🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323

Radius: 13.8

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.69 AU - 0.71 AU

Year: 412 Days

Day: 11.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 39,409,994 km

• M1: 176,525 km (0.083 R)
• M2: 283,189 km (0.069 R)
• M3: 376,687 km (0.101 R)
• M4: 466,147 km (0.118 R)
• M5: 577,298 km (0.111 R)
• M6: 764,894 km (0.086 R)
• M7: 870,809 km (0.097 R)
• M8: 956,678 km (0.103 R)
• M9: 1,102,985 km (0.057 R)
• M10: 1,197,232 km (0.036 R)
• M11: 1,306,588 km (0.067 R)
• M12: 1,398,590 km (0.088 R)
• M13: 1,584,840 km (0.116 R)
• M14: 1,692,700 km (0.109 R)
• M15: 1,793,678 km (0.074 R)
• M16: 1,896,901 km (0.058 R)
• M17: 1,987,857 km (0.076 R)
• M18: 2,134,313 km (0.086 R)
• M19: 2,259,377 km (0.102 R)
• M20: 2,392,070 km (0.096 R)
• M21: 2,548,549 km (0.098 R)
• M22: 2,692,313 km (0.116 R)
• M23: 2,822,463 km (0.101 R)
• M24: 3,049,852 km (0.103 R)
• M25: 3,203,040 km (0.115 R)
• M26: 3,329,600 km (0.075 R)
• M27: 3,522,880 km (0.096 R)
• M28: 3,624,008 km (0.116 R)
• M29: 3,780,488 km (0.04 R)
• M30: 3,945,345 km (0.12 R)
• M31: 4,238,108 km (0.061 R)
• M32: 4,403,264 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.6

Radius: 9.2

Gravity: 8.95 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.7 AU - 0.72 AU

Year: 421 Days

Day: 7.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (50)

Outer Limit: 39,409,994 km

• M1: 129,851 km (0.105 R)
• M2: 207,343 km (0.084 R)
• M3: 283,937 km (0.049 R)
• M4: 352,752 km (0.105 R)
• M5: 435,779 km (0.044 R)
• M6: 578,495 km (0.082 R)
• M7: 676,182 km (0.119 R)
• M8: 880,533 km (0.084 R)
• M9: 948,600 km (0.11 R)
• M10: 1,070,971 km (0.079 R)
• M11: 1,153,998 km (0.115 R)
• M12: 1,290,431 km (0.098 R)
• M13: 1,358,199 km (0.073 R)
• M14: 1,470,098 km (0.065 R)
• M15: 1,530,087 km (0.094 R)
• M16: 1,596,359 km (0.086 R)
• M17: 1,789,789 km (0.059 R)
• M18: 1,913,058 km (0.097 R)
• M19: 1,972,897 km (0.045 R)
• M20: 2,063,703 km (0.077 R)
• M21: 2,168,421 km (0.094 R)
• M22: 2,237,087 km (0.099 R)
• M23: 2,467,168 km (0.12 R)
• M24: 2,538,975 km (0.079 R)
• M25: 2,644,890 km (0.04 R)
• M26: 2,731,807 km (0.081 R)
• M27: 2,978,045 km (0.115 R)
• M28: 3,167,436 km (0.111 R)
• M29: 3,455,262 km (0.066 R)
• M30: 3,513,904 km (0.043 R)
• M31: 3,609,946 km (0.081 R)
• M32: 3,751,765 km (0.114 R)
• M33: 3,842,272 km (0.101 R)
• M34: 3,933,526 km (0.086 R)
• M35: 3,994,862 km (0.107 R)
• M36: 4,211,778 km (0.059 R)
• M37: 4,290,317 km (0.099 R)
• M38: 4,361,376 km (0.088 R)
• M39: 4,448,592 km (0.097 R)
• M40: 4,512,620 km (0.102 R)
• M41: 4,576,797 km (0.085 R)
• M42: 4,697,972 km (0.071 R)
• M43: 4,902,322 km (0.056 R)
• M44: 4,976,672 km (0.06 R)
• M45: 5,311,622 km (0.117 R)
• M46: 5,387,917 km (0.101 R)
• M47: 5,524,649 km (0.115 R)
• M48: 5,662,429 km (0.12 R)
• M49: 5,862,591 km (0.103 R)
• M50: 5,994,387 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.5

Radius: 11.7

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.89 AU - 1.35 AU

Year: 833 Days

Day: 7.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (52)

Outer Limit: 39,409,994 km

• M1: 147,952 km (0.098 R)
• M2: 290,669 km (0.078 R)
• M3: 418,874 km (0.11 R)
• M4: 536,308 km (0.072 R)
• M5: 688,749 km (0.096 R)
• M6: 774,019 km (0.062 R)
• M7: 893,997 km (0.119 R)
• M8: 969,245 km (0.104 R)
• M9: 1,167,462 km (0.048 R)
• M10: 1,250,638 km (0.105 R)
• M11: 1,460,524 km (0.093 R)
• M12: 1,682,228 km (0.061 R)
• M13: 1,964,669 km (0.091 R)
• M14: 2,056,522 km (0.097 R)
• M15: 2,279,872 km (0.095 R)
• M16: 2,611,680 km (0.101 R)
• M17: 2,920,749 km (0.083 R)
• M18: 3,007,067 km (0.037 R)
• M19: 3,094,282 km (0.029 R)
• M20: 3,261,533 km (0.115 R)
• M21: 3,381,361 km (0.08 R)
• M22: 3,461,994 km (0.083 R)
• M23: 3,781,086 km (0.03 R)
• M24: 3,875,482 km (0.097 R)
• M25: 3,981,248 km (0.106 R)
• M26: 4,152,687 km (0.093 R)
• M27: 4,261,146 km (0.12 R)
• M28: 4,580,836 km (0.11 R)
• M29: 4,681,665 km (0.106 R)
• M30: 4,772,022 km (0.059 R)
• M31: 4,885,717 km (0.048 R)
• M32: 4,977,271 km (0.087 R)
• M33: 5,080,942 km (0.113 R)
• M34: 5,267,191 km (0.086 R)
• M35: 5,503,257 km (0.055 R)
• M36: 5,634,604 km (0.094 R)
• M37: 5,900,290 km (0.073 R)
• M38: 6,381,546 km (0.045 R)
• M39: 6,952,711 km (0.05 R)
• M40: 7,043,068 km (0.097 R)
• M41: 7,303,368 km (0.067 R)
• M42: 7,395,221 km (0.113 R)
• M43: 7,606,603 km (0.114 R)
• M44: 7,713,117 km (0.086 R)
• M45: 7,860,321 km (0.106 R)
• M46: 8,021,887 km (0.041 R)
• M47: 8,157,422 km (0.05 R)
• M48: 8,252,866 km (0.111 R)
• M49: 8,610,255 km (0.091 R)
• M50: 8,818,794 km (0.099 R)
• M51: 9,085,378 km (0.072 R)
• M52: 9,626,473 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960

Radius: 9.9

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.92 AU - 1.32 AU

Year: 833 Days

Day: 5 Hours

Environment

Temp: -175 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 39,409,994 km

• M1: 124,017 km (0.067 R)
• M2: 369,208 km (0.099 R)
• M3: 438,023 km (0.09 R)
• M4: 507,137 km (0.11 R)
• M5: 607,966 km (0.112 R)
• M6: 692,937 km (0.076 R)
• M7: 940,671 km (0.089 R)
• M8: 1,007,093 km (0.073 R)
• M9: 1,082,191 km (0.095 R)
• M10: 1,296,864 km (0.101 R)
• M11: 1,432,549 km (0.115 R)
• M12: 1,533,528 km (0.101 R)
• M13: 1,809,237 km (0.093 R)
• M14: 1,893,460 km (0.043 R)
• M15: 2,109,629 km (0.051 R)
• M16: 2,171,712 km (0.062 R)
• M17: 2,270,447 km (0.108 R)
• M18: 2,352,427 km (0.115 R)
• M19: 2,444,579 km (0.03 R)
• M20: 2,547,502 km (0.025 R)
• M21: 2,613,774 km (0.086 R)
• M22: 2,719,091 km (0.12 R)
• M23: 2,796,583 km (0.112 R)
• M24: 2,953,810 km (0.052 R)
• M25: 3,023,523 km (0.108 R)
• M26: 3,215,606 km (0.068 R)
• M27: 3,339,024 km (0.087 R)
• M28: 3,761,938 km (0.025 R)
• M29: 3,979,752 km (0.07 R)
• M30: 4,090,155 km (0.084 R)
• M31: 4,190,536 km (0.111 R)
• M32: 4,314,253 km (0.115 R)
• M33: 4,739,560 km (0.117 R)
• M34: 5,106,224 km (0.079 R)
• M35: 5,359,942 km (0.092 R)
• M36: 5,469,897 km (0.073 R)
• M37: 5,692,199 km (0.098 R)
• M38: 5,791,831 km (0.056 R)
• M39: 5,904,778 km (0.096 R)
• M40: 6,031,188 km (0.062 R)
• M41: 6,350,878 km (0.051 R)
• M42: 6,532,490 km (0.088 R)
• M43: 7,047,107 km (0.096 R)
• M44: 7,208,224 km (0.104 R)
• M45: 7,574,888 km (0.109 R)
• M46: 7,698,606 km (0.074 R)
• M47: 7,767,570 km (0.104 R)
• M48: 7,892,185 km (0.083 R)
• M49: 8,003,636 km (0.106 R)
• M50: 8,087,410 km (0.102 R)
• M51: 8,157,572 km (0.086 R)
• M52: 8,326,767 km (0.038 R)
• M53: 8,440,162 km (0.088 R)
• M54: 8,539,794 km (0.08 R)
• M55: 8,654,237 km (0.114 R)
• M56: 8,740,256 km (0.112 R)
• M57: 8,841,234 km (0.034 R)
• M58: 9,513,527 km (0.087 R)
• M59: 9,721,318 km (0.114 R)
• M60: 9,915,796 km (0.098 R)
• M61: 10,051,182 km (0.087 R)
• M62: 10,187,166 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.3

Radius: 11

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.54 AU - 1.78 AU

Year: 1503 Days

Day: 12.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (69)

Outer Limit: 39,409,994 km

• M1: 158,424 km (0.118 R)
• M2: 240,553 km (0.119 R)
• M3: 356,492 km (0.042 R)
• M4: 472,879 km (0.068 R)
• M5: 597,943 km (0.076 R)
• M6: 698,024 km (0.074 R)
• M7: 773,421 km (0.107 R)
• M8: 1,009,337 km (0.065 R)
• M9: 1,096,403 km (0.106 R)
• M10: 1,334,862 km (0.054 R)
• M11: 1,421,479 km (0.098 R)
• M12: 1,610,720 km (0.031 R)
• M13: 1,734,587 km (0.046 R)
• M14: 1,851,124 km (0.069 R)
• M15: 1,959,433 km (0.109 R)
• M16: 2,036,476 km (0.084 R)
• M17: 2,114,566 km (0.071 R)
• M18: 2,216,592 km (0.107 R)
• M19: 2,496,788 km (0.115 R)
• M20: 2,592,830 km (0.101 R)
• M21: 2,825,754 km (0.089 R)
• M22: 2,900,852 km (0.059 R)
• M23: 2,976,549 km (0.11 R)
• M24: 3,312,546 km (0.08 R)
• M25: 3,458,404 km (0.095 R)
• M26: 3,606,356 km (0.089 R)
• M27: 3,742,789 km (0.086 R)
• M28: 3,908,693 km (0.08 R)
• M29: 3,978,705 km (0.03 R)
• M30: 4,063,078 km (0.118 R)
• M31: 4,348,960 km (0.067 R)
• M32: 4,523,540 km (0.092 R)
• M33: 4,656,084 km (0.081 R)
• M34: 5,016,017 km (0.106 R)
• M35: 5,214,683 km (0.096 R)
• M36: 5,400,483 km (0.117 R)
• M37: 5,699,080 km (0.081 R)
• M38: 5,778,667 km (0.043 R)
• M39: 6,019,370 km (0.087 R)
• M40: 6,116,608 km (0.091 R)
• M41: 6,279,819 km (0.09 R)
• M42: 6,411,466 km (0.057 R)
• M43: 6,560,615 km (0.064 R)
• M44: 6,660,696 km (0.119 R)
• M45: 6,913,217 km (0.113 R)
• M46: 7,203,287 km (0.082 R)
• M47: 7,375,773 km (0.08 R)
• M48: 7,445,187 km (0.075 R)
• M49: 7,602,115 km (0.116 R)
• M50: 7,689,779 km (0.049 R)
• M51: 7,760,090 km (0.072 R)
• M52: 7,954,717 km (0.066 R)
• M53: 8,294,753 km (0.104 R)
• M54: 8,731,130 km (0.106 R)
• M55: 9,100,487 km (0.063 R)
• M56: 9,268,336 km (0.088 R)
• M57: 9,456,081 km (0.106 R)
• M58: 9,778,166 km (0.086 R)
• M59: 10,433,255 km (0.056 R)
• M60: 10,569,838 km (0.058 R)
• M61: 10,726,766 km (0.04 R)
• M62: 10,884,442 km (0.074 R)
• M63: 11,122,302 km (0.099 R)
• M64: 11,583,214 km (0.098 R)
• M65: 12,234,862 km (0.112 R)
• M66: 12,773,265 km (0.113 R)
• M67: 12,919,422 km (0.032 R)
• M68: 13,488,791 km (0.117 R)
• M69: 14,412,408 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354

Radius: 11.7

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.02 AU - 2.92 AU

Year: 2729 Days

Day: 5.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (66)

Outer Limit: 39,409,994 km

• M1: 146,008 km (0.114 R)
• M2: 237,262 km (0.096 R)
• M3: 352,303 km (0.11 R)
• M4: 637,437 km (0.12 R)
• M5: 738,565 km (0.077 R)
• M6: 837,299 km (0.114 R)
• M7: 1,040,154 km (0.052 R)
• M8: 1,220,270 km (0.083 R)
• M9: 1,299,407 km (0.044 R)
• M10: 1,380,340 km (0.077 R)
• M11: 1,484,160 km (0.094 R)
• M12: 1,623,137 km (0.096 R)
• M13: 1,789,041 km (0.09 R)
• M14: 1,984,117 km (0.047 R)
• M15: 2,222,725 km (0.094 R)
• M16: 2,521,622 km (0.116 R)
• M17: 2,807,054 km (0.073 R)
• M18: 3,144,248 km (0.09 R)
• M19: 3,409,335 km (0.083 R)
• M20: 3,754,757 km (0.085 R)
• M21: 3,902,111 km (0.073 R)
• M22: 4,526,233 km (0.103 R)
• M23: 4,762,299 km (0.061 R)
• M24: 5,083,635 km (0.117 R)
• M25: 5,378,941 km (0.077 R)
• M26: 5,511,934 km (0.116 R)
• M27: 5,679,782 km (0.033 R)
• M28: 6,003,512 km (0.097 R)
• M29: 6,107,034 km (0.045 R)
• M30: 6,193,651 km (0.091 R)
• M31: 6,298,220 km (0.103 R)
• M32: 6,491,500 km (0.094 R)
• M33: 6,830,040 km (0.105 R)
• M34: 7,137,763 km (0.07 R)
• M35: 7,321,021 km (0.102 R)
• M36: 7,955,615 km (0.118 R)
• M37: 8,050,310 km (0.082 R)
• M38: 8,126,456 km (0.077 R)
• M39: 8,317,941 km (0.12 R)
• M40: 8,763,742 km (0.109 R)
• M41: 8,842,132 km (0.095 R)
• M42: 9,078,496 km (0.056 R)
• M43: 9,157,783 km (0.086 R)
• M44: 9,377,094 km (0.12 R)
• M45: 9,902,182 km (0.027 R)
• M46: 10,457,789 km (0.095 R)
• M47: 10,645,085 km (0.079 R)
• M48: 10,728,860 km (0.109 R)
• M49: 10,833,728 km (0.111 R)
• M50: 10,917,802 km (0.052 R)
• M51: 11,065,605 km (0.097 R)
• M52: 11,235,398 km (0.04 R)
• M53: 11,406,090 km (0.095 R)
• M54: 11,513,052 km (0.073 R)
• M55: 11,598,921 km (0.027 R)
• M56: 11,706,632 km (0.107 R)
• M57: 12,823,978 km (0.096 R)
• M58: 13,181,517 km (0.078 R)
• M59: 13,316,454 km (0.056 R)
• M60: 13,519,758 km (0.041 R)
• M61: 15,206,175 km (0.085 R)
• M62: 15,537,235 km (0.103 R)
• M63: 15,846,753 km (0.055 R)
• M64: 15,942,346 km (0.117 R)
• M65: 16,062,174 km (0.104 R)
• M66: 16,182,301 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.9

Radius: 5.2

Gravity: 8.13 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 6.42 AU - 7.68 AU

Year: 13158 Days

Day: 24.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 39,409,994 km

• M1: 71,059 km (0.046 R)
• M2: 136,882 km (0.112 R)
• M3: 427,850 km (0.09 R)
• M4: 517,758 km (0.117 R)
• M5: 586,124 km (0.054 R)
• M6: 889,060 km (0.113 R)
• M7: 1,005,447 km (0.106 R)
• M8: 1,271,731 km (0.112 R)
• M9: 1,539,362 km (0.106 R)
• M10: 1,741,319 km (0.107 R)
• M11: 2,016,280 km (0.092 R)
• M12: 2,170,067 km (0.066 R)
• M13: 2,237,087 km (0.116 R)
• M14: 2,512,347 km (0.056 R)
• M15: 3,094,432 km (0.067 R)
• M16: 3,400,659 km (0.119 R)
• M17: 3,743,388 km (0.086 R)
• M18: 3,905,252 km (0.108 R)
• M19: 4,097,037 km (0.094 R)
• M20: 4,376,336 km (0.068 R)
• M21: 5,311,024 km (0.095 R)
• M22: 5,894,156 km (0.119 R)
• M23: 6,050,935 km (0.076 R)
• M24: 6,562,111 km (0.026 R)
• M25: 6,594,573 km (0.083 R)
• M26: 6,659,499 km (0.072 R)
• M27: 6,987,567 km (0.111 R)
• M28: 7,727,777 km (0.086 R)
• M29: 8,211,577 km (0.113 R)
• M30: 8,281,589 km (0.105 R)
• M31: 8,386,756 km (0.099 R)
• M32: 8,740,854 km (0.112 R)
• M33: 8,991,730 km (0.116 R)
• M34: 9,208,497 km (0.096 R)
• M35: 9,721,169 km (0.086 R)
• M36: 9,795,220 km (0.092 R)
• M37: 10,318,364 km (0.093 R)
• M38: 10,356,212 km (0.062 R)
• M39: 10,812,336 km (0.089 R)
• M40: 11,548,058 km (0.105 R)
• M41: 12,021,086 km (0.072 R)
• M42: 12,500,398 km (0.104 R)
• M43: 12,580,882 km (0.04 R)
• M44: 12,863,921 km (0.117 R)
• M45: 13,108,214 km (0.077 R)
• M46: 13,477,571 km (0.09 R)
• M47: 14,268,495 km (0.052 R)
• M48: 14,521,316 km (0.076 R)
• M49: 14,818,267 km (0.088 R)
• M50: 16,069,504 km (0.073 R)
• M51: 16,508,723 km (0.065 R)
• M52: 16,863,121 km (0.063 R)
• M53: 17,175,032 km (0.098 R)
• M54: 17,534,067 km (0.064 R)
• M55: 17,804,839 km (0.116 R)
• M56: 18,168,213 km (0.038 R)
• M57: 18,213,690 km (0.101 R)
• M58: 18,671,609 km (0.114 R)
• M59: 19,319,069 km (0.085 R)
• M60: 19,505,468 km (0.12 R)
• M61: 19,786,114 km (0.101 R)
• M62: 20,969,582 km (0.106 R)
• M63: 22,127,320 km (0.111 R)
• M64: 22,175,940 km (0.099 R)
• M65: 22,566,689 km (0.098 R)
• M66: 22,615,757 km (0.1 R)
• M67: 24,002,230 km (0.063 R)
• M68: 24,554,396 km (0.084 R)
• M69: 24,604,811 km (0.047 R)
• M70: 25,263,191 km (0.113 R)
• M71: 25,365,067 km (0.11 R)
• M72: 25,671,294 km (0.072 R)
• M73: 25,824,931 km (0.08 R)
• M74: 26,132,953 km (0.1 R)
• M75: 27,273,038 km (0.115 R)
• M76: 27,639,254 km (0.084 R)
• M77: 28,006,965 km (0.117 R)
• M78: 28,165,090 km (0.109 R)
• M79: 29,173,380 km (0.104 R)
• M80: 29,816,202 km (0.075 R)
• M81: 30,572,120 km (0.057 R)
• M82: 31,553,332 km (0.119 R)
• M83: 31,882,597 km (0.078 R)
• M84: 32,047,753 km (0.096 R)
• M85: 33,155,675 km (0.061 R)
• M86: 33,658,324 km (0.084 R)
• M87: 33,770,373 km (0.088 R)
• M88: 35,010,988 km (0.069 R)
• M89: 35,181,230 km (0.097 R)
• M90: 37,478,605 km (0.113 R)
• M91: 37,943,854 km (0.084 R)
• M92: 38,410,899 km (0.041 R)
• M93: 38,762,603 km (0.11 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: 538 - 17,557 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit