G0V Star System Generated (Seed: 1766324158)

Star Details

Spectral Class: G0V

Temperature: 5,920 K

Mass: 1.08 sol

Luminosity: 1.31 lux

Habitable Zone (HZ)

Inner Boundary: 1.09 AU

Outer Boundary: 1.57 AU

Physical Limits

Snow Line: 5.49 AU

Max System Radius: 20.8 AU

Planetary System (7 Planets)

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.67 AU - 0.73 AU

Year: 206 Days

Day: 25.8 Hours

Environment

Temp: 170 °C

Axial Tilt: 131.9 °

Atmosphere: Dense COâ‚‚

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.93 AU - 4.67 AU

Year: 2603 Days

Day: 47.7 Hours

Environment

Temp: -116 °C

Axial Tilt: 0.8 °

Atmosphere: Thin Nâ‚‚/CHâ‚„

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,096,244 km

  • M1: 2,269,101 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.7

Radius: 12.6

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 7.8 AU - 8.16 AU

Year: 7923 Days

Day: 14.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.7 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (67)

Outer Limit: 71,096,244 km

  • M1: 273,764 km (0.104 R)
  • M2: 437,873 km (0.076 R)
  • M3: 693,237 km (0.117 R)
  • M4: 786,137 km (0.069 R)
  • M5: 940,372 km (0.107 R)
  • M6: 1,045,390 km (0.103 R)
  • M7: 1,398,740 km (0.099 R)
  • M8: 1,833,172 km (0.068 R)
  • M9: 2,151,367 km (0.083 R)
  • M10: 2,229,756 km (0.029 R)
  • M11: 2,341,207 km (0.059 R)
  • M12: 2,487,364 km (0.118 R)
  • M13: 2,823,211 km (0.059 R)
  • M14: 2,909,529 km (0.106 R)
  • M15: 3,281,878 km (0.083 R)
  • M16: 3,427,736 km (0.097 R)
  • M17: 3,538,588 km (0.106 R)
  • M18: 3,764,032 km (0.076 R)
  • M19: 3,936,219 km (0.105 R)
  • M20: 4,308,568 km (0.091 R)
  • M21: 4,961,264 km (0.104 R)
  • M22: 5,065,982 km (0.047 R)
  • M23: 5,214,084 km (0.056 R)
  • M24: 5,384,925 km (0.098 R)
  • M25: 5,536,168 km (0.079 R)
  • M26: 5,666,767 km (0.113 R)
  • M27: 5,776,423 km (0.108 R)
  • M28: 5,953,397 km (0.048 R)
  • M29: 6,449,463 km (0.087 R)
  • M30: 7,409,433 km (0.113 R)
  • M31: 7,820,677 km (0.115 R)
  • M32: 8,090,702 km (0.04 R)
  • M33: 8,741,153 km (0.116 R)
  • M34: 8,970,337 km (0.106 R)
  • M35: 9,098,542 km (0.07 R)
  • M36: 9,227,346 km (0.11 R)
  • M37: 9,986,256 km (0.054 R)
  • M38: 10,119,099 km (0.089 R)
  • M39: 10,306,097 km (0.1 R)
  • M40: 10,819,666 km (0.079 R)
  • M41: 10,928,872 km (0.119 R)
  • M42: 11,591,591 km (0.108 R)
  • M43: 11,703,341 km (0.076 R)
  • M44: 13,130,205 km (0.088 R)
  • M45: 13,480,863 km (0.034 R)
  • M46: 13,745,950 km (0.096 R)
  • M47: 15,005,265 km (0.115 R)
  • M48: 15,127,187 km (0.071 R)
  • M49: 15,464,081 km (0.089 R)
  • M50: 17,153,490 km (0.097 R)
  • M51: 18,214,738 km (0.078 R)
  • M52: 18,605,786 km (0.092 R)
  • M53: 18,835,270 km (0.052 R)
  • M54: 19,032,739 km (0.095 R)
  • M55: 19,164,684 km (0.052 R)
  • M56: 19,529,254 km (0.062 R)
  • M57: 20,298,935 km (0.046 R)
  • M58: 20,535,150 km (0.033 R)
  • M59: 20,704,495 km (0.096 R)
  • M60: 20,806,371 km (0.08 R)
  • M61: 21,283,588 km (0.114 R)
  • M62: 21,420,620 km (0.093 R)
  • M63: 21,592,358 km (0.086 R)
  • M64: 22,283,800 km (0.09 R)
  • M65: 22,457,782 km (0.058 R)
  • M66: 23,052,882 km (0.091 R)
  • M67: 23,653,069 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.4

Radius: 12.6

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 6.96 AU - 9.12 AU

Year: 8012 Days

Day: 11.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 14.7 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (60)

Outer Limit: 71,096,244 km

  • M1: 165,605 km (0.117 R)
  • M2: 246,687 km (0.097 R)
  • M3: 365,019 km (0.066 R)
  • M4: 475,123 km (0.092 R)
  • M5: 616,044 km (0.082 R)
  • M6: 719,267 km (0.084 R)
  • M7: 801,097 km (0.062 R)
  • M8: 1,078,002 km (0.073 R)
  • M9: 1,261,708 km (0.03 R)
  • M10: 1,444,367 km (0.081 R)
  • M11: 1,636,152 km (0.098 R)
  • M12: 2,098,709 km (0.113 R)
  • M13: 2,486,466 km (0.101 R)
  • M14: 2,822,164 km (0.049 R)
  • M15: 3,033,695 km (0.118 R)
  • M16: 3,716,310 km (0.111 R)
  • M17: 4,083,723 km (0.085 R)
  • M18: 4,306,474 km (0.11 R)
  • M19: 4,515,761 km (0.094 R)
  • M20: 4,639,329 km (0.102 R)
  • M21: 5,517,319 km (0.085 R)
  • M22: 6,150,567 km (0.084 R)
  • M23: 6,327,392 km (0.081 R)
  • M24: 6,466,069 km (0.107 R)
  • M25: 6,847,543 km (0.048 R)
  • M26: 7,051,296 km (0.064 R)
  • M27: 7,236,498 km (0.115 R)
  • M28: 7,569,652 km (0.067 R)
  • M29: 7,653,726 km (0.091 R)
  • M30: 8,014,556 km (0.099 R)
  • M31: 8,294,304 km (0.083 R)
  • M32: 8,511,670 km (0.097 R)
  • M33: 9,354,804 km (0.1 R)
  • M34: 9,604,034 km (0.088 R)
  • M35: 9,947,211 km (0.062 R)
  • M36: 10,457,938 km (0.103 R)
  • M37: 10,551,736 km (0.094 R)
  • M38: 10,882,198 km (0.114 R)
  • M39: 11,096,572 km (0.079 R)
  • M40: 11,288,207 km (0.106 R)
  • M41: 11,553,444 km (0.063 R)
  • M42: 11,796,390 km (0.113 R)
  • M43: 12,610,353 km (0.099 R)
  • M44: 13,621,185 km (0.094 R)
  • M45: 14,396,401 km (0.029 R)
  • M46: 14,815,724 km (0.092 R)
  • M47: 14,921,191 km (0.07 R)
  • M48: 15,159,351 km (0.112 R)
  • M49: 15,345,450 km (0.104 R)
  • M50: 15,612,782 km (0.054 R)
  • M51: 15,881,609 km (0.054 R)
  • M52: 15,962,542 km (0.065 R)
  • M53: 16,124,855 km (0.083 R)
  • M54: 16,396,525 km (0.109 R)
  • M55: 16,889,450 km (0.094 R)
  • M56: 17,193,134 km (0.119 R)
  • M57: 17,833,861 km (0.079 R)
  • M58: 18,086,682 km (0.066 R)
  • M59: 18,199,479 km (0.073 R)
  • M60: 19,138,654 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.4

Radius: 11.2

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 11.81 AU - 11.89 AU

Year: 14337 Days

Day: 13.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 19.9 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (90)

Outer Limit: 71,096,244 km

  • M1: 222,751 km (0.055 R)
  • M2: 375,491 km (0.098 R)
  • M3: 485,894 km (0.05 R)
  • M4: 666,608 km (0.044 R)
  • M5: 786,436 km (0.108 R)
  • M6: 1,026,391 km (0.066 R)
  • M7: 1,191,846 km (0.106 R)
  • M8: 1,265,448 km (0.078 R)
  • M9: 1,713,195 km (0.039 R)
  • M10: 2,087,788 km (0.078 R)
  • M11: 2,331,184 km (0.103 R)
  • M12: 2,551,840 km (0.118 R)
  • M13: 2,681,093 km (0.066 R)
  • M14: 3,185,238 km (0.118 R)
  • M15: 3,609,946 km (0.094 R)
  • M16: 3,718,853 km (0.113 R)
  • M17: 4,709,491 km (0.07 R)
  • M18: 5,234,130 km (0.077 R)
  • M19: 5,399,286 km (0.093 R)
  • M20: 6,034,329 km (0.058 R)
  • M21: 6,120,946 km (0.111 R)
  • M22: 6,338,911 km (0.104 R)
  • M23: 6,426,874 km (0.077 R)
  • M24: 6,737,888 km (0.084 R)
  • M25: 7,053,839 km (0.082 R)
  • M26: 7,560,228 km (0.101 R)
  • M27: 8,030,862 km (0.098 R)
  • M28: 8,317,791 km (0.038 R)
  • M29: 8,510,922 km (0.09 R)
  • M30: 8,852,604 km (0.049 R)
  • M31: 9,149,107 km (0.081 R)
  • M32: 9,348,521 km (0.119 R)
  • M33: 9,751,836 km (0.092 R)
  • M34: 10,006,751 km (0.038 R)
  • M35: 11,207,872 km (0.084 R)
  • M36: 13,234,176 km (0.082 R)
  • M37: 13,403,371 km (0.085 R)
  • M38: 13,743,856 km (0.059 R)
  • M39: 14,260,118 km (0.098 R)
  • M40: 15,017,083 km (0.098 R)
  • M41: 15,966,431 km (0.103 R)
  • M42: 16,569,759 km (0.103 R)
  • M43: 17,119,083 km (0.093 R)
  • M44: 17,860,939 km (0.093 R)
  • M45: 18,739,527 km (0.038 R)
  • M46: 18,929,666 km (0.117 R)
  • M47: 19,503,972 km (0.116 R)
  • M48: 20,278,440 km (0.1 R)
  • M49: 21,591,610 km (0.068 R)
  • M50: 21,857,595 km (0.041 R)
  • M51: 22,527,195 km (0.053 R)
  • M52: 23,955,107 km (0.094 R)
  • M53: 24,368,596 km (0.097 R)
  • M54: 25,904,367 km (0.11 R)
  • M55: 26,116,347 km (0.051 R)
  • M56: 26,328,776 km (0.087 R)
  • M57: 27,112,669 km (0.071 R)
  • M58: 27,759,680 km (0.105 R)
  • M59: 28,266,368 km (0.101 R)
  • M60: 29,805,132 km (0.115 R)
  • M61: 29,953,084 km (0.083 R)
  • M62: 30,101,336 km (0.105 R)
  • M63: 30,398,437 km (0.115 R)
  • M64: 31,070,580 km (0.116 R)
  • M65: 33,499,750 km (0.095 R)
  • M66: 33,884,965 km (0.082 R)
  • M67: 34,504,001 km (0.12 R)
  • M68: 34,737,224 km (0.049 R)
  • M69: 36,147,184 km (0.101 R)
  • M70: 36,859,120 km (0.096 R)
  • M71: 39,265,701 km (0.09 R)
  • M72: 39,671,710 km (0.108 R)
  • M73: 42,219,960 km (0.113 R)
  • M74: 44,228,910 km (0.082 R)
  • M75: 45,075,035 km (0.096 R)
  • M76: 46,354,396 km (0.094 R)
  • M77: 47,041,649 km (0.044 R)
  • M78: 48,774,441 km (0.057 R)
  • M79: 49,210,818 km (0.115 R)
  • M80: 50,881,078 km (0.115 R)
  • M81: 54,367,457 km (0.112 R)
  • M82: 54,638,827 km (0.114 R)
  • M83: 54,819,990 km (0.115 R)
  • M84: 55,911,157 km (0.072 R)
  • M85: 57,285,213 km (0.08 R)
  • M86: 58,484,988 km (0.118 R)
  • M87: 62,512,313 km (0.098 R)
  • M88: 62,986,388 km (0.086 R)
  • M89: 63,271,372 km (0.06 R)
  • M90: 63,366,516 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 12.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.2

Radius: 12

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 9.46 AU - 14.95 AU

Year: 14977 Days

Day: 9.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 22.1 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (88)

Outer Limit: 71,096,244 km

  • M1: 171,589 km (0.108 R)
  • M2: 445,652 km (0.118 R)
  • M3: 617,839 km (0.09 R)
  • M4: 773,421 km (0.099 R)
  • M5: 1,055,862 km (0.057 R)
  • M6: 1,149,660 km (0.037 R)
  • M7: 1,371,513 km (0.099 R)
  • M8: 1,634,806 km (0.067 R)
  • M9: 2,090,181 km (0.092 R)
  • M10: 2,301,862 km (0.081 R)
  • M11: 2,648,780 km (0.1 R)
  • M12: 2,845,202 km (0.096 R)
  • M13: 3,080,519 km (0.055 R)
  • M14: 3,322,270 km (0.04 R)
  • M15: 3,463,340 km (0.098 R)
  • M16: 3,935,471 km (0.077 R)
  • M17: 4,466,843 km (0.113 R)
  • M18: 4,701,711 km (0.109 R)
  • M19: 5,061,494 km (0.073 R)
  • M20: 6,150,866 km (0.061 R)
  • M21: 6,412,363 km (0.107 R)
  • M22: 6,722,180 km (0.112 R)
  • M23: 7,448,777 km (0.043 R)
  • M24: 7,541,378 km (0.072 R)
  • M25: 8,926,804 km (0.106 R)
  • M26: 9,724,460 km (0.038 R)
  • M27: 10,910,921 km (0.114 R)
  • M28: 11,871,189 km (0.079 R)
  • M29: 12,526,279 km (0.065 R)
  • M30: 13,137,236 km (0.097 R)
  • M31: 14,388,174 km (0.107 R)
  • M32: 15,321,664 km (0.094 R)
  • M33: 15,439,697 km (0.032 R)
  • M34: 15,617,419 km (0.104 R)
  • M35: 15,795,740 km (0.071 R)
  • M36: 17,864,080 km (0.117 R)
  • M37: 18,551,482 km (0.09 R)
  • M38: 19,887,541 km (0.069 R)
  • M39: 20,730,076 km (0.059 R)
  • M40: 21,320,389 km (0.066 R)
  • M41: 21,982,659 km (0.078 R)
  • M42: 22,853,618 km (0.081 R)
  • M43: 23,395,312 km (0.066 R)
  • M44: 23,872,679 km (0.12 R)
  • M45: 25,673,987 km (0.112 R)
  • M46: 27,089,182 km (0.115 R)
  • M47: 27,375,363 km (0.116 R)
  • M48: 27,734,398 km (0.091 R)
  • M49: 29,699,964 km (0.056 R)
  • M50: 30,068,873 km (0.032 R)
  • M51: 31,334,471 km (0.117 R)
  • M52: 32,314,187 km (0.106 R)
  • M53: 32,693,567 km (0.114 R)
  • M54: 35,703,626 km (0.115 R)
  • M55: 36,568,601 km (0.118 R)
  • M56: 36,884,851 km (0.056 R)
  • M57: 37,201,998 km (0.086 R)
  • M58: 37,520,044 km (0.118 R)
  • M59: 38,078,792 km (0.068 R)
  • M60: 38,720,716 km (0.101 R)
  • M61: 38,801,200 km (0.037 R)
  • M62: 38,962,317 km (0.096 R)
  • M63: 40,913,671 km (0.107 R)
  • M64: 42,232,077 km (0.025 R)
  • M65: 42,397,832 km (0.044 R)
  • M66: 42,979,917 km (0.064 R)
  • M67: 43,230,045 km (0.078 R)
  • M68: 43,397,146 km (0.089 R)
  • M69: 43,983,719 km (0.087 R)
  • M70: 45,079,822 km (0.07 R)
  • M71: 45,249,317 km (0.073 R)
  • M72: 46,185,051 km (0.11 R)
  • M73: 48,335,371 km (0.092 R)
  • M74: 48,943,337 km (0.039 R)
  • M75: 49,466,331 km (0.09 R)
  • M76: 50,342,376 km (0.114 R)
  • M77: 50,958,570 km (0.103 R)
  • M78: 52,465,469 km (0.08 R)
  • M79: 53,627,695 km (0.081 R)
  • M80: 53,987,029 km (0.102 R)
  • M81: 55,250,982 km (0.04 R)
  • M82: 57,073,383 km (0.115 R)
  • M83: 57,440,197 km (0.103 R)
  • M84: 58,360,822 km (0.056 R)
  • M85: 59,100,883 km (0.107 R)
  • M86: 59,843,935 km (0.115 R)
  • M87: 60,683,628 km (0.111 R)
  • M88: 62,280,286 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.7

Radius: 12.5

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 9.87 AU - 15.47 AU

Year: 15851 Days

Day: 13.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 89.2 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (87)

Outer Limit: 71,096,244 km

  • M1: 161,865 km (0.109 R)
  • M2: 285,732 km (0.098 R)
  • M3: 580,739 km (0.111 R)
  • M4: 1,851,722 km (0.092 R)
  • M5: 2,994,501 km (0.112 R)
  • M6: 3,104,455 km (0.099 R)
  • M7: 3,713,468 km (0.118 R)
  • M8: 3,831,800 km (0.11 R)
  • M9: 4,610,756 km (0.105 R)
  • M10: 5,527,941 km (0.085 R)
  • M11: 6,030,739 km (0.095 R)
  • M12: 6,311,235 km (0.092 R)
  • M13: 6,596,069 km (0.059 R)
  • M14: 6,982,331 km (0.05 R)
  • M15: 7,525,670 km (0.077 R)
  • M16: 8,031,610 km (0.095 R)
  • M17: 8,340,380 km (0.11 R)
  • M18: 8,496,411 km (0.107 R)
  • M19: 8,863,973 km (0.062 R)
  • M20: 9,560,351 km (0.085 R)
  • M21: 10,219,031 km (0.104 R)
  • M22: 10,497,731 km (0.114 R)
  • M23: 12,104,861 km (0.087 R)
  • M24: 12,340,628 km (0.117 R)
  • M25: 12,757,108 km (0.083 R)
  • M26: 14,343,893 km (0.08 R)
  • M27: 14,531,040 km (0.042 R)
  • M28: 14,907,577 km (0.055 R)
  • M29: 15,351,135 km (0.073 R)
  • M30: 15,863,358 km (0.089 R)
  • M31: 16,511,416 km (0.058 R)
  • M32: 18,711,253 km (0.088 R)
  • M33: 21,856,399 km (0.071 R)
  • M34: 23,747,016 km (0.026 R)
  • M35: 24,936,469 km (0.109 R)
  • M36: 26,756,626 km (0.055 R)
  • M37: 26,987,157 km (0.029 R)
  • M38: 27,527,654 km (0.108 R)
  • M39: 28,697,808 km (0.102 R)
  • M40: 28,855,185 km (0.065 R)
  • M41: 29,645,660 km (0.106 R)
  • M42: 30,283,396 km (0.079 R)
  • M43: 30,443,466 km (0.106 R)
  • M44: 30,925,470 km (0.059 R)
  • M45: 31,248,302 km (0.087 R)
  • M46: 31,815,727 km (0.104 R)
  • M47: 32,304,912 km (0.083 R)
  • M48: 32,550,402 km (0.088 R)
  • M49: 34,036,508 km (0.102 R)
  • M50: 35,123,635 km (0.078 R)
  • M51: 35,207,709 km (0.102 R)
  • M52: 36,989,121 km (0.081 R)
  • M53: 38,626,021 km (0.095 R)
  • M54: 40,639,010 km (0.119 R)
  • M55: 41,435,917 km (0.115 R)
  • M56: 44,766,265 km (0.036 R)
  • M57: 45,956,615 km (0.115 R)
  • M58: 46,509,529 km (0.049 R)
  • M59: 47,622,089 km (0.08 R)
  • M60: 47,808,338 km (0.039 R)
  • M61: 47,901,537 km (0.083 R)
  • M62: 48,462,230 km (0.034 R)
  • M63: 49,118,965 km (0.119 R)
  • M64: 49,495,652 km (0.064 R)
  • M65: 50,346,565 km (0.109 R)
  • M66: 52,350,877 km (0.108 R)
  • M67: 52,831,984 km (0.081 R)
  • M68: 53,411,227 km (0.052 R)
  • M69: 55,357,046 km (0.114 R)
  • M70: 56,240,272 km (0.034 R)
  • M71: 56,930,367 km (0.077 R)
  • M72: 57,128,136 km (0.079 R)
  • M73: 57,425,087 km (0.109 R)
  • M74: 57,921,304 km (0.081 R)
  • M75: 58,020,637 km (0.108 R)
  • M76: 58,518,498 km (0.097 R)
  • M77: 59,618,641 km (0.116 R)
  • M78: 59,819,551 km (0.092 R)
  • M79: 62,960,209 km (0.097 R)
  • M80: 63,267,034 km (0.073 R)
  • M81: 63,984,655 km (0.086 R)
  • M82: 64,911,563 km (0.086 R)
  • M83: 65,118,008 km (0.086 R)
  • M84: 66,986,935 km (0.111 R)
  • M85: 68,557,712 km (0.077 R)
  • M86: 69,611,779 km (0.101 R)
  • M87: 70,671,081 km (0.049 R)

Kuiper Belt

Range: 31.2 - 51.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 15,273 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit