Star System Generated (Seed: 1766681227)
Star Details
Spectral Class: M6V
Temperature: 2,833 K
Mass: 0.29 sol
Luminosity: 0.01 lux
Habitable Zone (HZ)
Inner Boundary: 0.1 AU
Outer Boundary: 0.14 AU
Physical Limits
Snow Line: 0.48 AU
Max System Radius: 10.8 AU
Planetary System (6 Planets)
Planet 1 - Gas Giant
Semi-Major Axis: 1.11 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 565.3
Radius: 12.6
Gravity: 3.56 G
Time & Orbit
Eccentricity (e): 0.185
Orbit Range: 0.9 AU - 1.32 AU
Year: 793 Days
Day: 11.1 Hours
Environment
Temp: -173 °C
Axial Tilt: 11.4 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (46)
Outer Limit: 69,747,765 km
- M1: 157,975 km (0.083 R)
- M2: 236,963 km (0.049 R)
- M3: 358,436 km (0.075 R)
- M4: 495,169 km (0.073 R)
- M5: 615,595 km (0.104 R)
- M6: 712,385 km (0.108 R)
- M7: 874,100 km (0.082 R)
- M8: 985,551 km (0.085 R)
- M9: 1,150,258 km (0.114 R)
- M10: 1,230,143 km (0.107 R)
- M11: 1,408,763 km (0.101 R)
- M12: 1,555,519 km (0.077 R)
- M13: 1,644,679 km (0.05 R)
- M14: 1,821,204 km (0.032 R)
- M15: 1,922,931 km (0.052 R)
- M16: 2,147,627 km (0.111 R)
- M17: 2,255,637 km (0.086 R)
- M18: 2,413,014 km (0.063 R)
- M19: 2,501,127 km (0.106 R)
- M20: 2,631,277 km (0.099 R)
- M21: 2,839,517 km (0.083 R)
- M22: 2,984,178 km (0.064 R)
- M23: 3,227,873 km (0.072 R)
- M24: 3,334,387 km (0.084 R)
- M25: 3,541,879 km (0.119 R)
- M26: 3,633,433 km (0.113 R)
- M27: 3,772,410 km (0.078 R)
- M28: 4,017,301 km (0.068 R)
- M29: 4,248,131 km (0.04 R)
- M30: 4,384,863 km (0.098 R)
- M31: 4,552,862 km (0.092 R)
- M32: 4,864,773 km (0.055 R)
- M33: 5,038,755 km (0.119 R)
- M34: 5,121,483 km (0.096 R)
- M35: 5,214,982 km (0.116 R)
- M36: 5,350,966 km (0.114 R)
- M37: 5,467,054 km (0.07 R)
- M38: 5,573,418 km (0.059 R)
- M39: 5,788,091 km (0.111 R)
- M40: 5,983,616 km (0.06 R)
- M41: 6,336,667 km (0.115 R)
- M42: 6,583,353 km (0.091 R)
- M43: 6,673,860 km (0.096 R)
- M44: 6,925,035 km (0.116 R)
- M45: 7,366,050 km (0.044 R)
- M46: 7,495,452 km (0.099 R)
Planet 2 - Gas Giant
Semi-Major Axis: 1.9 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 762.8
Radius: 14.9
Gravity: 3.44 G
Time & Orbit
Eccentricity (e): 0.249
Orbit Range: 1.43 AU - 2.37 AU
Year: 1776 Days
Day: 13.2 Hours
Environment
Temp: -194 °C
Axial Tilt: 8.4 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (63)
Outer Limit: 69,747,765 km
- M1: 219,759 km (0.096 R)
- M2: 374,593 km (0.115 R)
- M3: 556,205 km (0.11 R)
- M4: 668,553 km (0.077 R)
- M5: 766,839 km (0.066 R)
- M6: 937,829 km (0.067 R)
- M7: 1,122,882 km (0.113 R)
- M8: 1,521,261 km (0.1 R)
- M9: 1,721,124 km (0.059 R)
- M10: 2,136,258 km (0.093 R)
- M11: 2,230,205 km (0.115 R)
- M12: 2,398,203 km (0.045 R)
- M13: 2,496,190 km (0.071 R)
- M14: 2,633,222 km (0.055 R)
- M15: 2,928,079 km (0.085 R)
- M16: 3,086,354 km (0.103 R)
- M17: 3,247,471 km (0.078 R)
- M18: 3,564,319 km (0.03 R)
- M19: 3,876,978 km (0.105 R)
- M20: 4,036,749 km (0.115 R)
- M21: 4,183,953 km (0.11 R)
- M22: 4,408,200 km (0.067 R)
- M23: 4,559,893 km (0.105 R)
- M24: 4,697,972 km (0.091 R)
- M25: 4,946,902 km (0.107 R)
- M26: 5,073,013 km (0.108 R)
- M27: 5,216,179 km (0.093 R)
- M28: 5,506,698 km (0.071 R)
- M29: 5,637,596 km (0.068 R)
- M30: 5,986,009 km (0.092 R)
- M31: 6,171,361 km (0.031 R)
- M32: 6,341,603 km (0.084 R)
- M33: 6,721,732 km (0.065 R)
- M34: 6,896,911 km (0.116 R)
- M35: 7,002,826 km (0.086 R)
- M36: 7,144,794 km (0.042 R)
- M37: 7,540,331 km (0.066 R)
- M38: 7,740,942 km (0.068 R)
- M39: 8,165,800 km (0.051 R)
- M40: 8,259,298 km (0.07 R)
- M41: 8,409,495 km (0.096 R)
- M42: 8,522,740 km (0.095 R)
- M43: 8,636,584 km (0.115 R)
- M44: 9,096,747 km (0.06 R)
- M45: 9,447,255 km (0.098 R)
- M46: 9,564,989 km (0.079 R)
- M47: 9,901,584 km (0.11 R)
- M48: 10,790,644 km (0.073 R)
- M49: 10,893,268 km (0.1 R)
- M50: 10,996,341 km (0.104 R)
- M51: 11,182,441 km (0.115 R)
- M52: 11,621,062 km (0.058 R)
- M53: 12,450,732 km (0.106 R)
- M54: 12,558,442 km (0.097 R)
- M55: 12,861,827 km (0.106 R)
- M56: 13,123,772 km (0.078 R)
- M57: 13,321,391 km (0.106 R)
- M58: 13,453,636 km (0.115 R)
- M59: 14,054,570 km (0.101 R)
- M60: 14,641,443 km (0.105 R)
- M61: 14,778,026 km (0.05 R)
- M62: 15,259,581 km (0.079 R)
- M63: 15,629,836 km (0.082 R)
Planet 3 - Gas Giant
Semi-Major Axis: 2.07 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 860.7
Radius: 13.8
Gravity: 4.52 G
Time & Orbit
Eccentricity (e): 0.238
Orbit Range: 1.58 AU - 2.56 AU
Year: 2020 Days
Day: 12.6 Hours
Environment
Temp: -203 °C
Axial Tilt: 28.3 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (68)
Outer Limit: 69,747,765 km
- M1: 241,301 km (0.114 R)
- M2: 351,256 km (0.11 R)
- M3: 443,857 km (0.055 R)
- M4: 548,426 km (0.058 R)
- M5: 737,667 km (0.039 R)
- M6: 969,843 km (0.06 R)
- M7: 1,056,161 km (0.073 R)
- M8: 1,175,690 km (0.103 R)
- M9: 1,300,305 km (0.086 R)
- M10: 1,484,908 km (0.113 R)
- M11: 1,678,488 km (0.083 R)
- M12: 1,832,424 km (0.119 R)
- M13: 2,078,962 km (0.113 R)
- M14: 2,219,284 km (0.034 R)
- M15: 2,362,749 km (0.111 R)
- M16: 2,482,726 km (0.109 R)
- M17: 2,756,490 km (0.08 R)
- M18: 2,897,262 km (0.063 R)
- M19: 3,259,738 km (0.084 R)
- M20: 3,378,967 km (0.099 R)
- M21: 3,933,227 km (0.048 R)
- M22: 4,318,891 km (0.091 R)
- M23: 4,499,754 km (0.054 R)
- M24: 4,599,536 km (0.088 R)
- M25: 4,835,302 km (0.035 R)
- M26: 5,266,144 km (0.069 R)
- M27: 5,709,552 km (0.115 R)
- M28: 5,908,368 km (0.078 R)
- M29: 6,313,329 km (0.049 R)
- M30: 6,575,724 km (0.101 R)
- M31: 6,765,265 km (0.119 R)
- M32: 7,364,853 km (0.075 R)
- M33: 7,601,517 km (0.099 R)
- M34: 7,720,896 km (0.086 R)
- M35: 7,840,724 km (0.079 R)
- M36: 8,306,272 km (0.102 R)
- M37: 8,697,770 km (0.11 R)
- M38: 8,822,534 km (0.065 R)
- M39: 9,053,065 km (0.115 R)
- M40: 9,158,531 km (0.052 R)
- M41: 9,285,540 km (0.096 R)
- M42: 9,455,932 km (0.104 R)
- M43: 9,605,829 km (0.113 R)
- M44: 10,038,616 km (0.034 R)
- M45: 10,169,663 km (0.08 R)
- M46: 10,279,318 km (0.048 R)
- M47: 10,389,423 km (0.095 R)
- M48: 10,544,107 km (0.065 R)
- M49: 11,465,929 km (0.051 R)
- M50: 11,625,999 km (0.117 R)
- M51: 12,932,586 km (0.079 R)
- M52: 13,123,024 km (0.119 R)
- M53: 13,242,553 km (0.093 R)
- M54: 13,458,572 km (0.096 R)
- M55: 13,748,493 km (0.091 R)
- M56: 14,113,662 km (0.078 R)
- M57: 14,236,182 km (0.091 R)
- M58: 14,457,587 km (0.113 R)
- M59: 14,581,005 km (0.112 R)
- M60: 14,729,706 km (0.056 R)
- M61: 15,279,029 km (0.106 R)
- M62: 15,632,080 km (0.106 R)
- M63: 15,835,084 km (0.096 R)
- M64: 16,294,948 km (0.076 R)
- M65: 16,423,453 km (0.046 R)
- M66: 17,149,601 km (0.082 R)
- M67: 17,332,708 km (0.073 R)
- M68: 17,701,018 km (0.07 R)
Planet 4 - Gas Giant
Semi-Major Axis: 3.86 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 527.4
Radius: 13.1
Gravity: 3.07 G
Time & Orbit
Eccentricity (e): 0.043
Orbit Range: 3.69 AU - 4.03 AU
Year: 5144 Days
Day: 9.3 Hours
Environment
Temp: -222 °C
Axial Tilt: 20.9 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (71)
Outer Limit: 69,747,765 km
- M1: 163,810 km (0.11 R)
- M2: 260,749 km (0.109 R)
- M3: 448,644 km (0.097 R)
- M4: 638,334 km (0.075 R)
- M5: 845,527 km (0.034 R)
- M6: 1,036,414 km (0.086 R)
- M7: 1,144,274 km (0.099 R)
- M8: 1,313,918 km (0.091 R)
- M9: 1,462,020 km (0.032 R)
- M10: 1,584,840 km (0.095 R)
- M11: 2,145,682 km (0.089 R)
- M12: 2,485,120 km (0.087 R)
- M13: 2,577,422 km (0.118 R)
- M14: 2,708,619 km (0.105 R)
- M15: 3,056,434 km (0.102 R)
- M16: 3,710,027 km (0.111 R)
- M17: 3,901,812 km (0.09 R)
- M18: 4,075,046 km (0.108 R)
- M19: 4,339,685 km (0.116 R)
- M20: 4,519,352 km (0.087 R)
- M21: 4,932,541 km (0.084 R)
- M22: 5,214,982 km (0.08 R)
- M23: 5,624,132 km (0.076 R)
- M24: 5,968,955 km (0.082 R)
- M25: 6,194,399 km (0.083 R)
- M26: 6,346,241 km (0.112 R)
- M27: 6,679,545 km (0.11 R)
- M28: 6,939,845 km (0.095 R)
- M29: 7,283,172 km (0.11 R)
- M30: 7,877,076 km (0.114 R)
- M31: 8,180,012 km (0.12 R)
- M32: 8,374,788 km (0.116 R)
- M33: 8,542,936 km (0.093 R)
- M34: 8,797,252 km (0.056 R)
- M35: 9,082,835 km (0.097 R)
- M36: 9,869,121 km (0.117 R)
- M37: 10,375,510 km (0.093 R)
- M38: 11,197,251 km (0.087 R)
- M39: 11,320,669 km (0.045 R)
- M40: 11,600,268 km (0.098 R)
- M41: 12,548,718 km (0.074 R)
- M42: 12,644,910 km (0.112 R)
- M43: 12,741,400 km (0.093 R)
- M44: 13,653,648 km (0.046 R)
- M45: 14,217,782 km (0.101 R)
- M46: 14,993,147 km (0.074 R)
- M47: 15,334,679 km (0.068 R)
- M48: 15,609,640 km (0.111 R)
- M49: 16,339,379 km (0.111 R)
- M50: 16,725,940 km (0.116 R)
- M51: 16,832,004 km (0.102 R)
- M52: 16,973,674 km (0.054 R)
- M53: 18,594,567 km (0.03 R)
- M54: 19,072,083 km (0.101 R)
- M55: 19,627,989 km (0.081 R)
- M56: 19,851,937 km (0.057 R)
- M57: 20,264,528 km (0.066 R)
- M58: 20,604,264 km (0.119 R)
- M59: 21,404,314 km (0.118 R)
- M60: 22,098,149 km (0.102 R)
- M61: 23,825,406 km (0.093 R)
- M62: 25,270,521 km (0.063 R)
- M63: 25,432,835 km (0.104 R)
- M64: 25,636,288 km (0.117 R)
- M65: 25,799,350 km (0.086 R)
- M66: 25,962,860 km (0.111 R)
- M67: 26,044,690 km (0.111 R)
- M68: 26,208,649 km (0.099 R)
- M69: 27,241,323 km (0.111 R)
- M70: 27,741,728 km (0.118 R)
- M71: 28,161,201 km (0.081 R)
Planet 5 - Gas Giant
Semi-Major Axis: 5.2 AU
Status: Outer (Cold)
Composition: Hydrogen/Helium Atmosphere
Physical Data
Mass: 760.9
Radius: 11.9
Gravity: 5.37 G
Time & Orbit
Eccentricity (e): 0.11
Orbit Range: 4.63 AU - 5.77 AU
Year: 8043 Days
Day: 11.3 Hours
Environment
Temp: -218 °C
Axial Tilt: 41.8 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (82)
Outer Limit: 69,747,765 km
- M1: 149,299 km (0.096 R)
- M2: 297,251 km (0.096 R)
- M3: 392,844 km (0.115 R)
- M4: 730,187 km (0.119 R)
- M5: 940,372 km (0.026 R)
- M6: 1,380,938 km (0.038 R)
- M7: 1,521,261 km (0.086 R)
- M8: 1,904,231 km (0.064 R)
- M9: 2,176,499 km (0.068 R)
- M10: 2,365,142 km (0.1 R)
- M11: 3,015,444 km (0.068 R)
- M12: 3,253,305 km (0.106 R)
- M13: 3,497,299 km (0.1 R)
- M14: 3,719,302 km (0.102 R)
- M15: 4,442,907 km (0.079 R)
- M16: 4,623,173 km (0.117 R)
- M17: 5,146,915 km (0.09 R)
- M18: 5,400,034 km (0.106 R)
- M19: 5,495,927 km (0.114 R)
- M20: 5,819,956 km (0.061 R)
- M21: 6,017,425 km (0.109 R)
- M22: 6,317,817 km (0.117 R)
- M23: 6,589,038 km (0.087 R)
- M24: 6,864,149 km (0.032 R)
- M25: 7,354,531 km (0.105 R)
- M26: 7,532,402 km (0.077 R)
- M27: 7,639,963 km (0.075 R)
- M28: 7,892,634 km (0.096 R)
- M29: 8,704,950 km (0.119 R)
- M30: 10,012,137 km (0.074 R)
- M31: 10,448,065 km (0.078 R)
- M32: 10,849,885 km (0.094 R)
- M33: 11,093,430 km (0.114 R)
- M34: 11,544,617 km (0.098 R)
- M35: 12,169,637 km (0.118 R)
- M36: 12,380,421 km (0.082 R)
- M37: 12,592,401 km (0.034 R)
- M38: 13,670,403 km (0.067 R)
- M39: 14,109,922 km (0.105 R)
- M40: 14,375,757 km (0.054 R)
- M41: 14,867,635 km (0.062 R)
- M42: 14,957,693 km (0.112 R)
- M43: 15,228,914 km (0.093 R)
- M44: 15,684,439 km (0.078 R)
- M45: 16,144,602 km (0.104 R)
- M46: 16,237,203 km (0.101 R)
- M47: 16,376,329 km (0.096 R)
- M48: 17,266,885 km (0.086 R)
- M49: 18,608,030 km (0.1 R)
- M50: 18,753,589 km (0.075 R)
- M51: 19,242,026 km (0.071 R)
- M52: 19,340,162 km (0.053 R)
- M53: 19,438,448 km (0.119 R)
- M54: 19,537,033 km (0.026 R)
- M55: 20,531,111 km (0.025 R)
- M56: 21,899,333 km (0.101 R)
- M57: 22,104,581 km (0.086 R)
- M58: 22,465,112 km (0.109 R)
- M59: 22,931,708 km (0.108 R)
- M60: 23,349,086 km (0.118 R)
- M61: 23,769,007 km (0.026 R)
- M62: 23,927,132 km (0.059 R)
- M63: 24,297,537 km (0.049 R)
- M64: 25,097,436 km (0.067 R)
- M65: 25,527,530 km (0.079 R)
- M66: 25,743,550 km (0.053 R)
- M67: 26,068,626 km (0.102 R)
- M68: 26,286,141 km (0.109 R)
- M69: 26,832,622 km (0.051 R)
- M70: 28,382,606 km (0.045 R)
- M71: 28,606,254 km (0.111 R)
- M72: 29,112,045 km (0.102 R)
- M73: 29,224,692 km (0.097 R)
- M74: 29,507,282 km (0.081 R)
- M75: 29,961,312 km (0.112 R)
- M76: 30,589,324 km (0.11 R)
- M77: 33,085,963 km (0.067 R)
- M78: 34,031,421 km (0.09 R)
- M79: 39,951,009 km (0.102 R)
- M80: 40,201,885 km (0.09 R)
- M81: 40,516,190 km (0.084 R)
- M82: 42,227,589 km (0.081 R)
Planet 6 - Ice Giant
Semi-Major Axis: 8.14 AU
Status: Outer (Cold)
Composition: Methane/Ammonia Ices
Physical Data
Mass: 850.6
Radius: 6
Gravity: 23.63 G
Time & Orbit
Eccentricity (e): 0.124
Orbit Range: 7.13 AU - 9.15 AU
Year: 15752 Days
Day: 20.1 Hours
Environment
Temp: -242 °C
Axial Tilt: 8.2 °
Atmosphere: Hâ‚‚, CHâ‚„
Biome: None
Satellites (96)
Outer Limit: 69,747,765 km
- M1: 134,040 km (0.094 R)
- M2: 570,417 km (0.115 R)
- M3: 695,929 km (0.078 R)
- M4: 973,284 km (0.092 R)
- M5: 1,740,721 km (0.114 R)
- M6: 2,344,348 km (0.107 R)
- M7: 2,513,244 km (0.063 R)
- M8: 2,721,185 km (0.043 R)
- M9: 3,416,067 km (0.029 R)
- M10: 4,533,713 km (0.091 R)
- M11: 4,958,272 km (0.116 R)
- M12: 5,044,590 km (0.11 R)
- M13: 5,351,116 km (0.078 R)
- M14: 5,439,827 km (0.076 R)
- M15: 5,484,258 km (0.037 R)
- M16: 5,753,983 km (0.094 R)
- M17: 5,844,938 km (0.093 R)
- M18: 7,166,336 km (0.065 R)
- M19: 8,523,787 km (0.113 R)
- M20: 8,835,998 km (0.099 R)
- M21: 9,311,570 km (0.098 R)
- M22: 9,364,827 km (0.11 R)
- M23: 9,525,495 km (0.104 R)
- M24: 10,012,885 km (0.114 R)
- M25: 10,067,488 km (0.054 R)
- M26: 10,787,054 km (0.112 R)
- M27: 11,637,817 km (0.092 R)
- M28: 11,926,092 km (0.082 R)
- M29: 13,043,139 km (0.108 R)
- M30: 13,523,498 km (0.086 R)
- M31: 13,583,935 km (0.061 R)
- M32: 13,644,373 km (0.072 R)
- M33: 14,070,727 km (0.058 R)
- M34: 14,377,851 km (0.119 R)
- M35: 14,811,536 km (0.075 R)
- M36: 14,873,918 km (0.119 R)
- M37: 15,375,520 km (0.115 R)
- M38: 15,882,656 km (0.077 R)
- M39: 16,010,413 km (0.069 R)
- M40: 16,138,319 km (0.079 R)
- M41: 16,331,001 km (0.111 R)
- M42: 16,978,610 km (0.092 R)
- M43: 18,032,228 km (0.096 R)
- M44: 18,566,891 km (0.109 R)
- M45: 18,701,379 km (0.046 R)
- M46: 18,836,167 km (0.083 R)
- M47: 19,242,625 km (0.086 R)
- M48: 19,378,759 km (0.107 R)
- M49: 22,167,113 km (0.112 R)
- M50: 22,238,471 km (0.089 R)
- M51: 22,883,537 km (0.094 R)
- M52: 23,389,627 km (0.104 R)
- M53: 25,078,288 km (0.063 R)
- M54: 26,654,002 km (0.117 R)
- M55: 27,339,011 km (0.081 R)
- M56: 28,107,046 km (0.05 R)
- M57: 28,493,607 km (0.086 R)
- M58: 28,882,113 km (0.048 R)
- M59: 29,350,504 km (0.098 R)
- M60: 29,507,133 km (0.06 R)
- M61: 29,585,672 km (0.092 R)
- M62: 30,850,222 km (0.108 R)
- M63: 31,569,339 km (0.08 R)
- M64: 35,080,551 km (0.083 R)
- M65: 35,330,080 km (0.112 R)
- M66: 36,166,183 km (0.067 R)
- M67: 36,502,329 km (0.106 R)
- M68: 36,670,926 km (0.066 R)
- M69: 36,755,299 km (0.061 R)
- M70: 37,942,957 km (0.026 R)
- M71: 38,028,377 km (0.088 R)
- M72: 39,315,816 km (0.041 R)
- M73: 40,879,563 km (0.119 R)
- M74: 44,246,861 km (0.093 R)
- M75: 46,967,598 km (0.083 R)
- M76: 47,702,123 km (0.095 R)
- M77: 47,886,428 km (0.036 R)
- M78: 48,718,491 km (0.074 R)
- M79: 50,866,268 km (0.089 R)
- M80: 54,482,198 km (0.077 R)
- M81: 54,578,390 km (0.075 R)
- M82: 54,771,221 km (0.114 R)
- M83: 55,060,693 km (0.037 R)
- M84: 55,350,614 km (0.081 R)
- M85: 55,447,404 km (0.065 R)
- M86: 56,223,667 km (0.11 R)
- M87: 57,983,387 km (0.104 R)
- M88: 58,869,904 km (0.116 R)
- M89: 59,166,407 km (0.109 R)
- M90: 59,265,440 km (0.033 R)
- M91: 61,155,909 km (0.086 R)
- M92: 62,259,492 km (0.086 R)
- M93: 63,673,491 km (0.108 R)
- M94: 66,224,883 km (0.07 R)
- M95: 66,636,128 km (0.074 R)
- M96: 67,875,097 km (0.066 R)
Kuiper Belt
Range: 30 - 50 AU
Composition
Type: Dwarf Planets/TNOs (Ices)
Reservoir of dwarf planets and volatile ices.
Outer System
Oort Cloud
Range: 210 - 15,511 AU
Composition
Type: Cometary Reservoir
System's final boundary, containing trillions of icy planetesimals.