🌌 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: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.6

Radius: 9.4

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.68 AU - 0.7 AU

Year: 382 Days

Day: 13.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 46,856,982 km

• M1: 121,623 km (0.09 R)
• M2: 199,115 km (0.095 R)
• M3: 259,552 km (0.119 R)
• M4: 339,737 km (0.092 R)
• M5: 398,678 km (0.077 R)
• M6: 468,989 km (0.096 R)
• M7: 539,450 km (0.097 R)
• M8: 606,470 km (0.082 R)
• M9: 676,631 km (0.08 R)
• M10: 766,539 km (0.105 R)
• M11: 890,257 km (0.107 R)
• M12: 956,230 km (0.085 R)
• M13: 1,027,139 km (0.119 R)
• M14: 1,103,135 km (0.084 R)
• M15: 1,171,351 km (0.104 R)
• M16: 1,237,623 km (0.097 R)
• M17: 1,315,564 km (0.065 R)
• M18: 1,419,833 km (0.114 R)
• M19: 1,523,206 km (0.11 R)
• M20: 1,596,060 km (0.114 R)
• M21: 1,658,891 km (0.107 R)
• M22: 1,733,989 km (0.109 R)
• M23: 1,798,765 km (0.064 R)
• M24: 1,891,665 km (0.12 R)
• M25: 1,990,100 km (0.096 R)
• M26: 2,155,406 km (0.106 R)
• M27: 2,225,268 km (0.084 R)
• M28: 2,346,293 km (0.091 R)
• M29: 2,482,427 km (0.096 R)
• M30: 2,603,751 km (0.114 R)
• M31: 2,713,705 km (0.111 R)
• M32: 2,825,305 km (0.109 R)
• M33: 2,947,527 km (0.067 R)
• M34: 3,011,555 km (0.114 R)
• M35: 3,108,644 km (0.11 R)
• M36: 3,244,329 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.9

Radius: 14.4

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.74 AU - 1.08 AU

Year: 579 Days

Day: 6.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 113.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 46,856,982 km

• M1: 191,635 km (0.114 R)
• M2: 356,941 km (0.118 R)
• M3: 466,745 km (0.112 R)
• M4: 605,871 km (0.04 R)
• M5: 714,629 km (0.039 R)
• M6: 897,587 km (0.103 R)
• M7: 987,346 km (0.089 R)
• M8: 1,120,039 km (0.029 R)
• M9: 1,259,315 km (0.077 R)
• M10: 1,467,406 km (0.084 R)
• M11: 1,582,297 km (0.081 R)
• M12: 1,727,107 km (0.095 R)
• M13: 1,890,468 km (0.058 R)
• M14: 2,002,367 km (0.108 R)
• M15: 2,262,668 km (0.116 R)
• M16: 2,473,002 km (0.049 R)
• M17: 2,642,796 km (0.118 R)
• M18: 2,753,050 km (0.085 R)
• M19: 2,945,582 km (0.095 R)
• M20: 3,051,797 km (0.118 R)
• M21: 3,159,357 km (0.111 R)
• M22: 3,387,045 km (0.113 R)
• M23: 3,602,616 km (0.068 R)
• M24: 3,867,554 km (0.073 R)
• M25: 3,975,264 km (0.118 R)
• M26: 4,102,273 km (0.105 R)
• M27: 4,221,502 km (0.074 R)
• M28: 4,435,278 km (0.12 R)
• M29: 4,529,375 km (0.112 R)
• M30: 4,902,771 km (0.08 R)
• M31: 5,058,951 km (0.095 R)
• M32: 5,187,157 km (0.119 R)
• M33: 5,386,421 km (0.084 R)
• M34: 5,507,146 km (0.047 R)
• M35: 5,639,092 km (0.093 R)
• M36: 5,771,935 km (0.071 R)
• M37: 5,978,529 km (0.066 R)
• M38: 6,198,289 km (0.113 R)
• M39: 6,293,134 km (0.062 R)
• M40: 6,409,970 km (0.113 R)
• M41: 6,548,796 km (0.099 R)
• M42: 6,677,899 km (0.107 R)
• M43: 6,916,807 km (0.116 R)
• M44: 7,103,505 km (0.057 R)
• M45: 7,425,590 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.6

Radius: 10.7

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.01 AU - 3.29 AU

Year: 2877 Days

Day: 12.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (69)

Outer Limit: 46,856,982 km

• M1: 143,016 km (0.105 R)
• M2: 226,192 km (0.06 R)
• M3: 409,449 km (0.09 R)
• M4: 578,645 km (0.058 R)
• M5: 887,415 km (0.053 R)
• M6: 979,716 km (0.116 R)
• M7: 1,235,678 km (0.074 R)
• M8: 1,319,004 km (0.114 R)
• M9: 1,414,897 km (0.106 R)
• M10: 1,491,341 km (0.117 R)
• M11: 1,602,941 km (0.095 R)
• M12: 1,717,384 km (0.106 R)
• M13: 1,787,395 km (0.118 R)
• M14: 1,930,561 km (0.053 R)
• M15: 2,292,438 km (0.108 R)
• M16: 2,702,785 km (0.065 R)
• M17: 2,826,353 km (0.112 R)
• M18: 2,895,916 km (0.111 R)
• M19: 3,339,473 km (0.107 R)
• M20: 3,652,282 km (0.104 R)
• M21: 3,774,055 km (0.071 R)
• M22: 3,990,224 km (0.089 R)
• M23: 4,418,972 km (0.069 R)
• M24: 4,565,129 km (0.096 R)
• M25: 5,114,901 km (0.092 R)
• M26: 5,200,022 km (0.092 R)
• M27: 5,389,114 km (0.109 R)
• M28: 5,475,731 km (0.082 R)
• M29: 5,774,029 km (0.106 R)
• M30: 5,898,345 km (0.072 R)
• M31: 6,005,756 km (0.075 R)
• M32: 6,131,718 km (0.084 R)
• M33: 6,349,831 km (0.091 R)
• M34: 6,515,137 km (0.106 R)
• M35: 6,700,489 km (0.11 R)
• M36: 6,793,838 km (0.097 R)
• M37: 6,906,335 km (0.076 R)
• M38: 7,209,720 km (0.114 R)
• M39: 7,420,653 km (0.08 R)
• M40: 7,575,487 km (0.08 R)
• M41: 8,265,282 km (0.074 R)
• M42: 8,506,434 km (0.09 R)
• M43: 9,098,692 km (0.104 R)
• M44: 9,725,507 km (0.11 R)
• M45: 10,022,908 km (0.054 R)
• M46: 10,409,618 km (0.093 R)
• M47: 10,670,068 km (0.093 R)
• M48: 11,109,138 km (0.114 R)
• M49: 11,420,002 km (0.054 R)
• M50: 11,598,921 km (0.112 R)
• M51: 11,688,680 km (0.073 R)
• M52: 11,959,452 km (0.113 R)
• M53: 12,323,873 km (0.112 R)
• M54: 13,110,159 km (0.033 R)
• M55: 13,180,320 km (0.065 R)
• M56: 13,321,092 km (0.056 R)
• M57: 13,438,676 km (0.111 R)
• M58: 13,675,041 km (0.098 R)
• M59: 14,247,851 km (0.092 R)
• M60: 14,561,408 km (0.107 R)
• M61: 14,804,205 km (0.043 R)
• M62: 14,926,128 km (0.041 R)
• M63: 15,170,870 km (0.054 R)
• M64: 15,244,621 km (0.112 R)
• M65: 15,565,359 km (0.088 R)
• M66: 15,863,358 km (0.09 R)
• M67: 16,013,106 km (0.065 R)
• M68: 16,389,494 km (0.092 R)
• M69: 17,176,528 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.8

Radius: 14.9

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.46 AU - 3.82 AU

Year: 3710 Days

Day: 7.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (53)

Outer Limit: 46,856,982 km

• M1: 218,114 km (0.114 R)
• M2: 389,702 km (0.099 R)
• M3: 510,727 km (0.094 R)
• M4: 1,497,325 km (0.07 R)
• M5: 1,696,290 km (0.039 R)
• M6: 2,018,973 km (0.047 R)
• M7: 2,150,769 km (0.112 R)
• M8: 2,346,592 km (0.052 R)
• M9: 2,548,400 km (0.078 R)
• M10: 2,675,558 km (0.095 R)
• M11: 3,188,679 km (0.064 R)
• M12: 3,465,734 km (0.045 R)
• M13: 3,805,321 km (0.104 R)
• M14: 3,933,078 km (0.068 R)
• M15: 4,081,030 km (0.091 R)
• M16: 5,310,425 km (0.071 R)
• M17: 5,536,468 km (0.07 R)
• M18: 5,891,912 km (0.075 R)
• M19: 6,233,444 km (0.107 R)
• M20: 6,450,211 km (0.074 R)
• M21: 7,003,125 km (0.116 R)
• M22: 7,640,562 km (0.109 R)
• M23: 7,779,688 km (0.069 R)
• M24: 8,060,333 km (0.118 R)
• M25: 8,273,061 km (0.053 R)
• M26: 8,752,523 km (0.045 R)
• M27: 9,191,742 km (0.045 R)
• M28: 9,439,027 km (0.113 R)
• M29: 9,638,441 km (0.089 R)
• M30: 10,066,740 km (0.073 R)
• M31: 10,270,343 km (0.051 R)
• M32: 10,578,664 km (0.119 R)
• M33: 10,682,036 km (0.057 R)
• M34: 10,785,707 km (0.102 R)
• M35: 10,942,037 km (0.092 R)
• M36: 11,415,365 km (0.118 R)
• M37: 11,815,090 km (0.091 R)
• M38: 12,246,381 km (0.03 R)
• M39: 12,820,538 km (0.062 R)
• M40: 14,136,999 km (0.119 R)
• M41: 14,365,435 km (0.027 R)
• M42: 14,999,879 km (0.054 R)
• M43: 17,597,646 km (0.032 R)
• M44: 17,874,253 km (0.105 R)
• M45: 18,587,835 km (0.083 R)
• M46: 18,838,112 km (0.115 R)
• M47: 19,723,282 km (0.082 R)
• M48: 19,850,889 km (0.054 R)
• M49: 20,203,043 km (0.076 R)
• M50: 21,109,008 km (0.08 R)
• M51: 21,995,076 km (0.086 R)
• M52: 22,094,259 km (0.071 R)
• M53: 22,326,285 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.8

Radius: 11.2

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3.65 AU - 5.39 AU

Year: 6408 Days

Day: 12.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 46,856,982 km

• M1: 192,233 km (0.11 R)
• M2: 353,500 km (0.081 R)
• M3: 612,753 km (0.115 R)
• M4: 815,159 km (0.092 R)
• M5: 902,674 km (0.088 R)
• M6: 1,024,596 km (0.076 R)
• M7: 1,152,502 km (0.113 R)
• M8: 1,320,201 km (0.026 R)
• M9: 1,442,722 km (0.106 R)
• M10: 1,550,732 km (0.106 R)
• M11: 1,872,217 km (0.085 R)
• M12: 2,111,873 km (0.073 R)
• M13: 2,235,591 km (0.119 R)
• M14: 2,340,608 km (0.07 R)
• M15: 2,490,356 km (0.031 R)
• M16: 2,867,642 km (0.032 R)
• M17: 3,028,310 km (0.12 R)
• M18: 3,651,385 km (0.061 R)
• M19: 3,901,512 km (0.105 R)
• M20: 4,028,820 km (0.113 R)
• M21: 4,157,474 km (0.071 R)
• M22: 4,287,475 km (0.102 R)
• M23: 4,366,163 km (0.102 R)
• M24: 4,578,293 km (0.109 R)
• M25: 4,658,777 km (0.057 R)
• M26: 4,930,447 km (0.119 R)
• M27: 5,207,352 km (0.036 R)
• M28: 5,546,341 km (0.108 R)
• M29: 5,632,360 km (0.086 R)
• M30: 5,776,423 km (0.06 R)
• M31: 5,863,638 km (0.107 R)
• M32: 5,980,474 km (0.1 R)
• M33: 6,395,459 km (0.103 R)
• M34: 6,485,516 km (0.036 R)
• M35: 6,819,868 km (0.059 R)
• M36: 6,912,020 km (0.099 R)
• M37: 7,632,184 km (0.119 R)
• M38: 7,727,927 km (0.073 R)
• M39: 8,277,998 km (0.071 R)
• M40: 8,475,168 km (0.091 R)
• M41: 8,907,656 km (0.107 R)
• M42: 9,245,298 km (0.03 R)
• M43: 9,381,582 km (0.08 R)
• M44: 10,318,663 km (0.08 R)
• M45: 10,602,001 km (0.103 R)
• M46: 11,540,877 km (0.106 R)
• M47: 12,581,480 km (0.083 R)
• M48: 13,189,595 km (0.092 R)
• M49: 14,751,547 km (0.119 R)
• M50: 15,151,123 km (0.091 R)
• M51: 15,271,699 km (0.11 R)
• M52: 15,352,182 km (0.048 R)
• M53: 15,554,289 km (0.109 R)
• M54: 15,961,046 km (0.056 R)
• M55: 16,247,825 km (0.073 R)
• M56: 16,453,671 km (0.064 R)
• M57: 16,660,416 km (0.059 R)
• M58: 17,454,032 km (0.107 R)
• M59: 18,089,375 km (0.052 R)
• M60: 18,345,486 km (0.037 R)
• M61: 18,948,066 km (0.044 R)
• M62: 19,996,149 km (0.047 R)
• M63: 21,287,478 km (0.047 R)
• M64: 23,996,994 km (0.113 R)
• M65: 24,090,792 km (0.114 R)
• M66: 24,325,661 km (0.099 R)
• M67: 25,177,621 km (0.097 R)
• M68: 26,764,705 km (0.082 R)
• M69: 27,203,176 km (0.065 R)
• M70: 27,594,973 km (0.111 R)
• M71: 28,136,667 km (0.107 R)
• M72: 28,433,618 km (0.104 R)
• M73: 29,833,256 km (0.102 R)
• M74: 30,439,876 km (0.079 R)
• M75: 32,077,523 km (0.11 R)
• M76: 32,491,461 km (0.041 R)
• M77: 32,751,013 km (0.088 R)
• M78: 32,959,104 km (0.072 R)
• M79: 33,796,253 km (0.046 R)
• M80: 33,953,930 km (0.117 R)
• M81: 34,587,327 km (0.056 R)
• M82: 35,651,566 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.4

Radius: 11.4

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.3 AU - 4.94 AU

Year: 6622 Days

Day: 8.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 46,856,982 km

• M1: 169,943 km (0.087 R)
• M2: 342,579 km (0.098 R)
• M3: 447,746 km (0.08 R)
• M4: 620,233 km (0.065 R)
• M5: 721,211 km (0.077 R)
• M6: 967,898 km (0.029 R)
• M7: 1,143,227 km (0.067 R)
• M8: 1,314,666 km (0.063 R)
• M9: 1,433,896 km (0.115 R)
• M10: 1,572,423 km (0.099 R)
• M11: 1,813,725 km (0.07 R)
• M12: 1,947,465 km (0.058 R)
• M13: 2,207,317 km (0.057 R)
• M14: 2,332,380 km (0.067 R)
• M15: 2,589,988 km (0.038 R)
• M16: 3,438,357 km (0.059 R)
• M17: 3,605,309 km (0.083 R)
• M18: 3,689,682 km (0.068 R)
• M19: 3,947,140 km (0.083 R)
• M20: 4,166,301 km (0.068 R)
• M21: 4,389,351 km (0.105 R)
• M22: 4,593,702 km (0.114 R)
• M23: 5,297,111 km (0.084 R)
• M24: 5,417,537 km (0.055 R)
• M25: 5,539,011 km (0.075 R)
• M26: 6,185,274 km (0.107 R)
• M27: 6,261,419 km (0.111 R)
• M28: 6,491,800 km (0.106 R)
• M29: 6,646,783 km (0.11 R)
• M30: 6,750,903 km (0.094 R)
• M31: 6,907,981 km (0.106 R)
• M32: 7,440,699 km (0.093 R)
• M33: 7,575,935 km (0.06 R)
• M34: 7,903,854 km (0.114 R)
• M35: 8,460,807 km (0.079 R)
• M36: 8,545,479 km (0.119 R)
• M37: 10,027,396 km (0.098 R)
• M38: 10,117,005 km (0.117 R)
• M39: 10,538,871 km (0.066 R)
• M40: 11,431,072 km (0.065 R)
• M41: 11,997,001 km (0.084 R)
• M42: 12,443,551 km (0.051 R)
• M43: 12,668,995 km (0.068 R)
• M44: 12,765,934 km (0.068 R)
• M45: 13,058,398 km (0.086 R)
• M46: 13,451,691 km (0.087 R)
• M47: 13,682,969 km (0.114 R)
• M48: 14,351,073 km (0.116 R)
• M49: 14,621,397 km (0.116 R)
• M50: 15,580,319 km (0.056 R)
• M51: 16,067,559 km (0.049 R)
• M52: 16,524,282 km (0.072 R)
• M53: 16,843,075 km (0.081 R)
• M54: 17,378,934 km (0.108 R)
• M55: 17,558,900 km (0.096 R)
• M56: 17,739,316 km (0.054 R)
• M57: 17,884,126 km (0.093 R)
• M58: 18,467,408 km (0.08 R)
• M59: 18,761,518 km (0.057 R)
• M60: 19,652,672 km (0.088 R)
• M61: 19,990,464 km (0.039 R)
• M62: 20,065,862 km (0.104 R)
• M63: 20,481,893 km (0.117 R)
• M64: 21,979,667 km (0.104 R)
• M65: 22,525,849 km (0.077 R)
• M66: 22,643,433 km (0.106 R)
• M67: 22,800,660 km (0.116 R)
• M68: 23,313,931 km (0.046 R)
• M69: 23,711,412 km (0.071 R)
• M70: 24,351,990 km (0.08 R)
• M71: 24,714,915 km (0.072 R)
• M72: 25,486,840 km (0.096 R)
• M73: 25,691,190 km (0.112 R)
• M74: 25,896,289 km (0.059 R)
• M75: 26,184,115 km (0.116 R)
• M76: 26,721,620 km (0.028 R)
• M77: 27,430,116 km (0.103 R)
• M78: 27,975,999 km (0.089 R)
• M79: 28,144,595 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 135.2

Radius: 5.4

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 8.79 AU - 11.63 AU

Year: 21755 Days

Day: 22.1 Hours

Environment

Temp: -243 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 46,856,982 km

• M1: 113,994 km (0.11 R)
• M2: 161,865 km (0.095 R)
• M3: 606,021 km (0.084 R)
• M4: 720,763 km (0.111 R)
• M5: 860,487 km (0.09 R)
• M6: 1,028,186 km (0.093 R)
• M7: 1,480,720 km (0.12 R)
• M8: 1,568,982 km (0.11 R)
• M9: 1,613,862 km (0.046 R)
• M10: 1,704,817 km (0.068 R)
• M11: 1,915,750 km (0.033 R)
• M12: 2,209,860 km (0.075 R)
• M13: 3,317,931 km (0.058 R)
• M14: 3,730,073 km (0.114 R)
• M15: 4,034,355 km (0.091 R)
• M16: 4,252,170 km (0.05 R)
• M17: 4,961,413 km (0.062 R)
• M18: 5,194,636 km (0.085 R)
• M19: 6,414,009 km (0.06 R)
• M20: 6,888,533 km (0.087 R)
• M21: 7,298,880 km (0.105 R)
• M22: 8,104,016 km (0.101 R)
• M23: 8,656,331 km (0.096 R)
• M24: 9,180,073 km (0.093 R)
• M25: 10,342,598 km (0.071 R)
• M26: 10,469,906 km (0.056 R)
• M27: 12,126,852 km (0.084 R)
• M28: 12,350,800 km (0.112 R)
• M29: 12,395,829 km (0.063 R)
• M30: 12,757,407 km (0.113 R)
• M31: 12,985,245 km (0.086 R)
• M32: 13,491,334 km (0.088 R)
• M33: 13,676,836 km (0.073 R)
• M34: 15,578,673 km (0.027 R)
• M35: 16,808,817 km (0.056 R)
• M36: 17,208,991 km (0.097 R)
• M37: 18,634,210 km (0.058 R)
• M38: 19,256,537 km (0.104 R)
• M39: 20,255,701 km (0.029 R)
• M40: 20,841,975 km (0.103 R)
• M41: 21,325,625 km (0.078 R)
• M42: 21,595,949 km (0.095 R)
• M43: 25,155,181 km (0.082 R)
• M44: 27,764,318 km (0.105 R)
• M45: 28,355,678 km (0.109 R)
• M46: 28,951,227 km (0.059 R)
• M47: 29,070,905 km (0.114 R)
• M48: 32,921,405 km (0.114 R)
• M49: 33,672,835 km (0.119 R)
• M50: 34,746,948 km (0.079 R)
• M51: 39,485,460 km (0.105 R)
• M52: 39,817,418 km (0.029 R)
• M53: 40,550,896 km (0.062 R)
• M54: 40,885,696 km (0.088 R)
• M55: 41,760,545 km (0.08 R)
• M56: 42,302,089 km (0.113 R)
• M57: 43,255,177 km (0.109 R)
• M58: 46,857,045 km (0.087 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 421 - 11,184 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit