G6V Star System Generated (Seed: 1766388671)

Star Details

Spectral Class: G9V

Temperature: 5,240 K

Mass: 0.91 sol

Luminosity: 0.72 lux

Habitable Zone (HZ)

Inner Boundary: 0.81 AU

Outer Boundary: 1.17 AU

Physical Limits

Snow Line: 4.07 AU

Max System Radius: 19.1 AU

Planetary System (10 Planets)

Planet 1 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.85

Radius: 1.28

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.75 AU - 1.19 AU

Year: 366 Days

Day: 13.9 Hours

Environment

Temp: 16 °C

Axial Tilt: 39 °

Atmosphere: Nâ‚‚, Oâ‚‚

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.85 AU - 1.27 AU

Year: 418 Days

Day: 39.1 Hours

Environment

Temp: 15 °C

Axial Tilt: 36.7 °

Atmosphere: Nâ‚‚, Oâ‚‚

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.66 AU - 1.66 AU

Year: 819 Days

Day: 33.5 Hours

Environment

Temp: -55 °C

Axial Tilt: 15.9 °

Atmosphere: Thin Nâ‚‚/CHâ‚„

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,825,329 km

  • M1: 1,168,659 km (0.113 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.96 AU - 2.38 AU

Year: 1224 Days

Day: 44.3 Hours

Environment

Temp: -93 °C

Axial Tilt: 18 °

Atmosphere: Thin Nâ‚‚/CHâ‚„

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.47

Radius: 1.44

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.96 AU - 2.5 AU

Year: 1275 Days

Day: 14 Hours

Environment

Temp: -93 °C

Axial Tilt: 152.1 °

Atmosphere: Thin Nâ‚‚/CHâ‚„

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,825,329 km

  • M1: 1,458,878 km (0.101 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.53 AU - 4.03 AU

Year: 2274 Days

Day: 22.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 9.3 °

Atmosphere: Thin Nâ‚‚/CHâ‚„

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 93,825,329 km

  • M1: 136,583 km (0.118 R)
  • M2: 2,270,896 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.3

Radius: 11.2

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 6.43 AU - 6.85 AU

Year: 6551 Days

Day: 6.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 27.6 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (83)

Outer Limit: 93,825,329 km

  • M1: 148,102 km (0.104 R)
  • M2: 252,372 km (0.104 R)
  • M3: 448,195 km (0.081 R)
  • M4: 586,274 km (0.116 R)
  • M5: 767,287 km (0.095 R)
  • M6: 879,635 km (0.057 R)
  • M7: 997,967 km (0.116 R)
  • M8: 1,284,747 km (0.051 R)
  • M9: 1,386,323 km (0.03 R)
  • M10: 1,782,309 km (0.062 R)
  • M11: 1,993,541 km (0.102 R)
  • M12: 2,072,379 km (0.111 R)
  • M13: 2,233,347 km (0.079 R)
  • M14: 2,896,514 km (0.115 R)
  • M15: 3,355,630 km (0.058 R)
  • M16: 3,763,882 km (0.052 R)
  • M17: 4,011,467 km (0.117 R)
  • M18: 4,213,424 km (0.097 R)
  • M19: 4,341,480 km (0.081 R)
  • M20: 4,733,277 km (0.091 R)
  • M21: 4,893,197 km (0.102 R)
  • M22: 5,191,046 km (0.118 R)
  • M23: 5,300,851 km (0.074 R)
  • M24: 5,467,054 km (0.081 R)
  • M25: 5,635,053 km (0.085 R)
  • M26: 5,947,413 km (0.034 R)
  • M27: 6,033,581 km (0.099 R)
  • M28: 6,236,286 km (0.07 R)
  • M29: 6,353,122 km (0.054 R)
  • M30: 6,441,385 km (0.108 R)
  • M31: 6,918,303 km (0.111 R)
  • M32: 8,192,279 km (0.057 R)
  • M33: 8,481,601 km (0.116 R)
  • M34: 8,578,839 km (0.108 R)
  • M35: 8,708,990 km (0.09 R)
  • M36: 9,136,690 km (0.102 R)
  • M37: 9,369,763 km (0.099 R)
  • M38: 10,252,840 km (0.063 R)
  • M39: 10,529,895 km (0.12 R)
  • M40: 11,340,267 km (0.112 R)
  • M41: 11,554,940 km (0.09 R)
  • M42: 11,879,567 km (0.064 R)
  • M43: 12,134,033 km (0.089 R)
  • M44: 12,390,444 km (0.11 R)
  • M45: 12,464,046 km (0.054 R)
  • M46: 12,908,651 km (0.116 R)
  • M47: 13,057,949 km (0.083 R)
  • M48: 13,207,846 km (0.069 R)
  • M49: 13,737,124 km (0.095 R)
  • M50: 13,813,269 km (0.104 R)
  • M51: 15,051,341 km (0.093 R)
  • M52: 15,287,406 km (0.074 R)
  • M53: 15,922,898 km (0.114 R)
  • M54: 16,933,133 km (0.101 R)
  • M55: 17,014,963 km (0.107 R)
  • M56: 17,632,054 km (0.12 R)
  • M57: 18,972,900 km (0.097 R)
  • M58: 19,913,870 km (0.062 R)
  • M59: 20,520,490 km (0.104 R)
  • M60: 20,694,921 km (0.029 R)
  • M61: 22,108,172 km (0.08 R)
  • M62: 22,646,126 km (0.084 R)
  • M63: 22,871,570 km (0.117 R)
  • M64: 23,598,017 km (0.104 R)
  • M65: 23,689,421 km (0.08 R)
  • M66: 23,918,306 km (0.027 R)
  • M67: 24,609,299 km (0.099 R)
  • M68: 26,483,909 km (0.067 R)
  • M69: 26,959,631 km (0.098 R)
  • M70: 27,150,817 km (0.12 R)
  • M71: 27,246,559 km (0.032 R)
  • M72: 28,598,475 km (0.06 R)
  • M73: 28,695,864 km (0.111 R)
  • M74: 30,071,117 km (0.029 R)
  • M75: 30,567,632 km (0.099 R)
  • M76: 31,921,343 km (0.112 R)
  • M77: 32,072,886 km (0.063 R)
  • M78: 32,834,638 km (0.087 R)
  • M79: 32,987,677 km (0.09 R)
  • M80: 33,396,977 km (0.117 R)
  • M81: 33,705,148 km (0.032 R)
  • M82: 34,375,945 km (0.111 R)
  • M83: 34,790,930 km (0.034 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.1

Radius: 9.7

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 8.52 AU - 13.52 AU

Year: 14007 Days

Day: 5.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 21.8 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (82)

Outer Limit: 93,825,329 km

  • M1: 121,922 km (0.096 R)
  • M2: 198,068 km (0.06 R)
  • M3: 328,966 km (0.057 R)
  • M4: 396,883 km (0.088 R)
  • M5: 592,258 km (0.091 R)
  • M6: 803,640 km (0.045 R)
  • M7: 935,735 km (0.092 R)
  • M8: 1,022,053 km (0.071 R)
  • M9: 1,093,261 km (0.08 R)
  • M10: 1,515,277 km (0.074 R)
  • M11: 1,576,612 km (0.094 R)
  • M12: 1,852,470 km (0.085 R)
  • M13: 2,596,121 km (0.08 R)
  • M14: 2,719,988 km (0.109 R)
  • M15: 2,999,737 km (0.033 R)
  • M16: 3,209,174 km (0.041 R)
  • M17: 3,559,532 km (0.106 R)
  • M18: 3,837,634 km (0.11 R)
  • M19: 4,065,173 km (0.118 R)
  • M20: 4,151,640 km (0.073 R)
  • M21: 4,926,707 km (0.077 R)
  • M22: 4,988,191 km (0.097 R)
  • M23: 5,521,209 km (0.091 R)
  • M24: 5,778,367 km (0.119 R)
  • M25: 5,908,368 km (0.107 R)
  • M26: 6,573,330 km (0.109 R)
  • M27: 6,709,165 km (0.101 R)
  • M28: 7,157,061 km (0.032 R)
  • M29: 7,226,774 km (0.061 R)
  • M30: 8,374,040 km (0.108 R)
  • M31: 9,006,390 km (0.109 R)
  • M32: 9,692,596 km (0.1 R)
  • M33: 9,964,116 km (0.119 R)
  • M34: 10,159,491 km (0.104 R)
  • M35: 10,395,706 km (0.05 R)
  • M36: 10,593,923 km (0.074 R)
  • M37: 10,753,394 km (0.056 R)
  • M38: 10,873,521 km (0.097 R)
  • M39: 11,358,667 km (0.062 R)
  • M40: 11,440,198 km (0.063 R)
  • M41: 11,562,868 km (0.082 R)
  • M42: 12,224,390 km (0.064 R)
  • M43: 12,391,790 km (0.111 R)
  • M44: 12,644,162 km (0.09 R)
  • M45: 13,239,860 km (0.102 R)
  • M46: 13,801,152 km (0.095 R)
  • M47: 14,635,459 km (0.118 R)
  • M48: 14,991,651 km (0.109 R)
  • M49: 15,170,720 km (0.05 R)
  • M50: 15,440,894 km (0.095 R)
  • M51: 15,848,997 km (0.062 R)
  • M52: 16,123,060 km (0.084 R)
  • M53: 16,537,147 km (0.116 R)
  • M54: 17,141,373 km (0.101 R)
  • M55: 17,563,837 km (0.104 R)
  • M56: 17,942,469 km (0.058 R)
  • M57: 18,659,342 km (0.117 R)
  • M58: 19,045,604 km (0.063 R)
  • M59: 22,076,158 km (0.066 R)
  • M60: 22,741,270 km (0.031 R)
  • M61: 23,412,815 km (0.057 R)
  • M62: 23,672,965 km (0.05 R)
  • M63: 24,090,942 km (0.097 R)
  • M64: 24,300,977 km (0.11 R)
  • M65: 24,775,651 km (0.073 R)
  • M66: 25,253,317 km (0.117 R)
  • M67: 25,627,013 km (0.103 R)
  • M68: 26,758,870 km (0.093 R)
  • M69: 27,139,747 km (0.081 R)
  • M70: 27,358,309 km (0.075 R)
  • M71: 27,522,567 km (0.117 R)
  • M72: 28,792,653 km (0.105 R)
  • M73: 29,631,149 km (0.098 R)
  • M74: 29,912,543 km (0.083 R)
  • M75: 30,648,116 km (0.082 R)
  • M76: 31,160,937 km (0.099 R)
  • M77: 31,275,230 km (0.101 R)
  • M78: 31,791,343 km (0.044 R)
  • M79: 34,296,359 km (0.06 R)
  • M80: 36,261,477 km (0.088 R)
  • M81: 40,237,638 km (0.066 R)
  • M82: 41,677,368 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 140.9

Radius: 3.9

Gravity: 9.26 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 13.39 AU - 17.31 AU

Year: 23027 Days

Day: 24.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 10.7 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (91)

Outer Limit: 93,825,329 km

  • M1: 77,342 km (0.057 R)
  • M2: 187,895 km (0.079 R)
  • M3: 243,396 km (0.038 R)
  • M4: 428,149 km (0.029 R)
  • M5: 503,397 km (0.101 R)
  • M6: 566,826 km (0.074 R)
  • M7: 616,194 km (0.077 R)
  • M8: 737,069 km (0.107 R)
  • M9: 884,273 km (0.109 R)
  • M10: 1,060,948 km (0.117 R)
  • M11: 1,514,678 km (0.108 R)
  • M12: 1,920,837 km (0.095 R)
  • M13: 2,123,093 km (0.081 R)
  • M14: 2,854,926 km (0.119 R)
  • M15: 3,533,950 km (0.059 R)
  • M16: 3,656,920 km (0.075 R)
  • M17: 3,844,216 km (0.119 R)
  • M18: 3,907,197 km (0.077 R)
  • M19: 4,996,718 km (0.086 R)
  • M20: 5,663,775 km (0.119 R)
  • M21: 6,136,056 km (0.069 R)
  • M22: 6,209,808 km (0.081 R)
  • M23: 6,507,956 km (0.104 R)
  • M24: 6,545,505 km (0.094 R)
  • M25: 6,772,595 km (0.094 R)
  • M26: 7,469,272 km (0.11 R)
  • M27: 7,906,098 km (0.114 R)
  • M28: 8,391,992 km (0.05 R)
  • M29: 8,597,390 km (0.061 R)
  • M30: 8,846,021 km (0.103 R)
  • M31: 9,477,773 km (0.078 R)
  • M32: 9,820,502 km (0.06 R)
  • M33: 10,430,263 km (0.102 R)
  • M34: 11,412,971 km (0.091 R)
  • M35: 11,549,255 km (0.093 R)
  • M36: 11,777,541 km (0.072 R)
  • M37: 12,007,473 km (0.113 R)
  • M38: 13,273,819 km (0.111 R)
  • M39: 14,385,780 km (0.117 R)
  • M40: 14,434,699 km (0.093 R)
  • M41: 14,730,005 km (0.119 R)
  • M42: 15,076,922 km (0.095 R)
  • M43: 15,126,738 km (0.108 R)
  • M44: 15,376,567 km (0.076 R)
  • M45: 16,645,755 km (0.064 R)
  • M46: 17,737,520 km (0.081 R)
  • M47: 19,283,016 km (0.071 R)
  • M48: 19,716,850 km (0.091 R)
  • M49: 20,981,999 km (0.059 R)
  • M50: 21,428,100 km (0.112 R)
  • M51: 22,500,268 km (0.1 R)
  • M52: 23,532,044 km (0.098 R)
  • M53: 24,345,109 km (0.108 R)
  • M54: 24,520,437 km (0.053 R)
  • M55: 24,579,080 km (0.067 R)
  • M56: 25,403,962 km (0.037 R)
  • M57: 25,879,235 km (0.087 R)
  • M58: 25,998,614 km (0.113 R)
  • M59: 26,058,303 km (0.099 R)
  • M60: 26,237,821 km (0.08 R)
  • M61: 27,020,068 km (0.066 R)
  • M62: 27,505,364 km (0.081 R)
  • M63: 27,627,136 km (0.117 R)
  • M64: 27,993,502 km (0.086 R)
  • M65: 28,484,482 km (0.066 R)
  • M66: 28,792,803 km (0.091 R)
  • M67: 30,855,159 km (0.076 R)
  • M68: 31,108,279 km (0.084 R)
  • M69: 32,128,088 km (0.087 R)
  • M70: 32,320,470 km (0.037 R)
  • M71: 33,417,920 km (0.037 R)
  • M72: 33,938,671 km (0.087 R)
  • M73: 34,396,590 km (0.094 R)
  • M74: 34,462,113 km (0.082 R)
  • M75: 35,450,656 km (0.096 R)
  • M76: 35,915,158 km (0.071 R)
  • M77: 36,314,883 km (0.065 R)
  • M78: 36,783,124 km (0.104 R)
  • M79: 36,917,314 km (0.106 R)
  • M80: 37,657,973 km (0.051 R)
  • M81: 38,267,734 km (0.114 R)
  • M82: 39,428,164 km (0.111 R)
  • M83: 39,496,830 km (0.104 R)
  • M84: 40,185,279 km (0.025 R)
  • M85: 40,808,205 km (0.092 R)
  • M86: 43,402,830 km (0.103 R)
  • M87: 43,686,468 km (0.112 R)
  • M88: 43,828,436 km (0.034 R)
  • M89: 46,701,912 km (0.034 R)
  • M90: 47,210,994 km (0.075 R)
  • M91: 47,721,870 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.7

Radius: 4.5

Gravity: 38.45 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 16.3 AU - 16.72 AU

Year: 25686 Days

Day: 20.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 29.9 °

Atmosphere: Hâ‚‚, CHâ‚„

Biome: None

Satellites (99)

Outer Limit: 93,825,329 km

  • M1: 89,160 km (0.058 R)
  • M2: 471,981 km (0.059 R)
  • M3: 643,869 km (0.073 R)
  • M4: 806,183 km (0.079 R)
  • M5: 834,457 km (0.102 R)
  • M6: 1,200,074 km (0.079 R)
  • M7: 1,265,448 km (0.093 R)
  • M8: 1,434,045 km (0.085 R)
  • M9: 2,888,735 km (0.117 R)
  • M10: 3,292,051 km (0.108 R)
  • M11: 3,337,977 km (0.054 R)
  • M12: 3,712,870 km (0.113 R)
  • M13: 6,057,218 km (0.043 R)
  • M14: 6,113,616 km (0.08 R)
  • M15: 6,455,298 km (0.082 R)
  • M16: 7,038,580 km (0.099 R)
  • M17: 7,097,821 km (0.059 R)
  • M18: 8,505,985 km (0.094 R)
  • M19: 9,666,117 km (0.115 R)
  • M20: 9,798,062 km (0.055 R)
  • M21: 10,670,068 km (0.117 R)
  • M22: 11,149,978 km (0.086 R)
  • M23: 11,636,770 km (0.046 R)
  • M24: 11,777,092 km (0.086 R)
  • M25: 12,272,860 km (0.114 R)
  • M26: 12,920,170 km (0.043 R)
  • M27: 14,172,902 km (0.103 R)
  • M28: 15,233,252 km (0.114 R)
  • M29: 15,850,642 km (0.059 R)
  • M30: 16,240,644 km (0.096 R)
  • M31: 17,109,658 km (0.116 R)
  • M32: 17,189,394 km (0.079 R)
  • M33: 20,141,558 km (0.036 R)
  • M34: 20,563,873 km (0.074 R)
  • M35: 20,818,638 km (0.111 R)
  • M36: 23,334,575 km (0.111 R)
  • M37: 23,600,261 km (0.116 R)
  • M38: 25,488,036 km (0.095 R)
  • M39: 25,761,651 km (0.089 R)
  • M40: 26,773,232 km (0.111 R)
  • M41: 26,958,583 km (0.1 R)
  • M42: 27,144,384 km (0.088 R)
  • M43: 29,120,273 km (0.091 R)
  • M44: 30,656,493 km (0.12 R)
  • M45: 30,753,283 km (0.039 R)
  • M46: 31,044,550 km (0.064 R)
  • M47: 31,141,938 km (0.056 R)
  • M48: 31,923,886 km (0.089 R)
  • M49: 32,120,458 km (0.095 R)
  • M50: 34,207,947 km (0.115 R)
  • M51: 34,509,686 km (0.115 R)
  • M52: 35,420,437 km (0.111 R)
  • M53: 36,544,067 km (0.101 R)
  • M54: 36,955,611 km (0.051 R)
  • M55: 37,472,172 km (0.104 R)
  • M56: 39,456,738 km (0.101 R)
  • M57: 41,154,374 km (0.106 R)
  • M58: 41,368,150 km (0.12 R)
  • M59: 42,767,338 km (0.095 R)
  • M60: 42,875,647 km (0.099 R)
  • M61: 44,291,292 km (0.059 R)
  • M62: 44,510,453 km (0.088 R)
  • M63: 46,165,753 km (0.056 R)
  • M64: 46,721,958 km (0.093 R)
  • M65: 50,562,584 km (0.109 R)
  • M66: 51,250,735 km (0.113 R)
  • M67: 52,984,723 km (0.085 R)
  • M68: 54,151,437 km (0.115 R)
  • M69: 56,866,639 km (0.07 R)
  • M70: 57,821,522 km (0.106 R)
  • M71: 58,781,641 km (0.032 R)
  • M72: 59,746,996 km (0.113 R)
  • M73: 63,043,385 km (0.069 R)
  • M74: 63,660,327 km (0.075 R)
  • M75: 64,279,213 km (0.072 R)
  • M76: 64,403,230 km (0.068 R)
  • M77: 65,149,125 km (0.064 R)
  • M78: 65,273,590 km (0.096 R)
  • M79: 66,523,780 km (0.086 R)
  • M80: 67,026,129 km (0.067 R)
  • M81: 68,034,419 km (0.069 R)
  • M82: 69,047,795 km (0.039 R)
  • M83: 70,705,040 km (0.076 R)
  • M84: 73,409,770 km (0.075 R)
  • M85: 74,449,026 km (0.057 R)
  • M86: 76,542,050 km (0.05 R)
  • M87: 78,389,284 km (0.059 R)
  • M88: 78,919,758 km (0.091 R)
  • M89: 83,611,896 km (0.041 R)
  • M90: 84,833,063 km (0.118 R)
  • M91: 85,514,032 km (0.115 R)
  • M92: 86,744,176 km (0.119 R)
  • M93: 87,292,901 km (0.093 R)
  • M94: 87,430,232 km (0.104 R)
  • M95: 88,393,642 km (0.09 R)
  • M96: 88,669,500 km (0.068 R)
  • M97: 89,084,036 km (0.065 R)
  • M98: 92,002,840 km (0.077 R)
  • M99: 92,562,336 km (0.058 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 202 - 17,510 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit