G0V Star System Generated (Seed: 1766452369)

Star Details

Spectral Class: G6V

Temperature: 5,520 K

Mass: 0.98 sol

Luminosity: 0.93 lux

Habitable Zone (HZ)

Inner Boundary: 0.92 AU

Outer Boundary: 1.32 AU

Physical Limits

Snow Line: 4.63 AU

Max System Radius: 19.8 AU

Planetary System (6 Planets)

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.5 AU - 0.72 AU

Year: 176 Days

Day: 43.4 Hours

Environment

Temp: 219 °C

Axial Tilt: 18.3 °

Atmosphere: Dense COâ‚‚

Biome: Volcanic/Barren

Planet 2 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.9

Radius: 11

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.65 AU - 5.99 AU

Year: 4527 Days

Day: 13.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 23.9 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (54)

Outer Limit: 104,505,329 km

  • M1: 137,929 km (0.062 R)
  • M2: 225,145 km (0.102 R)
  • M3: 319,092 km (0.088 R)
  • M4: 477,367 km (0.043 R)
  • M5: 601,832 km (0.069 R)
  • M6: 772,823 km (0.036 R)
  • M7: 923,468 km (0.119 R)
  • M8: 1,052,870 km (0.116 R)
  • M9: 1,221,616 km (0.088 R)
  • M10: 1,356,553 km (0.078 R)
  • M11: 1,595,611 km (0.059 R)
  • M12: 1,887,177 km (0.082 R)
  • M13: 1,965,267 km (0.082 R)
  • M14: 2,084,497 km (0.103 R)
  • M15: 2,267,904 km (0.108 R)
  • M16: 2,456,846 km (0.099 R)
  • M17: 2,727,917 km (0.078 R)
  • M18: 2,917,906 km (0.079 R)
  • M19: 3,147,090 km (0.079 R)
  • M20: 3,334,686 km (0.089 R)
  • M21: 3,489,819 km (0.067 R)
  • M22: 3,562,374 km (0.093 R)
  • M23: 3,919,763 km (0.087 R)
  • M24: 4,071,007 km (0.029 R)
  • M25: 4,497,211 km (0.108 R)
  • M26: 4,951,241 km (0.09 R)
  • M27: 5,101,287 km (0.1 R)
  • M28: 5,211,391 km (0.09 R)
  • M29: 5,294,568 km (0.099 R)
  • M30: 5,490,242 km (0.047 R)
  • M31: 5,631,462 km (0.059 R)
  • M32: 5,731,094 km (0.116 R)
  • M33: 6,149,968 km (0.085 R)
  • M34: 6,267,403 km (0.069 R)
  • M35: 6,459,636 km (0.063 R)
  • M36: 6,668,923 km (0.062 R)
  • M37: 6,804,609 km (0.088 R)
  • M38: 7,201,791 km (0.083 R)
  • M39: 7,294,542 km (0.052 R)
  • M40: 7,387,741 km (0.072 R)
  • M41: 7,496,948 km (0.102 R)
  • M42: 7,811,851 km (0.063 R)
  • M43: 8,131,243 km (0.04 R)
  • M44: 8,454,823 km (0.111 R)
  • M45: 8,552,809 km (0.047 R)
  • M46: 8,667,551 km (0.098 R)
  • M47: 9,098,094 km (0.034 R)
  • M48: 9,501,858 km (0.093 R)
  • M49: 9,586,680 km (0.058 R)
  • M50: 10,571,932 km (0.095 R)
  • M51: 11,228,667 km (0.091 R)
  • M52: 11,372,281 km (0.068 R)
  • M53: 11,716,206 km (0.094 R)
  • M54: 12,137,025 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.7

Radius: 11

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 4.23 AU - 6.69 AU

Year: 4707 Days

Day: 12.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 2.3 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (77)

Outer Limit: 104,505,329 km

  • M1: 145,858 km (0.082 R)
  • M2: 214,374 km (0.096 R)
  • M3: 421,866 km (0.093 R)
  • M4: 670,946 km (0.087 R)
  • M5: 813,663 km (0.081 R)
  • M6: 955,182 km (0.102 R)
  • M7: 1,183,319 km (0.071 R)
  • M8: 1,277,117 km (0.08 R)
  • M9: 1,457,981 km (0.102 R)
  • M10: 1,559,109 km (0.096 R)
  • M11: 1,647,671 km (0.097 R)
  • M12: 1,971,251 km (0.113 R)
  • M13: 2,100,055 km (0.096 R)
  • M14: 2,198,490 km (0.114 R)
  • M15: 2,298,422 km (0.082 R)
  • M16: 2,434,257 km (0.112 R)
  • M17: 3,266,470 km (0.097 R)
  • M18: 3,773,457 km (0.113 R)
  • M19: 3,873,837 km (0.098 R)
  • M20: 4,015,805 km (0.109 R)
  • M21: 4,159,569 km (0.099 R)
  • M22: 4,263,390 km (0.051 R)
  • M23: 4,347,015 km (0.079 R)
  • M24: 4,665,658 km (0.072 R)
  • M25: 5,102,335 km (0.111 R)
  • M26: 5,213,486 km (0.025 R)
  • M27: 5,689,656 km (0.11 R)
  • M28: 5,968,057 km (0.066 R)
  • M29: 7,002,078 km (0.068 R)
  • M30: 7,101,112 km (0.095 R)
  • M31: 7,250,410 km (0.092 R)
  • M32: 7,527,166 km (0.038 R)
  • M33: 7,756,051 km (0.12 R)
  • M34: 7,832,945 km (0.116 R)
  • M35: 8,483,097 km (0.082 R)
  • M36: 8,641,671 km (0.106 R)
  • M37: 8,881,476 km (0.045 R)
  • M38: 8,988,887 km (0.094 R)
  • M39: 9,150,603 km (0.065 R)
  • M40: 9,395,045 km (0.068 R)
  • M41: 9,504,402 km (0.118 R)
  • M42: 9,586,680 km (0.078 R)
  • M43: 9,751,986 km (0.043 R)
  • M44: 10,141,389 km (0.107 R)
  • M45: 10,366,235 km (0.115 R)
  • M46: 10,507,605 km (0.059 R)
  • M47: 11,165,985 km (0.074 R)
  • M48: 11,456,504 km (0.051 R)
  • M49: 11,573,490 km (0.049 R)
  • M50: 11,661,304 km (0.092 R)
  • M51: 12,283,182 km (0.071 R)
  • M52: 13,129,008 km (0.116 R)
  • M53: 13,220,712 km (0.026 R)
  • M54: 13,374,199 km (0.115 R)
  • M55: 13,466,501 km (0.114 R)
  • M56: 14,056,066 km (0.091 R)
  • M57: 14,432,754 km (0.064 R)
  • M58: 15,100,110 km (0.086 R)
  • M59: 15,647,788 km (0.094 R)
  • M60: 16,696,170 km (0.056 R)
  • M61: 16,862,074 km (0.053 R)
  • M62: 17,095,147 km (0.028 R)
  • M63: 17,834,909 km (0.118 R)
  • M64: 18,379,445 km (0.07 R)
  • M65: 18,653,658 km (0.093 R)
  • M66: 18,825,845 km (0.12 R)
  • M67: 19,659,554 km (0.108 R)
  • M68: 20,221,892 km (0.03 R)
  • M69: 20,398,866 km (0.095 R)
  • M70: 20,789,766 km (0.113 R)
  • M71: 21,651,150 km (0.075 R)
  • M72: 21,940,921 km (0.069 R)
  • M73: 22,268,391 km (0.094 R)
  • M74: 23,038,970 km (0.05 R)
  • M75: 23,594,726 km (0.116 R)
  • M76: 24,530,610 km (0.074 R)
  • M77: 24,984,191 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.1

Radius: 10.4

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 5.61 AU - 5.81 AU

Year: 5034 Days

Day: 13.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 34.5 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (84)

Outer Limit: 104,505,329 km

  • M1: 130,300 km (0.062 R)
  • M2: 242,349 km (0.095 R)
  • M3: 510,877 km (0.052 R)
  • M4: 729,140 km (0.037 R)
  • M5: 1,048,083 km (0.099 R)
  • M6: 1,208,751 km (0.079 R)
  • M7: 1,425,219 km (0.108 R)
  • M8: 1,522,009 km (0.084 R)
  • M9: 1,756,578 km (0.057 R)
  • M10: 1,878,351 km (0.066 R)
  • M11: 1,985,164 km (0.116 R)
  • M12: 2,130,573 km (0.114 R)
  • M13: 2,317,570 km (0.088 R)
  • M14: 2,490,505 km (0.049 R)
  • M15: 2,608,239 km (0.063 R)
  • M16: 2,869,736 km (0.074 R)
  • M17: 2,972,659 km (0.046 R)
  • M18: 3,682,501 km (0.108 R)
  • M19: 3,953,573 km (0.112 R)
  • M20: 4,395,784 km (0.056 R)
  • M21: 4,756,315 km (0.106 R)
  • M22: 5,051,621 km (0.051 R)
  • M23: 5,151,403 km (0.061 R)
  • M24: 5,327,479 km (0.098 R)
  • M25: 5,505,800 km (0.055 R)
  • M26: 5,841,946 km (0.056 R)
  • M27: 6,453,353 km (0.112 R)
  • M28: 6,588,889 km (0.106 R)
  • M29: 6,918,303 km (0.114 R)
  • M30: 7,224,829 km (0.05 R)
  • M31: 8,112,992 km (0.082 R)
  • M32: 8,230,127 km (0.112 R)
  • M33: 8,555,203 km (0.102 R)
  • M34: 9,710,099 km (0.105 R)
  • M35: 9,803,298 km (0.092 R)
  • M36: 10,147,822 km (0.118 R)
  • M37: 10,528,249 km (0.032 R)
  • M38: 10,656,156 km (0.053 R)
  • M39: 11,335,928 km (0.053 R)
  • M40: 11,763,778 km (0.096 R)
  • M41: 14,016,423 km (0.118 R)
  • M42: 14,298,265 km (0.08 R)
  • M43: 14,475,539 km (0.1 R)
  • M44: 14,617,806 km (0.101 R)
  • M45: 15,083,355 km (0.076 R)
  • M46: 15,882,507 km (0.086 R)
  • M47: 16,546,422 km (0.108 R)
  • M48: 16,695,272 km (0.103 R)
  • M49: 17,031,718 km (0.098 R)
  • M50: 17,257,162 km (0.1 R)
  • M51: 17,370,407 km (0.089 R)
  • M52: 17,711,341 km (0.098 R)
  • M53: 17,787,336 km (0.082 R)
  • M54: 17,863,482 km (0.108 R)
  • M55: 17,939,777 km (0.09 R)
  • M56: 18,747,156 km (0.084 R)
  • M57: 19,096,916 km (0.028 R)
  • M58: 20,238,348 km (0.101 R)
  • M59: 20,517,198 km (0.103 R)
  • M60: 20,637,026 km (0.075 R)
  • M61: 20,757,153 km (0.113 R)
  • M62: 21,442,312 km (0.082 R)
  • M63: 23,291,341 km (0.054 R)
  • M64: 23,374,667 km (0.107 R)
  • M65: 23,500,030 km (0.106 R)
  • M66: 23,751,056 km (0.117 R)
  • M67: 23,834,980 km (0.067 R)
  • M68: 24,171,725 km (0.076 R)
  • M69: 24,382,807 km (0.109 R)
  • M70: 24,467,480 km (0.096 R)
  • M71: 24,637,124 km (0.059 R)
  • M72: 25,619,982 km (0.098 R)
  • M73: 26,484,957 km (0.082 R)
  • M74: 26,572,023 km (0.103 R)
  • M75: 27,315,524 km (0.073 R)
  • M76: 27,756,239 km (0.036 R)
  • M77: 28,066,057 km (0.092 R)
  • M78: 28,288,060 km (0.059 R)
  • M79: 28,733,861 km (0.107 R)
  • M80: 28,868,051 km (0.069 R)
  • M81: 29,451,931 km (0.064 R)
  • M82: 29,542,139 km (0.089 R)
  • M83: 29,677,525 km (0.092 R)
  • M84: 29,767,882 km (0.087 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 819.1

Radius: 7.7

Gravity: 13.82 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 12.95 AU - 17.21 AU

Year: 21606 Days

Day: 19.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 17.6 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (98)

Outer Limit: 104,505,329 km

  • M1: 103,372 km (0.093 R)
  • M2: 431,440 km (0.096 R)
  • M3: 628,161 km (0.09 R)
  • M4: 775,216 km (0.065 R)
  • M5: 933,640 km (0.1 R)
  • M6: 1,191,248 km (0.085 R)
  • M7: 1,875,209 km (0.104 R)
  • M8: 2,126,683 km (0.091 R)
  • M9: 2,350,781 km (0.119 R)
  • M10: 2,582,658 km (0.094 R)
  • M11: 3,236,700 km (0.086 R)
  • M12: 3,364,905 km (0.11 R)
  • M13: 3,538,438 km (0.079 R)
  • M14: 3,804,423 km (0.096 R)
  • M15: 3,985,287 km (0.076 R)
  • M16: 4,688,547 km (0.045 R)
  • M17: 6,101,648 km (0.111 R)
  • M18: 7,185,485 km (0.077 R)
  • M19: 7,522,230 km (0.072 R)
  • M20: 8,681,314 km (0.056 R)
  • M21: 9,895,151 km (0.025 R)
  • M22: 10,458,686 km (0.109 R)
  • M23: 11,813,594 km (0.117 R)
  • M24: 12,210,777 km (0.102 R)
  • M25: 13,982,015 km (0.075 R)
  • M26: 14,261,614 km (0.082 R)
  • M27: 15,039,972 km (0.071 R)
  • M28: 15,470,365 km (0.113 R)
  • M29: 15,832,092 km (0.078 R)
  • M30: 15,904,797 km (0.067 R)
  • M31: 16,416,721 km (0.052 R)
  • M32: 16,711,728 km (0.07 R)
  • M33: 16,785,629 km (0.093 R)
  • M34: 17,008,380 km (0.077 R)
  • M35: 17,082,880 km (0.057 R)
  • M36: 20,148,440 km (0.105 R)
  • M37: 21,582,485 km (0.071 R)
  • M38: 22,884,435 km (0.083 R)
  • M39: 23,048,993 km (0.066 R)
  • M40: 24,044,417 km (0.042 R)
  • M41: 24,631,589 km (0.102 R)
  • M42: 24,969,231 km (0.054 R)
  • M43: 26,421,228 km (0.058 R)
  • M44: 26,853,566 km (0.071 R)
  • M45: 31,120,695 km (0.118 R)
  • M46: 31,302,906 km (0.103 R)
  • M47: 32,496,697 km (0.053 R)
  • M48: 34,173,988 km (0.091 R)
  • M49: 34,644,922 km (0.116 R)
  • M50: 34,739,318 km (0.108 R)
  • M51: 34,928,560 km (0.094 R)
  • M52: 35,117,951 km (0.106 R)
  • M53: 35,593,223 km (0.079 R)
  • M54: 37,515,107 km (0.118 R)
  • M55: 38,000,851 km (0.04 R)
  • M56: 39,372,065 km (0.051 R)
  • M57: 40,859,068 km (0.05 R)
  • M58: 41,058,781 km (0.076 R)
  • M59: 42,061,835 km (0.086 R)
  • M60: 44,913,320 km (0.084 R)
  • M61: 45,119,466 km (0.088 R)
  • M62: 45,429,133 km (0.034 R)
  • M63: 45,532,506 km (0.09 R)
  • M64: 47,511,536 km (0.1 R)
  • M65: 50,586,071 km (0.12 R)
  • M66: 51,876,951 km (0.106 R)
  • M67: 52,852,329 km (0.102 R)
  • M68: 55,703,665 km (0.078 R)
  • M69: 56,035,772 km (0.112 R)
  • M70: 56,813,531 km (0.115 R)
  • M71: 57,259,483 km (0.079 R)
  • M72: 57,482,982 km (0.074 R)
  • M73: 57,930,728 km (0.115 R)
  • M74: 58,829,662 km (0.11 R)
  • M75: 60,073,269 km (0.114 R)
  • M76: 60,755,286 km (0.107 R)
  • M77: 62,241,690 km (0.07 R)
  • M78: 63,971,640 km (0.076 R)
  • M79: 66,889,846 km (0.09 R)
  • M80: 67,596,695 km (0.101 R)
  • M81: 67,832,911 km (0.106 R)
  • M82: 68,305,939 km (0.112 R)
  • M83: 68,661,533 km (0.068 R)
  • M84: 69,970,664 km (0.037 R)
  • M85: 72,130,409 km (0.104 R)
  • M86: 74,799,683 km (0.11 R)
  • M87: 76,638,092 km (0.112 R)
  • M88: 78,243,426 km (0.092 R)
  • M89: 78,367,293 km (0.099 R)
  • M90: 78,863,809 km (0.069 R)
  • M91: 79,112,291 km (0.088 R)
  • M92: 80,734,680 km (0.066 R)
  • M93: 80,859,893 km (0.079 R)
  • M94: 81,110,619 km (0.115 R)
  • M95: 81,236,132 km (0.107 R)
  • M96: 82,872,732 km (0.119 R)
  • M97: 83,758,501 km (0.083 R)
  • M98: 84,520,104 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 875.1

Radius: 6.4

Gravity: 21.36 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 14.92 AU - 21.34 AU

Year: 28482 Days

Day: 17.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 42.8 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (93)

Outer Limit: 104,505,329 km

  • M1: 216,917 km (0.113 R)
  • M2: 1,770,341 km (0.073 R)
  • M3: 2,013,587 km (0.106 R)
  • M4: 2,139,250 km (0.101 R)
  • M5: 2,621,852 km (0.049 R)
  • M6: 3,137,217 km (0.06 R)
  • M7: 3,481,442 km (0.116 R)
  • M8: 4,152,089 km (0.105 R)
  • M9: 5,259,263 km (0.041 R)
  • M10: 5,432,946 km (0.079 R)
  • M11: 5,549,782 km (0.099 R)
  • M12: 5,785,847 km (0.108 R)
  • M13: 6,267,852 km (0.06 R)
  • M14: 6,951,663 km (0.1 R)
  • M15: 7,658,962 km (0.12 R)
  • M16: 10,635,511 km (0.094 R)
  • M17: 11,824,216 km (0.118 R)
  • M18: 12,204,344 km (0.085 R)
  • M19: 12,665,704 km (0.089 R)
  • M20: 12,898,628 km (0.065 R)
  • M21: 14,405,826 km (0.094 R)
  • M22: 16,219,252 km (0.081 R)
  • M23: 17,238,462 km (0.12 R)
  • M24: 17,324,331 km (0.093 R)
  • M25: 17,929,454 km (0.093 R)
  • M26: 20,146,196 km (0.05 R)
  • M27: 21,148,651 km (0.108 R)
  • M28: 23,391,572 km (0.079 R)
  • M29: 23,772,747 km (0.069 R)
  • M30: 24,251,909 km (0.032 R)
  • M31: 24,831,302 km (0.091 R)
  • M32: 25,415,182 km (0.109 R)
  • M33: 25,708,843 km (0.088 R)
  • M34: 26,497,373 km (0.034 R)
  • M35: 26,894,705 km (0.082 R)
  • M36: 26,994,337 km (0.099 R)
  • M37: 28,098,220 km (0.086 R)
  • M38: 29,216,913 km (0.103 R)
  • M39: 29,421,862 km (0.104 R)
  • M40: 30,246,445 km (0.094 R)
  • M41: 30,349,967 km (0.097 R)
  • M42: 32,659,010 km (0.115 R)
  • M43: 33,512,616 km (0.109 R)
  • M44: 33,619,877 km (0.114 R)
  • M45: 37,666,201 km (0.027 R)
  • M46: 40,257,834 km (0.098 R)
  • M47: 40,828,849 km (0.118 R)
  • M48: 43,022,852 km (0.103 R)
  • M49: 44,193,006 km (0.098 R)
  • M50: 44,310,590 km (0.115 R)
  • M51: 44,428,174 km (0.113 R)
  • M52: 45,255,001 km (0.099 R)
  • M53: 47,283,848 km (0.105 R)
  • M54: 50,812,562 km (0.083 R)
  • M55: 53,796,441 km (0.118 R)
  • M56: 55,056,355 km (0.044 R)
  • M57: 55,182,915 km (0.071 R)
  • M58: 55,563,043 km (0.096 R)
  • M59: 55,689,902 km (0.103 R)
  • M60: 57,605,203 km (0.043 R)
  • M61: 60,322,649 km (0.118 R)
  • M62: 61,631,331 km (0.095 R)
  • M63: 61,894,174 km (0.116 R)
  • M64: 62,157,466 km (0.074 R)
  • M65: 65,881,556 km (0.058 R)
  • M66: 66,823,723 km (0.086 R)
  • M67: 67,634,993 km (0.055 R)
  • M68: 68,313,419 km (0.037 R)
  • M69: 68,449,403 km (0.096 R)
  • M70: 68,857,955 km (0.116 R)
  • M71: 69,540,421 km (0.082 R)
  • M72: 71,739,659 km (0.085 R)
  • M73: 72,016,116 km (0.113 R)
  • M74: 73,961,486 km (0.104 R)
  • M75: 74,240,786 km (0.052 R)
  • M76: 76,629,265 km (0.11 R)
  • M77: 76,911,856 km (0.078 R)
  • M78: 79,900,522 km (0.055 R)
  • M79: 81,481,173 km (0.079 R)
  • M80: 84,381,277 km (0.043 R)
  • M81: 85,843,896 km (0.094 R)
  • M82: 86,284,461 km (0.092 R)
  • M83: 87,020,184 km (0.043 R)
  • M84: 88,201,708 km (0.098 R)
  • M85: 90,879,510 km (0.117 R)
  • M86: 91,328,303 km (0.077 R)
  • M87: 92,528,976 km (0.083 R)
  • M88: 96,009,819 km (0.045 R)
  • M89: 96,314,400 km (0.029 R)
  • M90: 98,763,617 km (0.044 R)
  • M91: 103,566,905 km (0.092 R)
  • M92: 103,723,085 km (0.108 R)
  • M93: 104,348,704 km (0.065 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 15,712 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit