🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.47 AU - 0.59 AU

Year: 249 Days

Day: 34.6 Hours

Environment

Temp: -116 °C

Axial Tilt: 44.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.89 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16

Radius: 8.1

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.99 AU - 1.49 AU

Year: 892 Days

Day: 8.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 74,289,216 km

• M1: 101,128 km (0.114 R)
• M2: 166,054 km (0.116 R)
• M3: 224,247 km (0.104 R)
• M4: 308,620 km (0.089 R)
• M5: 376,239 km (0.115 R)
• M6: 455,974 km (0.104 R)
• M7: 566,378 km (0.061 R)
• M8: 634,445 km (0.113 R)
• M9: 688,749 km (0.066 R)
• M10: 769,531 km (0.064 R)
• M11: 914,342 km (0.089 R)
• M12: 1,065,586 km (0.025 R)
• M13: 1,128,417 km (0.071 R)
• M14: 1,240,166 km (0.085 R)
• M15: 1,355,506 km (0.081 R)
• M16: 1,471,445 km (0.101 R)
• M17: 1,522,607 km (0.037 R)
• M18: 1,577,659 km (0.119 R)
• M19: 1,838,857 km (0.101 R)
• M20: 1,932,505 km (0.106 R)
• M21: 1,985,313 km (0.063 R)
• M22: 2,042,161 km (0.096 R)
• M23: 2,103,047 km (0.098 R)
• M24: 2,168,272 km (0.102 R)
• M25: 2,234,244 km (0.083 R)
• M26: 2,485,718 km (0.083 R)
• M27: 2,636,363 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.7

Radius: 14.2

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.33 AU - 1.45 AU

Year: 1058 Days

Day: 5.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 74,289,216 km

• M1: 176,974 km (0.107 R)
• M2: 287,527 km (0.067 R)
• M3: 398,230 km (0.108 R)
• M4: 609,312 km (0.093 R)
• M5: 778,059 km (0.101 R)
• M6: 869,164 km (0.09 R)
• M7: 964,457 km (0.119 R)
• M8: 1,166,863 km (0.049 R)
• M9: 1,281,605 km (0.055 R)
• M10: 1,498,223 km (0.103 R)
• M11: 1,709,904 km (0.117 R)
• M12: 2,088,536 km (0.07 R)
• M13: 2,544,061 km (0.055 R)
• M14: 2,645,040 km (0.074 R)
• M15: 2,737,192 km (0.111 R)
• M16: 2,861,658 km (0.12 R)
• M17: 3,020,231 km (0.115 R)
• M18: 3,312,845 km (0.109 R)
• M19: 3,479,646 km (0.083 R)
• M20: 3,615,033 km (0.093 R)
• M21: 3,717,806 km (0.101 R)
• M22: 3,973,170 km (0.114 R)
• M23: 4,150,593 km (0.067 R)
• M24: 4,282,538 km (0.032 R)
• M25: 4,415,680 km (0.105 R)
• M26: 4,624,519 km (0.11 R)
• M27: 4,798,950 km (0.09 R)
• M28: 4,950,194 km (0.09 R)
• M29: 5,090,217 km (0.083 R)
• M30: 5,270,483 km (0.075 R)
• M31: 5,610,967 km (0.114 R)
• M32: 5,823,995 km (0.086 R)
• M33: 5,972,097 km (0.099 R)
• M34: 6,080,555 km (0.068 R)
• M35: 6,299,566 km (0.117 R)
• M36: 6,633,020 km (0.071 R)
• M37: 6,731,306 km (0.092 R)
• M38: 6,958,096 km (0.093 R)
• M39: 7,273,897 km (0.097 R)
• M40: 7,535,843 km (0.101 R)
• M41: 7,949,481 km (0.113 R)
• M42: 8,099,079 km (0.084 R)
• M43: 8,310,012 km (0.113 R)
• M44: 8,938,473 km (0.1 R)
• M45: 9,203,560 km (0.068 R)
• M46: 9,360,788 km (0.118 R)
• M47: 9,455,483 km (0.119 R)
• M48: 9,725,657 km (0.1 R)
• M49: 10,046,843 km (0.049 R)
• M50: 10,143,932 km (0.071 R)
• M51: 10,289,940 km (0.12 R)
• M52: 10,502,369 km (0.079 R)
• M53: 10,848,389 km (0.051 R)
• M54: 11,097,918 km (0.099 R)
• M55: 11,399,956 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.2

Radius: 11.9

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.62 AU - 2.2 AU

Year: 1704 Days

Day: 10 Hours

Environment

Temp: -195 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 74,289,216 km

• M1: 150,047 km (0.043 R)
• M2: 242,049 km (0.061 R)
• M3: 429,795 km (0.115 R)
• M4: 530,175 km (0.107 R)
• M5: 614,847 km (0.086 R)
• M6: 793,617 km (0.117 R)
• M7: 893,548 km (0.041 R)
• M8: 1,233,135 km (0.115 R)
• M9: 1,364,033 km (0.116 R)
• M10: 1,468,602 km (0.083 R)
• M11: 1,567,187 km (0.097 R)
• M12: 1,654,104 km (0.081 R)
• M13: 1,964,070 km (0.081 R)
• M14: 2,113,668 km (0.099 R)
• M15: 2,261,770 km (0.118 R)
• M16: 2,552,588 km (0.096 R)
• M17: 2,699,793 km (0.12 R)
• M18: 2,822,014 km (0.107 R)
• M19: 2,951,716 km (0.042 R)
• M20: 3,089,196 km (0.097 R)
• M21: 3,187,781 km (0.07 R)
• M22: 3,317,183 km (0.08 R)
• M23: 3,418,311 km (0.118 R)
• M24: 3,520,636 km (0.105 R)
• M25: 3,678,911 km (0.086 R)
• M26: 3,759,095 km (0.053 R)
• M27: 4,091,651 km (0.088 R)
• M28: 4,375,139 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.3

Radius: 10.2

Gravity: 8.52 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.74 AU - 2.82 AU

Year: 2223 Days

Day: 14.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 74,289,216 km

• M1: 131,646 km (0.099 R)
• M2: 216,019 km (0.049 R)
• M3: 320,887 km (0.075 R)
• M4: 385,963 km (0.032 R)
• M5: 487,091 km (0.057 R)
• M6: 640,877 km (0.102 R)
• M7: 869,313 km (0.096 R)
• M8: 978,370 km (0.09 R)
• M9: 1,050,327 km (0.104 R)
• M10: 1,189,004 km (0.063 R)
• M11: 1,255,126 km (0.076 R)
• M12: 1,520,662 km (0.101 R)
• M13: 1,728,603 km (0.058 R)
• M14: 2,254,440 km (0.11 R)
• M15: 2,478,238 km (0.036 R)
• M16: 2,578,618 km (0.063 R)
• M17: 2,680,195 km (0.09 R)
• M18: 2,798,079 km (0.12 R)
• M19: 2,872,578 km (0.119 R)
• M20: 2,962,935 km (0.082 R)
• M21: 3,413,075 km (0.104 R)
• M22: 3,508,968 km (0.05 R)
• M23: 3,573,444 km (0.106 R)
• M24: 3,785,574 km (0.081 R)
• M25: 3,985,138 km (0.108 R)
• M26: 4,675,083 km (0.105 R)
• M27: 5,721,670 km (0.087 R)
• M28: 6,281,315 km (0.042 R)
• M29: 6,359,854 km (0.1 R)
• M30: 6,617,462 km (0.049 R)
• M31: 6,697,497 km (0.076 R)
• M32: 6,777,681 km (0.028 R)
• M33: 6,979,937 km (0.099 R)
• M34: 7,183,989 km (0.081 R)
• M35: 7,473,162 km (0.116 R)
• M36: 7,914,176 km (0.078 R)
• M37: 8,169,839 km (0.116 R)
• M38: 8,298,792 km (0.069 R)
• M39: 8,624,018 km (0.086 R)
• M40: 8,777,356 km (0.118 R)
• M41: 8,865,319 km (0.113 R)
• M42: 8,975,723 km (0.093 R)
• M43: 9,086,575 km (0.109 R)
• M44: 9,376,795 km (0.107 R)
• M45: 9,511,881 km (0.035 R)
• M46: 9,966,659 km (0.084 R)
• M47: 10,081,550 km (0.117 R)
• M48: 10,312,380 km (0.094 R)
• M49: 10,451,805 km (0.092 R)
• M50: 10,709,113 km (0.071 R)
• M51: 10,779,574 km (0.118 R)
• M52: 10,873,820 km (0.097 R)
• M53: 11,134,570 km (0.114 R)
• M54: 11,445,284 km (0.076 R)
• M55: 11,807,461 km (0.027 R)
• M56: 12,099,775 km (0.119 R)
• M57: 12,518,200 km (0.117 R)
• M58: 12,816,349 km (0.094 R)
• M59: 13,066,626 km (0.066 R)
• M60: 13,242,852 km (0.114 R)
• M61: 13,521,254 km (0.079 R)
• M62: 14,628,129 km (0.082 R)
• M63: 14,968,464 km (0.093 R)
• M64: 16,274,902 km (0.101 R)
• M65: 16,600,427 km (0.094 R)
• M66: 16,982,799 km (0.118 R)
• M67: 17,395,839 km (0.047 R)
• M68: 17,951,744 km (0.089 R)
• M69: 18,035,519 km (0.093 R)
• M70: 18,259,916 km (0.091 R)
• M71: 18,456,936 km (0.069 R)
• M72: 18,654,705 km (0.075 R)
• M73: 18,824,798 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.3

Radius: 8.9

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.88 AU - 3.3 AU

Year: 3507 Days

Day: 8.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 74,289,216 km

• M1: 120,277 km (0.08 R)
• M2: 217,665 km (0.051 R)
• M3: 354,996 km (0.086 R)
• M4: 568,173 km (0.081 R)
• M5: 801,695 km (0.075 R)
• M6: 924,664 km (0.103 R)
• M7: 1,132,605 km (0.032 R)
• M8: 1,213,089 km (0.064 R)
• M9: 1,404,574 km (0.103 R)
• M10: 1,516,623 km (0.116 R)
• M11: 1,593,068 km (0.069 R)
• M12: 2,397,904 km (0.098 R)
• M13: 2,457,594 km (0.091 R)
• M14: 2,532,842 km (0.106 R)
• M15: 2,639,654 km (0.096 R)
• M16: 3,212,165 km (0.057 R)
• M17: 3,461,994 km (0.095 R)
• M18: 3,666,494 km (0.034 R)
• M19: 3,945,195 km (0.101 R)
• M20: 4,051,559 km (0.115 R)
• M21: 4,123,067 km (0.052 R)
• M22: 4,249,028 km (0.087 R)
• M23: 4,376,336 km (0.093 R)
• M24: 4,504,990 km (0.105 R)
• M25: 4,766,039 km (0.096 R)
• M26: 4,822,587 km (0.062 R)
• M27: 5,128,215 km (0.105 R)
• M28: 5,244,453 km (0.037 R)
• M29: 5,381,185 km (0.054 R)
• M30: 5,479,471 km (0.104 R)
• M31: 5,678,137 km (0.076 R)
• M32: 5,758,172 km (0.102 R)
• M33: 5,818,609 km (0.105 R)
• M34: 5,980,474 km (0.076 R)
• M35: 6,205,619 km (0.09 R)
• M36: 6,350,280 km (0.1 R)
• M37: 6,475,194 km (0.03 R)
• M38: 6,579,913 km (0.115 R)
• M39: 6,664,136 km (0.064 R)
• M40: 6,961,687 km (0.098 R)
• M41: 7,133,574 km (0.114 R)
• M42: 7,635,924 km (0.07 R)
• M43: 8,262,889 km (0.057 R)
• M44: 8,399,322 km (0.064 R)
• M45: 8,513,615 km (0.093 R)
• M46: 8,628,506 km (0.106 R)
• M47: 9,423,170 km (0.064 R)
• M48: 9,541,951 km (0.068 R)
• M49: 9,685,265 km (0.051 R)
• M50: 10,289,790 km (0.089 R)
• M51: 10,757,433 km (0.116 R)
• M52: 10,831,933 km (0.037 R)
• M53: 11,131,578 km (0.072 R)
• M54: 11,408,633 km (0.114 R)
• M55: 11,637,069 km (0.047 R)
• M56: 13,652,451 km (0.036 R)
• M57: 13,867,872 km (0.089 R)
• M58: 14,111,717 km (0.111 R)
• M59: 14,302,304 km (0.11 R)
• M60: 14,879,303 km (0.056 R)
• M61: 14,990,006 km (0.111 R)
• M62: 15,296,083 km (0.081 R)
• M63: 16,198,009 km (0.104 R)
• M64: 16,312,002 km (0.104 R)
• M65: 16,741,647 km (0.069 R)
• M66: 17,233,226 km (0.107 R)
• M67: 18,497,627 km (0.109 R)
• M68: 18,736,236 km (0.075 R)
• M69: 19,276,583 km (0.064 R)
• M70: 19,609,438 km (0.076 R)
• M71: 19,730,912 km (0.059 R)
• M72: 19,791,649 km (0.037 R)
• M73: 20,219,349 km (0.059 R)
• M74: 20,588,257 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.5

Radius: 11.9

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.77 AU - 3.83 AU

Year: 3871 Days

Day: 5.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (63)

Outer Limit: 74,289,216 km

• M1: 257,608 km (0.093 R)
• M2: 444,156 km (0.058 R)
• M3: 675,285 km (0.096 R)
• M4: 899,083 km (0.091 R)
• M5: 1,035,367 km (0.118 R)
• M6: 1,189,752 km (0.069 R)
• M7: 1,297,014 km (0.093 R)
• M8: 1,419,085 km (0.054 R)
• M9: 1,522,009 km (0.117 R)
• M10: 1,663,229 km (0.104 R)
• M11: 1,747,752 km (0.091 R)
• M12: 1,997,431 km (0.112 R)
• M13: 2,074,773 km (0.104 R)
• M14: 2,192,506 km (0.068 R)
• M15: 2,448,768 km (0.107 R)
• M16: 2,700,690 km (0.059 R)
• M17: 3,184,490 km (0.056 R)
• M18: 3,321,222 km (0.067 R)
• M19: 3,444,491 km (0.11 R)
• M20: 3,727,381 km (0.065 R)
• M21: 4,484,795 km (0.097 R)
• M22: 5,128,065 km (0.103 R)
• M23: 5,397,192 km (0.075 R)
• M24: 5,819,058 km (0.113 R)
• M25: 5,949,507 km (0.101 R)
• M26: 6,232,546 km (0.099 R)
• M27: 6,385,286 km (0.107 R)
• M28: 6,462,030 km (0.101 R)
• M29: 6,558,670 km (0.078 R)
• M30: 6,752,997 km (0.088 R)
• M31: 6,969,166 km (0.09 R)
• M32: 7,267,614 km (0.061 R)
• M33: 7,367,994 km (0.114 R)
• M34: 7,448,628 km (0.057 R)
• M35: 7,529,710 km (0.106 R)
• M36: 8,566,423 km (0.025 R)
• M37: 8,651,394 km (0.091 R)
• M38: 8,779,301 km (0.104 R)
• M39: 8,950,740 km (0.117 R)
• M40: 9,559,603 km (0.108 R)
• M41: 10,092,321 km (0.062 R)
• M42: 10,317,167 km (0.104 R)
• M43: 10,589,136 km (0.065 R)
• M44: 10,909,425 km (0.109 R)
• M45: 11,047,653 km (0.098 R)
• M46: 11,771,408 km (0.102 R)
• M47: 11,984,285 km (0.115 R)
• M48: 12,824,726 km (0.061 R)
• M49: 12,921,965 km (0.037 R)
• M50: 13,043,887 km (0.086 R)
• M51: 13,436,731 km (0.086 R)
• M52: 13,908,114 km (0.119 R)
• M53: 13,983,063 km (0.085 R)
• M54: 14,233,789 km (0.116 R)
• M55: 14,334,618 km (0.099 R)
• M56: 14,892,917 km (0.117 R)
• M57: 15,046,404 km (0.096 R)
• M58: 15,821,770 km (0.118 R)
• M59: 16,109,447 km (0.108 R)
• M60: 16,398,769 km (0.035 R)
• M61: 16,530,864 km (0.076 R)
• M62: 16,902,465 km (0.059 R)
• M63: 17,843,884 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879.5

Radius: 4.8

Gravity: 38.17 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 6.74 AU - 10.98 AU

Year: 17028 Days

Day: 24.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 74,289,216 km

• M1: 103,223 km (0.044 R)
• M2: 157,227 km (0.115 R)
• M3: 269,575 km (0.078 R)
• M4: 318,643 km (0.073 R)
• M5: 545,733 km (0.102 R)
• M6: 721,511 km (0.032 R)
• M7: 768,335 km (0.079 R)
• M8: 939,923 km (0.081 R)
• M9: 1,289,833 km (0.081 R)
• M10: 1,434,494 km (0.077 R)
• M11: 1,707,959 km (0.113 R)
• M12: 1,866,832 km (0.098 R)
• M13: 2,267,605 km (0.111 R)
• M14: 2,694,258 km (0.037 R)
• M15: 3,340,221 km (0.097 R)
• M16: 3,741,592 km (0.046 R)
• M17: 3,948,037 km (0.113 R)
• M18: 4,371,998 km (0.101 R)
• M19: 4,989,687 km (0.098 R)
• M20: 5,216,777 km (0.036 R)
• M21: 5,447,307 km (0.102 R)
• M22: 5,634,155 km (0.078 R)
• M23: 5,966,262 km (0.095 R)
• M24: 6,110,475 km (0.09 R)
• M25: 7,356,774 km (0.11 R)
• M26: 7,719,400 km (0.108 R)
• M27: 7,876,627 km (0.103 R)
• M28: 8,140,967 km (0.12 R)
• M29: 8,247,480 km (0.095 R)
• M30: 8,841,833 km (0.099 R)
• M31: 9,006,390 km (0.083 R)
• M32: 9,227,197 km (0.109 R)
• M33: 9,338,348 km (0.113 R)
• M34: 11,175,709 km (0.076 R)
• M35: 11,772,156 km (0.095 R)
• M36: 12,317,889 km (0.108 R)
• M37: 12,379,074 km (0.086 R)
• M38: 12,747,983 km (0.111 R)
• M39: 12,871,700 km (0.058 R)
• M40: 13,686,111 km (0.071 R)
• M41: 14,971,007 km (0.106 R)
• M42: 18,908,872 km (0.114 R)
• M43: 20,771,515 km (0.063 R)
• M44: 21,136,384 km (0.112 R)
• M45: 24,207,030 km (0.083 R)
• M46: 26,777,570 km (0.076 R)
• M47: 26,936,144 km (0.049 R)
• M48: 27,573,580 km (0.049 R)
• M49: 27,974,353 km (0.106 R)
• M50: 29,025,727 km (0.092 R)
• M51: 31,835,624 km (0.09 R)
• M52: 32,087,696 km (0.087 R)
• M53: 32,424,890 km (0.094 R)
• M54: 32,593,935 km (0.117 R)
• M55: 35,077,260 km (0.074 R)
• M56: 37,001,388 km (0.079 R)
• M57: 37,089,650 km (0.062 R)
• M58: 38,511,429 km (0.1 R)
• M59: 38,600,888 km (0.033 R)
• M60: 38,959,474 km (0.071 R)
• M61: 39,679,788 km (0.118 R)
• M62: 40,768,561 km (0.077 R)
• M63: 40,950,921 km (0.116 R)
• M64: 41,959,061 km (0.114 R)
• M65: 42,143,216 km (0.101 R)
• M66: 42,235,518 km (0.049 R)
• M67: 42,789,928 km (0.051 R)
• M68: 43,812,878 km (0.06 R)
• M69: 45,220,744 km (0.112 R)
• M70: 48,176,797 km (0.063 R)
• M71: 48,562,760 km (0.066 R)
• M72: 54,172,979 km (0.107 R)
• M73: 56,392,563 km (0.11 R)
• M74: 57,718,000 km (0.037 R)
• M75: 58,538,694 km (0.06 R)
• M76: 59,466,650 km (0.105 R)
• M77: 59,570,022 km (0.095 R)
• M78: 59,673,543 km (0.075 R)
• M79: 60,191,750 km (0.036 R)
• M80: 60,607,483 km (0.112 R)
• M81: 63,755,172 km (0.049 R)
• M82: 63,966,853 km (0.028 R)
• M83: 64,709,756 km (0.081 R)
• M84: 65,242,175 km (0.094 R)
• M85: 67,063,080 km (0.105 R)
• M86: 67,494,071 km (0.048 R)
• M87: 67,709,791 km (0.038 R)
• M88: 69,335,472 km (0.053 R)
• M89: 70,207,777 km (0.112 R)
• M90: 71,193,477 km (0.118 R)
• M91: 71,303,282 km (0.082 R)
• M92: 72,625,278 km (0.09 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 17,263 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit