,089,690 km (0.083 R)
• M51: 11,210,864 km (0.085 R)
• M52: 11,430,474 km (0.106 R)
• M53: 11,651,281 km (0.105 R)
• M54: 11,923,249 km (0.086 R)
• M55: 12,322,526 km (0.079 R)
• M56: 13,108,663 km (0.094 R)
• M57: 14,543,157 km (0.118 R)
• M58: 14,729,257 km (0.062 R)
• M59: 15,103,850 km (0.088 R)
• M60: 15,184,483 km (0.025 R)
• M61: 15,944,590 km (0.066 R)
• M62: 16,164,050 km (0.063 R)
• M63: 17,023,789 km (0.047 R)
• M64: 17,191,937 km (0.091 R)
• M65: 17,276,160 km (0.054 R)
• M66: 17,529,878 km (0.051 R)
• M67: 17,671,248 km (0.11 R)
• M68: 17,926,911 km (0.118 R)
• M69: 18,298,213 km (0.12 R)
• M70: 18,384,232 km (0.069 R)
• M71: 18,470,400 km (0.075 R)
• M72: 18,556,718 km (0.067 R)
• M73: 18,787,548 km (0.066 R)
• M74: 18,990,403 km (0.096 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.5

Radius: 12.6

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 9.62 AU - 10.58 AU

Year: 12223 Days

Day: 9.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 77,570,309 km

• M1: 195,824 km (0.119 R)
• M2: 502,200 km (0.108 R)
• M3: 630,256 km (0.059 R)
• M4: 825,331 km (0.083 R)
• M5: 1,149,360 km (0.115 R)
• M6: 2,575,178 km (0.046 R)
• M7: 2,745,869 km (0.119 R)
• M8: 2,854,477 km (0.092 R)
• M9: 2,986,721 km (0.118 R)
• M10: 3,189,127 km (0.087 R)
• M11: 3,560,130 km (0.1 R)
• M12: 3,823,422 km (0.07 R)
• M13: 4,068,314 km (0.104 R)
• M14: 4,167,797 km (0.065 R)
• M15: 4,677,327 km (0.039 R)
• M16: 4,939,572 km (0.088 R)
• M17: 5,019,308 km (0.112 R)
• M18: 6,612,974 km (0.102 R)
• M19: 6,818,821 km (0.06 R)
• M20: 7,267,315 km (0.092 R)
• M21: 7,479,744 km (0.108 R)
• M22: 7,632,932 km (0.109 R)
• M23: 8,161,312 km (0.112 R)
• M24: 8,413,983 km (0.111 R)
• M25: 8,541,290 km (0.088 R)
• M26: 8,669,346 km (0.057 R)
• M27: 8,992,178 km (0.048 R)
• M28: 9,883,632 km (0.11 R)
• M29: 11,185,582 km (0.085 R)
• M30: 11,325,756 km (0.115 R)
• M31: 11,466,677 km (0.11 R)
• M32: 11,749,866 km (0.04 R)
• M33: 12,251,318 km (0.077 R)
• M34: 12,359,776 km (0.097 R)
• M35: 12,613,793 km (0.085 R)
• M36: 13,053,461 km (0.075 R)
• M37: 13,797,412 km (0.084 R)
• M38: 14,593,272 km (0.059 R)
• M39: 14,938,993 km (0.118 R)
• M40: 15,326,302 km (0.107 R)
• M41: 15,874,129 km (0.1 R)
• M42: 16,948,691 km (0.095 R)
• M43: 17,271,673 km (0.115 R)
• M44: 17,718,970 km (0.113 R)
• M45: 18,087,879 km (0.092 R)
• M46: 18,335,164 km (0.066 R)
• M47: 18,500,619 km (0.073 R)
• M48: 18,625,085 km (0.071 R)
• M49: 18,791,587 km (0.115 R)
• M50: 19,000,126 km (0.095 R)
• M51: 19,461,935 km (0.119 R)
• M52: 19,546,308 km (0.095 R)
• M53: 20,353,837 km (0.115 R)
• M54: 22,177,585 km (0.112 R)
• M55: 22,398,092 km (0.096 R)
• M56: 23,019,522 km (0.064 R)
• M57: 23,198,142 km (0.065 R)
• M58: 23,646,786 km (0.097 R)
• M59: 24,098,123 km (0.079 R)
• M60: 24,279,585 km (0.068 R)
• M61: 25,515,712 km (0.086 R)
• M62: 26,491,240 km (0.084 R)
• M63: 26,678,536 km (0.114 R)
• M64: 26,772,334 km (0.1 R)
• M65: 27,054,177 km (0.116 R)
• M66: 27,195,547 km (0.118 R)
• M67: 27,384,489 km (0.056 R)
• M68: 29,103,817 km (0.072 R)
• M69: 29,296,948 km (0.102 R)
• M70: 29,733,325 km (0.097 R)
• M71: 29,879,183 km (0.077 R)
• M72: 30,074,109 km (0.106 R)
• M73: 30,171,647 km (0.057 R)
• M74: 30,514,076 km (0.064 R)
• M75: 31,252,342 km (0.107 R)
• M76: 32,245,821 km (0.101 R)
• M77: 32,495,799 km (0.038 R)
• M78: 33,300,037 km (0.103 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 686.1

Radius: 6.8

Gravity: 14.84 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 12.58 AU - 16 AU

Year: 20570 Days

Day: 24.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 77,570,309 km

• M1: 91,554 km (0.114 R)
• M2: 1,194,988 km (0.095 R)
• M3: 1,309,879 km (0.072 R)
• M4: 1,428,360 km (0.051 R)
• M5: 1,970,952 km (0.026 R)
• M6: 2,141,942 km (0.097 R)
• M7: 2,608,688 km (0.045 R)
• M8: 2,950,070 km (0.088 R)
• M9: 3,970,776 km (0.06 R)
• M10: 4,013,711 km (0.102 R)
• M11: 4,230,777 km (0.114 R)
• M12: 5,230,839 km (0.047 R)
• M13: 5,805,744 km (0.114 R)
• M14: 6,552,536 km (0.109 R)
• M15: 6,911,422 km (0.12 R)
• M16: 7,594,635 km (0.062 R)
• M17: 7,648,042 km (0.052 R)
• M18: 7,809,158 km (0.119 R)
• M19: 7,863,163 km (0.119 R)
• M20: 8,464,846 km (0.116 R)
• M21: 8,799,347 km (0.059 R)
• M22: 8,911,844 km (0.063 R)
• M23: 9,366,323 km (0.106 R)
• M24: 9,538,809 km (0.057 R)
• M25: 9,828,431 km (0.115 R)
• M26: 10,895,213 km (0.104 R)
• M27: 11,564,963 km (0.105 R)
• M28: 12,060,580 km (0.06 R)
• M29: 12,310,858 km (0.106 R)
• M30: 12,753,218 km (0.109 R)
• M31: 13,072,311 km (0.109 R)
• M32: 14,840,408 km (0.076 R)
• M33: 15,243,425 km (0.096 R)
• M34: 15,378,512 km (0.116 R)
• M35: 15,446,279 km (0.076 R)
• M36: 15,854,682 km (0.061 R)
• M37: 16,060,229 km (0.091 R)
• M38: 16,891,245 km (0.111 R)
• M39: 17,312,064 km (0.045 R)
• M40: 17,382,525 km (0.102 R)
• M41: 18,307,189 km (0.058 R)
• M42: 19,540,175 km (0.073 R)
• M43: 19,687,080 km (0.101 R)
• M44: 20,575,841 km (0.075 R)
• M45: 21,175,429 km (0.109 R)
• M46: 22,776,874 km (0.098 R)
• M47: 23,397,257 km (0.075 R)
• M48: 23,866,096 km (0.117 R)
• M49: 25,211,280 km (0.102 R)
• M50: 25,531,270 km (0.092 R)
• M51: 25,772,272 km (0.111 R)
• M52: 25,933,240 km (0.027 R)
• M53: 27,479,932 km (0.062 R)
• M54: 27,726,769 km (0.105 R)
• M55: 28,888,845 km (0.061 R)
• M56: 29,728,687 km (0.059 R)
• M57: 30,746,850 km (0.09 R)
• M58: 30,917,691 km (0.092 R)
• M59: 31,174,551 km (0.115 R)
• M60: 33,781,443 km (0.054 R)
• M61: 34,134,345 km (0.108 R)
• M62: 35,110,919 km (0.054 R)
• M63: 35,289,390 km (0.086 R)
• M64: 35,557,918 km (0.118 R)
• M65: 36,006,711 km (0.072 R)
• M66: 36,186,827 km (0.09 R)
• M67: 37,364,462 km (0.04 R)
• M68: 37,820,735 km (0.118 R)
• M69: 39,293,227 km (0.072 R)
• M70: 39,571,479 km (0.11 R)
• M71: 40,784,419 km (0.044 R)
• M72: 45,854,590 km (0.083 R)
• M73: 47,325,137 km (0.119 R)
• M74: 48,115,762 km (0.11 R)
• M75: 48,711,610 km (0.054 R)
• M76: 50,211,927 km (0.063 R)
• M77: 50,917,131 km (0.097 R)
• M78: 51,422,922 km (0.093 R)
• M79: 52,235,687 km (0.117 R)
• M80: 52,439,589 km (0.082 R)
• M81: 53,257,590 km (0.105 R)
• M82: 53,771,010 km (0.081 R)
• M83: 55,736,875 km (0.112 R)
• M84: 56,153,805 km (0.086 R)
• M85: 56,258,074 km (0.105 R)
• M86: 57,095,523 km (0.118 R)
• M87: 58,464,942 km (0.104 R)
• M88: 60,807,196 km (0.117 R)
• M89: 66,463,641 km (0.038 R)
• M90: 66,905,703 km (0.111 R)
• M91: 70,589,550 km (0.062 R)
• M92: 70,927,791 km (0.069 R)
• M93: 74,224,180 km (0.043 R)
• M94: 75,027,371 km (0.079 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 19,962 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit