🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.6 AU - 0.92 AU

Year: 240 Days

Day: 14.4 Hours

Environment

Temp: 122 °C

Axial Tilt: 32.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 2.2 AU - 2.78 AU

Year: 1421 Days

Day: 46.7 Hours

Environment

Temp: -87 °C

Axial Tilt: 46.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.47 AU - 5.29 AU

Year: 3899 Days

Day: 14.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 15.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,844,180 km

• M1: 777,610 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.7

Radius: 10.2

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 7.15 AU - 8.35 AU

Year: 7803 Days

Day: 13.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 69,844,180 km

• M1: 246,986 km (0.034 R)
• M2: 396,434 km (0.069 R)
• M3: 541,993 km (0.111 R)
• M4: 622,178 km (0.096 R)
• M5: 766,091 km (0.039 R)
• M6: 889,509 km (0.095 R)
• M7: 1,157,439 km (0.098 R)
• M8: 1,913,656 km (0.063 R)
• M9: 2,041,712 km (0.113 R)
• M10: 2,172,759 km (0.111 R)
• M11: 2,306,650 km (0.105 R)
• M12: 3,091,590 km (0.074 R)
• M13: 3,818,037 km (0.116 R)
• M14: 4,062,480 km (0.096 R)
• M15: 4,453,080 km (0.101 R)
• M16: 4,739,560 km (0.109 R)
• M17: 4,826,775 km (0.056 R)
• M18: 5,270,333 km (0.054 R)
• M19: 5,976,136 km (0.109 R)
• M20: 6,356,114 km (0.104 R)
• M21: 6,516,782 km (0.082 R)
• M22: 6,842,158 km (0.12 R)
• M23: 7,273,299 km (0.078 R)
• M24: 7,340,319 km (0.119 R)
• M25: 7,542,874 km (0.112 R)
• M26: 7,644,900 km (0.107 R)
• M27: 7,850,148 km (0.075 R)
• M28: 8,939,969 km (0.106 R)
• M29: 9,120,234 km (0.104 R)
• M30: 10,189,261 km (0.118 R)
• M31: 10,681,288 km (0.099 R)
• M32: 11,570,647 km (0.025 R)
• M33: 11,925,194 km (0.079 R)
• M34: 12,243,389 km (0.093 R)
• M35: 12,725,842 km (0.112 R)
• M36: 13,419,976 km (0.09 R)
• M37: 14,505,458 km (0.051 R)
• M38: 14,590,131 km (0.068 R)
• M39: 15,575,532 km (0.118 R)
• M40: 16,273,705 km (0.099 R)
• M41: 16,538,194 km (0.108 R)
• M42: 17,745,898 km (0.091 R)
• M43: 17,881,733 km (0.076 R)
• M44: 18,889,274 km (0.091 R)
• M45: 19,167,227 km (0.115 R)
• M46: 19,446,526 km (0.091 R)
• M47: 19,539,875 km (0.078 R)
• M48: 19,820,970 km (0.072 R)
• M49: 19,962,041 km (0.104 R)
• M50: 20,767,775 km (0.092 R)
• M51: 21,054,704 km (0.117 R)
• M52: 21,198,617 km (0.093 R)
• M53: 21,342,829 km (0.105 R)
• M54: 21,439,170 km (0.079 R)
• M55: 22,166,515 km (0.115 R)
• M56: 22,901,938 km (0.088 R)
• M57: 23,099,407 km (0.062 R)
• M58: 24,095,280 km (0.095 R)
• M59: 24,547,963 km (0.117 R)
• M60: 24,851,348 km (0.097 R)
• M61: 25,257,805 km (0.104 R)
• M62: 25,666,357 km (0.101 R)
• M63: 25,820,293 km (0.085 R)
• M64: 26,490,193 km (0.077 R)
• M65: 26,645,625 km (0.041 R)
• M66: 27,322,705 km (0.101 R)
• M67: 31,447,567 km (0.062 R)
• M68: 31,722,079 km (0.095 R)
• M69: 32,494,901 km (0.118 R)
• M70: 33,162,407 km (0.078 R)
• M71: 34,002,848 km (0.114 R)
• M72: 34,850,470 km (0.112 R)
• M73: 35,362,393 km (0.082 R)
• M74: 36,163,640 km (0.065 R)
• M75: 38,720,417 km (0.056 R)
• M76: 38,838,150 km (0.07 R)
• M77: 39,191,650 km (0.082 R)
• M78: 39,368,774 km (0.106 R)
• M79: 39,546,197 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.3

Radius: 13.6

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 6.66 AU - 9.24 AU

Year: 8107 Days

Day: 11.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 69,844,180 km

• M1: 170,242 km (0.091 R)
• M2: 593,904 km (0.093 R)
• M3: 682,465 km (0.085 R)
• M4: 875,746 km (0.079 R)
• M5: 964,607 km (0.046 R)
• M6: 1,072,617 km (0.104 R)
• M7: 1,387,969 km (0.106 R)
• M8: 1,566,140 km (0.098 R)
• M9: 1,658,292 km (0.063 R)
• M10: 1,809,685 km (0.096 R)
• M11: 1,906,625 km (0.107 R)
• M12: 2,313,082 km (0.067 R)
• M13: 2,996,595 km (0.095 R)
• M14: 3,112,533 km (0.064 R)
• M15: 3,253,903 km (0.11 R)
• M16: 3,397,368 km (0.112 R)
• M17: 3,865,759 km (0.101 R)
• M18: 4,224,045 km (0.096 R)
• M19: 5,648,217 km (0.112 R)
• M20: 5,821,601 km (0.092 R)
• M21: 6,026,101 km (0.103 R)
• M22: 6,562,859 km (0.064 R)
• M23: 7,428,432 km (0.046 R)
• M24: 7,842,519 km (0.078 R)
• M25: 8,166,249 km (0.085 R)
• M26: 8,296,997 km (0.104 R)
• M27: 8,827,022 km (0.081 R)
• M28: 9,850,272 km (0.097 R)
• M29: 11,055,133 km (0.104 R)
• M30: 11,382,004 km (0.117 R)
• M31: 12,306,370 km (0.092 R)
• M32: 12,948,593 km (0.116 R)
• M33: 13,796,215 km (0.09 R)
• M34: 15,261,825 km (0.075 R)
• M35: 15,382,850 km (0.086 R)
• M36: 16,859,830 km (0.107 R)
• M37: 17,615,299 km (0.068 R)
• M38: 18,295,969 km (0.115 R)
• M39: 18,682,829 km (0.029 R)
• M40: 18,812,231 km (0.044 R)
• M41: 19,028,849 km (0.102 R)
• M42: 19,246,215 km (0.102 R)
• M43: 20,746,083 km (0.112 R)
• M44: 21,736,571 km (0.037 R)
• M45: 22,009,288 km (0.092 R)
• M46: 22,973,147 km (0.1 R)
• M47: 23,158,199 km (0.091 R)
• M48: 23,343,850 km (0.112 R)
• M49: 23,483,425 km (0.106 R)
• M50: 23,576,624 km (0.11 R)
• M51: 23,856,971 km (0.074 R)
• M52: 24,373,831 km (0.079 R)
• M53: 24,468,228 km (0.047 R)
• M54: 24,609,897 km (0.034 R)
• M55: 25,227,437 km (0.085 R)
• M56: 25,609,959 km (0.111 R)
• M57: 25,850,063 km (0.117 R)
• M58: 26,477,776 km (0.104 R)
• M59: 26,817,961 km (0.09 R)
• M60: 27,012,888 km (0.098 R)
• M61: 27,649,875 km (0.066 R)
• M62: 28,938,661 km (0.071 R)
• M63: 29,289,019 km (0.091 R)
• M64: 30,044,488 km (0.093 R)
• M65: 31,266,553 km (0.087 R)
• M66: 31,574,725 km (0.076 R)
• M67: 31,832,183 km (0.031 R)
• M68: 33,077,884 km (0.042 R)
• M69: 33,549,118 km (0.082 R)
• M70: 33,654,135 km (0.118 R)
• M71: 34,445,209 km (0.096 R)
• M72: 34,763,404 km (0.102 R)
• M73: 35,029,389 km (0.094 R)
• M74: 35,456,191 km (0.108 R)

Asteroid Belt

Center: 8.29 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 8.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.6

Radius: 12.9

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 8.28 AU - 8.98 AU

Year: 9169 Days

Day: 13.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 69,844,180 km

• M1: 161,566 km (0.092 R)
• M2: 285,433 km (0.103 R)
• M3: 751,580 km (0.109 R)
• M4: 1,812,229 km (0.111 R)
• M5: 2,144,785 km (0.048 R)
• M6: 2,565,155 km (0.08 R)
• M7: 2,680,195 km (0.055 R)
• M8: 2,867,941 km (0.049 R)
• M9: 3,060,174 km (0.115 R)
• M10: 3,157,861 km (0.056 R)
• M11: 4,004,286 km (0.103 R)
• M12: 4,165,553 km (0.068 R)
• M13: 4,301,537 km (0.061 R)
• M14: 4,494,518 km (0.055 R)
• M15: 4,578,144 km (0.042 R)
• M16: 4,946,603 km (0.115 R)
• M17: 5,178,181 km (0.095 R)
• M18: 5,442,969 km (0.112 R)
• M19: 5,562,198 km (0.115 R)
• M20: 5,772,832 km (0.054 R)
• M21: 5,924,973 km (0.097 R)
• M22: 7,124,150 km (0.1 R)
• M23: 8,156,824 km (0.115 R)
• M24: 8,534,559 km (0.032 R)
• M25: 8,638,679 km (0.103 R)
• M26: 8,777,954 km (0.11 R)
• M27: 8,953,283 km (0.037 R)
• M28: 9,521,904 km (0.107 R)
• M29: 9,702,020 km (0.104 R)
• M30: 10,029,191 km (0.091 R)
• M31: 10,139,145 km (0.106 R)
• M32: 10,396,902 km (0.059 R)
• M33: 10,769,252 km (0.093 R)
• M34: 11,989,671 km (0.081 R)
• M35: 12,145,253 km (0.109 R)
• M36: 12,774,611 km (0.073 R)
• M37: 13,657,238 km (0.108 R)
• M38: 14,024,052 km (0.112 R)
• M39: 14,767,404 km (0.097 R)
• M40: 14,850,730 km (0.05 R)
• M41: 15,608,294 km (0.094 R)
• M42: 15,821,022 km (0.106 R)
• M43: 16,335,489 km (0.034 R)
• M44: 16,681,359 km (0.103 R)
• M45: 16,942,557 km (0.061 R)
• M46: 17,424,711 km (0.067 R)
• M47: 18,537,271 km (0.067 R)
• M48: 18,898,250 km (0.088 R)
• M49: 19,125,041 km (0.054 R)
• M50: 20,318,682 km (0.065 R)
• M51: 21,678,377 km (0.099 R)
• M52: 22,874,113 km (0.048 R)
• M53: 23,261,272 km (0.101 R)
• M54: 23,748,363 km (0.109 R)
• M55: 24,238,745 km (0.096 R)
• M56: 24,485,132 km (0.119 R)
• M57: 25,429,244 km (0.12 R)
• M58: 25,529,325 km (0.104 R)
• M59: 25,780,051 km (0.099 R)
• M60: 26,435,889 km (0.079 R)
• M61: 27,199,436 km (0.092 R)
• M62: 27,455,548 km (0.074 R)
• M63: 28,125,297 km (0.1 R)
• M64: 28,332,490 km (0.054 R)
• M65: 29,113,690 km (0.046 R)
• M66: 29,218,409 km (0.097 R)
• M67: 29,849,413 km (0.099 R)
• M68: 30,113,603 km (0.075 R)
• M69: 30,378,540 km (0.093 R)
• M70: 30,484,755 km (0.049 R)
• M71: 30,804,146 km (0.11 R)
• M72: 31,017,772 km (0.081 R)
• M73: 31,338,959 km (0.08 R)
• M74: 32,201,091 km (0.088 R)
• M75: 33,070,853 km (0.088 R)
• M76: 33,563,629 km (0.062 R)
• M77: 34,003,596 km (0.104 R)
• M78: 34,279,604 km (0.106 R)
• M79: 34,722,713 km (0.11 R)
• M80: 35,446,767 km (0.111 R)
• M81: 36,007,160 km (0.104 R)
• M82: 38,048,722 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.2

Radius: 13.8

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 10.72 AU - 12.56 AU

Year: 14362 Days

Day: 13.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 150.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 69,844,180 km

• M1: 214,374 km (0.107 R)
• M2: 340,335 km (0.09 R)
• M3: 685,158 km (0.055 R)
• M4: 1,005,148 km (0.108 R)
• M5: 1,137,692 km (0.055 R)
• M6: 1,755,980 km (0.076 R)
• M7: 2,058,616 km (0.108 R)
• M8: 2,230,953 km (0.081 R)
• M9: 2,318,917 km (0.114 R)
• M10: 2,590,287 km (0.046 R)
• M11: 2,714,304 km (0.074 R)
• M12: 3,098,621 km (0.092 R)
• M13: 3,534,698 km (0.075 R)
• M14: 3,638,220 km (0.1 R)
• M15: 3,812,951 km (0.102 R)
• M16: 3,919,165 km (0.063 R)
• M17: 4,842,932 km (0.06 R)
• M18: 5,113,405 km (0.119 R)
• M19: 5,955,042 km (0.116 R)
• M20: 6,120,198 km (0.118 R)
• M21: 6,497,634 km (0.05 R)
• M22: 6,710,661 km (0.112 R)
• M23: 6,882,699 km (0.115 R)
• M24: 7,056,232 km (0.117 R)
• M25: 7,496,499 km (0.076 R)
• M26: 8,128,101 km (0.065 R)
• M27: 8,589,611 km (0.102 R)
• M28: 8,870,855 km (0.118 R)
• M29: 9,442,169 km (0.104 R)
• M30: 9,635,300 km (0.104 R)
• M31: 10,173,254 km (0.119 R)
• M32: 11,023,717 km (0.088 R)
• M33: 11,329,496 km (0.09 R)
• M34: 11,949,280 km (0.08 R)
• M35: 13,221,909 km (0.116 R)
• M36: 14,039,012 km (0.038 R)
• M37: 14,149,266 km (0.118 R)
• M38: 14,704,573 km (0.088 R)
• M39: 16,355,386 km (0.106 R)
• M40: 16,587,711 km (0.083 R)
• M41: 17,055,504 km (0.083 R)
• M42: 17,527,784 km (0.055 R)
• M43: 18,424,923 km (0.12 R)
• M44: 18,970,356 km (0.116 R)
• M45: 19,829,497 km (0.106 R)
• M46: 19,953,214 km (0.092 R)
• M47: 21,521,898 km (0.028 R)
• M48: 21,776,513 km (0.075 R)
• M49: 22,611,120 km (0.097 R)
• M50: 22,870,074 km (0.108 R)
• M51: 23,260,375 km (0.095 R)
• M52: 24,576,985 km (0.096 R)
• M53: 25,244,341 km (0.099 R)
• M54: 28,181,696 km (0.102 R)
• M55: 28,460,397 km (0.097 R)
• M56: 29,372,495 km (0.066 R)
• M57: 31,153,457 km (0.111 R)
• M58: 32,093,381 km (0.054 R)
• M59: 36,550,649 km (0.108 R)
• M60: 37,465,141 km (0.108 R)
• M61: 37,771,667 km (0.07 R)
• M62: 38,618,990 km (0.118 R)
• M63: 39,706,267 km (0.088 R)
• M64: 39,862,447 km (0.067 R)
• M65: 40,489,112 km (0.051 R)
• M66: 40,961,393 km (0.061 R)
• M67: 42,229,385 km (0.117 R)
• M68: 44,236,390 km (0.117 R)
• M69: 45,782,334 km (0.114 R)
• M70: 46,192,232 km (0.104 R)
• M71: 48,176,199 km (0.106 R)
• M72: 48,426,028 km (0.031 R)
• M73: 48,927,330 km (0.102 R)
• M74: 51,458,975 km (0.046 R)
• M75: 51,714,488 km (0.046 R)
• M76: 52,141,291 km (0.113 R)
• M77: 52,655,010 km (0.087 R)
• M78: 53,170,374 km (0.09 R)
• M79: 57,441,693 km (0.029 R)
• M80: 58,682,158 km (0.115 R)
• M81: 59,127,212 km (0.094 R)
• M82: 59,573,612 km (0.062 R)
• M83: 59,752,382 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 366

Radius: 7.7

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 15.25 AU - 17.59 AU

Year: 24063 Days

Day: 24.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 69,844,180 km

• M1: 128,205 km (0.098 R)
• M2: 176,226 km (0.056 R)
• M3: 476,469 km (0.113 R)
• M4: 696,079 km (0.062 R)
• M5: 946,805 km (0.082 R)
• M6: 1,305,391 km (0.037 R)
• M7: 1,674,000 km (0.098 R)
• M8: 1,733,540 km (0.107 R)
• M9: 1,854,864 km (0.112 R)
• M10: 2,235,591 km (0.026 R)
• M11: 2,301,414 km (0.081 R)
• M12: 2,367,835 km (0.112 R)
• M13: 2,710,115 km (0.076 R)
• M14: 2,780,426 km (0.051 R)
• M15: 2,995,099 km (0.093 R)
• M16: 3,067,953 km (0.117 R)
• M17: 3,478,898 km (0.075 R)
• M18: 3,671,431 km (0.089 R)
• M19: 3,986,783 km (0.097 R)
• M20: 4,941,517 km (0.073 R)
• M21: 5,158,135 km (0.117 R)
• M22: 5,289,631 km (0.066 R)
• M23: 5,511,335 km (0.074 R)
• M24: 7,639,215 km (0.109 R)
• M25: 8,709,887 km (0.071 R)
• M26: 9,130,108 km (0.049 R)
• M27: 9,183,065 km (0.074 R)
• M28: 9,342,686 km (0.105 R)
• M29: 9,610,616 km (0.034 R)
• M30: 10,429,814 km (0.12 R)
• M31: 10,875,915 km (0.092 R)
• M32: 13,498,665 km (0.108 R)
• M33: 13,984,559 km (0.106 R)
• M34: 15,098,614 km (0.115 R)
• M35: 15,224,276 km (0.086 R)
• M36: 15,666,338 km (0.12 R)
• M37: 15,984,832 km (0.115 R)
• M38: 16,822,580 km (0.093 R)
• M39: 16,887,655 km (0.11 R)
• M40: 18,139,340 km (0.044 R)
• M41: 19,080,610 km (0.115 R)
• M42: 19,762,776 km (0.118 R)
• M43: 20,800,686 km (0.117 R)
• M44: 21,220,907 km (0.1 R)
• M45: 21,714,580 km (0.12 R)
• M46: 21,927,308 km (0.12 R)
• M47: 23,290,892 km (0.07 R)
• M48: 25,498,957 km (0.106 R)
• M49: 26,855,660 km (0.049 R)
• M50: 26,931,805 km (0.073 R)
• M51: 29,090,353 km (0.103 R)
• M52: 30,032,371 km (0.101 R)
• M53: 32,107,593 km (0.034 R)
• M54: 32,188,226 km (0.052 R)
• M55: 32,674,120 km (0.067 R)
• M56: 34,393,598 km (0.107 R)
• M57: 34,476,176 km (0.111 R)
• M58: 35,056,316 km (0.095 R)
• M59: 36,142,247 km (0.09 R)
• M60: 36,900,559 km (0.086 R)
• M61: 37,578,985 km (0.106 R)
• M62: 37,664,106 km (0.1 R)
• M63: 37,834,349 km (0.096 R)
• M64: 39,725,415 km (0.099 R)
• M65: 39,812,182 km (0.12 R)
• M66: 39,898,799 km (0.079 R)
• M67: 40,595,177 km (0.114 R)
• M68: 40,944,788 km (0.107 R)
• M69: 43,420,034 km (0.085 R)
• M70: 44,765,966 km (0.108 R)
• M71: 45,036,738 km (0.037 R)
• M72: 47,131,108 km (0.117 R)
• M73: 48,328,789 km (0.119 R)
• M74: 48,977,894 km (0.081 R)
• M75: 50,097,335 km (0.082 R)
• M76: 50,472,227 km (0.036 R)
• M77: 51,130,757 km (0.101 R)
• M78: 55,528,336 km (0.114 R)
• M79: 57,379,759 km (0.031 R)
• M80: 57,477,895 km (0.118 R)
• M81: 60,743,168 km (0.104 R)
• M82: 64,882,990 km (0.113 R)
• M83: 65,906,539 km (0.049 R)
• M84: 66,009,163 km (0.062 R)
• M85: 66,111,937 km (0.058 R)
• M86: 67,348,363 km (0.059 R)
• M87: 68,384,627 km (0.067 R)
• M88: 68,592,419 km (0.054 R)
• M89: 68,800,510 km (0.117 R)
• M90: 69,739,535 km (0.083 R)

Kuiper Belt

Range: 30.3 - 45.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 19,208 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit