Star System Generated (Seed: 1766151070)

Star Details

Spectral Class: K4V

Temperature: 4,557 K

Mass: 0.71 sol

Luminosity: 0.3 lux

Habitable Zone (HZ)

Inner Boundary: 0.52 AU

Outer Boundary: 0.75 AU

Physical Limits

Snow Line: 2.63 AU

Max System Radius: 16.9 AU

Planetary System (7 Planets)

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.47 AU - 0.55 AU

Year: 158 Days

Day: 19.1 Hours

Environment

Temp: 109 °C

Axial Tilt: 33 °

Atmosphere: Dense COâ‚‚

Biome: Volcanic/Barren

Asteroid Belt

Center: 1.58 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.5

Radius: 12

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.59 AU - 2.69 AU

Year: 1859 Days

Day: 5.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 10.5 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (61)

Outer Limit: 39,787,711 km

  • M1: 155,432 km (0.065 R)
  • M2: 240,853 km (0.039 R)
  • M3: 327,021 km (0.108 R)
  • M4: 447,148 km (0.116 R)
  • M5: 548,426 km (0.115 R)
  • M6: 665,711 km (0.103 R)
  • M7: 800,199 km (0.101 R)
  • M8: 1,225,805 km (0.045 R)
  • M9: 1,367,624 km (0.06 R)
  • M10: 1,707,360 km (0.119 R)
  • M11: 1,867,131 km (0.083 R)
  • M12: 1,948,961 km (0.114 R)
  • M13: 2,126,983 km (0.06 R)
  • M14: 2,266,707 km (0.082 R)
  • M15: 2,420,793 km (0.07 R)
  • M16: 2,555,730 km (0.114 R)
  • M17: 2,739,735 km (0.066 R)
  • M18: 2,856,871 km (0.099 R)
  • M19: 2,939,897 km (0.046 R)
  • M20: 3,035,939 km (0.069 R)
  • M21: 3,169,530 km (0.108 R)
  • M22: 3,317,782 km (0.048 R)
  • M23: 3,417,713 km (0.079 R)
  • M24: 3,506,125 km (0.098 R)
  • M25: 3,815,045 km (0.091 R)
  • M26: 4,132,940 km (0.077 R)
  • M27: 4,240,950 km (0.11 R)
  • M28: 4,377,084 km (0.104 R)
  • M29: 4,473,425 km (0.081 R)
  • M30: 4,724,151 km (0.09 R)
  • M31: 4,965,303 km (0.113 R)
  • M32: 5,239,665 km (0.099 R)
  • M33: 5,489,344 km (0.08 R)
  • M34: 5,593,315 km (0.088 R)
  • M35: 6,061,706 km (0.074 R)
  • M36: 6,355,217 km (0.109 R)
  • M37: 6,574,378 km (0.091 R)
  • M38: 7,133,275 km (0.079 R)
  • M39: 7,377,569 km (0.116 R)
  • M40: 7,525,521 km (0.034 R)
  • M41: 7,790,908 km (0.074 R)
  • M42: 8,110,149 km (0.114 R)
  • M43: 8,365,214 km (0.089 R)
  • M44: 8,761,498 km (0.06 R)
  • M45: 8,970,636 km (0.119 R)
  • M46: 9,075,804 km (0.047 R)
  • M47: 9,376,196 km (0.065 R)
  • M48: 9,536,565 km (0.071 R)
  • M49: 10,041,308 km (0.071 R)
  • M50: 10,187,166 km (0.096 R)
  • M51: 10,352,173 km (0.076 R)
  • M52: 10,536,328 km (0.099 R)
  • M53: 10,926,928 km (0.106 R)
  • M54: 11,133,373 km (0.104 R)
  • M55: 11,550,302 km (0.088 R)
  • M56: 11,741,488 km (0.111 R)
  • M57: 12,340,777 km (0.104 R)
  • M58: 12,614,691 km (0.12 R)
  • M59: 13,009,629 km (0.107 R)
  • M60: 13,148,755 km (0.111 R)
  • M61: 13,508,987 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.7

Radius: 11.2

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.71 AU - 4.39 AU

Year: 2899 Days

Day: 11.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 0.1 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (71)

Outer Limit: 39,787,711 km

  • M1: 161,566 km (0.109 R)
  • M2: 234,420 km (0.096 R)
  • M3: 311,014 km (0.07 R)
  • M4: 408,253 km (0.118 R)
  • M5: 526,884 km (0.085 R)
  • M6: 641,924 km (0.111 R)
  • M7: 785,090 km (0.091 R)
  • M8: 1,041,800 km (0.073 R)
  • M9: 1,325,587 km (0.119 R)
  • M10: 1,536,819 km (0.077 R)
  • M11: 1,634,207 km (0.12 R)
  • M12: 1,721,273 km (0.118 R)
  • M13: 1,913,357 km (0.119 R)
  • M14: 2,166,925 km (0.069 R)
  • M15: 2,346,742 km (0.097 R)
  • M16: 2,546,006 km (0.104 R)
  • M17: 2,662,543 km (0.056 R)
  • M18: 2,961,589 km (0.085 R)
  • M19: 3,208,575 km (0.113 R)
  • M20: 3,318,978 km (0.106 R)
  • M21: 3,430,429 km (0.097 R)
  • M22: 3,510,912 km (0.115 R)
  • M23: 3,608,301 km (0.078 R)
  • M24: 3,922,905 km (0.092 R)
  • M25: 4,109,005 km (0.069 R)
  • M26: 4,211,928 km (0.052 R)
  • M27: 4,332,953 km (0.093 R)
  • M28: 4,472,677 km (0.1 R)
  • M29: 4,937,328 km (0.084 R)
  • M30: 5,249,688 km (0.103 R)
  • M31: 5,380,138 km (0.116 R)
  • M32: 5,511,634 km (0.088 R)
  • M33: 5,606,330 km (0.075 R)
  • M34: 5,835,663 km (0.065 R)
  • M35: 6,029,243 km (0.099 R)
  • M36: 6,126,781 km (0.089 R)
  • M37: 6,987,567 km (0.07 R)
  • M38: 7,296,786 km (0.078 R)
  • M39: 7,484,531 km (0.065 R)
  • M40: 7,800,931 km (0.04 R)
  • M41: 7,928,687 km (0.088 R)
  • M42: 8,143,360 km (0.073 R)
  • M43: 8,229,678 km (0.103 R)
  • M44: 8,468,735 km (0.072 R)
  • M45: 8,556,400 km (0.12 R)
  • M46: 8,732,327 km (0.076 R)
  • M47: 9,470,892 km (0.061 R)
  • M48: 9,561,698 km (0.093 R)
  • M49: 9,790,283 km (0.054 R)
  • M50: 9,974,288 km (0.056 R)
  • M51: 10,510,148 km (0.082 R)
  • M52: 10,769,700 km (0.062 R)
  • M53: 11,343,408 km (0.105 R)
  • M54: 11,755,700 km (0.037 R)
  • M55: 12,148,394 km (0.098 R)
  • M56: 12,871,102 km (0.114 R)
  • M57: 13,994,133 km (0.075 R)
  • M58: 14,279,715 km (0.116 R)
  • M59: 14,567,242 km (0.114 R)
  • M60: 15,068,545 km (0.111 R)
  • M61: 15,174,909 km (0.104 R)
  • M62: 15,361,457 km (0.103 R)
  • M63: 15,871,586 km (0.086 R)
  • M64: 16,278,343 km (0.105 R)
  • M65: 16,551,508 km (0.072 R)
  • M66: 16,991,476 km (0.095 R)
  • M67: 17,324,181 km (0.044 R)
  • M68: 17,771,030 km (0.1 R)
  • M69: 17,883,229 km (0.117 R)
  • M70: 18,249,893 km (0.118 R)
  • M71: 19,220,484 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.9

Radius: 12.5

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.16 AU - 6.76 AU

Year: 6307 Days

Day: 10.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 17.6 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (66)

Outer Limit: 39,787,711 km

  • M1: 228,586 km (0.066 R)
  • M2: 460,013 km (0.114 R)
  • M3: 581,038 km (0.081 R)
  • M4: 888,163 km (0.11 R)
  • M5: 1,091,316 km (0.049 R)
  • M6: 1,310,477 km (0.062 R)
  • M7: 1,666,670 km (0.086 R)
  • M8: 1,884,036 km (0.098 R)
  • M9: 2,612,876 km (0.102 R)
  • M10: 2,931,819 km (0.054 R)
  • M11: 3,285,917 km (0.102 R)
  • M12: 3,376,723 km (0.088 R)
  • M13: 3,491,315 km (0.043 R)
  • M14: 3,630,591 km (0.032 R)
  • M15: 4,206,393 km (0.033 R)
  • M16: 4,505,140 km (0.074 R)
  • M17: 4,914,440 km (0.066 R)
  • M18: 5,097,248 km (0.083 R)
  • M19: 5,176,386 km (0.078 R)
  • M20: 6,129,174 km (0.051 R)
  • M21: 7,522,379 km (0.106 R)
  • M22: 7,612,587 km (0.083 R)
  • M23: 8,254,661 km (0.074 R)
  • M24: 8,692,384 km (0.059 R)
  • M25: 8,787,229 km (0.05 R)
  • M26: 9,105,723 km (0.048 R)
  • M27: 9,590,570 km (0.077 R)
  • M28: 9,688,556 km (0.046 R)
  • M29: 9,984,611 km (0.113 R)
  • M30: 10,150,365 km (0.059 R)
  • M31: 10,856,617 km (0.096 R)
  • M32: 11,164,040 km (0.084 R)
  • M33: 11,301,670 km (0.085 R)
  • M34: 12,996,614 km (0.091 R)
  • M35: 13,286,834 km (0.108 R)
  • M36: 14,170,359 km (0.074 R)
  • M37: 15,339,466 km (0.101 R)
  • M38: 15,530,952 km (0.05 R)
  • M39: 16,617,780 km (0.082 R)
  • M40: 17,130,751 km (0.108 R)
  • M41: 17,409,153 km (0.102 R)
  • M42: 18,131,860 km (0.117 R)
  • M43: 18,293,875 km (0.031 R)
  • M44: 19,193,257 km (0.067 R)
  • M45: 20,316,588 km (0.116 R)
  • M46: 21,503,946 km (0.099 R)
  • M47: 21,933,441 km (0.102 R)
  • M48: 22,583,145 km (0.082 R)
  • M49: 23,415,059 km (0.109 R)
  • M50: 25,108,955 km (0.117 R)
  • M51: 25,244,491 km (0.112 R)
  • M52: 25,470,683 km (0.075 R)
  • M53: 26,336,406 km (0.078 R)
  • M54: 26,657,892 km (0.117 R)
  • M55: 27,629,979 km (0.11 R)
  • M56: 28,003,375 km (0.112 R)
  • M57: 28,566,611 km (0.1 R)
  • M58: 28,849,650 km (0.096 R)
  • M59: 29,038,742 km (0.118 R)
  • M60: 29,465,993 km (0.089 R)
  • M61: 29,608,859 km (0.109 R)
  • M62: 29,799,597 km (0.068 R)
  • M63: 29,943,061 km (0.117 R)
  • M64: 30,615,354 km (0.047 R)
  • M65: 30,953,295 km (0.067 R)
  • M66: 33,155,526 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.2

Radius: 14.6

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 8.6 AU - 10.64 AU

Year: 12934 Days

Day: 9.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 7.2 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (67)

Outer Limit: 39,787,711 km

  • M1: 182,958 km (0.101 R)
  • M2: 314,156 km (0.09 R)
  • M3: 454,628 km (0.114 R)
  • M4: 583,581 km (0.101 R)
  • M5: 920,177 km (0.053 R)
  • M6: 1,130,511 km (0.1 R)
  • M7: 1,242,111 km (0.072 R)
  • M8: 1,377,348 km (0.086 R)
  • M9: 1,538,465 km (0.099 R)
  • M10: 2,270,596 km (0.109 R)
  • M11: 2,762,923 km (0.04 R)
  • M12: 3,021,877 km (0.087 R)
  • M13: 3,315,986 km (0.044 R)
  • M14: 3,760,741 km (0.102 R)
  • M15: 5,017,812 km (0.048 R)
  • M16: 5,303,245 km (0.097 R)
  • M17: 6,056,769 km (0.047 R)
  • M18: 7,054,886 km (0.101 R)
  • M19: 7,591,194 km (0.074 R)
  • M20: 7,700,102 km (0.048 R)
  • M21: 7,956,213 km (0.115 R)
  • M22: 8,401,865 km (0.05 R)
  • M23: 8,514,512 km (0.116 R)
  • M24: 9,162,720 km (0.032 R)
  • M25: 11,160,300 km (0.036 R)
  • M26: 11,450,520 km (0.083 R)
  • M27: 12,335,990 km (0.054 R)
  • M28: 12,550,065 km (0.066 R)
  • M29: 12,808,719 km (0.109 R)
  • M30: 13,243,600 km (0.055 R)
  • M31: 13,418,929 km (0.073 R)
  • M32: 14,622,444 km (0.114 R)
  • M33: 15,352,033 km (0.117 R)
  • M34: 15,814,141 km (0.071 R)
  • M35: 16,046,915 km (0.064 R)
  • M36: 16,327,710 km (0.075 R)
  • M37: 16,704,547 km (0.077 R)
  • M38: 17,323,284 km (0.114 R)
  • M39: 19,174,557 km (0.104 R)
  • M40: 19,273,741 km (0.101 R)
  • M41: 20,174,170 km (0.066 R)
  • M42: 20,578,683 km (0.12 R)
  • M43: 20,731,123 km (0.098 R)
  • M44: 21,912,049 km (0.118 R)
  • M45: 22,851,374 km (0.04 R)
  • M46: 23,857,270 km (0.1 R)
  • M47: 25,857,394 km (0.079 R)
  • M48: 26,407,315 km (0.119 R)
  • M49: 28,305,264 km (0.113 R)
  • M50: 28,418,360 km (0.052 R)
  • M51: 29,099,628 km (0.086 R)
  • M52: 29,442,357 km (0.079 R)
  • M53: 30,247,044 km (0.092 R)
  • M54: 30,362,683 km (0.068 R)
  • M55: 30,594,261 km (0.033 R)
  • M56: 30,942,674 km (0.082 R)
  • M57: 31,350,927 km (0.091 R)
  • M58: 31,467,912 km (0.069 R)
  • M59: 31,584,898 km (0.072 R)
  • M60: 34,499,064 km (0.105 R)
  • M61: 35,713,051 km (0.101 R)
  • M62: 36,202,685 km (0.053 R)
  • M63: 36,817,682 km (0.118 R)
  • M64: 37,746,684 km (0.098 R)
  • M65: 38,120,529 km (0.102 R)
  • M66: 41,796,598 km (0.072 R)
  • M67: 42,247,935 km (0.12 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 403.3

Radius: 6.3

Gravity: 10.16 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 13.99 AU - 16.53 AU

Year: 25840 Days

Day: 15.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 1.7 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (94)

Outer Limit: 39,787,711 km

  • M1: 132,394 km (0.062 R)
  • M2: 190,288 km (0.098 R)
  • M3: 245,789 km (0.091 R)
  • M4: 359,334 km (0.078 R)
  • M5: 660,325 km (0.082 R)
  • M6: 848,370 km (0.055 R)
  • M7: 1,244,953 km (0.109 R)
  • M8: 1,788,293 km (0.098 R)
  • M9: 2,084,796 km (0.113 R)
  • M10: 2,760,530 km (0.111 R)
  • M11: 2,949,023 km (0.086 R)
  • M12: 4,381,123 km (0.117 R)
  • M13: 4,645,463 km (0.055 R)
  • M14: 5,189,550 km (0.057 R)
  • M15: 5,235,776 km (0.078 R)
  • M16: 6,686,127 km (0.062 R)
  • M17: 7,612,138 km (0.106 R)
  • M18: 8,468,586 km (0.032 R)
  • M19: 8,523,189 km (0.031 R)
  • M20: 9,186,805 km (0.093 R)
  • M21: 10,097,258 km (0.106 R)
  • M22: 10,329,284 km (0.107 R)
  • M23: 10,445,971 km (0.091 R)
  • M24: 10,917,204 km (0.112 R)
  • M25: 11,275,192 km (0.087 R)
  • M26: 11,335,180 km (0.099 R)
  • M27: 12,063,871 km (0.075 R)
  • M28: 12,248,475 km (0.085 R)
  • M29: 12,496,060 km (0.072 R)
  • M30: 12,996,016 km (0.1 R)
  • M31: 13,951,049 km (0.091 R)
  • M32: 14,015,525 km (0.094 R)
  • M33: 15,193,010 km (0.119 R)
  • M34: 16,401,761 km (0.099 R)
  • M35: 17,920,778 km (0.101 R)
  • M36: 18,131,262 km (0.118 R)
  • M37: 19,196,548 km (0.068 R)
  • M38: 20,721,699 km (0.034 R)
  • M39: 21,238,709 km (0.081 R)
  • M40: 21,461,610 km (0.099 R)
  • M41: 22,134,800 km (0.103 R)
  • M42: 22,967,163 km (0.057 R)
  • M43: 23,425,381 km (0.095 R)
  • M44: 24,118,468 km (0.079 R)
  • M45: 25,840,788 km (0.118 R)
  • M46: 26,957,387 km (0.082 R)
  • M47: 27,440,737 km (0.072 R)
  • M48: 27,521,520 km (0.116 R)
  • M49: 29,237,258 km (0.12 R)
  • M50: 29,319,836 km (0.086 R)
  • M51: 30,233,131 km (0.1 R)
  • M52: 31,240,075 km (0.106 R)
  • M53: 32,172,817 km (0.094 R)
  • M54: 32,942,798 km (0.047 R)
  • M55: 33,718,762 km (0.05 R)
  • M56: 35,200,828 km (0.064 R)
  • M57: 35,993,996 km (0.109 R)
  • M58: 36,882,308 km (0.107 R)
  • M59: 37,418,616 km (0.071 R)
  • M60: 37,687,892 km (0.045 R)
  • M61: 38,047,675 km (0.092 R)
  • M62: 38,228,090 km (0.061 R)
  • M63: 38,952,443 km (0.119 R)
  • M64: 39,864,242 km (0.104 R)
  • M65: 40,967,676 km (0.11 R)
  • M66: 41,152,579 km (0.117 R)
  • M67: 41,245,031 km (0.102 R)
  • M68: 42,081,133 km (0.118 R)
  • M69: 42,922,771 km (0.032 R)
  • M70: 44,812,790 km (0.074 R)
  • M71: 45,576,338 km (0.052 R)
  • M72: 45,959,757 km (0.099 R)
  • M73: 46,151,841 km (0.107 R)
  • M74: 46,248,032 km (0.06 R)
  • M75: 49,163,395 km (0.086 R)
  • M76: 49,359,967 km (0.064 R)
  • M77: 51,139,883 km (0.083 R)
  • M78: 54,152,933 km (0.062 R)
  • M79: 55,476,276 km (0.091 R)
  • M80: 56,913,313 km (0.112 R)
  • M81: 58,466,737 km (0.047 R)
  • M82: 58,987,488 km (0.1 R)
  • M83: 59,196,326 km (0.12 R)
  • M84: 59,405,314 km (0.049 R)
  • M85: 59,509,883 km (0.104 R)
  • M86: 60,033,925 km (0.075 R)
  • M87: 63,851,064 km (0.057 R)
  • M88: 63,958,176 km (0.104 R)
  • M89: 66,439,257 km (0.086 R)
  • M90: 68,183,568 km (0.061 R)
  • M91: 69,281,467 km (0.108 R)
  • M92: 69,942,988 km (0.12 R)
  • M93: 74,970,674 km (0.093 R)
  • M94: 75,536,453 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 46.5

Radius: 7.7

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 16.01 AU - 16.97 AU

Year: 29026 Days

Day: 18.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 38.3 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (33)

Outer Limit: 39,787,711 km

  • M1: 401,521 km (0.032 R)
  • M2: 593,904 km (0.059 R)
  • M3: 1,623,586 km (0.099 R)
  • M4: 2,242,173 km (0.069 R)
  • M5: 3,279,784 km (0.087 R)
  • M6: 3,357,126 km (0.107 R)
  • M7: 6,358,657 km (0.075 R)
  • M8: 6,650,523 km (0.114 R)
  • M9: 7,213,460 km (0.088 R)
  • M10: 7,314,438 km (0.116 R)
  • M11: 9,800,157 km (0.064 R)
  • M12: 10,024,404 km (0.116 R)
  • M13: 12,681,561 km (0.072 R)
  • M14: 12,762,942 km (0.112 R)
  • M15: 13,585,282 km (0.116 R)
  • M16: 14,467,161 km (0.108 R)
  • M17: 15,065,254 km (0.058 R)
  • M18: 16,197,560 km (0.109 R)
  • M19: 16,285,673 km (0.089 R)
  • M20: 17,087,069 km (0.075 R)
  • M21: 18,681,483 km (0.096 R)
  • M22: 24,446,237 km (0.069 R)
  • M23: 26,914,452 km (0.094 R)
  • M24: 27,649,277 km (0.07 R)
  • M25: 28,443,791 km (0.079 R)
  • M26: 30,272,326 km (0.078 R)
  • M27: 32,027,857 km (0.079 R)
  • M28: 32,638,815 km (0.101 R)
  • M29: 32,806,215 km (0.1 R)
  • M30: 36,154,215 km (0.037 R)
  • M31: 38,015,063 km (0.081 R)
  • M32: 38,779,807 km (0.12 R)
  • M33: 38,838,898 km (0.084 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 188 - 18,187 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit